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肉用青龙犬是用级进杂交法和三元杂交法培育出来的,是一种很好的肉用犬品种。毛为黑、白、黄、青四种颜色。这四种颜色杂交后可能出现浅黄和黄白的变色种。体重30~40千克(成龄犬)。按科学配方饲养100~120天,体重可达到19~26千克。身高55~73厘米,被毛长5~8厘米,头和颈部饰毛为10~14厘米,后腿饰毛为8~15厘米,尾毛15~20厘米。肉用青龙犬投资与效益比:1∶0.8~1.25;料肉比:3~3.4∶1;出肉率剥皮为65%,退毛65%~75%。该犬外型如狮,壮如牛,猛如虎。现将肉用青龙犬的饲养管理介绍如下:(一)犬舍的建造犬舍选在背风向阳、地势高燥、夏凉冬暖… 相似文献
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养犬场应建立严格的消毒制度,场地、犬舍每天都应清扫,每7天要消毒1次,每月应大消毒1次,场区地面、犬舍用2%~3%火碱消毒。在犬舍入口通道处,应上安装紫外线灯,下有消毒池,池中用1%火碱消毒,进入犬舍时要停留8~10分钟。食槽、饮水器可用杀菌消毒刹消毒,外地引进种犬可用0.01%的高锰酸钾水让犬饮用,清理胃肠道,减少犬的发病。对种公犬的运动场,可用20%石灰水喷洒地面,然后垫上一层沙子,再用5%漂白粉溶液喷洒地面,经5天后可放种公犬。产仔前母犬的空舍应用福尔马林熏蒸,每立方米空间用福尔马林42克、水12.5亳升、高锰酸钾21克混合加入容器内,… 相似文献
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赵建东 《江西畜牧兽医杂志》1998,(3)
5少病少亡法肉狗高效饲养,不仅要重视解决多产的问题,还应注意解决少亡的问题。沉痛的教训告诫我们:养犬,防疫先于一切,重于一切;而规模养犬,疫病防治更急干一切,高于一切。主要抓以下几点:犬舍卫生。犬舍卫生是犬病、疫情防治的基础,处于相当重要的地位。应每月大清除1次,一些重要场所应半月清除1次,地面粪便则要求天天清理。犬舍每月全面消毒1次,春秋2季彻底消毒。犬舍空气要清新,光照要充足,温度、湿度要适宜。规模养狗更严禁与外界人、畜、犬接触,以防疫病传入。犬食消毒。病从口入,应注意严格把关。首先注意食具和饮… 相似文献
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R D Zinn 《Journal of the American Veterinary Medical Association》1968,153(12):1883-1886
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The case of a polyorchid Irish Setter is presented here. Castration and intra-abdominal testis removal were performed one year of age when one scrotal and one cryptorchid testis near the right inguinal canal were removed. Later it became apparent that there was still testosterone production. A third testis, abdominal cryptorchid, was found on the right side cranially and right to the bladder. The third testis had a strong cranial suspensory ligament and the tail of the epididymis was elongated. The ductus deferens did not enter the prostate but followed the gubernaculum to the inguinal canal near the stump of the previous operation on the caudal right testis. This suggests that two right cryptorchid testes had common ductus deferens. 相似文献
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导盲犬是一种工作犬,其主要工作是代替视障人士的双眼,为他们领路。导盲犬的原理是利用动物有自我保护的本能,行走会避开障碍物, 相似文献