The effect of co-treatment with recombinant bovine somatotrophin on plasma progesterone concentration and number of embryos collected from superovulated Holstein heifers.

The effect of co-treatment with recombinant bovine somatotrophin on plasma progesterone concentration and number of embryos collected from superovulated Holstein heifers. Research Abstract Details 

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The effect of co-treatment with recombinant bovine somatotrophin on plasma progesterone concentration and number of embryos collected from superovulated Holstein heifers. Abstract Text:

D Rieger,J S Walton,M L Goodwin,W H Johnson,

Mature Holstein heifers were induced to superovulate with twice-daily injections of porcine follicle-stimulating hormone (FSH), and were given either 20 mg i.m. of recombinant bovine somatotrophin (rBST) or saline with each FSH injection. The animals were artificially inseminated and the embryos were collected nonsurgically at Day 7. There was no significant difference in the mean (+/-S.D) total number of embryos collected from rBST-treated animals (8.3+/-5.3) when compared with that of the controls (7.2+/-6.6), or in the mean number of transferable embryos (5.3+/-4.0 vs 5.2+/-4.5). However, co-treatment with rBST tended to increase the ovulatory response, and it significantly increased plasma progesterone concentrations at Day 6 (P = 0.04). Based on these latter observations, we conclude that treatment with rBST enhanced the superovulatory response in heifers.

The effect of co-treatment with recombinant bovine somatotrophin on plasma progesterone concentration and number of embryos collected from superovulated Holstein heifers. Publishing Authors By Initials

D Rieger,JS Walton,ML Goodwin,WH Johnson,

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The effect of co-treatment with recombinant bovine somatotrophin on plasma progesterone concentration and number of embryos collected from superovulated Holstein heifers. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Theriogenology

VOLUME: 35

Page Numbers: 863-8

Journal Abbreviation: Theriogenology

ISSN: 0093-691X

DAY: 26

MONTH: May

YEAR: 1991

The effect of co-treatment with recombinant bovine somatotrophin on plasma progesterone concentration and number of embryos collected from superovulated Holstein heifers. Information

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LANGUAGE: eng

NlmUniqueID: 421510

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AFFILIATION: Department of Biomedical Sciences University of Guelph, Guelph, Ont., Canada, N1G 2W1.

Country: United States

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MEDLINETA: Theriogenology

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