中西医结合治疗奶牛子宫内膜炎效果分析

对陕西陇县3个奶牛场4个奶牛小区共652头成年奶牛进行临床疾病调查。结果表明：生殖系统疾病患牛所占比例最高，达46．4％，其中28头奶牛确诊患子宫内膜炎，占生殖系统疾病患牛的62.2％；同时，采用前期处理、子宫冲冼、子宫灌注、中药内服、西药全身治疗等中西医结合疗法对28头子宫内膜炎患牛进行治疗，平均治愈率达8913％。该疗法为防治奶牛子宫内膜炎提供了较佳的治疗方案和给药途径，具有广泛的推广应用价值。     

奶牛乳房炎及子宫内膜炎诊治

近十多年来,我国奶牛养殖业有了长足的发展,但奶牛生殖系统疾病严重影响产奶量,造成奶牛养殖户不必要的损失。奶牛生殖系统疾病的种类很多,目前多发及对畜牧业影响较大的生殖系统疾病有:奶牛乳房炎、流产、子宫内膜炎、卵巢囊肿、持久黄体等,特别是奶牛乳房炎及子宫内膜炎对奶业有严重影响,本文就此两种疾病进行分析。     

奶牛生殖系统疾病治疗

<正>近年来,随着奶产业的不断壮大,奶牛生殖系统疾病呈上升趋势。生殖系统疾病包括奶牛乳房炎、流产、子宫内膜炎、卵巢囊肿及持久黄体。由于生殖系统与其他内脏器官具有密切关联,因此,生殖系统疾病同时影响奶牛生产的健康发展,给养殖户造成很大的损失。所以,有效防治奶牛生殖系统疾病对发展奶产业     

奶牛疾病型不孕症的病因与防治

奶牛不孕症可直接影响奶牛饲养的经济效益,本文对奶牛生殖系统患有不同类型疾病的病因,治疗及防治措施分别做了详细的论述.     

奶牛不育治疗效果观察

我站冻精配种点,对上站的临夏城郊的奶牛不育,进行了诊断治疗和调查研究。现根据1978——1980年冻精配种工作中,对奶牛不育的诊断治疗资料整理报告于后。一、资料统计三年授配奶牛173头,其中患生殖系统疾病而不育的有35头,占配种奶牛的20.23％。在35头病牛中,患子宫炎的牛最多,共有18     

奶牛生殖系统疾病的治疗

奶牛生殖系统疾病的种类很多，目前多发及对畜牧业生产影响较大的生殖系统疾病有：奶牛乳房炎、子宫内膜炎等。     

奶牛不孕症病因及防治措施

奶牛不孕症是指奶牛短暂性或长期性不能正常发情、配种,导致养殖场奶牛的利用效率低下,奶牛繁殖能力下降。对于集约化、规模化奶牛养殖场,不孕症是影响养殖场经济效益的主要生殖系统疾病。该疾病不但常发且难治愈,常会引发一系列生理疾病,有时还会危害奶牛的产奶量。因此,做好该种疾病的诊断防治工作十分重要。在对患不孕症的奶牛进行对症治疗时,一定要明确致病原因,然后选择针对性方法进行治疗,以提高治疗效果。该文结合一起实际病例分析奶牛不孕症的发病原因和防治措施。     

奶牛子宫内膜炎的诊断和防治

随着现代养牛业的发展,奶牛饲养密度大大增加,但是对疫病的抵抗力却在不断下降。奶牛子宫内膜炎是奶牛常见的生殖系统疾病,病原有多种致病菌,主要威胁奶牛发情、配种和受胎。本文分析了奶牛子宫内膜炎的病因和临床症状,指出诊断方法和防治措施,以期缓解奶牛子宫内膜炎对奶牛自身和养殖场(户)造成的威胁,为保障奶牛生殖系统健康提供理论依据。     

延长产犊间隔将影响奶牛产奶量

<正>在生产中,一些养殖者往往在奶牛产后72～93天内,由于发情鉴定不准和牛患生殖系统疾病不能及时治愈,造成奶牛不能及时受孕,使产犊间隔超过12个月,进而产奶天数也随之向后推迟,超过     

奶牛肢蹄病的病因及防治

肢蹄病是奶牛的主要疾病之一．与乳房炎和生殖系统疾病共同构成奶牛饲养业的三大制约因素．肢蹄病是指动物机体骨质疏松造成的四肢变形及各种不良因素引起的蹄变形、腐蹄病（蹄间或蹄腐烂）、蹄叶炎等疾病的总称。发病率一般为30％-40％．奶牛患肢蹄病时,表现为：轻者行走困难,跛行,重者卧地不起,产奶量大幅下降,     

癸氧喹酯干混悬剂含量测定的改进

采用高效液相色谱法测定癸氧喹酯干混悬剂的含量,在2-250μg/mL范围内,峰面积的常用对数与进样量浓度的常用对数呈良好的线性关系,R^2=1(n=5),平均回收率为99.24%~99.51%,RSD在0.05%~0.28%。此方法分析时间短,样品前处理简便、定量结果准确,重现性好,结果满意,为其质量控制提供了依据。     

猪毛色遗传的研究进展

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。     

商会自治的基石——商会自治规范研究

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。     

Effects of size of ingestively masticated fragments of plant tissues on kinetics of digestion of NDF

Ingestively masticated fragments were collected and sized via sieving. Different sizes of esophageal masticate and ruminal digesta fragments, and ground fragments of larger masticated pieces were incubated in vitro, and undigested NDF remaining at intervals of up to 168 h of incubation was determined. The ruminal age-dependent time delay (tau) for onset of digestion of NDF was positively correlated (P < 0.004) with the mean sieve aperture estimated to retain 50% of the fragments between successive sieve apertures (MRA). Degradation rate of potentially degradable NDF (PDF) and level of indigestible NDF were not related (P > 0.10) to MRA of masticated and ground fragments. Estimates of tau were positively related to MRA, with slopes of bermudagrass < corn silage < ruminal fragments of corn silage. It was concluded that fragment size-, and consequently, ruminal age-dependent onset of PDF degradation of a mixture of different fragment sizes results in an age-dependent rate of degradation of the more rapidly degrading of two subentities of PDF. Models are proposed that assume a tau before onset of simultaneous degradation of PDF from two pools characterized as having gamma-modeled age-dependency and age-constant rates. The ruminal age-dependent pool seems to be associated with the faster-degrading pool, and its rate parameter increases with range in MRA in the population of fragments. Conceptually, the ruminal age-dependent rate parameter for PDF degradation seems to represent a composite of several effects: 1) effects of the size-dependent tau; 2) range in MRA of the population of ingestively masticated fragments; and 3) subentities of PDF that degrade via more rapid age-dependent rates compared with subentities of PDF that degrade via age-constant rates. The estimated fractional rates of ruminative comminution of ingestively masticated fragments (0.060 to 0.075/h) were of a magnitude similar to the mean fractional rates of PDF digestion (0.030 to 0.085/h), which implies that ruminative comminution may be first-limiting to fractional rate of PDF digestion. The in vivo roles of ingestive and ruminative mastication of fragments on PDF degradation must be considered in any kinetic system for estimating PDF digestion in the rumen. These results and others in the literature suggest that the rate of surface area exposure rather than intrinsic chemical attributes of PDF may be first-limiting to degradation rate of PDF in vivo.     

中华人民共和国农业部公告 第267号

为贯彻落实《兽药生产质量管理规范》(简称《兽药GMP》),进一步推动兽药GMP实施进程,我部制定了《兽药生产质量管理规范检查验收办法》,现予公告。本公告自2003年6月1日起施行。附件:兽药生产质量管理规范检查验收办法二○○三年四月十日第一章 总则 第一条 为推动《兽药生产质量管理规范》(以下简称兽药GMP)的实施,规范兽药GMP检查验收工作,制定本办法。 第二条 农业部负责全国兽药GMP管理和检查验收工作;负责制修订兽药GMP检查验收管理规定;负责兽药GMP检查员队伍建设和监督管理工作,负责国际兽药贸易中GMP互认工作。 …     

鸡败血支原体垂直传播模式及其阻断方法

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。     

Mechanism of Action of Probiotic Function of Lactobacilli

乳酸杆菌作为益生菌广泛用于人和动物.本文综述了乳酸杆菌改善宿主健康的机制.乳酸杆菌可通过产生抗菌物质如乳酸、过氧化氢、细菌素,或者通过竞争营养或肠道黏附位点来抑制致病菌;通过诱导黏附素的分泌或阻止细胞凋亡而增强肠道的屏障功能,从而保护肠道.文章重点讨论了乳酸杆菌表面成分(表面蛋白、脂磷壁酸和肽聚糖)与肠道受体(C型凝集素受体、Toll样受体和Nod样受体),阐述了他们结合后启动免疫调节信号,调控肠道免疫功能以发挥改善健康作用的机制.     

獭兔睾丸的组织学观察

家兔作为一种实验动物 ,推动了繁殖技术的发展。本试验通过对不同年龄公獭兔的睾丸进行组织学观察、测定 ,研究精子的发生规律 ,为系统地进行繁殖生理工作提供依据。1　材料与方法选 60日龄、75日龄、90日龄 3个年龄公獭兔各5只 ,用外科手术法摘取两侧睾丸 ,放入 Bouin氏液中固定 ,二甲苯透明 ,石蜡包埋 ,切成 5～ 8μm切片 ,H.E.染色。在显微镜下观察 ,并进行定量组织学指标测定及差异性比较。2　结果和讨论2 .1　睾丸定量组织学指标的测定结果　见表 1。表 1　獭兔睾丸定量组织学指标　　　μm,个 /精细管60日龄 75日龄 90日龄曲细精管…     

Observations of fracture of the anconeal process of the ulna of swine

Fractures of the anconeal process of 5 pigs ranging in age from 4 to 8 months were studied radiographically and histologically. Clinically, animals with a fracture of the anconeal process had a "tight," restricted gait. In pigs at 4.5 months of age, a radiolucent line through the base of the anconeal process was composed of fibrocartilage, fibrous connective tissue, and hyaline cartilage. Subperiosteal proliferation of woven bone was located along the cranial surface of the olecranon, adjacent to the base of the anconeal process. In older animals, the radiolucent line through the anconeal process contained variable amounts of fibrous connective tissue and fibrocartilage. The proliferation of subperiosteal bone at the base of the anconeal process formed a "buttress callus" which retained a radiolucent area between the callus and the proximal surface of the anconeal process. The latter region of radiolucency was continuous with the transversely oriented line that traversed the base of the anconeal process.