Limiting Amino Acids in Calves above 3 Months of Age When a Low-Lysine Diet was Given
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چکیده
منابع مشابه
Limiting amino acids for a corn and soybean meal diet in weaned calves less than three months of age.
Holstein bull calves (n = 51) weaned at 6 wk of age were used in four N balance trials for 4 wk (Trials 1 to 3) or for 2 wk (Trial 4) from 8 wk of age to identify limiting amino acids for a corn and soybean meal diet. The calves were trained to maintain reflex closure of the reticular groove throughout the trials. In Trial 1, administration of .111 g of DL-methionine plus .333 g of L-lysine mon...
متن کاملLimiting amino acids for growing lambs fed a diet low in ruminally undegradable protein.
Ruminally cannulated Rambouillet wether lambs were used in three 6 x 6 Latin square experiments (n = 6/experiment) to determine which essential AA limit N retention. Lambs (BW = 36.9 +/- 1.9 kg for Exp. 1, 35.1 +/- 1.4 kg for Exp. 2, and 46.0 +/- 1.3 kg for Exp. 3) were housed in metabolism crates and limit-fed (DMI = approx. 1.8% of BW daily) twice daily a soybean hull-based diet low in rumina...
متن کاملThe utilization of protein from a low-protein diet as determined by limiting essential amino acids.
Protein utilization was determined by assay with low-protein diets limiting in one of nine essential amino acids. The diets contained 50 g protein/kg and the amino acid score of the protein was 0.50. Protein utilization was found to be related to the particular limiting essential amino acids present. The usefulness of Bender's (1965) standard amino acid requirement for the estimation of amino a...
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BACKGROUND: A limited number of studies have investigated the inclusion of amino acids in calf starter. OBJECTIVES: This study was aimed to evaluate different levels of crude protein in starter and supplement- ing some protected amino acids on efficiency, health status and blood metabolites of dairy calves and to com- pare it with unprotected amino acids. <st...
متن کاملEvaluation of Protein Concentration and Limiting Amino Acids Including Lysine and Met + Cys in Prestarter Diet on Performance of Broilers
Four experiments were conducted, in two stages, to evaluate protein and limiting amino acids' (lysine and methionine + cystine) levels in pre-starter diets on broilers' performance. In each experiment of Stage 1, 640 new-born male Ross 308 cockerels were randomly allocated to eight dietary treatments with a 2 × 4 factorial arrangement. In experiment 1-1, two levels of crude protein (CP: 21% and...
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ژورنال
عنوان ژورنال: Nihon Chikusan Gakkaiho
سال: 1991
ISSN: 1346-907X,1880-8255
DOI: 10.2508/chikusan.62.572