摘要
Histology of the testes of breeder cocks fed replacement levels of 0, 25, 50, 75, or 100% of cottonseed meal (CSM) for soybean meal (SBM) in five different breeder diets for fifteen weeks were investigated in a completely randomized design. Chemical analyses were carried out to determine the crude protein (CP) and gossypol content of CSM. The 23 week-old breeder cocks were fed the experimental diets for 15 weeks, euthanized and their testes removed for histological studies. The determined CP and gossypol contents of CSM were 35.11% and 570 g/ton respectively. The daily sperm production (DSP) by the breeder cocks was depressed when CSM dietary inclusion was above 50% with DSP values ranging from 1.509 to 2.909/mL. The investigation showed that replacing 75% SBM with CSM was not injurious to the non-reproductive health of the breeder cocks. However, CSM may not replace more than 50% of SBM for breeder cocks because of the depressing effect of gossypol on sperm production when this level is exceeded.
摘要译文
饲养员公鸡的睾丸组织学饲喂0更替水平，25，50，75，或棉籽粕（CSM）豆粕（SBM）在五个不同的种鸡日粮15周100％进行了调查在完全随机化的设计。化学分析，进行了以确定粗蛋白（CP）和CSM棉酚含量。 23周龄种鸡公鸡饲喂试验日粮15周，安乐死和他们的睾丸取出的组织学研究。 CSM的确定CP和棉酚含量分别为35.11％和570克/吨。每日精子生成（DSP）由饲养员公鸡郁闷的时候CSM饮食包含了50％以上，与DSP值从1.50 SUP 9 / SUP 2.90 SUP 9 / SUP /毫升。调查显示，与CSM替代75％SBM不损害饲养员公鸡的非生殖健康。然而，CSM可能不适合饲养员公鸡，因为棉酚对精子产生的抑制效果替代豆粕的50％以上时，这一水平被超过。
G.O. Adeyemo ; O.G. Longe ;D.O. Adejumo. The Reproductive Performance of Breeder Cocks Fed Cottonseed Cake-based Diets[J]. International Journal of Poultry Science, 2007,6(2): 140-144