EFFECTS OF MALE PRESENCE ON AGONISTIC BEHAVIOR AND PRODUCTIVITY OF WHITE LEGHORN HENS

被引:13
作者
BHAGWAT, AL [1 ]
CRAIG, JV [1 ]
机构
[1] KANSAS STATE UNIV AGR & APPL SCI,DEPT ANIM SCI & IND,MANHATTAN,KS 66506
来源
APPLIED ANIMAL ETHOLOGY | 1979年 / 5卷 / 03期
关键词
D O I
10.1016/0304-3762(79)90061-0
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
We studied the ways in which the presence of a male affects hens' agonistic activity, egg production and body weight. Three experiments were designed involving 18, 16 and 48 flocks with 9-16 females and 0-4 males per flock. Effects of genetic stocks, time elapsed after flock assembly, developmental age, and laying-house environment (cage as opposed to floor) were also examined using factorial experimental designs. Females emitted fewer peck-avoidances and threat-avoidances when one or more males were present; the frequencies decreased with additional males. Pullets in crowded colony cages displayed fewer threats than those in floor-pen flocks, and adolescent pullets displayed more of both kinds of agonistic acts than sexually mature females. Body weight gains and egg weights appeared to be reduced when a male was present within the flock for 30 weeks. © 1979.
引用
收藏
页码:267 / 282
页数:16
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