Influence of a preen gland secretion on growth and meat quality of heavy broilers

Animal

P. Chabrol¹  J.-F. Gabarrou²  A. Bollard³  L. Bougrat⁴  I. Madec⁴  P. Pageat⁴  D. Saffray⁴  C. Lecuelle-Lafont⁴  C. Falewee⁴ 

[1] Cabinet Clair Matin, 01000 Bourg en Bresse, France;EI Purpan75 voie du TOEC BP 5761, 31076 Toulouse Cedex 3, France;ENV Lyon, Marcy l’Etoile, 69000 Lyon, France;Pherosynthese, le Rieu Neuf, Saint Saturnin Apt. 84490, France;

关键词: broilers;    growth;    meat quality;    preen gland;   

DOI  :  

来源: DOAJ

【 摘 要 】

Preen gland secretions were obtained from several hens that were rearing their chicks and the content of these secretions was analysed. From these results, a synthetic analogue of the secretions was created (given the title Mother Hen Uropygial Secretion Analogue, or MHUSA, in this study). According to a blinded, controlled experimental design, heavy broilers (strain SASSO T56N) were reared from 1 day of age in an environment treated with either MHUSA or control. At 80 days the birds were slaughtered. Post mortemcarcass weight, abdominal fat and fillet weights were then measured. Colour, pH and yield were also measured as indicators of meat quality. Broilers exposed to MHUSA had both higher carcass weights and higher fillet weights compared with control-treated birds (P < 0.05). Abdominal fat, pH, water loss and colorimetry results were similar between the treatment groups at all time points (24 h and 6 days post mortem) and also after a cooking procedure. The meat from the MHUSA birds was less yellow compared with control. It is concluded that constant exposure to MHUSA from rearing until slaughter improves growth rate in broilers without significantly affecting meat quality.

【 授权许可】

Unknown