Fertility of frozen-thawed porcine semen following controlled-rate freezing in straws.

Fertility of frozen-thawed porcine semen following controlled-rate freezing in straws. Research Abstract Details 

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Fertility of frozen-thawed porcine semen following controlled-rate freezing in straws. Abstract Text:

D G Hammitt,P A Martin,

A method was developed for freezing large batches of porcine semen in straws at a controlled rate in a liquid nitrogen programmable freezer. The fertilizing potential of spermatozoa frozen by this method was examined by inseminating 220 sows with a mixture of semen from two boars. Estrus was synchronized using one of two regimens and sows were inseminated once at 34 h after human chorionic gonadotropin (hCG) treatment. The average pregnancy rate at 60 d of gestation, farrowing rate and litter size were 60.9%, 51.4% and 8.8, respectively. The fertilizing potential of spermatozoa frozen by this method appeared to be similar to that reported for other methods of freezing porcine semen.

Fertility of frozen-thawed porcine semen following controlled-rate freezing in straws. Publishing Authors By Initials

DG Hammitt,PA Martin,

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Fertility of frozen-thawed porcine semen following controlled-rate freezing in straws. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Theriogenology

VOLUME: 32

Page Numbers: 359-68

Journal Abbreviation: Theriogenology

ISSN: 0093-691X

DAY: 26

MONTH: Sep

YEAR: 1989

Fertility of frozen-thawed porcine semen following controlled-rate freezing in straws. Information

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LANGUAGE: eng

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AFFILIATION: Department of Veterinary Physiology, Iowa State University, Ames, IA 50011 USA.

Country: United States

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MEDLINETA: Theriogenology

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