Kim Hyeon H, Yeon Seong C, Houpt Katherine A, Lee Hee C, Chang Hong H, Lee Hyo J
Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 660-701, Republic of Korea.
Vet J. 2006 Jul;172(1):154-9. doi: 10.1016/j.tvjl.2005.02.028.
This study investigated the effects of ovariohysterectomy on reactivity of German Shepherd dogs. Fourteen healthy dogs ranging in age from 5 to 10 months were assigned to an ovariohysterectomy or a sexually intact group. Their behaviours were digitally video recorded 4-5 months after treatment and analysed for treatment effects on reactivity. Responses to the approach of an unfamiliar human leading an unknown dog were assigned the following reactivity scores: severe reactivity, 3; moderate reactivity, 2; defensive or mild reactivity, 1; attentive or no reactivity, 0. Median reactivity scores in response to the approach of an unfamiliar human walking with an unknown dog were calculated for each observation period. Dogs in the ovariohysterectomized group showed more reactivity, and median reactivity scores were higher in the ovariohysterectomy group compared with those of the sexually intact group. Ovariohysterectomy of 5-10 month old German Shepherd bitches specifically, and perhaps bitches of any breed generally, may induce an increase in reactivity. Practitioners may benefit from recognizing that a range of behavioural changes may occur post-ovariohysterectomy.
本研究调查了卵巢子宫切除术对德国牧羊犬反应性的影响。将14只年龄在5至10个月的健康犬分为卵巢子宫切除组或未绝育组。在治疗后4至5个月对它们的行为进行数字视频记录，并分析治疗对反应性的影响。对陌生人和陌生犬靠近的反应给予以下反应性评分：严重反应性为3分；中度反应性为2分；防御性或轻度反应性为1分；专注或无反应性为0分。计算每个观察期对陌生人和陌生犬靠近的反应性评分中位数。卵巢子宫切除组的犬表现出更高的反应性，与未绝育组相比，卵巢子宫切除组的反应性评分中位数更高。具体而言，5至10个月大的德国牧羊犬母犬进行卵巢子宫切除术后，或许任何品种的母犬普遍都会导致反应性增加。从业者若能认识到卵巢子宫切除术后可能会出现一系列行为变化，将从中受益。
