Beak condition and cage density determine abundance and spatial distribution of northern fowl mites, Ornithonyssus sylviarum, and chicken body lice, Menacanthus stramineus, on caged laying hens
| Autor: | Mullens, B.A., Chen, B.L., Owen, J.P. |
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| Zdroj: | In Poultry Science 1 December 2010 89(12):2565-2572 |
| Databáze: | ScienceDirect |
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