Pre-synchronization of ovulation timing and delayed fixed-time artificial insemination increases pregnancy rates when sex-sorted semen is used for insemination of heifers

•Delaying TAI from 54 to 72 h did not increase PR/AI with sex-sorted semen.•Presynchronization combined with delayed TAI increased PR/AI with sex-sorted semen.•PR/AI in the PRE72-SEX treatment did not differ from the CTRL54-CNV treatment. This study was conducted to determine effects of pre-synchron...

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Veröffentlicht in:	Animal reproduction science 2021-03, Vol.226, p.106699-106699, Article 106699
Hauptverfasser:	Oosthuizen, N., Fontes, P.L.P., Oliveira Filho, R.V., Dahlen, C.R., Grieger, D.M., Hall, J.B., Lake, S.L., Looney, C.R., Mercadante, V.R.G., Neville, B.W., Perry, G.A., Powell, J.G., Prezotto, L.D., Seidel, G.E., Walker, R.S., Cardoso, R.C., Pohler, K.G., Lamb, G.C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Beef heifers Delayed fixed-time artificial insemination Pre-synchronization Sexed semen
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