Browse > Article

Utilization of Ovulation-Synchronization Method in Dairy Cows  

Hwang, Seok-Joo (Department of Animal Biotechnology, Kangwon National University)
Park, Soo-Bong (National Livestock Research Institute, RDA)
Park, Seung-Jae (National Livestock Research Institute, RDA)
Park, Choon-Keun (Department of Animal Biotechnology, Kangwon National University)
Publication Information
Reproductive and Developmental Biology / v.30, no.3, 2006 , pp. 225-228 More about this Journal
Abstract
This study was undertaken to investigate the effect of ovulation-synchronization(OVSYNCH) method on conception rate after insemination of dairy cattle. The proportion of conception of normal fertility cows(65%) was higher than that in infertility cows(50%) in dairy cows with OVSYNCH treatment. However, there was no significant difference between experimental groups. In another experiment, when the OVSYNCH method was adapted in multiparous dairy cows, the conception rate of experimental group of $30{\sim}35kg/day$ in milk yield was significantly higher than those in groups of $20{\sim}25kg/day$ in milk yield(p<0.05). In conception rates by OVSYNCH method in experimental groups with different parity, the group of 1st parity was significantly higher than in 3rd parity group(p<0.05). The results suggest that conception rate by OVSYNCH method was affected by various reproductive conditions in dairy cattle, and OVSYNCH method could be used to increase the conception rate for infertility cows with hormone disorder.
Keywords
OVSYNCH; Dairy cows; Conception rate; Infertility cows;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Fernandes P, Teixira AB, Crocci AJ, Barros CM (2001): Timed artificial insemination in beef cattle using GnRH agonist $PGF_{2a}$ and estradiol benzoate (EB). Theriogenology 55:1521-1532   DOI   ScienceOn
2 Larson LL, Ball PJH (1992): Regulation of estrous cycle in dairy cattle. Theriogenology 38:255-267   DOI   ScienceOn
3 Park JJ, Im SK, Lee MS, Jeon KJ, Park SB, Jung YH, Woo JS, Na KJ (2003): Conception rate of ovulation-estrus synchronization method in Hanwoo. Korean J Animal Reprod 207-213
4 Pursley JR, Mee MO, Wiltbank MC (1995) Synchronization of ovulation in daily cows using $PGF_{2a}$ and GnRH. Theriogenology 44:915-923   DOI   ScienceOn
5 Stevenson JS, Kobayashi Y, Thompsom KE (1999): Reproductive performance of dairy in various programmed breeding systems including ovsynch and combinations of gonadotropin-releasing hormone and prostaglandin $F_{2a}$. Dairy Sci 82:506-15   DOI   ScienceOn
6 Thompson KE, Stevensen JS, Lamp GC, Grieger DM, Loest CA (1999): Follicular, hormonal, pregnancy responses of early postpartum suckled beef cow to GnRH, Norgestomet, and prostaglandin $F_{2a}$. J Anim Sci 77:1823-1832   DOI
7 Perry RC, Corah LR, Kiracofe GH, Stevenson JS, Beal WE (1991): Endocrine changes and ultrasonography of ovaries in suckled beef cows during resumption of postpartum estrous cycles. J Anim Sci 69:2548-2555   DOI
8 Pursley JR, Kosorok M, Wiltbank M (1990): Reproductive management of lactating dairy cows using synchronization of ovulation. J Dairy Sci 80:1746-11751
9 Twagiramungu H, Guilbault La Proulx J, Villeneuve P, Defour JJ (1992): Influence of an agonist of gonadotropin-releasing hormone (buserslin) on estrus synchronization and fertility in beef cow. J Anim Sci 70:1904-1910   DOI
10 Forbes WL, Corah LR, Stevenson JS (1997): Synchronized follicular growth and luteal gression before insemination of suckled beef cow. J Anim Sci 75 (Suppl. ):90(Abstract)
11 Schmitt EJP, Diaz TC, Drost M, Roomes C, Thatcher WW (1996): Use of a GnRH agonist or human chorionic gonadotropin for timed insemination in cattle. J Anim Sci 74:1084-1091   DOI
12 Geary TW, Whittier JC, Hallford DM, MacNeil MD (2001): Calf removal improves conception rates to Ovsynch and Co-synch protocols. J Anim Sci 79: 1-4   DOI
13 Kastelic JP, Mapletoft RJ (1998): Ovarian follicular responses in dairy cattle treated with GnRH and cloprostenol. Can Vet J 39:107-109
14 Pursley JR, Wiltbank MC, Stevenson JS, Ottobre JS, Garverick HA, Anderson LL (1997): Pregnancy rate per artificial insemination for cows and heifers inseminated at a synchronized ovulation or synchronized estrus. J Dairy Sci 80:295-300   DOI   ScienceOn
15 Senger PL (1994): The estrus detection problem: new concepts, technologies, and possibilities. J Dairy Sci 77:2745-2753   DOI   ScienceOn
16 Stevenson JS, Thompson KE, Forbes WL, Lamp GC, Grieger DM, Corag LR (2000): Synchronizing estrus and (or) ovulation in beef cow after combinations of GnRH, norgestomet, and prostaglandin $F_{2a}$ with or without timed insemination. J Anim Sci 78:1747-1758   DOI