共查询到20条相似文献，搜索用时 140 毫秒
1.
2.
免疫调控技术是一项以自身激素或细胞蛋白调控对象为主的动物生产性能调控技术,在促进动物生长、提高动物繁殖性能、提高产品质量等畜牧业生产实践中显示出广阔的应用前景。本文就调控生长的Myostatin、脂肪细胞膜蛋白、生长轴激素、提高繁殖性能的性腺激素、肌肉生成抑制因子——瘦素等免疫调控技术作用作一综述,并评价其在动物生产中的应用前景和未来的研究方向。 相似文献
3.
4.
类固醇激素免疫在调控畜禽繁殖和生长中的应用 总被引：3，自引：0，他引：3
激素免疫技术又称激素免疫中和技术(Hormone immunoneutralization,HIN)是以激素作为抗原,通过主动免疫诱导产生抗激素抗体或被动注射抗激素抗体,全部或部分中和体内激素的生物活性,对内分泌系统进行积极的调控以提高动物生产性能的免疫学技术。随着生物技术的飞速发展,特别是基因重组技术、蛋白质工程技术、免疫学技术的发展和细胞生物学、分子生物学、生物化学和内分泌学等学科的渗透,动物生长调控中的免疫技术在此基础上逐渐发展起来并越来越受到广大畜牧研究者的关注。这种新型的免疫技术具有灵敏性强、特异性高的特点,给动物注射微量的激素抗原就可以达到提高动物生产性能的目的。 相似文献
5.
激素免疫是基于激素的内分泌机制,利用激素免疫动物,而人为改变动物体内激素正常代谢水平,以达到提高动物生产繁殖性能为目的。本文着重综述了类固醇激素免疫和含氮激素免疫在动物生殖调控中的应用。 相似文献
6.
20世纪60年代末，在免疫学、生物化学、内分泌等学科发展的基础上，逐渐兴起了一门边缘学科──激素免疫学，该学科是研究和利用激素免疫中和(Hormone Immunonentralization,HIV)技术调控动物的生长和繁殖。类固醇类雄激素免疫是激素免疫中一个重要的组成部分，其对于提高和降低繁殖率都有积极的意义。1983年澳大利亚多胎素问世，提高绵羊产羔率18.64％，类固醇激素免疫开始应用于畜牧生产，雄激素免疫的研究随之进入一个新的阶段。当前，雄激素免疫的研究已涉及到猪、牛、羊、鹿、狗、鼠、有袋目、禽类等多种动物。1 雄激素分泌及生理作… 相似文献
7.
利用激素免疫中和技术(HIN)调节激素分泌,从而控制动物的繁殖性能,是动物繁殖学中的一个新研究领域,对提高动物繁殖率有很重要的意义。1977年澳大利亚联邦科工组织(CSIRO)的CoX等首先发现类固醇激素免疫技术可提高绵羊的双羔率,并研制成功了多胎素(Fecundin)。此后,陆续出现了用雄烯二酮、雌酮、睾酮、孕酮及雌二醇等性腺类固醇激素主动或被动 相似文献
8.
根据近年来在生殖免疫方面取得的研究进展,介绍了激素免疫技术的应用,H-Y精子免疫法性别化精液技术、早期胚胎性别控制免疫技术等在提高动物繁殖力方面的重要作用。 相似文献
9.
近十几年来,家畜繁殖学、内分泌学和免疫学等学科相结合形成了一门崭新的边缘学科——激素免疫学。并由此而产生了激素免疫技术,激素免疫技术又叫激素中和技术(Hormone immunoneutralization,HIN),即用激素作为抗原,对动物进行主动免疫,在体内产生的抗体(抗激素)将内源激素的生物活性的全部或部分中和,从而调节、改变激素的平衡。通过免疫手段控制激素水平为有效地提高家畜生长、繁殖等开辟了一条简单易 相似文献
10.
雄激素免疫的研究进展 总被引：2，自引：0，他引：2
20世纪 6 0年代末 ,在免疫学、生物化学、内分泌学等学科发展的基础上 ,逐渐兴起了一门边缘学科———激素免疫学 ,该学科是研究和利用激素免疫中和 (ＨｏｒｍｏｎｅＩｍｍｕｎｏｎｅｎ ｔｒａｌｚａｔｉｏｎｍ ,ＨＩＶ)技术调控动物的生长和繁殖。类固醇类雄激素免疫是激素免疫中一个重要的组织部分 ,其对于提高和降低繁殖率都有着积极的意义。 1983年澳大利亚多胎素问世 ,提高绵羊产羔率 18.6 4% [1] ,类固醇激素免疫开始应用于畜牧生产 ,雄激素免疫的研究随之进入一个新的阶段。当前 ,雄激素免疫的研究已涉及到猪、牛、羊、鹿、狗、鼠、… 相似文献
11.
To describe and then fulfill agricultural animals' needs, we must learn more about their fundamental psychological and behavioral processes. How does this animal feel? Is that animal suffering? Will we ever be able to know these things? Scientists specializing in animal cognition say that there are numerous problems but that they can be overcome. Recognition by scientists of the notion of animal awareness has been increasing in recent years, because of the work of Griffin and others. Feeling, thinking, remembering, and imagining are cognitive processes that are factors in the economic and humane production of agricultural animals. It has been observed that the animal welfare debate depends on two controversial questions: Do animals have subjective feelings? If they do, can we find indicators that reveal them? Here, indirect behavioral analysis approaches must be taken. Moreover, the linear additivity of several stressor effects on a variety of animal traits suggests that some single phenomenon is acting as a "clearinghouse" for many or all of the stresses acting on an animal at any given time, and this phenomenon might be psychological stress. Specific situations animals may encounter in agricultural production settings are discussed with respect to the animals' subjective feelings. 相似文献
12.
13.
14.
在动物疾病诊疗过程中,良好的镇痛效果是保证外科手术顺利进行的必要条件,可以避免和减少动物手术中死亡,同时也是多种手术术后护理的主要内容。近些年来,鉴于人们对动物保健的重视,以及动物麻醉药物和方法的快速发展,麻醉性镇痛药在国内外动物医学领域中的应用逐渐增多,但在使用过程中由于动物种属差异及兽医师水平不同,有时会遇到诸如药物选择不当、药物过量、药物过敏等一系列问题。因此,对麻醉性镇痛药物的作用部位和作用机理、在临床医学领域与动物医学领域的应用情况及其耐受性和成瘾性等方面进行综述,以便这类药物更好地应用于动物的疼痛治疗和复合麻醉中。 相似文献
15.
动物专用大环内酯类新药——泰拉霉素 总被引：3，自引：0，他引：3
泰拉霉素是动物专用的新型大环内酯类抗生素,国内已批准用于猪呼吸系统疾病的防治。泰拉霉素的药动学特性优良,吸收快,达峰时间短,生物利用度高,在肺中可达到很高的组织浓度,消除半衰期长,药效持久。单次肌注或皮下给药即能提供全程的治疗,在兽医临床具有广阔的应用前景。本文综述了泰拉霉素的理化性质、作用机理、抗菌活性、药动学、药效学、不良反应及残留,为该药在兽医临床的应用提供参考资料。 相似文献
16.
Plasma progesterone- and LH concentrations were studied in lactating dairy cows around the superovulatory heat. The pattern of both hormones accurately reflected the donor animals' endocrine balance and could be used to evaluate and predict the subsequent potentials or quality of a given animal as embryo- and oocyte donor. It was the general impression that both PMSG- and FSH treatment caused endocrine changes in progesterone- and LH patterns that would account for improper oocyte- and embryo development. 相似文献
17.
M Stauffacher 《Schweizer Archiv für Tierheilkunde》1992,134(3):115-125
The Swiss Federal Act on Animal Protection (1978) requires the sale of mass-produced housing systems for farm animals to be authorized by the Federal Veterinary Office. Authorization is only granted for housing systems that safeguard the animals' welfare. A concept for the assessment of Animal Welfare has to provide a high forensic value. The capacity of farm animals to adapt to an intensive housing system can be directly examined, whereas the existence and extent of subjective feelings can only be assumed. In our concept the examination focuses on the interaction of individuals with their artificial environment. The main question is whether or not the individuals are able to cope with given nonspecific (e.g. temperature, humidity) and specific (e.g. drinking troughs, behaviour of conspecifics) stimuli in order to reach the immediate (e.g. drinking, make way for) and ultimate (survival, reproduction success) goals. Animals of the same breed are observed in a highly diverse environment in order to determine normal behaviour. Whether behavioural expressions which differ significantly from normal behaviour are adaptive to the restrictive housing conditions is judged by the behaviours' consequences for both, the individuals and the environment. Many studies prove the concept's high forensic value and the authorities prefer conclusions based on this concept to others referring to the animals' motivational and emotional state. However more research has to be done with respect to animal welfare in farm and laboratory animal breeding as well as in the use of laboratory animals for experimental studies. 相似文献
18.
胃饥饿素(Ghrelin)是一种由28个氨基酸组成的多肽,具有促进生长激素释放、调控动物采食和能量代谢等作用。文章从Ghrelin的转录、修饰和体内循环过程出发,并对一些营养物质和激素对Ghrelin分泌的影响与调控机制进行综述,旨在为进一步研究调控Ghrelin分泌的机制提供理论参考,也为阐明动物的促生长机制提供理论依据。 相似文献
19.
Twelve possible tests of sensibility and six possible tests of vitality were evaluated for their ease of application and the reliability of the animals' responses in 25 animals of six species of captive cetaceans. The protocols for the application of the tests and the responses observed are described. 相似文献
20.
Because regulatory mechanisms are not fully developed in neonates, they are particularly susceptible to environmental influences on behavior. Events early in life have the potential for multiplicative effects. Perinatal stress appears to alter the function of the HHA axis in an adaptive manner. Optimal levels of stress might therefore be used in the rearing of domestic animals. Further research, including an assessment of animals' welfare, is needed. The early social environment is of critical importance in behavioral ontogeny. Social conditions other than those with which a species has evolved, such as isolation, rearing without conspecifics, or rearing in single-sex groups, can alter later behavior. Effects on agonistic and sexual behavior, in particular, have been well researched. The types of learning involved in primary socialization are not directly known for most farm species, although other features of socialization are well documented. Nutrition plays an obvious role in physical development. Less obviously, it appears that a low plane of nutrition or protein deficiency can permanently impair learning ability through a decrease in the number of brain neurons. 相似文献