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1接产保羔1.1消毒将分娩母羊的尾根外阴部肛门洗净。以19%来苏尔水洗擦消毒,再用布擦干。1.2按预产期将母羊挑出来单组分娩群。一般经产母羊尽量让其自由分娩;对初产母羊或有难产征状的母羊实行人工助产。1.3羔羊出生后送给母羊,让母羊舔干羔羊身上的黏液,以增强母子感情,羔羊才能吃饱奶。1.4一般初产母羊不带羔,不让羔羊吃奶,要人工辅助吃奶,吃几遍便会主动找羔喂奶。1.5母羊分娩后留在舍中与羔羊同居3~5d,等体力恢复和羔羊强壮后再行放牧。2救助假死有些羔羊生下来“假死”,还有的因早春天寒冻僵,表现… 相似文献
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辽宁绒山羊的初情期一般为5~7月龄,8~9月龄达到性成熟。母羊性成熟时,身体尚未发育完善,过早配种妊娠会妨碍自身的生长发育。当母羊体重达成年体重70%时可以配种。利用发情控制技术,可实现母羊的一年二产或两年三产,提高母羊的繁殖率。1发情季节辽宁绒山羊为短日照繁殖动物,即在一年四季中的光照时间变短的秋、冬季节出现发情。在繁殖季节里如果没有配种或配种未准胎,可出现几个发情周期, 相似文献
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本试验对因外源雌、孕激素引起的发情抑制进行对应的恢复处理,结果表明,对发情抑制的母羊处理有效弥补和完善了发情控制处理技术。 相似文献
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综述了2种对牛有效的商品化孕激素类产品,MGA和Norgestomet诱导不排卵母羊同期化发情的能力评估。研究表明这2种产品在促进绵羊非繁殖季节的繁殖性能方面是有效的,由此而解决了因被批准供绵羊同期发情和改进非繁殖季节的繁殖性能用的有效产品不足的困扰,从而为应用激素操纵技术,提高绵羊的繁殖力,开辟了一条有效途径。 相似文献
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母羊发情不规律,配不上种,属于羊的不孕症,可由几种疾病造成及相关治疗如下:
1 生殖器官发育不全
生殖器官发育不全是指母羊达到配种年龄而生殖器官尚未发育完全,临床上叫幼稚病。 相似文献
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东北细毛羊为短日照发情动物,1年1胎,除妊娠、哺乳时间外,1年中仍有4~5个月处于休情状态,每年的7~11月份才发情。为了使绵羊产羔后尽早发情、配种,提高生产效率,我们应用了CRID装置,PMSG促性腺激素和LRH-A3促性腺激素释放激素,复合孕酮制剂,对母羊进行诱导发情试验,并对发情配种效果进行了观察,取得了一些可靠数据,现将实验效果报告如下。 相似文献
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魏静 《四川畜牧兽医学院学报》2009,(4):28-32
在现代法律秩序中,商会自治规范是制定法的基础和必要的补充,甚至在某些方面替代了制定法;商会自治规范主要包括商会组织规范、行为规范、惩罚规范以及争端解决规范等;其效力仅及于其内部成员;商会自治规范和制定法之间存在冲突,但也存在整合的基础。 相似文献
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以国际标准强毒R株人工感染非免疫产蛋鸡,定时扑杀,分别从鼻窦、眶下孔、气管、肺、气囊、卵巢和输卵管分离MG,并收集感染鸡所产蛋分离MG。结果表明,人工感染48小时后上、下呼吸道及肺已被全面感染,96小时气囊已被感染,120小时输卵管已能分离到MG,卵巢始终分离不到MG。人工感染鸡自144小时便能在其所产蛋中分离出MG。药物治疗能在72小时内消除感染,油乳剂苗则需24天后逐渐降低蛋内MG分离率,药物卵内注射、种蛋药浴、高温处理均能杀死卵内MG,但以研制的种蛋浸泡剂药浴效果为最好。 相似文献
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本文概述了猪的毛色类型、猪的毛色遗传模式,着重综述了猪毛色基因分子基础的研究进展,指出存在问题并就未来发展方向做了思考。 相似文献
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REASONS FOR PERFORMING STUDY: Centesis of the bicipital bursa using an 8.9 cm long spinal needle has been reported but the alternative of employing a 3.8 cm long hypodermic needle requires validation. OBJECTIVE: To compare the efficacy of 2 different methods of centesis of the bicipital bursa and to evaluate the usefulness of ultrasonographic imaging to determine the location of solution administered when centesis of the bursa is attempted. METHODS: For Trial 1, 6 clinicians, who had no previous experience of centesis of the bicipital bursa, attempted to inject a solution composed of an aqueous radiopaque contrast medium and physiological saline solution (PSS) into the bicipital bursae of 2/12 horses using the previously described distal approach to inject one bursa and a proximal approach to inject the contralateral bursa. The bicipital tendon and bursa were examined ultrasonographically before and after injection; and both shoulders were examined radiographically to identify the location of the medium. In Trial 2, another 6 clinicians, also with no previous experience of centesis, repeated Trial 1, using 6 horses, but the radiopaque contrast medium was mixed with air instead of PSS. RESULTS: Accuracy of centesis using the proximal approach was 39% and that of the distal approach 28%. Ultrasonographic examination of the shoulder allowed the location of solution and air to be accurately predicted in all 12 shoulders examined. CONCLUSIONS: Clinicians who have had no previous experience performing centesis of the bicipital bursa are unlikely to be successful in centesis using either approach. Radiographic examination after injecting a radiopaque contrast medium may be necessary to assess the success of centesis especially if bursal fluid is not obtained during centesis. Injecting air along with the radiopaque contrast medium provides more accurate ultrasonographic confirmation of centesis and better radiographic definition than does injection without air. 相似文献
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