Alternative Systems for Poultry Health, Welfare and Productivity: Poultry Science Symposium Series (Volume Thirty)
By the late 1960s, poultry production had developed from a small-scale rural enterprise to an economically important branch of agriculture. Flock sizes increased and production systems, for hygienic and economic reasons, became more intensive. Rearing and housing of laying hens took place in conv...
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| 格式: | 图书 |
| 语言: | English |
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CABI
2014
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| 在线阅读: | https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/37105 |
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