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Studies on the protein and sulfur amino acid requirements of young bobwhite quail

Poultry Science

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Abstract

Four experiments were conducted with purified diets to examine the influence of protein level and to estimate the sulfur amino acid (S.A.A.) requirement of young Bobwhite quail (Colinus virginianus). These studies demonstrated (I) that 26% protein was sufficient for rapid growth when the diet was supplemented with methionine; (2) that diets containing higher levels of protein (29.3% and 31.3%) failed to support satisfactory growth unless they contained supplemental methionine; and (3) that young Bobwhite quail require no more than 1.0% sulfur-containing amino acids for optimal growth and efficiency of feed utilization. A fifth experiment was conducted to examine the protein and S.A.A. requirements of young Bobwhite quail using practical rations and to compare results with those obtained with purified diets. Diets containing 24%, 26% and 28% protein were supplied with and without supplemental methionine in a five week study. Results showed significant growth responses to protein and supplemental methionine. Responses showed that Bobwhite quail require no more than 26% protein for maximum growth and efficiency of feed utilization when the S.A.A. level of the diet was approximately 1.0%. The results were in close agreement with those obtained with purified diets. These findings define more precisely than had been known the quantitative requirements of young Bobwhite quail for protein and for the S.A.A. necessary for optimal growth.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Studies on the protein and sulfur amino acid requirements of young bobwhite quail
Series title:
Poultry Science
Volume
56
Issue:
2
Year Published:
1977
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
577-585
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Poultry Science
First page:
577
Last page:
585