J. Appl. Poult. Res.
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J APPL POULT RES 1995. 4:395-401
© 1995 Poultry Science Association
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Research Reports

Predicting Amino Acid Requirements for Broilers at 21.1°C and 32.2°C

Milan Hruby, Melvin L. Hamre and Craig N. Coon

Department of Animal Science, University of Minnesota, St. Paul, MN 55108; Phone: (612) 624-6263; FAX: (612) 625-5789

Correspondence: Craig N. Coon

The dynamic amino acid requirements for broilers were predicted using growth data from a free-choice experiment. Protein and lipid weight gains and maintenance needs contributed to amino acid requirement calculations. The requirements obtained were compared to NRC recommendations. The predicted requirements for lysine and TSAA were similar to NRC data; however, male broilers had greater requirements for the observed amino acids than did female broilers because of a higher growth rate. The high environmental temperature did not show any effect on requirements of amino acids expressed as a ratio of g of amino acids: Mcal of TMEn.

Key Words: Amino acid requirement • broiler • temperature






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