共查询到20条相似文献，搜索用时 140 毫秒
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中草药具有价格低廉、副作用小、无药残等优点,因其可改善肉蛋品质、促进家禽生长发育、提高家禽免疫力,而得到养殖户的认同。主要分析了将中草药应用于家禽生产所显现的优势及其在家禽生产中的应用情况,旨在使养殖户对中草药在家禽生产中的应用有所了解,从而科学、合理使用中草药及其制剂,以充分利用我国丰富的中草药资源,使之在养禽生产中发挥更重要的作用。 相似文献
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本文论述了黄芪多糖的生物学功能和在家禽生产中的应用情况。黄芪多糖能促进家禽机体生长,增强免疫功能,抗病毒,抗氧化,还能抑制细菌,在家禽生产中已经开始应用。 相似文献
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单色光红光影响家禽繁殖性能的研究进展 总被引：2，自引：0，他引：2
《中国家禽》2016,(23)
光照是种禽生产中重要的环境条件之一,不同波长的光照对家禽的繁殖性能影响不同。文章综述了单色光红光对家禽性腺发育、产蛋性能、产蛋周期的影响,探讨了红光照明在生产中的使用模式,重点论述多巴胺、促性腺激素释放激素和甲状腺激素在介导红光刺激和改善家禽繁殖性能中的作用,为单色光红光在家禽生产中的应用提供理论依据。 相似文献
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微量元素是家禽生长和发育必需的营养成分。微量元素不仅参与家禽体内蛋白质、氨基酸、核酸、脂肪、碳水化合物、维生素以及微量元素本身等营养物质的代谢,而且还在骨骼发育、生殖、免疫、凝血、生物膜稳定等生理机能中担负起重要作用。近年来,有关微量元素在家禽生产中的应用研究多见报道。本文就有关微量元素铬、砷在家禽生产中的应用作一综述。１铬在家禽生产中的应用国内对铬在家禽生产中的应用研究较少,Ｊｅｎｓｅｎ（１９７８）报道,添加５×１０-６铬可显著提高鸡蛋的哈氏单位。Ａｎｄｅｒｓｏｎ（１９８９）发现,给雏火鸡补充铬,可… 相似文献
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畜禽生产中氧化应激分子调控机理及营养策略研究进展 《畜牧与饲料科学》2021,42(4):29-36
现代畜禽生产过程中发生的氧化应激损害畜禽健康,降低畜禽生产性能。现代系统动物营养学认为畜禽体内自由基稳态失衡是导致氧化应激—炎症反应—免疫功能失衡,威胁畜禽健康,降低畜禽生产性能的根本原因。畜禽体内多种信号通路组成的调控网络共同维持自由基稳态。综述了p38MAPK、Nrf2-ARE、NF-κB等氧化应激相关信号通路在畜禽生产中的调控机制及其营养策略研究进展,以期为畜禽生产中缓解氧化应激损伤,保障动物福利,提高生产性能提供参考。 相似文献
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畜禽微生态制剂的研究进展及在猪鸡中的应用 总被引：2，自引：0，他引：2
随着现代养殖业的发展,畜禽微生态制剂在世界范围内越来越受到人们重视。作者系统介绍了畜禽微生态的作用原理及其在生产中的应用。 相似文献
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畜禽生产中,抗生素的不合理使用在畜禽产品中极易形成抗生素残留超标的安全隐患,不仅威胁人类健康,也制约着养殖业的可持续发展。益生菌正是在这种情况下作为抗生素的有效替代品应用于动物饲料中。但是,有关益生菌制剂发挥益生作用的机理还不是很清楚,而通过现代生物技术对有益菌株进行遗传标记,是研究和阐明其在动物体内作用机理的重要技术手段和有效途径之一。绿色荧光蛋白（green fluorescent protein,GFP）作为新的报告系统,已开始逐渐应用于饲用微生物的动态监测和作用机理研究中,且已表现出良好的应用前景。 相似文献
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为防止个人身份信息的泄漏,身份证、密码、签名、生物特征（指纹、虹膜等）及遗传物质DNA等身份识别技术都得到了迅速的发展和应用。如今随着现代畜牧业的发展,这些身份识别技术不仅用于人类,在畜禽中也得到了广泛的研究和应用。笔者阐述了身份识别技术在畜禽的产品流通、疾病防控、育种、生产管理及品种鉴定防伪等方面的研究进展和应用情况。 相似文献
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Rautenschlein S 《DTW. Deutsche tier?rztliche Wochenschrift》2005,112(8):310-312
Before the implementation of strategies to establish specified pathogen-free commercial poultry flocks, the ultimate goals need to be identified: 1) consumer protection by minimizing the risk for zoonotic diseases and food-borne pathogens, and/or 2) animal health protection against primary and secondary pathogens. The success for the establishment of specific pathogen-free poultry flocks depends on the biological characteristics, the epidemiological distribution and the transmission route of each pathogen. For zoonotic pathogens such as Salmonella Typhimurium, Salmonella Enteritidis, Campylobacter jejuni or the high pathogenic avian influenza virus, eradication has to be ultimate goal. Despite tremendous control efforts in field, only partial control of these pathogens has been achieved so far. In the future it will be necessary to continue these eradication efforts by combining optimized hygiene programs at all production levels with intensive monitoring and immunoprophylaxis. For primary pathogens affecting the health condition of poultry without known zoonotic potential, such as Salmonella Gallinarum, avian Mycoplasma or leucosis virus, specified pathogen free flocks have been established on the parent and grandparent level. In order to achieve a status free of these pathogens, rigid hygiene control, especially on the hatchery level and monitoring programs combined with elimination of pathogen- and antibody-positive birds were implemented. Nevertheless, the economically most important diseases of modern poultry production are of multifactorial origin. Ubiquitous secondary pathogens in combination with insufficient management or immunosuppressive agents induce great economic losses for the poultry producers. These secondary pathogens can not be eliminated due to their ubiquitous distribution. In the future only a reduction of these factorial diseases will be possible combining hygiene management and optimization of poultry husbandry. For the establishment of specified pathogen free poultry flocks in the field, risk analysis is necessary and the structure of poultry production has to be considered before and eradication program can be carried out successfully. 相似文献
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Ascaridiosis is still a cause of economic losses in modern poultry production systems. Improving genetic resistance to this disease provides an attractive alternative for free-range organic poultry producers and will eventually reduce the extensive use of anthelmintic drugs. An experiment was conducted to compare resistance to Ascaridia galli infections in Lohman Brown (LB) and Danish Landrace (DL) chickens. A self-cure mechanism to A. galli infections was observed in both breeds. However, significantly higher worm burdens and egg excretion were seen in the DL compared to LB chickens during primary infection. This indicates that breeding for resistance to A. galli is possible in chickens. 相似文献