Effect of Prostaglandin F2α Administered before Estrus Synchronization with Norgestomet and Estradiol Valerate on Calving Rates of Beef Cows

D. J. Kesler; D. B. Faulkner; R. Machado; F. A. Ireland; K. E. Tjardes

doi:10.2527/1996.7492076x

Effect of Prostaglandin F_2α Administered before Estrus Synchronization with Norgestomet and Estradiol Valerate on Calving Rates of Beef Cows

D. J. Kesler, D. B. Faulkner, R. Machado, F. A. Ireland, K. E. Tjardes

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Three experiments were conducted to evaluate the effects of prostaglandin F_2α treatments 5, 9, and 14 d before Syncro-Mate B® on calving rates of 1,072 beef cows from inseminations at a pre-set time. The administration of prostaglandin F_2α 5 d before Syncro-Mate B decreased (P < .01) calving rates. This reduction was associated with lower (P < .05) calving rates in cows administered Syncro-Mate B in the first half of the estrous cycle. Calving rates were unaffected in cows administered prostaglandin F_2α 9 d before Syncro-Mate B. The administration of prostaglandin F_2α 14 d before Syncro-Mate B reduced (P < .05) calving rates in previously anestrous cows. In summary, prostaglandin F_2α should not be administered to postpartum cows 5 to 14 d before Syncro-Mate B synchronization.

Original language	English (US)
Pages (from-to)	2076-2080
Number of pages	5
Journal	Journal of animal science
Volume	74
Issue number	9
DOIs	https://doi.org/10.2527/1996.7492076x
State	Published - Sep 1996
Externally published	Yes

Keywords

Beef Cattle
Calving Rate
Estrus
Progesterone
Prostaglandins
Synchronization

ASJC Scopus subject areas

Food Science
Animal Science and Zoology
Genetics

Access to Document

10.2527/1996.7492076x

Cite this

@article{be4325dd615f4f39a3cf36cf0c60bad5,

title = "Effect of Prostaglandin F2α Administered before Estrus Synchronization with Norgestomet and Estradiol Valerate on Calving Rates of Beef Cows",

abstract = "Three experiments were conducted to evaluate the effects of prostaglandin F2α treatments 5, 9, and 14 d before Syncro-Mate B{\textregistered} on calving rates of 1,072 beef cows from inseminations at a pre-set time. The administration of prostaglandin F2α 5 d before Syncro-Mate B decreased (P < .01) calving rates. This reduction was associated with lower (P < .05) calving rates in cows administered Syncro-Mate B in the first half of the estrous cycle. Calving rates were unaffected in cows administered prostaglandin F2α 9 d before Syncro-Mate B. The administration of prostaglandin F2α 14 d before Syncro-Mate B reduced (P < .05) calving rates in previously anestrous cows. In summary, prostaglandin F2α should not be administered to postpartum cows 5 to 14 d before Syncro-Mate B synchronization.",

keywords = "Beef Cattle, Calving Rate, Estrus, Progesterone, Prostaglandins, Synchronization",

author = "Kesler, {D. J.} and Faulkner, {D. B.} and R. Machado and Ireland, {F. A.} and Tjardes, {K. E.}",

year = "1996",

month = sep,

doi = "10.2527/1996.7492076x",

language = "English (US)",

volume = "74",

pages = "2076--2080",

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publisher = "American Society of Animal Science",

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AU - Kesler, D. J.

AU - Faulkner, D. B.

AU - Machado, R.

AU - Ireland, F. A.

AU - Tjardes, K. E.

PY - 1996/9

Y1 - 1996/9

N2 - Three experiments were conducted to evaluate the effects of prostaglandin F2α treatments 5, 9, and 14 d before Syncro-Mate B® on calving rates of 1,072 beef cows from inseminations at a pre-set time. The administration of prostaglandin F2α 5 d before Syncro-Mate B decreased (P < .01) calving rates. This reduction was associated with lower (P < .05) calving rates in cows administered Syncro-Mate B in the first half of the estrous cycle. Calving rates were unaffected in cows administered prostaglandin F2α 9 d before Syncro-Mate B. The administration of prostaglandin F2α 14 d before Syncro-Mate B reduced (P < .05) calving rates in previously anestrous cows. In summary, prostaglandin F2α should not be administered to postpartum cows 5 to 14 d before Syncro-Mate B synchronization.

AB - Three experiments were conducted to evaluate the effects of prostaglandin F2α treatments 5, 9, and 14 d before Syncro-Mate B® on calving rates of 1,072 beef cows from inseminations at a pre-set time. The administration of prostaglandin F2α 5 d before Syncro-Mate B decreased (P < .01) calving rates. This reduction was associated with lower (P < .05) calving rates in cows administered Syncro-Mate B in the first half of the estrous cycle. Calving rates were unaffected in cows administered prostaglandin F2α 9 d before Syncro-Mate B. The administration of prostaglandin F2α 14 d before Syncro-Mate B reduced (P < .05) calving rates in previously anestrous cows. In summary, prostaglandin F2α should not be administered to postpartum cows 5 to 14 d before Syncro-Mate B synchronization.

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KW - Estrus

KW - Progesterone

KW - Prostaglandins

KW - Synchronization

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