Timed artificial insemination plus heat I: effect of estrus expression scores on pregnancy of cows subjected to progesterone-estradiol-based protocols.
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U. Abreu | P. Sutovsky | M. R. Silva | É. Nogueira | J. C. Silva | C. J. T. Cardoso | W. B. Rodrigues | N. A. Anache | K. C. Silva