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丁酸钠对动物胃肠道影响的研究进展 总被引:3,自引:1,他引:2
作者在介绍丁酸钠在动物养殖应用的基础上,着重介绍丁酸钠对动物胃肠道的影响,并进一步探讨其机理,以期为今后国内外饲用丁酸钠的研制开发和应用提供参考。 相似文献
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丁酸钠在动物生产中的应用研究进展 总被引:1,自引:0,他引:1
丁酸钠具有促进动物生长,提高饲料转化效率,抑制肠道病原茵繁殖和提高机体免疫能力等作用.本文就丁酸钠的理化性质、吸收代谢、生物学效应及其在畜禽养殖上的应用等作一阐述. 相似文献
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王羽 《养殖与饲料.饲料世界》2018,(9)
畜禽养殖中添加饲用益生素能够提高畜禽生产能力,对畜禽肠道菌群进行调控,从而调节畜禽身体代谢能力,提高畜禽的身体免疫力。本文在介绍益生素的分类及作用的基础上,分析了饲用益生素在畜禽健康养殖中的应用方法:与中草药配合使用、与抗生素配合使用、与酶制剂配合使用、与肽配合使用,以期加强益生素在畜禽健康养殖中的作用,提高养殖效益。 相似文献
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丁酸钠的生理功能及其在养殖业中的应用研究进展 总被引:1,自引:0,他引:1
丁酸钠是一种新型绿色饲料添加剂,具有调节动物胃肠道微生态平衡、增强机体免疫机能和提高动物生产性能等功能,目前在饲料中应用广泛,且效果卓著。本文就丁酸钠理化性质、生理功能及其在养殖业中的应用进展作一综述,为丁酸钠的功能开发及进一步的推广应用提供参考。 相似文献
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正益生素是一种绿色的、新型无毒的微生物类饲料添加剂,具有预防疾病、调节机体微生态平衡、促进动物健康、提高饲料转化率和保护生态环境等多种功能,并且使用时无药物残留、无毒副作用且不产生耐药性,近年来在畜禽生产中的应用十分广泛,已成为抗生素的理想替代品。本文介绍了饲用益生素在畜禽健康养殖中的应用情况,并探 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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