Lysine: Specific effects of lysine on broiler production: comparison with threonine and valine
نویسندگان
چکیده
منابع مشابه
Lysine, methionine, phenylalanine, arginine, valine, isoleucine, leucine, and threonine maintenance requirements of broiler breeders.
Five hundred and sixty Cobb-Vantress broiler breeders were used to determine the maintenance requirement of dietary Arg, His, Ile, Leu, Lys, Met, Phe, Thr, and Val in 10 21-d assays using the comparative slaughter technique. Fifty sexually immature broiler breeder pullets per assay were given crystalline amino acid diets containing graded levels of Arg, His, Ile, Leu, Lys, Met, Phe, Thr, or Val...
متن کاملEffect of Supplementation with Synthetic Lysine on the Performance of Finisher Broiler Chicks
The study was conducted to evaluate the effect of different levels of synthetic lysine (sLys) on dry matter intake (DMI), average daily weight gain (ADG), dry matter conversion ratio (DMCR), carcass characteristics and economics of productionof finisher broiler chicks. As 240 day-old broiler chicks were randomly distributed to 12 pens of 20 chicks each and assigned to four treatment rations in ...
متن کاملRegulation of Lysine and Threonine Synthesis.
Human and monogastric animals cannot synthesize 10 out of the 20 amino acids and therefore need to obtain these from their diet. Among the essential amino acids, lysine and threonine are considered to be exceedingly important in that they are the most limiting essential amino acids in cereal grains, which represent the largest source of food worldwide (Bright and Shewry, 1983). Because of the n...
متن کاملFeeding trials with lysine- and threonine-fortified rice.
I . The effect of fortification of rice with lysine and threonine (at levels of z g and I g/kg respectively) on the growth of preschool children was assessed in feeding trials at a residential orphanage and a village day-care centre. 2. In the first trial, the children at the orphanage were offered a diet based on rice, to provide the recommended allowances of protein and energy. For the childr...
متن کاملThe production of fatty livers in rats on threonine-and lysine-deficient diets.
While studying the nicotinic acid-tryptophan relationship in rats on low casein rations containing choline (2), yellowish livers were observed on autopsy. These livers upon analysis were found to contain 16 per cent lipide. When an amino acid mixture containing threonine, valine, and histidine was added to the ration, normal liver lipides were found. A systematic study of the effects of these a...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1998
ISSN: 0032-5791
DOI: 10.1093/ps/77.1.118