Volume 8, Issue 4 (winter 2005)
jwss 2005, 8(4): 99-109 |
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B. Dastar, A. Golian, M. Danesh Mesgaran, F. Eftekhari Shahroodi, H. Kermanshahi. Digestible Lysine and Sulfur Amino Acid Requirements of Young Male Broilers in the Starter Period. jwss 2005; 8 (4) :99-109
URL: http://jstnar.iut.ac.ir/article-1-305-en.html
URL: http://jstnar.iut.ac.ir/article-1-305-en.html
Abstract: (23713 Views)
Digestible lysine and sulfur amino acid (SAA) requirements of Ross male broilers were determined during the starter period in two experiments. Broilers were fed a control corn-soy diet (3200 kcal MEn/kg and 23% CP) for 6 days and then randomly assigned to dietary treatments until 16 days of age. The basal diet containing 19% CP was prepared in order to be deficient in lysine for experiment 1 and SAA for experiment 2. Seven graded increment levels of L-lysine HCl or Dl-methionine were added in absences of starch in experiment 1 and 2, respectively. All diets contained 3200 kcal MEn/kg and all essential amino acids, except for the test amino acid, were 10% higher than the NRC (1991) recommendations.
The digestible lysine requirements of broilers based on broken-line and exponential models were 1.04 and 1.01%, respectively. The digestible SAA requirements for the mentioned models were 0.846 and 0.841%, respectively.
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