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This study was carried out to investigate artificial insemination (AI) failure status and frozen semen characteristics in Korean proven bulls‘ number (KPN) semen used for AI of Hanwoo cows in Gangwon East region (Gangneung,Donghae, Taebaek, Samcheok, Sokcho, Yangyang, Goseong). Among semen used for AI, AI failure rate showed lowest at KPN506 (27.6%), whereas highest at KPN593 (77.2%). Correlations of AI failure in between Korean proven bulls semen and cows was 0.2941, which means that AI failure rate of Korean proven bulls semen may have respectable effect on reproduction of Hanwoo cow. In addition, present study was conducted to investigate spermatozoal viability rate, ruptured acrosome rate and active mitochondria in frozen Korean proven bulls semen with flow cytometry. The semen of KPN593 showed significantly (p<0.05) higher viability rate in KPN593 (30.49%) than that in KPN637 (37.34%).
Furthermore, percentage of ruptured acrosome was lower in KPN637 as 21.37% than in KPN637 (21.37%), but it was not statistically significant. In conclusion, these results indicate that choice of Korean proven bulls semen may correlate positively with conception rate in Hanwoo cow. Therefore, KPN with high AI failure rate might be avoid to increase conception rate and characteristics of frozen semen might be evaluated before its use for AI.| 번호 | 참고문헌 | 국회도서관 소장유무 |
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| 1 | Variances of and Correlations Among Progeny Tests for Reproductive Traits of Cows Sired by AI Bulls ![]() |
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| 2 | Curry MR (2002): Cryopreservation of semen from domestic livestock. Rev Reprod 5:46-52. | 미소장 |
| 3 | Hammerstedt RH, Graham JK, Nolan JP (1990): Cryopreservation of mammalian sperm: What we ask them to survive. J Androl 11:73-88. | 미소장 |
| 4 | Current status of sperm cryopreservation: why isn't it better? ![]() |
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| 5 | HERITABILITY OF NONRETURN RATE OF CANADIAN HOLSTEIN-FRIESIAN BULLS ![]() |
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| 6 | Genetic Parameters for Fertility of Dairy Bulls ![]() |
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| 7 | Stälhammer EM, Janson L, Philipsson J (1994): Genetic studies on fertility in A.I. bulls. Ⅱ. Environmental and genetic effects on non-return rate of young bulls. Anim Reprod Sci 34:193-207. | 미소장 |
| 8 | Thaller G (1997): Genetics and breeding for fertility. Interbull Mtg Grub Uppsala Interbull Bull No 18. | 미소장 |
| 9 | Relationship between the proportion of capacitated spermatozoa present in frozen–thawed bull semen and fertility with artificial insemination ![]() |
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| 10 | Prospects for improving reproductive performance through genetic selection ![]() |
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| 11 | Relationship Between Scrotal Circumference and Semen Production and Reproductive Performance in Hanwoo Bulls | 소장 |
| 12 | Analysis of Reproduction and Breeding Status in Gangwon East Area | 소장 |
| 13 | 이성수, 노승희, 박노형, 원유석 (2010a): 한우 씨수소의고환 둘레와 정액 성상 및 농가 인공수정 수태율과의관계. J Emb Trans 25(1):51-55. | 미소장 |
| 14 | 이성수, 노승희, 박노형, 원유석 (2010b): 한우 씨수소의상대적 수정능 추정에 관한 연구. J Emb Trans. 25(1):57-66. | 미소장 |
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