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KMID : 0900919840080020079
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Korean journal of Animal Reproduction
1984 Volume.8 No. 2 p.79 ~ p.86
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Effect on Conception for Insemination Method of Frozen Semen in Cheju Native Cattle. 1. Effect of motility and fertility after thawing in frozen semen
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Abstract
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This cepseiment was carried out to cerify the effect of thawing methods and preservative temperature on the sperm motility and fertility after thawing semen with plastic straws in fresh and warm water. Sperm motility in vitro stored at room temperature after thawing were conducted by the various storage hours. A field trial after thawing semen with warmed water in straws from Cheju native cows involving 4 technicians and 800 cows first (or second) services gave the following results. The thawing methods of warmed water for one minute in semen motility were considerably higher than that in iced water during 12 hours after thawing semen, however, the sperm survival index of ice-water shwed a better results according as the time passed away, but not significant differences. Preservative temperaure at 5^{circ}C (iced water) after thawing gave significantly better results than that of thawed at 30^{circ}C (warmed water). The N R rate to 175 inseminations with semen thawed at 15-20^{circ}C (fresh water) was 82.8%, 80.9% for 610 inseminations thawed in warm water. Conception rate ofthe semen thawed in warm water for 10-60 secs gave no significant difference among storage hours, because the semen used to be inseminated within one hour almost, but in decreased when semen thawed at the period of one minute over.
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KEYWORD
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