FlyDubai Essay Example | Topics and Well Written Essays - 500 words

FlyDubai - Essay Example Fly Dubai aims at attracting more clients through the price reduction strategy while at the same time providing an improved quality service (Croft 2014, p. 62). In addition, another generic strategy employed by the firm is the expansion of the Airline to various destination sites. Increase in destination sites implies increase of customers seeking their services. Fly Dubai have dedicated themselves in opening new flying destinations to various countries hence increasing on their income. Competitors who are slow in opening new destination places eventually become less sort after (Croft 2014, p.90). Fly Dubai has the grand strategy of becoming the best company in Dubai by offering services that are beyond the expectation of its customers (Croft 2014, p.78). Fly Dubai aims at achieving this through partnering up with companies and businesses that are in line with its grand strategy. The company aims at partnering up with major stakeholders that will help it accomplish the following in the near future: These include the creation of new taxiways plus runways in order to ease on congestion in and out of airports (Croft 2014, p.67). In addition, they opt to buy new aircrafts fitted with the latest technology, expand cargo facilities, purchase new ground equipment’s, train their staff, set up a new fire station to be responsible for emergencies, conduct regular maintenance checks on all place to ensure they are in good condition before flying to a given destination, and expand their catering services. Furthermore, they aim at relocating the general aviation to Dubai world Cent ral. All these belong to their grand strategy of becoming the leading aviation industry in the world and in Dubai in particular (Croft 2014, p.45). The grand strategy employed by Fly Dubai is expected to make it efficient and help it improve the number of clients using their services (Croft 2014, p. 34). In keeping up with technology and making the various

Smoking or secondhand smoking Research Paper Example | Topics and Well Written Essays - 1500 words

Smoking or secondhand smoking - Research Paper Example This article briefly discusses the merits and demerits of this hypothesis and in the end suggests a method of controlling the rising level of smoking in the United States of America. It shall also briefly touch the history of smoking, the reason why it escalated and why it fell. These previous trends are kept as a focal point in the end when a recommendation for action is presented in the conclusion. Smoking and Its Increasing Prevalence Introduction All over the globe including the U.S.A, there is a rising concern by the medical agencies and public health insitutions in regards to the vice of Smoking. They are calling for Hollywood movies that contain scenes where people are smoking; to be rated as adult or explicit. The concept and reasoning behind this outcry is that enforcing such a rating might end up reducing the number of youth who are exposed to such scenes, within the course of watching a movie, that according to them, is one of the most direct causes for young teens to take up smoking and even that, at an early stage of their lives (Cnossen, 2008). With the help of a scientific consensus conducted by a huge spectrum of professional health organizations that includes the World Health Organization, National Cancer Institute and the United States Centers for Disease Control and Prevention displayed that the films and movies which contain scenes in which the actors are smoking acts as a catalyst in inciting the young people to smoke and is the consistent finding of a dose response relationship, and like in any concern in regards to the public health which is related to a dose response. The single best alternative in order to deal with such a problem is lowering the dose, that recalls the topic of discussion. There needs to be the ratings of adult content for any movies which have use of tobacco and live smoking on screen in it (Eysenck, 2006). Simon Chapman and Matthew C. Farrelly published an essay in the PLoS Medicine. They made four arguments in opposi tion to the change of rating of movies that have smoking scenes to adult. The first and foremost point they suggest is that those researches or studies that show the link between acceptance of smoking by teenagers at an early age and their exposure to movies or film scenes that have smoking in them are not in any way controlled, which means that they are free from any sort of manipulation of numerous other factors for instance alcohol, violence, recreation drug portrayal, coarse language and of course sexual content and also smoking. The next point they presented states, that any claims in regards to the exposure to smoking in the movies resulting in an increasing in smoking prevalence in youth is crudely reductionist, while at the same time blatantly ignoring the huge exposure to such scenarios of smoking littered elsewhere throughout the society. Thirdly they further state that in regards to the classification of movies to adult rating, it is a futile gesture since the children ca n access more of such material by using the more popular medium, the internet. Lastly they say there is a merit of concern over the assumption that in case any cause is felt rational enough, the state itself needs to implement the control censor on any and all the cultural artifacts for instance movies, arts, books and theatre that are present within its’ jurisdiction (Chapman & Farrelly, 2011). Discussion The beliefs which Matthew & Simon’

Water Soluble Vitamins for Poultry

Water Soluble Vitamins for Poultry The vitamins are a very important class of the nutrients. They play various important roles in the life cycle of any living-being. The absence or deficiency of the vitamins in poultry causes serious problems. The water soluble vitamins are very important sub-class of vitamins. In the poultry which can not synthesize these vitamins in their body these should be provided in the diets means these are dietary essential. The inclusion of the water soluble vitamins accurately, according to the needs of birds, production stage, physiological state of the birds and environmental conditions is very necessary to avoid the problems and to gain maximum performance because these vitamins are required by the birds in many systems including energy metabolism, growth, proper blood flow, development of skeleton, compensation of the stress, egg production, fertility, anti-oxidants for semen and proper development and viability of the growing embryos. It means these are not only important for current b irds but also their provision in an accurate way will ensure the next generation of the birds. Key words: roles, water soluble vitamins, poultry. Introduction The term vitamin was first used in 1912. Vitamins are a group of complex organic compounds which are present in minute amounts in natural feedstuffs. These are required for normal metabolism and the deficiency of these compounds in the feed causes deficiency diseases. The vitamins are divided into two groups depending upon their solubility i.e. Fat soluble vitamins which include Vitamin A, D, E and K. Water soluble vitamins which are Vitamin B-complex and vitamin C. The names, synonyms and the two classes i.e. fat and water soluble can be summarized as: Vitamin names Synonyms Fat soluble Vitamin A1 Retinol, retinal, retinoic acid Vitamin A2 Dehydroretinol Vitamin D2 Ergocalciferol Vitamin D3 Cholecalciferol Vitamin E Tocopherol, tocotrienols Vitamin K1 Phylloquinone Vitamin K2 Menaquinone Vitamin K3 Menadione Water soluble Thiamin Vitamin B1 Riboflavin Vitamin B2 Niacin Vitamin PP, Vitamin B3 Vitamin B6 Pyridoxol, pyridoxal, pyridoxamine Pantothenic acid Vitamin B5 Biotin Vitamin H, vitamin B8 Folic acid Folacin, folate, Vitamin M, Vitamin Bc, Vitamin B9 Vitamin B12 Cobalamin Choline Gossypine Vitamin C Ascorbic acid (Adopted from McDowell, 2004) Poultry and other monogastric animals are dependent on dietary sources of vitamins to a much greater degree than are ruminants. It is considered that animals with fully functional rumen can not suffer from a deficiency of vitamin B-complex. Vitamin B12 is unique in that it occurs in plant tissues as a result of microbial synthesis (McDowell, 2004). Thiamin (B1) is required to control appetite and reduces death rate, Riboflavin (B2) is responsible to control curly-toe paralysis, proper growth and proper egg production, Pantothenic acid(B5) is necessary for controlling dermatitis and improper lesions on the mouth and feet, Niacin (B3) is involved in proper confirmation of legs, tongue and mouth cavity, Choline ensures proper growth and proper egg production, Vitamin B12 is required to control anemia and to control early embryonic death, Folic acid (B9) is required for proper growth, controlling of anemia, proper feathering and proper egg production, Biotin (B8) is required to control d ermatitis o feet, around eyes and beak and Ascorbic acid(vitamin C) is required to normal growth and development, growth and repair of tissues, formation of collagen, cartilage, bones, avoid stresses and wound healing (Unknown, 2002). Vitamin C (vit C) is a water soluble antioxidant found in cytosol and extracellular fluids and it can directly scavenge super oxide hydroxyl radicals and single oxygen species (Clarkson and Thompson, 2000). It is thought to exert its effects on the immune system through the enhancement of neutrophil production and through protection of the cell against super oxide radical damage (Bendich et al., 1986). Under normal conditions birds can synthesize sufficient amounts of vit C (Roy and Guha, 1958), however in the stress conditions birds may require an external source of vit C (Meade S.M. 2004) to provide non-specific resistance against infections and overcome stress and therefore improving productivity (Pardue and Thaxton, 1985). The phagocyte activity is enhanced in the presence of vit C. There is a higher quantity of the superoxides found in the phagocytes when sufficient amounts of vit C are found and further increase in the level of vit C further increases the amount of free radicals in phagocytes (Scarpa et al., 1983; Som et al., 1983). Viral infections have been shown to cause a depletion of leukocyte ascorbate, which resulted in varying degrees of non-specific immunosuppression and a reduction in serum vit C concentration (Thomas and Holt, 1978; Bendich et al., 1986). The role of vit C in controlling of stress has been documented many a times. There was a proof that by providing external vit C source at a rate of 330ppm the blood levels of vit C are elevated (Nestor et al., 1972). Another study showed that a 1000ppm adding of vit C reduces exogenous cortisol related immunosuppression. Some studies have also reported that vit C decreases heat shock protein 70 and plasma corticosterone response in chicken subjected to cyclic heat stress (Mahmoud et al., 2003, 2004). Vitamin C supplementation in feed or water can also reduce the sensation of fear in the birds (Jones, R. B., 1996). Pardue and Thaxton (1986) documented the effects of supplementation with vit C on a number of characteristics including growth, reproductive performance, immunosuppression and mortality. It was also documented by Satterlee et al., 1989; Kutlu and Forbes, 1993a; McKee and Harrison, 1995) Poultry under intensive production systems are particularly susceptible to vit deficiencies so to avoid this poultry feeds are supplemented normally with B2, niacin, pantothenic acid, B12 and choline out of water soluble vitamins (Scott et all. 1982). It is to be noted that Thiamin, vitamin B6, biotin and folacin are mostly present in adequate quantities in the major ingredients such as corn-soybean meal-based diets and poultry can normally produce a sufficient amount of ascorbic acid by its own (McDowell, L. R. 2004). Vitamin needs of new strains developed for improved production are higher. Leg problems seen in fast growing strains of broilers can be corrected in part by higher levels of biotin, folacin, niacin and choline (Roche 1979). Stress and disease conditions in animals may increase the basic requirement for certain vitamins. Nutrient levels that are adequate for growth, feed efficiency, gestation and lactation may not be adequate for normal immunity and for maximizing the a nimals resistance to disease (Cunha 1985; Nockels et al. 1996). Diseases and microorganisms affecting the gastro intestinal tract reduce the absorption as well as the production of vitamins also the conditions affecting the G.I.T. cause a reduction in vitamin production and absorption i.e. diarrhea and vomiting (McDowell, L.R., 2004). Mycotoxins and internal bleeding in poultry also causes a reduced efficiency of vitamins (McDowell, L.R., 2004). Vitamin antagonists (antimetabolites) interfere with the activity of various vitamins (Oldsfield, 1987). Under commercial production a higher level of the vitamins is helpful for optimum production and performance this also helps in achieving best growth rates, feed utilization and health and in part also helps to increase body reserves (Coelho, 1996). The ascorbic acid acts as an antioxidant for the avian spermatozoa (Surai et all, 2001). Ascorbic acid supplementation enhances the ejaculation qualities of male fowl (Surai et all, 2001). In the hot and dry season offering the cold water supplemented with ascorbic acid increases weight gain and spleen but it will also cause a reduced size of wings (Abioja, et all, 2011). Classes of B-Complex Based on the functions the B-complex can be categorized into 3 classes, however some of the members fall into more than one class; Energy releasing Thiamine (B1), Riboflavin (B2), Niacin (B3), Pantothenic acid (B5), Piroxidine (B6), and Biotin. Hematopoietic Folic acid (B9), Cyanocobalamin (B12), Pantothenic acid (B5), and Piroxidine (B6). Other Thiamine (B1), Niacin (B3), Piroxidine (B6), Folic acid (B9), and Cyanocobalamin (B12). (Wilson, G. V.) Vitamin B-complex deficiencies Deficiency arises due to inadequate supplies of the vitamins and the signs develop over a time period. So if the vitamin levels provided are lower than the required levels then the classical deficiency signs will be seen in the birds. Generally the young and growing chicks are more prone to vitamin deficiencies and the developing embryo is the best model showing deficiencies of vitamins. Problems due to the B-complex deficiency arise quite abruptly and often seen in 5-7 days because there is a little storage of these in the body (Leeson, S. and J. D. Summers, 2001). In the researches carried out on poultry of different age groups it was shown that a deficiency in the availability of Thiamine (B1) caused a loss of appetite and increased death ratios (Poultry Health Services, 2009). Leeson, S. and J. D. Summers, 2001 stated that polyneuritis in the birds shows the later stages of thiamine deficiency which may arise due to the build up of the intermediates of carbohydrate metabolism. In mature birds it is seen approximately 3 weeks after they are being fed a thiamine deficient feed. Poultry may also suffer from neuromuscular problems, resulting in impaired digestion, general weakness, star gazing and frequent convulsions (Leeson, S. and J. D. Summers, 2001). A deficiency in the availability of Riboflavin (B2) caused increased occurrence in the curly toe paralysis, poor growth and poor egg production (Poultry Health Services, 2009). Many tissues especially epithelium and myelin sheath are affected due to feeding of a feed which is d4eficient in riboflavin and on postmortem the characteristic sign of riboflavin deficiency is marked enlargement of the sciatic and brachial nerve sheath with the sciatic nerve showing the most pronounced effects (Leeson, S. and J. D. Summers, 2001). A feeding programme with a deficient amount of Pantothenic acid (B5) is evident as occurrence of dermatitis and lesions on mouth and feet (Poultry Health Services, 2009). According to Leeson, S. and J. D. Summers, 2001 the major lesions due to deficiency of pantothenic acid involve nervous system, the adrenal cortex and the skin. Niacin (B3) deficiency is shown by bowed legs and inflammation of tongue and mouth cavity (Poultry Health Services, 2009). Leeson, S. and J. D. Summers, 2001 report that niacin deficiency is characterized by severe metabolic disorders of skin and digestive organs, signs being the loss of appetite, retarded growth, general weakness and diarrhea in the birds. A feeding programme having deficiency of pyridoxine (B6) is characterized by retarded growth, dermatitis, convulsions, anemia and there may also be reduced nitrogen retention (Leeson, S. and J. D. Summers, 2001). Choline deficiency is evident from poor growth, fatty liver, decreased egg production (Poultry Health Services, 2009). Leeson, S. and J. D. Summers, 2001 report the deficiency of choline in growing chicks is evident from poor growth and perosis. Cobalamin (B12) deficiency is shown by cases of anaemia, poor growth, embryonic mortality (Poultry Health Services, 2009). According to Leeson, S. and J. D. Summers, 2001 a deficiency of B12 in growing chicks showed decreased weight gain, decreased feed intake, poor feathering and poor nervous system. Folic acid (B9) deficiency is evident from poor growth, anaemia, poor feathering and poor egg production (Poultry Health Services, 2009). A deficiency of folic acid in the experimental birds caused macrocytic (megaloblastic) anemia and leukopenia i.e. reduced white blood cells (Leeson, S. and J. D. Summers, 2001). Biotin (B8) deficiency increases the dermatitis on feet and skin around eyes and beak (Unknown, 2004; Poultry Health Services, 2009; Roche 1979; Leeson, S. and J. D. Summers, 2001). The diseases and problem seen due to deficiencies of the water soluble vitamins in poultry can be summarized in the following table Deficient vitamin: Thiamine (B1) Evident deficiency signs: loss of appetite increased death ratios polyneuritis impaired digestion general weakness star gazing frequent convulsions Deficient vitamin:  Riboflavin (B2) Evident deficiency signs: curly toe paralysis poor growth poor egg production affected epithelium and myelin sheath Deficient vitamin:  Pantothenic acid (B5) Evident deficiency signs: dermatitis lesions on mouth and feet Deficient vitamin:  Niacin (B3) Evident deficiency signs: bowed legs inflammation of tongue and mouth cavity Loss of appetite retarded growth general weakness diarrhea Deficient vitamin:  pyridoxine (B6) Evident deficiency signs: retarded growth dermatitis convulsions anemia Choline poor growth fatty liver decreased egg production perosis Deficient vitamin:  Cobalamin (B12) Evident deficiency signs: anaemia poor growth embryonic mortality Decreased weight gain decreased feed intake poor feathering Poor nervous system. Deficient vitamin:  Folic acid (B9) Evident deficiency signs: poor growth anaemia poor feathering poor egg production leukopenia Deficient vitamin:  Biotin (B8) Evident deficiency signs: dermatitis on feet and skin around eyes and beak (Poultry Health Services, 2009; Roche 1979; Leeson, S. and J. D. Summers, 2001) Role of water soluble vitamins as Co-enzymes Riboflavin or vitamin B2 is a prosthetic part of over a dozen enzymes in the animal body including cytochromes reductase, lipoamide dehydrogenase, xanthine oxidase, L- and d-amino acid oxidase, histaminase and others all of which are vital for oxidation-reduction reactions involved in cell respiration (Leeson, S. and J. D. Summers, 2001). Niacin or nicotinic acid is important in more than 100 different enzymatic reactions (Rasmusson R.) It is the vitamin component in two important enzymes i.e. nicotinamide adenine dinucleotide (NAD) and nicotinamide adenine dinucleotide phosphate (NADP) reported by Leeson, S. and J. D. Summers, 2001. Pantothenic acid (B5) is the prosthetic group of coenzyme A, an important coenzyme involved in many reversible acetylation reactions in carbohydrate, fat and amino acid metabolism (Leeson, S. and J. D. Summers, 2001). Biotin (B8) is an essential co-enzyme in carbohydrate, fat and protein metabolism (Leeson, S. and J. D. Summers, 2001). Vitamin B12 is an essential part of several enzyme systems, with most reactions involving the synthesis of one carbon units i.e. methyl groups (Leeson, S. and J. D. Summers, 2001). Role of Ascorbic acid (vitamin C) in birds under stressful conditions The efficacy of supplementing birds with vitamin C under stressful conditions depends upon its ability to elevate plasma vitamin C (Pardue et al., 1984). Nestor et al., (1972) reported that 330ppm vitamin C elevated blood vitamin C. Pardue et al., (1984) reported that vitamin C supplementation at a rate of 250ppm increased plasma vitamin C concentrations in broilers. But Sell et all in 1997 found that 300 mg/kg vitamin C was unable to increase plasma vitamin C levels. Kolb (1984) strongly suggested that supplemental vitamin C should be provided in poultry and livestock diets as a stress alleviator. Hill and Garren (1958) agreed and stated that vitamin C was an essential nutrient in chickens experiencing stress. Vitamin C supplementation at 300 mg/kg was able to decrease plasma corticosterone in stressed birds. These responses are supported by research suggesting that vitamin C suppresses adrenocortical steroidogenesis and depresses plasma corticosterone levels, therefore limiting som e of the deleterious responses associated with stress and delays the depletion of steroid hormone precursors (Pardue et al., 1985; Gross, 1992; Kutlu and Forbes, 1993). The action of vitamin C on adrenal steroidogenesis is associated with its ability to inhibit adrenal steroid hydroxylating enzymes (Kitabchi, 1967). Supplementation with 300 mg/kg of ascorbic acid resulted in a significant increase in plasma vitamin C throughout the experiment when compared to the Un-Supplemented birds (Meade, S.M., 2004). There is limited research examining the effects of vitamin C on lymphocyte subset populations in chickens. However, those experiments that have been demonstrated the effects of vitamin C on lymphocyte populations in association with disease or vaccination (Wu et al., 2000). The effect of dietary vitamin C supplementation is still controversial however vitamin C supplementation at 300 mg/kg alleviated stress-induced affects (Meade, S.M., 2004). These physiological and immunological findings suggest that vitamin C may be an anti-stress agent and may be an essential nutrient in poultry when poults are subjected to stressful conditions (Meade, S.M., 2004). Ascorbic acid as an anti oxidant for avian spermatozoa Ascorbic acid or vitamin c is water soluble anti oxidant present at high molar concentrations in spermatozoa and seminal plasma in a large number of animals. In poultry its concentration in semen averages 210 +-16.4microM (Surai et all 1986b). On a molar basis this concentration was more than 2.5 times higher than glutathione and more than 100 fold higher than alpha-tocopherol. Ascorbic acid was found almost equally distributed between spermatozoa and seminal plasma (Surai et all 1986b). This data was very useful in the development of an idea that vit. C plays an important role as a water soluble anti oxidant in the avian seminal plasma (Surai et all, 2001). Ascorbic acid effect on ejaculation quality of male Fowl Monsi and Onitchi in 1991 reported that fowl males housed under hot and humid conditions and supplemented with ascorbic acid showed a better overall ejaculation quality i.e. semen volume, motile sperm proportion and sperm number per ejaculate. The reported ascorbic acid supplementation level was 500mg/kg. However sperm motility was not affected. Dietary supplementations of ascorbic acid had the effects on semen of rainbow trout reflected by increased sperm motility and decreased decline in fertilizing capacity of spermatozoa after storage (Ciereszko and Dabrowski, 2000). A protective role of ascorbic acid in maintaining the sperm quality was also reported by Ciereszko and Dabrowski in 1996. However the low dietary levels of vitamin E and C (ascorbic acid) had no effects on the spermatozoa in mice rather the increased and higher supplementary levels decreased the number of spermatozoa/mg epididymis and increased the percentage of spermatozoa with misshapen heads (Ten et all, 1997). Role of ascorbic acid in weight gain A study was carried out in SW Nigeria on a group of broiler chicken. The birds were divided into four groups after the age of three weeks. A group was given cold water without any ascorbic acid and other group was given cold water with supplementation of ascorbic acid. Similarly two groups were made for normal unchilled water with and without ascorbic acid provision. The results of study showed a marked superior growth of breast meat and spleen in the group provided with cold water and ascorbic acid. However there was no affect of ascorbic acid supplementation on the growth parameters of the birds in any of the four groups. In addition there was a decreased wing length seen in these birds. The reason for this phenomenon to happen is that in hot climatic conditions a lot of the energy is wasted in panting and when cold water is provided the birds feel comfort and there is less panting seen. Also in stress corticosteroids are released which further decrease the weight gain. By providin g cold water these both conditions are avoided so better results are obtained. The cold water resulted in an overall more weight gain weekly and finally more live weight however decreased wing length, the vitamin c had no effect on the growth however it increased the breast meat and the spleen in birds, (Abioja, et all, 2011). Role of water soluble vitamins in Energy metabolism The transformation of dietary energy sources, such as carbohydrates, fats and proteins into cellular energy in the form of ATP requires several micronutrients as coenzymes and cofactors of enzymatic reactions, as structural components of enzymes and mitochondrial cytochromes, and as active electron and proton carriers in the ATP-generating respiratory chain(Groff et all, 1996, Depeint et all, 2006): (i) thiamine pyrophosphate (TPP; vitamin B1), CoA (containing pantothenic acid), flavin mononucleotide (FMN; derived from vitamin B2), flavin adenine dinucleotide (FAD; derived from vitamin B2) and nicotinamide adenine dinucleotide (NAD; derived from nicotinamide) are involved in the Krebs cycle and complexes I and II of the respiratory chain; (ii) biotin, CoA and FAD are involved in haem biosynthesis, which is an essential part of the cytochromes and important for the latter part of the mitochondrial respiratory chain; (iii) succinyl-CoA can feed into either the respiratory chain or the Krebs cycle depending on the needs of the cell. Depeint et all, in 2006 confirmed the essential role of vitamins B6, B12 and folate in maintaining the mitochondrial one-carbon transfer cycles by regulating mitochondrial enzymes. The same authors also emphasized the essential role of the B vitamin family in maintaining mitochondrial energy metabolism and how mitochondria in their role as the cellular organelles responsible for energy metabolism are compromised by a deficiency of any B vitamin (Depeint et all, 2006). Table given here summarizes the present state of knowledge with regard to the role or roles of individual water soluble vitamins in energy metabolism (adopted from Institute of medicine, 1998). Vitamins Function in energy metabolism Thiamine (B1) Essential cofactor in the conversion of carbohydrates to energy. Needed for normal muscle function, including the heart muscle. Involved in oxidative carboxylation reactions, which also require manganese ions. Riboflavin (B2) As a cofactor in the mitochondrial respiratory chain, helps in the release of energy from foods. Component of the main coenzymes FAD and FMN. Nicotinic acid, niacin (B3) As a cofactor in the mitochondrial respiratory chain, helps in the release of energy from foods. Transformed into NAD and NADP, which play a key role in oxidation -reduction reactions in all cells. Pyridoxine (B6) Helps in the release of energy from foods. Used as a cofactor by nearly 100 enzymatic reactions, mainly in protein and amino acid metabolism. Vitamin B12 Essential for metabolism of fats and carbohydrates and the synthesis of proteins. Interacts with folic acid metabolism. Biotin As a cofactor, involved in metabolism of fatty acids, amino acids and utilization of B vitamins. Pantothenic acid Plays an essential role in the Krebs cycle. Component of coenzyme A. Vitamin C Essential for synthesis of carnitine (transports long-chain fatty acids into  (Ascorbic acid) mitochondria) and the catecholamines, adrenaline and noradrenaline. Ascorbic acid facilitates transport and uptake of non-haem iron at the mucosa, the reduction of folic acid intermediates, and the synthesis of cortisol. Potent antioxidant. Folic acid Folates function as a family of cofactors that carry one-carbon (C1) units required for the synthesis of thymidylate, purines and methionine, and required for other methylation reactions. Folate is essential for metabolic pathways involving cell growth, replication and survival of cells in culture. Around 30 50% of cellular folates are located in the mitochondria. Toxicity arising due to water soluble vitamins Toxicities arise due to over supplementation levels or more inclusion rates of the nutrients. Generally the toxicity of the water soluble vitamins is not seen in the birds because of the reason that these vitamins have a very minimal storage in the body. If the inclusion rate of vitamin B-complex is at least 100x than the required level, it tends to cause toxicity in the poultry. Vitamin C, E and Biotin are moderately toxic, potentially causing problems at 20-30x the normal inclusion levels. Toxicity of vitamins administered in the drinking water is quite rare because the birds are reluctant to drink such fortified water (Leeson, S. and J. D. Summers, 2001). Conclusion From above discussion it can be concluded that the water soluble vitamins play many important roles in the poultry life including proper growth, production, weight gain, egg production, immunity, proper conformity, proper functioning, avoiding of stress due to many origins, proper feathering, proper skin condition and proper embryo development. The water soluble vitamins are required in the metabolism, in the oxidation and reduction reactions as coenzymes which mean these are vital for the survival of the animals. These also enhance the quality of the ejaculation in male fowl as well a act as antioxidants for the avian spermatozoa ensuring the fertility and avoiding deformities in the semen of poultry. The water soluble vitamin family member, ascorbic acid is also involved in extra gain of the breast meat which is most liked part of chicken meat in general.

Essay --

In Antigone, death is a central theme that is consistently present throughout the entire play. In this particular passage, the chorus proclaims that man’s access to resources will allow him to continue to exist; however, as long as man exists, so will death – a fate that no amount of resources can help anyone escape. In this essay, I will explore the correlation and significance of this passage, and more specifically, the correlation and relation to death, with particular characters of the play. These particular characters each have a different relation and perspective of death, however, as the story progresses, I will discuss why their relation, perspective and the way that which they acknowledge death itself evolves and changes so drastically. In the first part of the passage, ‘speech and thought’ and ‘mind for law’ refer to the attributes of man; what it means to be human. The passage is directly praising man for all the wonders of the human race; man who has taught himself, built a shelter, a city and created a law, man’s capability and skills to become accustomed to the land, to the very earth and nature itself, the world that they have been put in, man’s capacity to learn to adjust and survive and live in the way that we see fit. Antigone making the choice to go against the king, because of what she believes to be right, attempting to give her brother Polynices what she believes he deserves – this thought, ‘quick as the wind’, including every action she carried out after, was effortless and came naturally to her. The set of principals and values that each individual has and what they choose to believe in become like instinct; to fight for what you believe in b ecomes as natural as to look for ‘shelter from the arrows of the f... ...tten that he is not divine like the gods are. He is a man with plenty resources, and although by the end of the play, Creon is still living - he hasn’t escaped death. In the passage, note that while the chorus is listing the wonders of man, the accomplishments of human beings; each accomplishment is paired with an element of nature, wind, frost, sky and rain – and each accomplishment is referring to man applying control over nature, mirroring the confliction in the entire story. Creon represents the city, a man made empire, while Antigone stands for the gods, nature and herself. When Creon loses all the people that he cares for, nature seems to be punishing Creon for his disrespect. It appears that each step onward as we progress, we further distance ourselves from where we started, making each of our achievements and the wonders of man just as bad as they are good.

Self Presentation

Self presentation When you meet someone for the first time, it comes to your mind a certain impression about him or her. On the other side, that person also takes a certain impression about you. This impression might be positive or negative. It depends on how you present yourself to others. Unfortunately, the first impression is sometimes unfair because the person you meet for the first time may take a wrong impression about you. For example, my friend told me that before we became close friends, she was thinking that I am arrogant, but when she became close to me, she discovered that she took a wrong impression about me.In fact, I am not sociable and I don't take the initiative in getting to know others. That is why those who do not know me well think i am arrogant, but that is not true about me. The first impression whether it is true or not may affect the way you treat people and how they treat you forever. For example, I fall in love with someone. When we first meet each other, h e told me that he belongs to the royal family. Later, I discovered that he was lying to me. I know that he is from the upper class and he belongs to a prominent family, so there was no need to lie about his family name.Actually, because of this lie, I took an impression about him that he is not trustworthy, so we broke up. In most cases, the first impression lasts forever, so you should present yourself in a good image. To make others take a good impression about you, you must consider the following; First, be yourself. Don't tell anything that is not true about you. Show your real personality. Second, take care of your appearance. Your dress should be clean and appropriate to the customs of society in which you live. Moreover, be careful in your appointments.If you attend the meeting on time, you will get others’ respect because it shows that you care about them. In addition, smile to your audience, keep eye contact when you speak and listen and Speak clearly to let your aud ience understand what you say. Furthermore, choose your words which express what you want to say correctly. In short, we all should present ourselves in the right way to let others take a good impression about us in order to make relationships last longer. Samira Said Al Hajri. Assignment 1. Social psychology_D1.

Meaningful Social Studies Essay - 1514 Words

Meaningful Social Studies Introduction Today many classroom teachers are faced with the challenge of delivering meaningful and powerful social studies lessons to their students. This paper will explain how the learning cycle can help students gain a better understanding when learning new concepts. This paper will also give an example of a Native American Indians unit can be taught in a 4th grade classroom, covering the following contents: Location; Movement/Migration; and Individuals Groups, Institutions. In addition this paper will address the 4th grade performance objective(s) and Georgia social studies standards used in this unit. Additionally, this paper will explain and justify the use of various instructional strategies that†¦show more content†¦Some ways that teachers can implement the exploratory introduction phase in a lesson or unit is by, (a) asking students questions to prompt their recall of relevant prior knowledge learned; (b) using the K-W-L technique (what the students know, want to know, and wha t the students have learned); (c) or having the students make comparisons connecting the new concept to concepts the students already know (comparisons charts). The second phase of the learning cycle is the lesson development phase. In this phase students are exposed to new ideas or skills that can lead students learning to practice new skills and in using new content. The instructional strategies used in this phase may range from expository through the inquiry-based problem solving and decision making. Meyerson Secules, 2001 explains that, â€Å"inquiry learning approaches, students are put into situations that require critical thinking and encourage the internalizing of major concepts. Inquiry activities can also allow students the opportunity to confront, express, and analyze preconceptions and misconceptions in an active, nonthreatening way†. Teachers can provide students with instructional activities such as: having guest speakers; providing games; having real life demonstrations; role-playing; and simulations. The final phase of the learning cycle is theShow MoreRelatedThe Easy and Meaningful Integration of Social Studies and Language Arts1815 Words   |  8 PagesIt is not enough for our students to be citizens of the United States of America; they are faced with the challenge that no other generation has: they are citizens of the world. Social studies, as a focus in classrooms today must be more than a history class. 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Meeting At The Daily Drinkers Club - 909 Words

On Friday afternoon, I attended an Alcoholics Anonymous (AA) meeting at the Daily Drinkers Club. The people that ran this meeting were very helpful and once alcoholics, so they were open to answering any questions that I had. The meeting started promptly at 3:00 pm and the mediator Tony introduced himself. First, the preamble was read and two chapters (chapter 3 and a portion of chapter 5) out of the Alcoholics Anonymous book were read by the people who came to the meeting. One very important action that occurred was the collection of money for the meeting space. Since this rely heavily on donations to for have these meetings every day, they need at least $30.00/ daily to run sufficiently. The main discussion themes that were shared by the participants were their solutions to how they dealt with addiction and how taking ownership was their key to success. Promptly at 3:58 pm an AA participant read the â€Å"Vision for you† and the meeting was dismissed. 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We | |will also be a meeting place for artists and writers and a place for them to show off their work. We will create an atmosphere | |conducive to creative expression and promote the creative process. | |ObjectivesRead MoreSmirnoff Marketing Strategy Essay3743 Words   |  15 Pagesgeneration crowd drinkers. Usually drinkers that range from age 25-35 from all ethnic background and income level. Smirnoff Vodka can range in many drinks that may fit in different occasions from a casual soft drink in a business meeting to a strong drink for the party scene. There is a variety of products that Smirnoff Vodka contributes to the market. There are over forty Smirnoff Vodka products in the market which all contribute to over thirty drinks that are consumed in bars, clubs, hotels, and otherRead MoreCoffee and Milk Tea7162 Words   |  29 Pagesare students and young professionals, possible potential market for coffee and milk tea products. 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In areas that suffer poor socio-economic conditions, young people often face a lack of stimulation asRead MoreMarket Segment Analysis to Target Young Adult Wine Drinkers7369 Words   |  30 PagesMarket Segment Analysis to Target Young Adult Wine Drinkers Elizabeth C. Thach School of Business and Economics, Sonoma State University, 1801 E. Cotati Ave., Rohnert Park, CA 94928. E-mail: Liz.Thach@sonoma.edu Janeen E. Olsen School of Business and Economics, Sonoma State University, 1801 E. Cotati Ave., Rohnert Park, CA 94928. E-mail: Janeen.Olsen@sonoma.edu ABSTRACT Consumer segmentation in the wine industry takes on many forms: demographic, geographic, behavioral, and others+ In the