CITA ORIGINAL: Boivin X, ois Gilard F, Egal D. (2009). The effect of early human contact and the separation method from the dam on responses of beef calves to humans….
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CITA ORIGINAL: GOW SP y WALDNER CL. Antimicrobial drug use and reason for treatment in 203 western Canadian cow–calf herds during calving season (2009) Preventive Veterinary Medicine 90: 56–65 …
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