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繁殖障碍是奶牛饲养过程中一类常见的疾病,可导致奶牛繁殖性能降低。子宫内膜炎、胎衣不下、卵巢囊肿等疾病是引发奶牛繁殖障碍的主要原因。此外,遗传、营养、环境等因素也可造成奶牛繁殖障碍,严重影响奶牛的正常生产,对我国奶牛养殖业造成巨大的经济损失。本文对引起奶牛繁殖障碍的疾病原因、临床症状、治疗方法和预防措施进行论述,提高奶牛场对该病的认识。 相似文献
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奶牛胎衣不下症已经成为影响奶牛繁殖的主要疾病之一，严重制约了奶牛养殖业的发展，为了更好的了解和防治该病的发生，本文详细阐述了该病的发病原因、临床诊断、中西医治疗措施以及典型病例的诊治，力求为科学防控该病提供有益参考。 相似文献
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奶牛繁殖障碍疾病严重影响着奶牛业经济的发展。在此围绕引起奶牛繁殖障碍的三个主要因素（饲养管理不当、生殖器管疾病和繁殖技术失误）,从奶牛繁殖障碍疾病的发病原因、临床症状、诊断方法、治疗原则以及预防对策上进行概述。 相似文献
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奶牛产后生殖系统疾病是导致奶牛生育能力低下的重要因素之一。大量研究表明,全球多达一半的奶牛会在产后遭受至少一种生殖系统疾病的危害,严重影响了奶牛的繁殖性能,给奶牛养殖业和乳制品行业带来巨大经济损失。因此,本文对奶牛产后常见的生殖系统疾病包括子宫炎、子宫内膜炎以及卵巢功能受损的病因、诊断方法以及防控措施进行了论述,旨在为奶牛养殖业和乳制品行业防控奶牛产后生殖系统疾病提供科学参考。 相似文献
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奶牛养殖业在畜牧业中占有很大的地位,影响着农村经济的发展,而奶牛的繁殖障碍却严重地阻碍着奶牛养殖业的发展,大幅度地降低了养殖者的经济效益。奶牛繁殖障碍综合症的治疗,应根据病因,采取适当措施。目前,临床上治疗奶牛繁殖障碍综合症的方法有：生物疗法、激素疗法、激光疗法、子宫冲洗灌注法、中药疗法、针灸疗法等,但治疗某种疾病的方法往往不是单一的,要综合治疗。 相似文献
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奶牛繁殖障碍防治的研究进展 总被引：1，自引：0，他引：1
奶牛繁殖障碍严重影响着奶牛业经济的发展，在中国不孕症奶牛占20%-30%，其损失很严重。饲养管理不当、生殖器官疾病和繁殖技术失误是引起奶牛繁殖障碍的三个主要因素，笔者从奶牛繁殖障碍的发病原因、临床症状、诊断方法、治疗原则以及预防对策上进行了要领。 相似文献
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Charles J Innis Thomas H Boyer 《Veterinary Clinics of North America: Exotic Animal Practice》2002,5(3):555-78, vi
The study of reproductive diseases of chelonians has become increasingly sophisticated in the last decade. Widespread captive breeding has increased the number of reproductive problems presented to veterinarians. Advances in the level of veterinary care have encouraged chelonians owners to seek solutions to problems that may have previously been considered unsolvable. Improved diagnostic imaging, particularly radiography, ultrasonography and endoscopy, have made visualization and diagnosis of reproductive disease easier. Better quality veterinary care has made treatment of chelonian diseases more sophisticated which has lead to improved methods of anesthesia, surgery, and medicine. Concerns over rapidly diminishing chelonian populations and habitat have made the need for study of reproduction a higher priority; veterinary medicine has gained from this research. 相似文献
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HAO Haisheng ZHAO Shanjiang LIU Yunxiang XU Li WANG Xianjun LI Laibao ZHU Huabin 《中国畜牧兽医》2007,47(10):3259-3269
With the rapid development of dairy breeding and the scale feeding level,the average individual milk yield of dairy herds in China has been greatly improved over the last few decades.However,the reproductive performance of dairy cows,especially in high-producing dairy cows,has declined continuously and affected severely dairy farm profitability.Reproductive performance of dairy cows was influenced by many factors including environment,herd management,genetics and various diseases.It has become more evident that genital tract diseases(also known as reproductive diseases) decreased reproductive performance of dairy cows during the last 10 years.The effect of reproductive diseases on reproduction of dairy cows has received more attention.This paper briefly described the incidence of reproductive diseases such as metritis,various types of endometritis and retained fetal membrane and ovarian diseases such as ovarian cyst,persistent corpus luteum in China and abroad.This paper highlighted the effects of reproductive diseases on reproductive performance such as days open,calving interval,pregnancy rate,estrus detection,days to first breeding and breeding index.Moreover,we analyzed in more detail the possible mechanisms by disrupting endocrine signaling,damaging intrauterine environment and causing ovarian dysregulation.Lastly,we looked forward to the future research direction of reproductive diseases of dairy cows that provided data reference and theoretical support for improving the management measures of scale feeding,reducing the incidence of reproductive diseases,improving the production and reproductive capacity of dairy herds in China. 相似文献
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在过去几十年，随着奶牛育种和规模化饲养水平的快速发展，中国奶牛群单产水平大幅提高，但是奶牛，特别是高产奶牛繁殖性能呈现不断下降趋势，严重影响了奶牛养殖的盈利能力。繁殖性能的降低受多种因素影响，包括环境、畜群管理、遗传和各种疾病等。近年来，生殖器官疾病（也称繁殖疾病）降低奶牛生殖能力的情况越来越明显，其对奶牛繁殖的影响受到了越来越多的关注。文章简述了国内外生殖道疾病如子宫炎、子宫内膜炎、胎衣不下和卵巢疾病如卵巢囊肿、持久黄体等繁殖疾病发生情况。通过文献检索和数据比较，重点介绍了繁殖疾病对奶牛繁殖性能如空怀天数、产犊间隔、妊娠率、发情检出率、产后首次配种天数、配种指数等繁殖指标的影响和研究成果。同时，重点分析了繁殖疾病通过干扰生殖内分泌，损伤子宫内环境，导致卵巢功能异常影响奶牛繁殖性能的可能机制，并对奶牛繁殖疾病研究方向提出了展望，以期为改进中国规模牧场管理措施、减少繁殖疾病发生、提高奶牛群生产和生殖能力提供数据参考和理论支持。 相似文献
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ZHAO Shanjiang HAO Haisheng LIU Yunxiang WANG Xianjun XU Li LI Laibao WANG Huan ZHU Huabin 《中国畜牧兽医》2007,47(9):2906-2916
Over the past 20 years,with the continuous promotion of the genetic improvement plan of dairy cow population and the continuous improvement of feeding technology,the intensive level and milk yield of dairy cow population in China are continuously improving.However,the reproduction data over the years showed that the more milk yield,the more obviously decline in reproductive performance,and the more prominent of the reproductive problems.The decline of fertility caused by high yield has become the bottleneck of the development of dairy industry in China and even in the world.In dairy farming,there are many factors that cause the reduction of reproductive performance of high-yield dairy cows,including genetic factors,environmental factors and disease factors.Recently,the influence of disease factors on reproductive performance of dairy cows has become more and more prominent.According to the location of the disease,the diseases can be divided into genital diseases and non-genital diseases.This paper discussed the relevant research data on the effects of different diseases on the reproductive performance of dairy cows in recent years,and focusing on the analysis of the molecular mechanism of diseases affecting the reproductive performance of dairy cows through the nervous system,reproductive endocrine system and humoral immune system.The prospect and thinking for the future research of diseases and reproductive performance of high-yield dairy cows were put forward to provide reference and theoretical basis for improving the reproductive efficiency and economic benefits of high-yield dairy cows in China. 相似文献
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过去二十多年，随着奶牛群体遗传改良计划的持续推进和养殖技术的不断进步，中国奶牛集约化养殖水平和产奶量正在不断提高。但是，历年来的繁育数据显示，越是高产的牛群，繁殖性能下降的趋势越明显，繁殖问题越突出，高产引发的繁殖力下降已经成为制约中国乃至全球奶业发展的瓶颈。低繁殖力会严重影响奶牛生产群的更新速度以及优质牛群泌乳性能的正常发挥。奶牛养殖生产中，造成高产奶牛繁殖性能降低的因素众多，包括遗传因素、环境因素和疾病因素等。近年来，疾病因素对奶牛繁殖性能的影响越来越突出。根据疾病的发生部位，可将影响高产奶牛的疾病分为生殖器官疾病和非生殖器官疾病。作者详细介绍了近年来国内外不同疾病对奶牛繁殖性能影响的相关研究资料，重点分析了疾病通过神经系统、生殖内分泌系统和体液免疫系统等多个途径影响奶牛繁殖性能的分子机制，并对疾病与高产奶牛繁殖性能今后研究的方向提出了展望和思考，以期为提高中国高产奶牛群繁殖效率和经济效益提供一定的借鉴和理论依据。 相似文献
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Lorenzo Crosta Helga Gerlach Marcellus Bürkle Linda Timossi 《Veterinary Clinics of North America: Exotic Animal Practice》2003,6(1):57-83
Disorders of the reproductive system represent a large portion of both large and small domestic animal medicine. Although some disorders of this system have been extensively studied in birds, this science is still in its infancy, when compared to mammalian reproductive medicine. This may be due to several reasons, but the simple fact that birds are oviparous renders knowledge of mammalian reproductive anatomy, histology, physiology, and disease process, inapplicable to avian patients. Nevertheless, several specific diseases or conditions affecting the reproductive system of birds have been described. By integrating information about the comparative anatomy and physiology of birds, reports of the most common reproductive diseases of birds and utilizing the latest diagnostic techniques, especially videoendoscopy, the avian practitioner should be able to diagnose and properly treat a high percentage of the avian reproductive diseases. 相似文献
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