Bone breakage in three strains of end-of-lay hens

被引:37
作者
Budgell, KL
Silversides, FG
机构
[1] Nova Scotia Agr Coll, Dept Plant & Anim Sci, Truro, NS B2N 5E3, Canada
[2] Crops & Livestock Res Ctr, Charlottetown, PE C1A 4N6, Canada
关键词
layers; strain; bone breakage;
D O I
10.4141/A04-040
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
Spent hens of two commercial lines and one heritage line of layers were slaughtered at 72 wk of age and dissected to determine the number of bone fractures before shipping, during depopulation and shipping, and during slaughter. The ISA-Brown and Babcock B300 hens had higher incidences of old (11.1 and 11.7%) and shipping breaks (7.9 and 10.0%) than a line of Brown Leghorns (0.0 and 3.5%, respectively), suggesting that selection of commercial layers for increased egg production may have affected bone strength. All hens experienced broken bones during processing.
引用
收藏
页码:745 / 747
页数:3
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