Studies on carbon-13 turnover in eggs and blood of commercial layers

Revista Brasileira de Ciência Avícola

Jc Denadai²  C Ducatti¹  Ac Pezzato²  As Carrijo¹  Fr Caldara²  Rp Oliveira² 

[1] ,São Paulo State University Veterinary Medicine and Animal Science School

关键词: Albumen;    carbon-13;    yolk;    blood;    egg;    comercial laying hens;   

DOI  :  10.1590/S1516-635X2006000400008

来源: SciELO

【 摘 要 】

This paper aimed at evaluating the influence of diets containing different isotopic values of carbon-13 turnover on the half-life of egg (yolk + albumen), yolk and albumen individually, and blood of poultry using delta‰13C isotopic variation. Commercial layers fed four experimental isocaloric and isonitrogenous diets (RC4, RC3, RMC4 and RMC3) containing different isotopic values, during an experimental period of 56 days. Turnover of the studied tissues was influenced by the experimental diets. Blood and albumen were more influenced by dietary treatments as compared to egg and yolk. The RMC3 diet induced better performance (better feed intake and higher egg production) due faster rate of carbon substitution than the RC4 diet, and lower half-life for egg (yolk + albumen), yolk, and albumen.

【 授权许可】

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