Effect of beak trimming on stress responses of layer
碩士 === 中國文化大學 === 生物科技研究所 === 97 === The purpose of this research was to study the effect of beak trimming on stress responses of layer hens. 45 one-day old chicks were randomly grouped into control, beak trimming and retrimming groups with 15 chicks each. Blood were collected via wing vein at the...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
2008
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| Online Access: | http://ndltd.ncl.edu.tw/handle/61975950861469472078 |