艾维茵肉种母鸡骨骼、肌肉、脂肪组织生长发育规律研究

Study on the Growth and Development Law of Skeleton,Muscle and Fat in Avian Female Broiler Breeder

研究艾维茵肉种母鸡骨骼、肌肉、脂肪等组织的生长发育规律。选用3周龄艾维茵父母代母鸡72只,按照品种手册进行常规饲养管理。分别于第5、79、、11、131、51、71、92、12、3、252、8周龄随机选取6只进行屠宰解剖,测定骨骼、肌肉、脂肪等多项指标。结果表明:骨骼、肌肉、脂肪等组织的生长发育均符合Logistic模型,拟合度在0.95以上;25周龄前骨骼、肌肉、脂肪的生长发育不平衡,首先发育的是骨骼,其次是肌肉,最后是脂肪,28周龄后各组织的发育基本趋于平衡。

The growth and development law of skeleton, muscle and fat in female Avian broiler breeder was studied. A total of 72 breeders（3 wks old） were reared from 5 to 28 wks of age.Pullets were slaughtered to measure skeleton,muscle and fat index at the 5^th,7^th,9^th,11^th,13^th,15^th, 17^th,19^th,21^st,23^rd,25^th and 28^th wk of age. The results were as follows：the growth and development law of skeleton, muscle and fat could be fitted very well to logistic model and R2 all exceed 0.95;and the growth and development Law of skeleton,muscle and fat in breeder was not balanced before the 25^th wk of age,＇Ihe sequence of their growth was skeleton,muscle and fat,After the 28^th wk of age the growth and development of tissues achieved a balance.