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F. HARTWIG P. ; F. LISBOA P. ; L. Antunez ; R. Dos Santos ; L.M. Machado Pfeifer ; C.E.W. Nogueira ; B. Da Rosa CurcioThe practice of covering in herds is often used in Crioulo breeding farms, thus not allowing the determination of ovulation dates and the early detection of pregnancies. This fact complicates the estimation of gestational age after 70 days of co[...]
