Tanaka T, Hurnik J F
Department of Animal and Poultry Science, University of Guelph, Ontario, Canada.
Poult Sci. 1992 Feb;71(2):235-43. doi: 10.3382/ps.0710235.
Experiments were carried out to study the behavior and production performance of hens housed in battery cages (3 birds x 112 cages) and an aviary (437 birds). Direct visual observations and videotapings of hen behavior were collected at 24 to 25, 36 to 37, 49 to 50, and 61 to 62 wk of age. Production data were collected daily. Stereotyped behaviors were much more frequent (P less than .01) in the battery cages (7.0 to 24.7%) than in the aviary (1.0 to 2.7%). Comfort behaviors were performed by aviary birds (3.9 to 5.5%) much more frequently (P less than .01) than by the caged birds (.7 to .9%). The birds were more active during a few hours before dark and just after light in both cages and the aviary. In both groups, the production performance of hens was similar and relatively high. The results of the current study indicate that aviaries provide a more comfortable environment for birds and almost the same productivity per bird as battery cages.
开展了实验，以研究饲养在层架式鸡笼（3只鸡×112个鸡笼）和开放式鸡舍（437只鸡）中的母鸡的行为和生产性能。在24至25周龄、36至37周龄、49至50周龄以及61至62周龄时，收集了母鸡行为的直接视觉观察结果和录像资料。每天收集生产数据。层架式鸡笼中刻板行为的发生频率（7.0%至24.7%）比开放式鸡舍（1.0%至2.7%）高得多（P<0.01）。开放式鸡舍中的鸡（3.9%至5.5%）进行舒适行为的频率比笼养鸡（0.7%至0.9%）高得多（P<0.01）。在鸡笼和开放式鸡舍中，鸡在天黑前几个小时和天亮后刚过的时候更为活跃。两组中，母鸡的生产性能相似且相对较高。当前研究结果表明，开放式鸡舍为鸡提供了更舒适的环境，且每只鸡的生产力与层架式鸡笼几乎相同。
