头孢拉定对鸡大肠杆菌病的疗效试验

大肠杆菌病是由致病性大肠杆菌引起的一种常见多发病，根据发病的年龄、侵害部位以及与其它疾病混合感染的不同情况而表现为不同的病型．临床常见的有以下几种：雏鸡脐炎、急性败血症、纤维素性心包炎、纤维素性肝周炎、腹膜炎、气囊炎、全眼球炎。     

头孢拉定对鸡大肠杆菌病的疗效试验

采用试管二倍稀释法测定头孢拉定对鸡大肠杆菌的最小抑菌浓度 (MIC) ,并进行了高、中、低剂量的临床疗效试验 ,结果表明 :头孢拉定对鸡大肠杆菌标准株、分离株的最小抑菌浓度分别为 2～4mg/L、0 5～ 32mg/L ;质量分数为 30 0× 1 0 - 6的头孢拉定饮水时 ,可完全控制鸡大肠杆菌病发生 ,质量分数为 1 0 0～ 2 0 0× 1 0 - 6时 ,有较好的治疗作用     

中兽医治疗母猪产后尿闭的疗效观察

在某养殖场母猪圈分娩母猪中随机挑选40头发生产后尿闭的母猪,采用挤压、导尿常规中兽医方法配合中药汤剂进行治疗,统计治疗总有效率。结果显示,本组40头产后尿闭母猪经中兽医治疗后,治愈31头,有效7头,无效2头,治疗总有效率为95.0%。中兽医治疗母猪产后尿闭疗效显著,母猪体质得到明显改善,值得在母猪产后疾病治疗中推广使用。     

应用FSH 等药物对后备及乏情母猪的疗效试验

摘要：本文应用FSH (促卵泡生成素)等药物对后备母猪和乏情母猪进行疗效试验。结果发现,后备母猪的FSH组和PMSG (孕马血清)组发情率分别为65.39%和66.67%,两组相比无显著性差异(P>0.05);配种受胎率分别为82.35%和78.57%,两组相比差异显著(P<0.05);窝均产仔数分别为10.94头和9.14头,两组相比差异显著(P<0.05);对照组母猪的发情率、配种受胎率和窝均产仔数均不理想。对断奶30 d不发情的乏情母猪,FSH组和PMSG组发情率分别为85.71%和86.96%,两组相比无显著性差异(P>0.05);配种率受胎分别为86.67%和80%,两组相比差异显著(P<0.05);窝均产仔数分别为11.46头和10.06头,两组相比差异显著(P<0.05);对照组母猪的发情率、配种受胎率和窝均产仔数均不理想。表明FSH组和PMSG组对后备母猪、乏情母猪疗效显著,且FSH组优于PMSG组。     

改善母猪产后泌乳性能的药物试验

本研究比较不同药物治疗母猪产后无乳或少乳症的效果。试验结果表明，“母猪增乳注射剂”是一种效果快而稳定的母猪产后增乳注射剂，注射后4-12小时产生增乳效果，有效率80%左右。     

中兽医治疗母猪产后尿闭的效果探究

目的:在分析母猪产后尿闭症状、病因的基础上,采取中兽医治疗方法,并评价治疗效果。方法:将2015年1月~2016年1月收治的母猪产后尿闭38例纳入研究,分析病猪症状及病因,进一步采取中兽医治疗方法,并评价治疗效果。结果:本次纳入研究的38例产后尿闭母猪,经中兽医治疗方案积极治疗,结果显示:治愈36例,产后尿闭症状完全消除,产后恢复效果优良,治愈率为94.74%;其余2例产后尿闭症状有所改善,经进一步治疗治愈。结论:在明确母猪产后尿闭症状及病因的基础上,实施中兽医治疗方法疗效显著,值得采纳应用。     

头孢拉定在鸡大肠杆菌病治疗中的应用

本文主要对头孢拉定运用于鸡大肠杆菌病治疗中的有效性进行探讨,旨在为鸡大肠杆菌病的治疗提供最佳方案。     

乳炎康对母猪乳房炎的疗效试验

本试验选择具有抗菌消炎的中药乳炎康对哺乳母猪进行治疗试验,力求探索出一种新型的高效低毒的中药制剂,在临床上推广使用。试验表明,乳炎康治疗母畜乳房炎效果良好,治愈率达到96.67%(P0.05)。     

母猪产后疾病中兽医治疗的临床研究

目的:观察中兽医治疗母猪产后疾病的效果。方法:选择某养猪场2016.4～2017.8期间30只患有产后疾病的母猪,均给予中兽医治疗,观察并统计疗效。结果:治疗后,母猪主要症状均有不同程度改善,治疗总有效率为93.3%。结论:中兽医疗法用于治疗母猪产后疾病,有助于改善病猪症状,优化疗效,值得推广。     

头孢拉定运用于家鸡大肠杆菌病治疗中的有效性

本文主要对头孢拉定运用于家鸡大肠杆菌病治疗中的有效性进行探讨,旨在为家鸡大肠杆菌病的治疗提供最佳方案。     

母猪产后药物处理子宫提高发情与受胎试验

母猪分娩后子宫感染疾病直接影响着仔猪断奶后该母猪的发情与受胎。正常情况下,经产母猪断奶后7天左右即发情、配种受孕,但在平时的工作中,我们常发现部分母猪、特别是引进的纯种母猪,在仔猪离乳后不及时发情、迟迟不发情或虽发情但屡配不孕。为了减少这一现象的发生,缩短胎间距,提高受胎率,我们在加强饲养管理、保证正常膘情的基础上,对产后母猪进行药物处理子宫试验,观察其对断奶后的发情及受胎的影响。     

Effects of Feed in the Dry Period on Fertility of Dairy Cows Post Partum

It has been hypothesized that the decrease in fertility of dairy cows is related to the increase in milk yield and associated with fatty liver and increased vulnerability for both infection and metabolic diseases. To elucidate the mechanisms behind this complex of health and reproductive problems an Animal Model, based on overfeeding in the dry period, has been developed. In an experiment carried out in 1996 sixteen animals were fed 119 MJ/d net energy to lactation (NEL) (experimental group) and another sixteen just 49 MJ/d NEL (control group) in the last 8 weeks before parturition. During lactation the cows from both groups were given the lactation ration ad libitum. After parturition both groups differed significantly in level and duration of the NEB, in weight loss, increased concentrations of NEFAs and bHBB in the blood and TAG in the liver. Although the insulin level was lower in the experimental animals during the first week, the difference was not significant. The number of ovulations within the first 100 days pp was significant lower in the experimental group and was related to depth and duration of the NEB and the weight loss: more NEB leads to less ovulations. The interval partus-le ovulation was also significant different but related to the TAG level in the liver: more TAG leads to a longer interval. The experimental group with the fatty liver suffered more incidenses of metabolic diseases. It has been concluded that the Model leads to a severe NEB, to Fatty Liver and to more incidences of diseases. Both the NEB and the fatty liver influence the fertility of the cows pp and it can not be excluded that some diseases have an effect too. More studies are planned to unravel the factors that affect the fertility of high yielding cows.     

母猪产后不食的诊治

母猪产后不食是由于产后消化系统紊乱，食欲减退所致。该症不是一种独立的疾病，而是由多种因素引起的一种临床症状表现。笔者经过多年的临床实践，对该症取得了较好的治疗效果，现将诊治方法总结如下。     

产后健康奶牛子宫内细菌动态变化规律的研究

对4个不同奶牛场20头产后健康状况良好的奶牛每头奶牛采样器采集子宫样品,通过细菌培养、分离、鉴定等常规方法,对其子宫内细菌的动态变化规律进行了研究,以探讨产后健康奶牛子宫内细菌的动态变化规律及不同奶牛场之间的比较差异.结果表明,本试验还对产后不同阶段所分离到的细菌的种类和数量进行了详细的比较分析,在产后第2天,子宫内呈污染状态,细菌数量迅速增加,四组试验的计数结果分别达到了8.34×105、2.15×105、1.90×105、2.97×105,此后细菌数量呈缓慢增长趋势,在产后第8天时子宫内细菌计数达到最高,四组试验技术结果的平均数分别为:4.25×107、4.01×107、3.95×107、3.05×107.     

产后健康奶牛子宫内细菌动态变化规律的研究

对4个不同奶牛场20头产后健康状况良好的奶牛每头奶牛采样器采集子宫样品,通过细菌培养、分离、鉴定等常规方法,对其子宫内细菌的动态变化规律进行了研究,以探讨产后健康奶牛子宫内细菌的动态变化规律及不同奶牛场之间的比较差异。结果表明,本试验还对产后不同阶段所分离到的细菌的种类和数量进行了详细的比较分析,在产后第2天,子宫内呈污染状态,细菌数量迅速增加,四组试验的计数结果分别达到了8.34×105、2.15×105、1.90×105、2.97×105,此后细菌数量呈缓慢增长趋势,在产后第8天时子宫内细菌计数达到最高,四组试验技术结果的平均数分别为:4.25×107、4.01×107、3.95×107、3.05×107。     

Histology of the Post Partum Equine Uterus as Determined by Endometrial Biopsies

Altogether 156 equine endometrial biopsies were carried out during the post partum (p.p.) period: immediately after parturition until 15 days after foaling. The histological changes are described.The rapid restoration of the equine endometrium is remarkable. The destruction of the luminal epithelium is minor and regeneration takes place rapidly. Remnants of the placenta, the microcotyledons and desquamated cells, have disappeared by 5 p.p. The transformation of glands from a pronounced secretory pattern to normal appearance also takes only 5 days. The occurrence of neutrophils and lymphocytes is normally connected with the restoration of the endometrium and should not always be interpreted as a sign of infection.     

哺乳母猪日粮中增加豆粕添加比例对母猪和仔猪生产性能的影响

采用131头母猪(Line 241;DNA,Columbus,NE)来评价哺乳母猪日粮中增加豆粕添加比例对母猪和仔猪生产性能的影响。在母猪妊娠112 d时,依据母猪体重和胎次平均分为3个处理组,对应日粮豆粕添加比例依次为25%、30%和35%。日粮按1.05%回肠可消化(SID)赖氨酸的标准进行配制,随着豆粕添加比例的增加,降低L-赖氨酸盐酸盐添加比例,其他氨基酸和营养素依据营养推荐量添加。试验日粮从妊娠112 d饲喂到断奶(20 d±2),产仔后48 h内完成寄养,使得每窝仔猪头数相等。结果显示,随着日粮中豆粕比例的增加,母猪体重损失增加(线性,P=0.017),分娩到断奶的背膘损失增加(二次方程,P=0.052)。不同处理组间,母猪分娩后0~7 d采食量相近(P>0.10)。然而,随着日粮豆粕比例的增加,母猪分娩后7~14 d,14 d~断奶的日采食量下降(线性,P=0.01)。数据表明,不同处理组断奶后发情率、断奶头数、断奶窝重、窝增重间存在差异(P>0.10)。哺乳母猪分娩后第14天的血清尿素氮浓度随豆粕比例的增加而增加(线性,P=0.001)。然而,无论哪种处理,母猪肌酐浓度均无差异(P>0.05),表明尿素氮增加是日粮中粗蛋白质水平增加的反映,与蛋白质分解代谢增强相反。总之,随着日粮中豆粕比例从25%增加到35%,哺乳母猪的采食量下降、体重损失增加,窝仔猪生产性能无差异。     

母猪饲料对现代高产母猪营养的重要性

在过去的30年中,母猪的生产性能得到大幅度地提高。母猪的产仔数从8—10头增加到12～14头,平均产仔数提高了10％,断奶仔猪数提高了15％;泌乳量从4～5kg／d增加到10～12kg／d,提高了一番;断奶仔猪窝重从45kg增加到70kg,平均提高40％;每年产仔1．5～2胎增加到2．2～2-3胎;现代高产母猪产仔数、泌乳量、断奶窝重等等数据表明：母猪的生产水平提高了。我们在庆幸这些数据的同时,要明白母猪是猪场的生产机器,     

Hormonal and Metabolic Profiles of High-yielding Dairy Cows Prior to Ovarian Cyst formation or First Ovulation Post Partum

The present study aimed to investigate the pathogenesis of cystic ovarian disease (COD) in high-yielding dairy cows postpartum (pp). Hormonal and metabolic profiles during the first 3 weeks pp as well as during the final week prior to ovulation/cyst formation, were compared between dairy cows that developed either an ovulatory follicle (OV) or a cyst (CYST) < day 60 pp. Thirty-four lactations of 28 high-yielding (9500 kg/305 days) Holstein-Friesian dairy cows were studied. Ovaries of cows were scanned twice a week from day 10 pp on, until ovulation/cyst formation. Milk yield data, body condition scores and blood samples, for determination of oestradiol-17beta, insulin, beta-OH-butyrate and non-esterified fatty acids, were collected simultaneously. Milk samples for progesterone analysis were collected daily. Four lactations were excluded from further analysis because of irregular pp ovarian cyclicity, excluding COD. Eight lactations (26.7%) developed a cyst, while 22 lactations ovulated < days 60 pp. Ovulation and cyst formation occurred at similar times pp. Metabolic and hormonal profiles did not differ between CYST and OV lactations during the first 3 weeks pp. In the final week prior to cyst formation/ovulation, insulin concentrations were lower in CYST than in OV lactations while no differences were observed for any of the other parameters tested. In two lactations, cyst formation was preceded by suprabasal progesterone and increased oestradiol-17beta concentrations. These results suggest that cyst formation in high-yielding dairy cows pp is associated with lower insulin levels but not with other distinct hormonal and metabolic alterations. However from this study, we cannot exclude the involvement of subtle hormonal and metabolic changes in the pathogenesis of ovarian cysts. Suprabasal progesterone, and altered oestradiol-17beta concentrations, seem to play a minor role in cyst formation.