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Over a period of 4 years, 480 Nelore cows in Brazil with a calf at foot were treated with an insecticide during the breeding season (November-February) to combat tick infestation, or received no treatment. Treatment had no significant effect on CR or on daily gain of cows or calves, but bulls...

Bianchin, I.; Oliveira Alves, R. G. de
Centro Nacional de Pesquisa de Gado de Corte (CNPGC) (EMBRAPA), Campo Grande, Brazil
Comunicado Tecnico - Centro Nacional de Pesquisa de Gado de Corte, 1997, No. 55, pp 8 pp.