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<正>能繁母猪是养猪场的生产机器,是养猪场的核心。提高能繁母猪(以下简称母猪)生产能力、充分发挥其生产潜能是每个养猪场、养猪户必须高度重视的一环,母猪生产水平高低也是衡量该猪场、养殖户生产管理水平高低、经济效益好坏的重要指标。 相似文献
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为有效保护能繁母猪生产能力,促进生猪产业平稳健康发展,国家发布了能繁母猪饲养补贴政策。为推动生猪生产健康发展,推进生猪规模养殖比重,应认真落实这项政策。纳入补贴范围的能繁母猪是指产过一胎仔猪、能继续繁殖仔猪的母猪,又称成年母猪或基础母猪。要结合能繁母猪核查,逐步建立健 相似文献
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颜卓友 《广东畜牧兽医科技》2009,34(2):48-49
能繁母猪保险是国家出台的一项政策性保险,对稳定生猪生产具有积极作用,但目前还存在一些不科学不完善的地方,制约了能繁母猪保险事业的健康发展及其功能的全面发挥。本文通过回顾一年来能繁母猪保险工作情况,分析存在问题,提出了进一步完善能繁母猪政策的对策和建议。 相似文献
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《中国畜牧兽医文摘》2015,(1)
<正>母猪子宫内膜炎是临床常见的产科疾病,是指子宫黏膜及黏膜下层的一种急性或慢性炎症。在农村母猪养殖户和能繁母猪养殖场中该病常见多发,也是母猪屡配不孕的重要原因之一,并严重影响着母猪的生产能力和使用年限,也给母猪养殖户和能繁母猪养殖场带来巨大的经济损失。通过近几年对基层养殖场的技术指导实践,积累了一些经验,本文加以介绍,与读者分享。1病因分析(1)配种人员责任心不强,配种时器械消毒不严,或操作不 相似文献
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为落实国家能繁母猪保险政策.河北省滦县专门召开能繁母猪保险工作会议,并在全县各镇组织开展能繁母猪养殖情况调查统计工作。畜牧水产局积极参与能繁母猪的统计、审核及公示工作,制定了“能繁母猪死亡认定程序”。同时,明确能繁母猪必须配有能识别猪只身份的统一标识。 相似文献
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巴彦县现有能繁母猪13万头,后备母猪6万多头。母猪的生产能力强弱,直接影响生猪养殖效益。母猪的生产力是指每头母猪年提供断奶仔猪的能力。只有提高母猪繁殖力,才可以为后期肥猪的饲养管理打好基础。制约母猪生产力的因素很多,关键控制点有以下几个方面: 相似文献
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Meschan EM Peham C Schobesberger H Licka TF 《Veterinary journal (London, England : 1997)》2007,173(3):578-584
As there is no statistical evidence that saddle fit influences the load exerted on a horse's back, this study was performed to assess the hypothesis that the width of the tree significantly alters the pressure distribution on the back beneath the saddle. Nineteen sound horses were ridden at walk and trot on a treadmill with three saddles differing only in tree width. Kinetic data were recorded by a sensor mat. A minimum of 14 motion cycles were used in each trial. The saddles were classified into four groups depending on fit. For each horse, the saddle with the lowest overall force (LOF) was determined. Saddles were classified as "too-narrow" if they were one size (2 cm) narrower than the LOF saddle, and "too-wide" if they were one size (2 cm) wider than the LOF saddle. Saddles two sizes wider than LOF saddles were classified as "very-wide". In the group of narrow saddles, the pressure in the caudal third (walk 0.63 N/cm(2)+/-0.10; trot 1.08 N/cm(2)+/-0.26) was significantly higher compared to the LOF saddles (walk 0.50 N/cm(2)+/-0.09; trot 0.86 N/cm(2)+/-0.28). In the middle transversal third, the pressure of the wide saddles (walk 0.73 N/cm(2)+/-0.06; trot 1.52 N/cm(2)+/-0.19) and very-wide saddles (walk 0.77 N/cm(2)+/-0.06; trot 1.57 N/cm(2)+/-0.19) was significantly higher compared to LOF saddles (walk 0.65 N/cm(2)+/-0.10/ 0.63 N/cm(2)+/-0.11; trot 1.33 N/cm(2)+/-0.22/1.27 N/cm(2)+/-0.20). This study demonstrates that the load under poorly fitting saddles is distributed over a smaller area than under properly fitting saddles, leading to potentially harmful pressures peaks. 相似文献
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M. Masko M. Domino K. Skierbiszewska Ł. Zdrojkowski T. Jasinski Z. Gajewski 《Equine Veterinary Education》2020,32(12):654-663
Complications in late gestation are challenging problems for the equine clinician and are causes of considerable distress to owners. Health problems in a pregnant mare in each stage of gestation can adversely affect the pregnancy. It is important to obtain a thorough history and perform a detailed and systematic examination of the pregnant mare so that the mare may be classified as normal or high-risk. However, even after a thorough examination, practitioners may face problems with the interpretation and assessment of risk. Normal mares should foal in the stable or pasture. Mares classified as having a high-risk pregnancy need to be monitored precisely for signs of oncoming foaling with attendance of trained personnel when labour begins. A valuable method for monitoring of the high-risk mare is assessing fetoplacental well-being. Fetoplacental well-being is most accurately assessed with ultrasonography as well as several available hormone profiles. We are proposing our scoring system of the mare's health, which may be useful in the assessment of risk during pregnancy and help clinicians to decide whether sending the mare to the clinic is reasonable or unnecessary. 相似文献
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Webbon P 《Equine veterinary journal》2012,44(1):8-12
The understanding and application of genetics have grown extremely quickly since it has become possible to sequence the whole genome of an organism. The human genome sequence was completed in 2001 and that of the horse in 2007. The significance of this is that it makes it more feasible to explain how both genetically simple and complex traits are transmitted from one generation to the next and, therefore, to make informed breeding decisions, modify how horses are managed and trained to minimise the risk of disease and injury, and improve methods of prevention, diagnosis and treatment of many conditions. The science of genetics/genomics will continue to grow internationally, limited only by the funds available. The application of the science to man, horses and other species raises very complex moral and commercial issues. Thoroughbred breeders are perceived by some as resistant to change, but their apparent intransigence is often based on a genuine concern for the integrity of the breed. By taking control of the application of the advances in genetics, the Thoroughbred industry potentially has the opportunity to improve both the health and performance of Thoroughbreds. If, however, the science is applied in an uncoordinated manner, driven by commercial interests with no underlying concern for the horses themselves, there is a very real risk that breeders, the Thoroughbred breed and individual horses will all suffer as a consequence. 相似文献
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为了找出支配鸡胆囊交感节后神经元的分布规律,选用体重1.5 kg~2.5 kg的成年母鸡6只,将CT-HRP溶液注入胆囊壁,动物存活3 d~4 d后,经左心室灌流固定,取内脏神经节、肾上腺神经节以及双侧胸、腰和荐段交感干神经节,制成50 μm的连续冰冻切片,TMB法呈色反应,置明视野显微镜下观片统计.结果发现,支配鸡胆囊的交感传出神经元胞体位于内脏神经节(占41.1%)、肾上腺神经节(占40.5%)和T2~T7交感干神经节(占18.4%),在交感干神经节中标记细胞的峰值位于T5、T6交感干神经节.所有的标记细胞以位于右侧的占优势. 相似文献
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犊牛腹泻与肠道菌群的变化 总被引:1,自引:0,他引:1
本文检测腹泻犊牛的直肠内8种主要正常菌群的变化,并与健康犊牛进行对比。结果发现,犊牛腹泻时,大肠杆菌、双岐杆菌和乳杆菌变化较大,而其它菌群变化较小。腹泻或将腹泻时,大肠杆菌数增加,双岐杆菌和乳杆菌数下降。腹泻康复或即将康复时,大肠杆菌减少,双岐杆菌、乳杆菌数增加。 相似文献
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试验选择陕北白绒山羊繁育中心羊场的成年健康母羊(怀孕前期)16只,育成母羊13只,育成公羊13只,空腹称重。测定每只羊1d的采食量,计算其摄入的营养成分含量,并与原苏联绒用山羊饲养标准比较,进行饲养水平评价。结果显示,与饲养标准比较,陕北白绒山羊繁育中心羊场的育成母羊代谢能高2.68MJ,粗蛋白低59.29g,钙低3.00g,磷低1.52g;育成公羊代谢能高3.47MJ,粗蛋白低81.92g,钙低4.42g,磷低2.62g;成年母羊代谢能高2.51MJ,粗蛋白低91.33g,钙低3.09g,磷低1.93g。结合羊的体况综合评价饲养水平基本合理,但尚需要按饲养标准增加粗蛋白、钙、磷等营养物质的供给量。 相似文献