Effect of GnRH-A treatment at weaning on follicular growth monitored by transrectal ultrasonography in sows
2009
Sasakura, H.(Miyazaki Univ. (Japan). Faculty of Agriculture) | Hidaka, R. | Hidaka, K. | Hidaka, M. | Kitahara, G. | Kamimura, S.
Therapeutic effect of GnRH-A (Buserelin 10microg) treatment at weaning on follicular growth was monitored by transrectal ultrasonography in sows. After GnRH-A treatment, plasma concentrations of estradiol-17 beta and IGF-1 have increased, and the diameter of ovulatory follicles has enlarged compared to those in the controls. There was neither difference in the interval to the estrus after weaning nor litter size between GnRH-A treatment and controls. GnRH-A treatment stimulates the ovarian function after weaning and enhances conception rates in sows.
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