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Title: Efficiency of protein utilization in male and female broiler chickens
Contributor(s): Li, Li  (author); Nolan, John Vivian  (author)orcid 
Publication Date: 2002
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Abstract: The efficiency of dietary protein utilisation in broiler chickens was studied by conventional balance techniques and by digestion and metabolism of ¹⁵N-labelled protein in the diet. Between 16 and 30 days of age, male chickens tended to be heavier and to ingest more feed than female chickens: however, female chickens tended to absorb and utilize dietary protein more efficiently than male chickens. Whole-body synthesis rate did not differ between sexes and was 6.7-7.5 times the protein absorption rate. Only about 10% of the protein synthesized was deposited in tissue gain whereas 90% was degraded. Fractional protein synthesis rates were determined from the decline in enrichment in small intestinal, liver and breast muscle samples taken sequentially from birds that had earlier ingested ¹⁵N-labelled feed. FSRs declined with age but did not differ between sexes and were 44-52, 23-29 and 15-18 %/d, respectively.
Publication Type: Conference Publication
Conference Name: Australian Poultry Science Symposium, Sydney, NSW, Australia, 11 - 13 February, 2002
Conference Details: Australian Poultry Science Symposium, Sydney, NSW, Australia, 11 - 13 February, 2002
Source of Publication: Proceedings of Australian Poultry Science Symposium, v.14, p. 175-178
Publisher: Australian Poultry Science Symposium & Poultry Research Foundation & World's Poultry Science Association, Australian Branch
Place of Publication: Sydney, NSW, Australia
ISSN: 1034-6260
Field of Research (FOR): 070204 Animal Nutrition
Socio-Economic Outcome Codes: 830309 Poultry
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
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School of Environmental and Rural Science

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