Daly K R, Peterson R A
Division of Animal and Veterinary Sciences, West Virginia University Morgantown 26506-6108.
Poult Sci. 1990 Aug;69(8):1394-8. doi: 10.3382/ps.0691394.
The fat content and the concentrations of glucose and triglyceride in day-old chicks hatched from 27 and 60 wk-old broiler-breeder hens were determined from pooled samples of residual yolk and blood serum, respectively. Serum glucose and triglyceride levels were unaffected (P greater than .05) by breeder age, although there was a linear (P less than .001; r = .67) relationship between these characteristics and chick weight. Yolk fat, adjusted for chick weight, was on the average 13% greater (P less than .05) in chicks from old breeders than chicks from young breeder hens. Yolk wet weight was not affected (P greater than .05) by breeder age. Results indicate that breeder age may affect chick performance through alterations in the fat content of residual yolk.
分别从27周龄和60周龄肉种鸡所产一日龄雏鸡的残留蛋黄和血清混合样本中，测定其脂肪含量、葡萄糖浓度和甘油三酯浓度。种鸡年龄对血清葡萄糖和甘油三酯水平没有影响（P>0.05），尽管这些特征与雏鸡体重之间存在线性关系（P<0.001；r=0.67）。调整雏鸡体重后，老龄种鸡所产雏鸡的蛋黄脂肪平均比幼龄种鸡所产雏鸡高13%（P<0.05）。种鸡年龄对蛋黄湿重没有影响（P>0.05）。结果表明，种鸡年龄可能通过改变残留蛋黄的脂肪含量来影响雏鸡性能。
