Fertility of Holstein cows and heifers submitted to timed artificial insemination and receiving one or two doses (12 h apart) of semen

The objective of this retrospective study was to assess the effect of receiving a single (n = 50,285) or double (n = 4392) artificial insemination (AI), 12 h apart, within a timed artificial insemination protocol on pregnancy per AI (P/AI) in nulliparous heifers (inseminated with either sex‐sorted o...

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Veröffentlicht in:	Reproduction in domestic animals 2023-01, Vol.58 (1), p.39-47
Hauptverfasser:	Mellado, Miguel, Treviño, Lucía M., Chavez, María I., Véliz, Francisco G., Macías‐Cruz, Ulises, Avendaño‐Reyes, Leonel, García, José E.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals Artificial insemination Body Fluids Cattle Dinoprost Estrus Synchronization Female Fertility Gonadotropin-Releasing Hormone Heat Heat stress Heat tolerance Insemination, Artificial - veterinary Lactation Ovsynch Pregnancy Progesterone Reproduction (biology) Retrospective Studies Semen Temperature effects
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