FLOOR-REARING AND CAGE-REARING EFFECTS ON PULLETS INITIAL ADAPTATION TO MULTIPLE-HEN CAGES
FLOOR-REARING AND CAGE-REARING EFFECTS ON PULLETS INITIAL ADAPTATION TO MULTIPLE-HEN CAGES
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DOI：
10.1016/0168-1591(88)90056-1
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发表时间：
1988-08-01
影响因子：
2.3
通讯作者：
MILLIKEN, GA
中科院分区：
文献类型：
--
作者：
CRAIG, JV;OKPOKHO, NA;MILLIKEN, GA
在青春期后期，将白色来航鸡置于多母鸡笼中饲养后的最初2或3周内，比较了在地板围栏和高密度笼中饲养的来航鸡的行为特征和体重变化。在试验2的第1天和第7天或第8天，从饲养在6，8-鸟笼中的48只母鸡获得有关行为的信息。在实验1中，在第1天，地面饲养的母鸡比笼养的母鸡表现出显著更多的蹲伏，更少的运动和更低的饲料消耗。到第4天，地板饲养的雏鸡仍然消耗显着较少的饲料，但到第15天，没有发现蹲下，运动或饲料吃的差异。笼养雏鸡在第1天的啄羽次数比地面饲养的多，但在第15天的啄羽次数比地面饲养的少。来自两种饲养环境的雏鸡在圈养后日增重方面没有差异。在实验2中，地板饲养的母鸡有显着较少的喂养回合在第1天，但他们没有不同的笼饲养的母鸡在第7天或第8天。虽然从地面围栏母鸡喂养的频率显着降低，他们有较长的持续时间的喂养回合，使总时间喂养没有不同的笼饲养的母鸡。从第1天到第7天或第8天，昼夜摄食模式发生了显著变化。个体母鸡的饲养行为和舍内体重之间的相关性没有显著差异。个体在第7天或第8天的进食持续时间与圈养后前21天的体重增加中度且显著相关。两种饲养处理的雏鸡体重增加没有差异。大多数攻击行为发生在笼子的前面，靠近饲料槽;很少看到直接在饲料。激动剂活性和已知的优势关系的百分比之间地板饲养比笼饲养的母鸡转移到产蛋鸡笼。从第1天到第7天或第8天，两种饲养环境中的雏鸡的攻击行为频率都有所下降。
White Leghorn pullets reared in floor pens and high-density cages were compared for behavioral traits and changes in body weights during the initial 2 or 3 weeks after being placed in multiple-hen cages during late adolescence. Information on behavior was obtained from 48 pullets kept in 6,8-bird cages during Days 1 and 7 or 8 in Experiment 2. In Experiment 1, floor-reared pullets showed significantly more crouching, less movement and lower feed consumption than cage-reared pullets during Day 1. By Day 4, floor-reared pullets still consumed significantly less feed, but by Day 15, no differences were found for crouching, movement or feed eaten. Cage-reared pullets had more feather-pecking on Day 1 but less on Day 15 than floor-reared ones. Pullets from the two rearing environments did not differ in post-housing daily gain in body weight. In Experiment 2, floor-reared pullets had significantly fewer feeding bouts during Day 1, but they did not differ from cage-reared pullets during Days 7 or 8. Although pullets from floor-pens fed significantly less frequently, they had longer durations of feeding bouts, so that total time feeding did not differ from that of cage-reared pullets. Diurnal feeding patterns changed significantly from Day 1 to Day 7 or 8. Correlations between measures of individual pullet''s feeding behavior and body weight at housing did not differ significantly from zero. Duration of individuals'' feeding bouts on Day 7 or 8 was moderately and significantly correlated with their body-weight gain for the first 21 days after housing. Gains in body weight did not differ for pullets from the two rearing treatments. Most aggressive acts occurred just inside the front of the cages, adjacent to the feed trough; few were seen directly over the feed. Agonistic activity and percentage of dominance relationships known were greater among floor-reared than among cage-reared pullets after transfer to laying-house cages. Decreases in frequency of aggressive acts occurred from Day 1 to day 7 or 8 for pullets from both rearing environments.