Effects of bacitracin and chlortetracycline on laying performance and egg quality and approach to its mechanism in aging hens
In this research, 576 ROM laying hens of 300 days of age were randomly divided into three groups, each included four replicates of 48 layers. The layers were given a basal corn-soybean meal diet alone or supplemented 50 mg/kg bacitracin or 100 mg/kg chlortetracycline for a period of 90 days. Results...
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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/10.3785/1008-9209.2000.02.0169 |
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