Fertility in bitches artificially inseminated with extended, chilled semen.
Sixteen bitches were artificially inseminated with either fresh, 24 h-chilled or 48 h-chilled extended semen over 38 estrous cycles. A commercial system for extending, chilling and transporting semen commonly used in the equine industry was used Pregnancy rates and litter sizes of the bitches inseminated with extended, chilled semen (19/20, 95%; litter size = 7.1) were not significantly different from those observed in bitches inseminated with fresh semen (17/18, 94%; litter size = 7.2; P > or = 0.89). These results show that a commercial system for extending, chilling and transporting equine semen is an attractive and efficient method of shipping canine extended chilled semen.
Pinto
C R
CR
Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge 70803, USA.
Paccamonti
D L
DL
Eilts
B E
BE
D000704:Analysis of Variance; D000818:Animals; D003080:Cold Temperature; D004285:Dogs; D004971:Estrus / Q000502:physiology; D005260:Female; D005298:Fertility; D007315:Insemination, Artificial / Q000662:veterinary*; D008098:Litter Size; D011247:Pregnancy; D011270:Pregnancy, Animal; D012662:Semen Preservation / Q000379:methods / Q000662:veterinary*; D013997:Time Factors