Pinto C R, Eilts B E, Paccamonti D L
Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge 70803, USA.
Theriogenology. 1998 Jul 15;50(2):301-5. doi: 10.1016/s0093-691x(98)00138-1.
Hindquarter elevation time after artificial insemination in dogs was reduced from the common and arbitrarily used 10 min to only 1 min after insemination. Artificial insemination with fresh undiluted semen was conducted in 32 breedings using 15 hound bitches. The overall pregnancy rate was 91% (29/32), with an average litter size of 7.35 puppies per pregnancy. The pregnancy rate was not altered by reducing the 10-min (n = 14) hindquarter elevation time to 1 min (n = 18; P = 0.30). Similarly, the litter size was not different between groups (P = 0.40).
犬人工授精后后躯抬高时间从常用的、随意设定的10分钟减少至授精后仅1分钟。使用15只猎犬母犬进行了32次新鲜未稀释精液的人工授精。总体妊娠率为91%（29/32），每次妊娠平均产仔数为7.35只幼犬。将后躯抬高时间从10分钟（n = 14）减少至1分钟（n = 18），妊娠率未改变（P = 0.30）。同样，两组之间的产仔数也没有差异（P = 0.40）。
