Effect of high-level zinc ration on laying performance of laying ducks and zine content of duck egg and duck egg quality
Laying performance of laying duck and duck egg quality were not affected by supplementation of zinc in feed at 1 000 mg/kg, but laying performance markedly affected at the supplemented levels above 2 000 mg/kg, produced thin-shelled eggs with decreased egg weight and increased yolk-to-white ratio. A...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Zhejiang University Press
2000-03-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
| Subjects: | |
| Online Access: | https://www.academax.com/doi/10.3785/1008-9209.2000.02.0173 |
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