Protein nutrition growth

Kahn, L. P., Kyriazakis, I., Jackson, F. and Coop, R. L. (2000). Temporal effects of protein nutrition on the growth and immunity of lambs infected with Trichostrongylus colubriformis . International Journal for Parasitology, 30, 193-205. 

The remainder of this chapter takes on a more "nutritional" aura, ft concerns the concepts of growth and maintenance- The material may be especially intcresling to those involved in infant nutrition, animal science, and weight reduction by low-energy diets. The material reveals the tecliniques used for determining the protein requirement and the recommended daily allow ancc (RDA) for protein. Clinical issues involving protein nutrition, such as renal disease and gput, arc also Outlined. 

Szulc et al. (2005) reported that skeletal muscle mass was correlated positively with bone mineral content and bone mineral density in the Mediterranean Intensive Oxidant Study (MINOS). MINOS was a prospective study of osteoporosis and its determinants that showed that men with the least skeletal mass also had increased risks of falls due to impaired static and dynamic balance. The relative importance of muscle compared with hormonal and other nutritional effects on bone health may be argued in the MINOS study because factors such as dietary protein, insulin growth factor, and testosterone also affect bone directly, but chronically low muscle mass may provide a visible indicator of bone mass and bone density risk. Osteopenia and osteoporosis are seen as problems in elderly people. In countries with shortened life spans, bone health issues may go unnoticed. 

PROTEIN NUTRITION IN GROWTH REGULATION DURING EARLY DEVELOPMENT... 

Beside carbon source and cosubstrate for copolyester synthesis, bacterial growth rate and PHA production rate can be influenced by the nitrogen source needed for bacterial synthesis of biomass. In many cases a mixture of inorganic niterogen sources (e.g. ammonium sulfate) and protein hydrolizates can enhance as well the bacterial growth rate as the PHA production rate. The ideal composition of nutritional growth medium and PHA production medium have to be optimized for every interesting production strain. 

Campbell, R.G. and A.C. Dunkin, 1983b. The influence of protein nutrition in early life on growth and development of the pig. 2. Effects on the cellularity of muscle and subcutaneous adipose tissue. Br. J. Nutr. 50,619-626. 

Gelatin can be a source of essential amino acids when used as a diet supplement and therapeutic agent. As such, it has been widely used in muscular disorders, peptic ulcers, and infant feeding, and to spur nail growth. Gelatin is not a complete protein for mammalian nutrition, however, since it is lacking in the essential amino acid tryptophan [73-22-3] and is deficient in sulfur-containing amino acids. 

Amino acids are the main components of proteins. Approximately twenty amino acids are common constituents of proteins (1) and are called protein amino acids, or primary protein amino acids because they are found in proteins as they emerge from the ribosome in the translation process of protein synthesis (2), or natural amino acids. In 1820 the simplest amino acid, glycine, was isolated from gelatin (3) the most recendy isolated, of nutritional importance, is L-threonine which was found (4) in 1935 to be a growth factor of rats. The history of the discoveries of the amino acids has been reviewed... 

Animal Nutrition. Sulfur in the diets of mminant animals is beneficial to the animals growth (see Eeedsand FEED ADDITIVES). Sulfur increases feed intake, cellulose and dry matter digestion, and the synthesis of microbial protein. This results in increased meat, milk, and wool production (43). The special uses for sulfur in agriculture demonstrate a significant and continuing need for increased use of sulfur (44). 

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