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PSIX-41 Effect of progressive increase the hours of daily light exposure during winter months in Holstein bulls fed high-concentrate diets.
One hundred and ten Holstein male calves (335 ± 4.3 kg and 243 ± 0.96 d of age) were enrolled in a randomize design to study the effect of increasing the hours of daily light exposure on performance, eating, and sexual and agonistic behavior. Calves were allocated in 6 pens with 1 computerized conce...
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| 發表在: | J Anim Sci |
|---|---|
| Main Authors: | , , , , , , |
| 格式: | Artigo |
| 語言: | Inglês |
| 出版: |
Oxford University Press
2018
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| 主題: | |
| 在線閱讀: | https://ncbi.nlm.nih.gov/pmc/articles/PMC6285637/ https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1093/jas/sky404.036 |
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