Incidencia y prevalencia de neumonias en becerras Holstein Friesian en etapas de lactancia y destete, durante un ano en un centro de recria
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| Format: | Tesis de licenciatura |
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MX
1977
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| Online Access: | https://hdl.handle.net/20.500.14330/TES01000157704 http://132.248.9.195/pmig2020/0157704/Index.html |