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Isoleucine requirement of broiler chicks as affected by the concentrations of leucine and valine in practical diets.
Br Poult Sci. 1992 Jul; 33(3):561-8.BP

Abstract

1. Chicks were fed on an isoleucine-deficient diet, with 6 added concentrations of isoleucine to determine their isoleucine requirement and an additional 6 treatments were devised to determine their isoleucine requirement when dietary leucine and valine contents were increased. 2. The diet deficient in isoleucine contained 5.6 g/kg isoleucine with leucine and valine contents of 20.1 and 10.3 g/kg, respectively. Supplementation with leucine and valine increased these to 24.7 and 12.6 g/kg, respectively. 3. The isoleucine requirement was not affected by dietary leucine and valine contents in a diet with 13.4 MJ of ME per kg. Analysis of variance and Least Significant Difference of means indicated an isoleucine requirement of 7.2 g/kg. Non-linear regression of the same data indicated an isoleucine requirement of 8.44 g/kg, based on weight gain, or 8.19 g/kg based on food efficiency. 4. Reasons for the failure to find an imbalancing effect of branched chain amino acids in practical diets are discussed.

Authors+Show Affiliations

Barbour G
Department of Poultry Science, Ohio State University, Columbus 43210.
Latshaw JD
No affiliation info available

MeSH

Analysis of VarianceAnimal FeedAnimalsChickensEatingIsoleucineLeucineRandom AllocationRegression AnalysisValineWeight Gain

Pub Type(s)

Journal Article

Language

eng

PubMed ID

1643520

Citation

Barbour, G, and J D. Latshaw. "Isoleucine Requirement of Broiler Chicks as Affected By the Concentrations of Leucine and Valine in Practical Diets." British Poultry Science, vol. 33, no. 3, 1992, pp. 561-8.
Barbour G, Latshaw JD. Isoleucine requirement of broiler chicks as affected by the concentrations of leucine and valine in practical diets. Br Poult Sci. 1992;33(3):561-8.
Barbour, G., & Latshaw, J. D. (1992). Isoleucine requirement of broiler chicks as affected by the concentrations of leucine and valine in practical diets. British Poultry Science, 33(3), 561-8.
Barbour G, Latshaw JD. Isoleucine Requirement of Broiler Chicks as Affected By the Concentrations of Leucine and Valine in Practical Diets. Br Poult Sci. 1992;33(3):561-8. PubMed PMID: 1643520.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Isoleucine requirement of broiler chicks as affected by the concentrations of leucine and valine in practical diets. AU - Barbour,G, AU - Latshaw,J D, PY - 1992/7/1/pubmed PY - 1992/7/1/medline PY - 1992/7/1/entrez SP - 561 EP - 8 JF - British poultry science JO - Br Poult Sci VL - 33 IS - 3 N2 - 1. Chicks were fed on an isoleucine-deficient diet, with 6 added concentrations of isoleucine to determine their isoleucine requirement and an additional 6 treatments were devised to determine their isoleucine requirement when dietary leucine and valine contents were increased. 2. The diet deficient in isoleucine contained 5.6 g/kg isoleucine with leucine and valine contents of 20.1 and 10.3 g/kg, respectively. Supplementation with leucine and valine increased these to 24.7 and 12.6 g/kg, respectively. 3. The isoleucine requirement was not affected by dietary leucine and valine contents in a diet with 13.4 MJ of ME per kg. Analysis of variance and Least Significant Difference of means indicated an isoleucine requirement of 7.2 g/kg. Non-linear regression of the same data indicated an isoleucine requirement of 8.44 g/kg, based on weight gain, or 8.19 g/kg based on food efficiency. 4. Reasons for the failure to find an imbalancing effect of branched chain amino acids in practical diets are discussed. SN - 0007-1668 UR - https://www.unboundmedicine.com/medline/citation/1643520/Isoleucine_requirement_of_broiler_chicks_as_affected_by_the_concentrations_of_leucine_and_valine_in_practical_diets_ DB - PRIME DP - Unbound Medicine ER -