Encyclopedia Of Animal Science - N ppsx

... efficiency of conversion tends to be lower in ruminants than in nonruminants. Functions of vitamin E include serving as an antioxidant and in the formation of cellular membranes. Vitamin E occurs in ... the crop needs without being a potential environmental problem. WATER QUALITY CONCERNS In nutrient management, water quality concerns focus on phosphorus (P) and nitrate-nitrogen (NO 3...

Ngày tải lên: 02/07/2014, 00:20

... U.S.A. INTRODUCTION Genomics is the science involving the study of the nucleotide sequence and organization of an organism’s DNA in its entirety, otherwise known as its genome. A useful analogy of genomics ... principle of independent assortment. This principle states that the segregation of genes for one gene pair is independent of (does not influence) the segregation of gene...

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... functioning as stim- ulatory and inhibitory regulators. Identification and enumeration of protein hormones and elucidation of their functions and regulation is ongoing. With full understand- ing ... secretory pattern, serum concentrations of IGF-I and IGF-II, and serum concentrations of glucose and insulin; concentra- tions of insulin and glucose are greater in boars than in gilts o...

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... the ends of the bone apart, resulting in overall elongation. The retention of cartilaginous growth plates permits elongation of bone by an internal mechanism, enabling structural support and maintenance ... and maintenance of the physical configuration of the bone necessary for tendon and ligament insertion sites. In contrast to the endochondral growth process, intra- membranous bon...

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... consumption as pork bellies continue to get leaner and thinner. Another important factor in pork quality is taint, which results from excessive concentrations of 5-alpha-androst- 16-en-3-one (androstenone) ... maintaining this balance. This includes proper design and siting of housing, manure storage, and mortality management facilities; and com- prehensive nutrient management planning. E...

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... Performance Environmental stimuli provoke an animal to respond, which in turn can influence performance processes in five ways. [5] Responses: 1. Alter internal functions. As an unintentional conse- quence, ... pathway. Third, the conversion of proline into pyrroline-5-carbox- ylate is catalyzed by NAD(P) + -dependent proline dehy- drogenase in microorganisms, but by oxygen-dependent prol...

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... depends on skillful integration of the animal s nutrient needs, the environment, feed composition and supply, and the economics of growth and production. Information and recommendations are readily ... phosphorylation by protein kinase A. Activation of b-adrenergic receptors and the cAMP signaling pathway by b-agonists results in the activation of rate- limiting enzymes in lipolysis...

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... an independent taxonomic unit. [2,3] Wild Bactrian camels, with fewer than 900 survivors in northwestern China and southwestern Mongolia, have been included on the United Nations’ (UN) list of ... feeds, nutrients, and energy, thereby enhancing subsequent hen welfare and production performance. REFERENCES 1. Wineland, M.J. Fundamentals of Managing Light for Poultry. In Commercial Chicken...

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... situations. Second, management and environment play significant roles in influencing disease rates. Consequently, veterinarians must evaluate man- agement and environment, not just the cow, to identify factors ... and decreasing nutrient excretion to the environment. NUTRIENT USE EFFICIENCY There is a relationship between level of milk production, nutrient intake, and the partition of nut...

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... F 2a as the luteolysin in swine: II. Characterization and comparison of prostaglandin F, estrogen and progestin concentrations in utero ovarian vein plasma of nonpregnant gilts. Prostaglan dins 1977, 14, ... behavior and dietary nutrients. It is critical to keep this basic principle in mind when designing animal environments because although an animal s inherent needs are able to chang...

Ngày tải lên: 02/07/2014, 00:20