Effects of presynchronization and length of proestrus on fertility of grazing dairy cows subjected to a 5-day timed artificial insemination protocol

Ribeiro, E.S. ; Monteiro, A.P.A. ; Lima, F.S. ; Ayres, H. ; Bisinotto, R.S. ; Favoreto, M. ; Greco, L.F. ; Marsola, R.S. ; Thatcher, W.W. ; Santos, J.E.P.

Journal of dairy science, 2012-05, Vol.95 (5), p.2513-2522 [Periódico revisado por pares]

New York, NY: Elsevier Inc

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