COMPARISON OF HCG, BUSERELIN AND LUPROSTIOL FOR INDUCTION OF OVULATION IN CYCLING MARES

被引:31
作者
HARRISON, LA
SQUIRES, EL
MCKINNON, AO
机构
[1] Animal Reproduction and Biotechnology Laboratory, College of Veterinary Medicine, Colorado State University, Fort Collins, Colorado
关键词
D O I
10.1016/S0737-0806(07)80039-6
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
Sixty nonlactating light-horse mares were used to compare the efficacy of hCG, buserelin (a GnRH analog) and luprostiol (a PGF2-alpha analog) for induction of ovulation in cycling mares. Mares were assigned to 1 of 4 treatments: 1) controls; 2) 40-mu-g buserelin IM at 12 hr intervals during estrus until ovulation; 3) 7.5 mg IM luprostiol; and 4) 3,300 IU hCG. Treatments were given once a mare obtained a greater-than-or-equal-to 35 mm follicle and had been in estrus greater-than-or-equal-to 2 days. Both buserelin and hCG shortened (p < 0.05) the interval from treatment to ovulation compared to controls; whereas, luprostiol failed to hasten ovulation. Number of follicles ovulated was similar among all 4 groups. Although buserelin and hCG were equal in their ability to induce ovulation, an average of 3.8 injections of buserelin was required for hastening of ovulation.
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页码:163 / 166
页数:4
相关论文
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