Neely C D, Thomson D U, Kerr C A, Reinhardt C D
Department of Clinical Sciences, Kansas State University, Manhattan 66506.
J Anim Sci. 2014 May;92(5):2225-9. doi: 10.2527/jas.2013-7424. Epub 2014 Mar 26.
Crossbred horned steers and heifers (n = 40; BW = 311.8 ± 4.7 kg) were used to determine the effect of dehorning methods on pain, cattle behavior, and wound healing. Cattle were blocked by weight and randomly assigned to 1 of 4 treatments: 1) control (CON), 2) banded using high tension elastic rubber (BAND), 3) mechanically removed (MECH), or 4) tipped (TIP). Vocalization and behavior were recorded during the dehorning process. Wound healing scores, attitude, gait and posture, appetite, and lying were recorded daily. Vocalization scores were highest for MECH cattle and BAND cattle vocalized more than TIP and CON (P < 0.05). Attitude (P = 0.06), gait and posture (P = 0.06), and lying scores (P < 0.05) were higher for BAND cattle in the days following procedures compared to MECH, TIP, and CON cattle. Cattle in the BAND treatment tended (P < 0.13) to have higher appetite scores than the other methods. Wound healing scores (horn bud and bleeding) were higher for BAND cattle than MECH, TIP, and CON cattle (P < 0.05). These data indicate that MECH is a painful procedure for cattle at the time of the procedure. Banding to remove horns from cattle is not recommended based on the data and observations from this study.
选用杂种有角公牛和小母牛(n = 40;体重 = 311.8 ± 4.7千克)来确定去角方法对疼痛、牛的行为和伤口愈合的影响。牛按体重进行分组,并随机分配到4种处理方法中的一种:1)对照组(CON),2)使用高张力弹性橡胶进行捆绑去角(BAND),3)机械去角(MECH),或4)烧烙去角(TIP)。在去角过程中记录发声和行为。每天记录伤口愈合评分、态度、步态和姿势、食欲以及躺卧情况。MECH组牛的发声评分最高,BAND组牛的发声比TIP组和CON组更多(P < 0.05)。与MECH组、TIP组和CON组牛相比,在处理后的几天里,BAND组牛的态度评分(P = 0.06)、步态和姿势评分(P = 0.06)以及躺卧评分(P < 0.05)更高。BAND处理组的牛食欲评分往往(P < 0.13)高于其他方法。BAND组牛的伤口愈合评分(角芽和出血情况)高于MECH组、TIP组和CON组牛(P < 0.05)。这些数据表明,MECH在操作时对牛来说是一种痛苦的程序。基于本研究的数据和观察结果,不建议对牛采用捆绑去角的方法。