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核心技术专利：CN118964589B侵权必究

核心技术专利：CN118964589B侵权必究

Hemsworth P H, Barnett J L

Animal Research Institute, Department of Agriculture and Rural Affairs, Werribee, Victoria, Australia.

Br Poult Sci. 1989 Sep;30(3):505-18. doi: 10.1080/00071668908417175.

The productivity and behavioural responses of laying hens to humans were examined in relation to the effects of tier, row and position of the cage along the row over three consecutive 4-week periods. 2. Birds from the top tier had lower hen-day production, lower egg mass output and poorer efficiency of food utilisation than birds from the bottom tier in the third period. 3. Birds from the top tier showed greater avoidance of an approaching experimenter when in their cage or when on a table. 4. The production variables were significantly correlated with a number of behavioural responses to humans and a novel object, and with the corticosteroid response to handling/blood sampling. 5. The data suggest that birds from the top tier were more fearful of humans and that this higher level of fear may have been responsible for their lower productivity.

在连续三个为期4周的时间段内，研究了蛋鸡对人类的生产性能和行为反应，并分析了鸡笼的层数、排数以及沿排的位置所产生的影响。2. 在第三个时间段，顶层的鸡与底层的鸡相比，日产蛋量更低，产蛋总量更少，食物利用效率也更低。3. 当在笼中或在桌子上时，顶层的鸡对靠近的实验者表现出更大的回避行为。4. 生产变量与对人类和新物体的一些行为反应以及对处理/采血的皮质类固醇反应显著相关。5. 数据表明，顶层的鸡对人类更为恐惧，而这种更高程度的恐惧可能是其生产力较低的原因。

Hemsworth P H, Barnett J L

Animal Research Institute, Department of Agriculture and Rural Affairs, Werribee, Victoria, Australia.

Br Poult Sci. 1989 Sep;30(3):505-18. doi: 10.1080/00071668908417175.

The productivity and behavioural responses of laying hens to humans were examined in relation to the effects of tier, row and position of the cage along the row over three consecutive 4-week periods. 2. Birds from the top tier had lower hen-day production, lower egg mass output and poorer efficiency of food utilisation than birds from the bottom tier in the third period. 3. Birds from the top tier showed greater avoidance of an approaching experimenter when in their cage or when on a table. 4. The production variables were significantly correlated with a number of behavioural responses to humans and a novel object, and with the corticosteroid response to handling/blood sampling. 5. The data suggest that birds from the top tier were more fearful of humans and that this higher level of fear may have been responsible for their lower productivity.

在连续三个为期4周的时间段内，研究了蛋鸡对人类的生产性能和行为反应，并分析了鸡笼的层数、排数以及沿排的位置所产生的影响。2. 在第三个时间段，顶层的鸡与底层的鸡相比，日产蛋量更低，产蛋总量更少，食物利用效率也更低。3. 当在笼中或在桌子上时，顶层的鸡对靠近的实验者表现出更大的回避行为。4. 生产变量与对人类和新物体的一些行为反应以及对处理/采血的皮质类固醇反应显著相关。5. 数据表明，顶层的鸡对人类更为恐惧，而这种更高程度的恐惧可能是其生产力较低的原因。