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近年来,特别是2003年以来,因猪价格上涨,各地兴起了一轮又一轮的“养猪热”。在广大农村,养猪已成为农民发家致富的主要项目,很多农户新建圈舍,过去已改行的养猪户,又重操旧业养起了猪。笔者从事畜牧兽医工作多年,特别是近年来参与了规模化养猪场的饲养管理和保健工作,目睹了多家养猪场的经营管理情况,有的养猪场由于科学规范的管理使猪场不断发展壮大,有的养猪场由于管理不善造成破产倒闭。根据对农村养猪专业户的调查和他们对养猪技术的渴求,笔者特制定“规模化猪场饲养管理技术操作规程”,以供养猪生产者参考。 相似文献
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就新建中小型养猪场的选址布局、生产管理、防疫设施的设计,以及涉及生猪防疫的免疫、消毒、病死猪无害化处理等项工作的技术要点进行阐述。多年来的指导实践表明,新建养猪场按本文所述要点进行筹建并启动实施,可在最短的时间内建成投入使用,有效地保障了养猪场生产经营的顺利进行。 相似文献
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由于多种因素,一些集约化规模化养猪场常出现母猪不发情现象,这样就降低了母猪的利用率,增加了生产成本,对养猪业也是一个较大的经济损失,在正常的饲养管理条件下,应用外源性激素、应激等措施进行催情已成为国内养猪场所采取的良好对策。 相似文献
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张建鹏 《国外畜牧学(猪与禽)》2019,39(12)
本文分别从猪场的封闭管理、养猪场消毒工作的落实、提供适宜的环境、加强学习以及及时报告疫情几个方面就中小养猪场对非洲猪瘟的防控措施进行具体的介绍,希望能够为养猪场提供参考以及借鉴。 相似文献
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加强规模化猪场管理做好疫病防治工作 总被引:1,自引:0,他引:1
随着养猪场规模化程度不断提高,场内的环境卫生有很大改善,科学饲养管理技术得到广泛应用,养猪生产的经济效益有了明显提高。同时,规模化养猪场的疫病种类和流行特点也发生了很大变化。因此,如何做好规模养猪场的疫病防治至关重要。 相似文献
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大力发展股份制养猪场我市在人民公社化期间,几乎村村都办起了集体养猪场。由于采取“大锅饭”的管理形式,经济效益差,所以农村实行“家庭联户”承包责任制以后,集体养猪场全部下马,养猪业重新变成了一家一户的家庭副业。但是,随着农村股份合作制的兴起。各种形式的... 相似文献
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吴长明 《畜牧兽医科技信息》2019,(3):104-104
母猪作为一个养猪场的核心,其饲养管理的好坏关系到整个养猪场的经济效益情况。母猪可分为空怀期母猪、妊娠期母猪和哺乳期母猪。母猪在每一阶段对营养物质的需求以及对饲养管理要求不同,因此,需要分阶段有针对性的进行饲养管理,以提高母猪的生产性能。 相似文献
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《养殖与饲料.饲料世界》2013,(11):62-62
1)国家对发展畜牧业用地、用水、用电方面的优惠。首先,在用地方面,政策规定,国土资源管理部门要合理安排畜牧业生产用地,将规模养猪场(小区)生产和管理设施、附属建筑物视为农业用地,并纳入当地土地利用总体规划优先安排。其次,在用水方面,水利部门对规模养猪场(小区)用水免收地下水资源费。再次,在用电方面,电力部门对畜禽养殖用电执行农业生产电价。 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: Clinical experiences indicate that centesis of the lateral compartment of the femorotibial joint is often unsuccessful. Objective: To determine the accuracy of 2 published and 2 unpublished techniques of centesis of the lateral compartment of the femorotibial joint. Hypothesis: It was hypothesised that a drug can be administered into the lateral compartment of the femorotibial joint via a diverticulum of this joint that surrounds the medial aspect of the long digital extensor tendon and that this technique is more accurate than described techniques of centesis of this compartment. Methods: Twenty‐four stifles of 12 horses were divided equally into 4 groups and a radiocontrast medium injected into the lateral compartment of the femorotibial joint of each group using a hypodermic needle inserted: 1) caudal to the lateral patellar ligament and proximal to the tibial plateau, 2) caudal to the long digital extensor tendon and proximal to the tibial plateau, 3) between the long digital extensor tendon and bone of the extensor groove of the tibia or 4) directly through the long digital extensor tendon until it contacted bone. Twelve veterinary students who had no experience using any of these techniques performed the injections. Accuracy of each technique was determined by examining radiographs obtained after injecting the contrast medium. Results: The most successful technique for arthrocentesis was by inserting a needle through the long digital extensor tendon. This approach was successful in all attempted cases, whilst other techniques had lower rates of success. Conclusions: The lateral compartment of the femorotibial joint can be accessed accurately by inserting a needle through the long digital extensor tendon as it lies within the extensor groove. Other techniques may not be as accurate for clinicians inexperienced in arthrocentesis of the lateral compartment of the femorotibial joint. 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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Marioni-Henry K Vite CH Newton AL Van Winkle TJ 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2004,18(6):851-858
A retrospective review of records of 205 cats with histologically confirmed disease of the spinal cord was performed to identify the prevalence of disease in this nonrandomly selected population of cats. Clinical records were reviewed, and age, duration of neurologic illness, and clinical and histopathologic findings in cats with spinal cord disease were abstracted. Disease processes were classified into 7 categories and 23 groups. The most common diseases affecting the spinal cord of cats were feline infectious peritonitis (FIP), lymphosarcoma (LSA), and neoplasia of the vertebral column secondarily affecting the spinal cord. Information on age, onset and duration of clinical signs, and lesion localization at the postmortem examination in cats belonging to the 7 categories of disease were analyzed to create a practical list of differential diagnoses. Cats were also subcategorized into 3 groups based on their age at death. FIP was the most common disease of cats younger than 2 years of age. LSA and vertebral column neoplasia were the most common diseases affecting cats between 2 and 8 years of age. Vertebral column neoplasia was the most common disease affecting cats older than 8 years of age. Results of this histopathologic study showed that FIP and LSA were the most common disease processes affecting the spinal cord of cats. However, at least 21 other groups of diseases and their relative prevalence were identified. 相似文献
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根据JJF1059-1999《测量不确定度评定与表示》建立了高效液相色谱法测定鸡肉中土霉素残留测量的不确定度评定方法,评定过程包括建立测量程序、分析不确定度来源、对不确定度分量进行量化。将不确定度归类为两大类。随机效应导致的不确定度可以通过一系列具有统计意义的重复观测值进行A类评定;系统效应导致的不确定度通过各测量器具、设备的说明书、校准证书提供的参数进行B类评定。本方法鸡肉中土霉素残留量的相对合成标准不确定度约为3.9%。 相似文献
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以5个金柑属品种、枳壳、软枝酸橘及广西土柠檬实生苗为材料,进行复水成活率、旱害指数、叶片相对含水量、超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)、丙二醛(MDA)、脯氨酸等生理指标及隶属函数的综合分析,为柑橘抗性砧木品种选育提供参考。结果表明:胁迫20d复水后的成活率融安滑皮金柑和长寿金柑最高,为100%,软枝酸橘最低,为88.9%;随着干旱胁迫加剧,各品种的旱害指数呈上升趋势,长寿金柑的旱害指数最低,为0.25,软枝酸橘的旱害指数最高,为0.61;从叶片相对含水量的结果来看,长寿金柑的变化幅度最小,软枝酸橘的变化幅度最大,在第18d时分别为61.19%和37.85%;3种保护酶之间相互协同作用减轻植株受害程度,其活性变化幅度与丙二醛和脯氨酸的含量变化相似。利用隶属函数法综合分析,得出各品种的抗旱性强弱依次为长寿金柑>枳壳>融安滑皮金柑>融安金柑>山金柑>广西土柠檬>金枣>软枝酸橘。 相似文献
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应用光镜和透射电镜技术,观察了3~6月龄比格犬甲状腺的显微和超微结构。结果表明,比格犬甲状腺实质由滤泡和滤泡旁细胞构成。滤泡呈圆形或椭圆形,直径20.22~220.00μm,平均90.80μm;由单层立方上皮细胞围成,细胞高度3.04~7.11μm,平均5.18μm,电镜下可见功能状态不同的两型滤泡上皮细胞;滤泡旁细胞很多,直径4.40~8.82μm,平均6.23μm,位于滤泡之间或镶嵌于滤泡上皮细胞之间,也可聚集在一起形成滤泡样结构,胞质内含有大量的分泌颗粒,电镜下也可见两种类型的滤泡旁细胞。 相似文献