Madec I, Pageat P, Bougrat L, Lecuelle-Lafont C, Saffray D, Falewee C, Bollard A, Chabrol P, Gabarrou J-F
1Pherosynthese, le Rieu Neuf, Saint Saturnin Apt. 84490, France.
Animal. 2008 Apr;2(4):631-5. doi: 10.1017/S1751731107001504.
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.
从几只正在育雏的母鸡身上获取了尾脂腺分泌物，并对这些分泌物的成分进行了分析。根据这些结果，制备了一种分泌物的合成类似物（在本研究中命名为母鸡尾脂腺分泌物类似物，简称MHUSA）。按照双盲对照实验设计，从1日龄起，将重型肉鸡（SASSO T56N品系）饲养在经MHUSA处理或对照处理的环境中。80日龄时宰杀这些鸡。然后测量宰后胴体重量、腹部脂肪和胸肉重量。还测量了颜色、pH值和产率作为肉质指标。与对照处理的鸡相比，接触MHUSA的肉鸡胴体重量和胸肉重量均更高（P<0.05）。在所有时间点（宰后24小时和6天）以及烹饪后，各处理组之间的腹部脂肪、pH值、失水率和比色法结果均相似。与对照相比，MHUSA处理的鸡的肉颜色更浅。得出的结论是，从饲养到屠宰持续接触MHUSA可提高肉鸡的生长速度，且对肉质无显著影响。
