Observaciones sobre fertilidad comparada y efecto de la inseminación artificial sobre la Trichomoniasis en vacunos lecheros
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Instituto Interamericano de Ciencias Agrícolas (IICA)
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Comparisons are made on fertility of dairy cattle before and after the introduction in 1957 of artificial insemination Fertility was good in Criollo cattle under natural conditions, until there was a drop due to the presence of Trichomonas foetus infection. The total elimina-tion of natural service and the introduction of young. disease-free bulls, has been found to be an effective weapon against Trichomonas in tropical conditions Jersey and Criollo herds recuperated faster than those with Shindi Zebu blood.
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Ganado bovino||cattle||gado vacum||bovin, Fertilidad||fertility||fertilidade||fertilité, Inseminación artificial||artificial insemination||inseminação artificial||insémination artificielle, Ganado de leche||dairy cattle||gado leiteiro||bovin laitier, Sede Central