共查询到20条相似文献,搜索用时 218 毫秒
1.
2.
奶牛胎衣不下是奶牛产后多种常见病的一种,又称"胎盘保留"或"胎盘停滞"。奶牛胎衣不下不仅影响奶牛下一次交配和受孕率,还会导致产奶减少、繁殖力下降、严重的导致奶牛不孕,并会导致多种继发疾病,如子宫感染等。探讨奶牛胎衣不下的症状及预防措施。 相似文献
3.
4.
<正>母猪子宫内膜炎是一种母猪常见的产科疾病,主要是由于在分娩时或产后期中病原微生物通过产道感染途径侵入,尤其是在发生难产、胎衣不下、子宫脱出、子宫修复不全、流产(胎 相似文献
5.
6.
<正>母畜分娩后,不能在正常时间内排出胎膜,叫胎衣不下,又称胎盘停滞。各种动物产后胎衣排出的正常时间,牛约为6~8h,不超过12h,羊约1~2h,猪约1~3h,犬约2~3h。本病各种动物都可发生。本文叙述的是笔者在2010年3月份遇到的一例山羊胎衣不下。1病例情况2010年3月12日上午9时,珊瑚镇二河新村朱某家饲养5头山羊,2公3 相似文献
7.
8.
奶牛胎衣不下的原因与治疗 总被引:2,自引:0,他引:2
<正>胎衣不下或称胎膜滞留,是指分娩后12h而胎衣未能完全自然排出,胎衣不下是牛特别是奶牛常发病和多发病之一,发病率约为20%~50%,夏季甚至高达60%以上,胎衣不下是由于滞留在子宫内的胎衣发生腐败分解,可引起子宫炎,影响再孕及产奶, 相似文献
9.
<正>在生产实践中一般把奶牛分娩后12h内胎衣还没有正常完全排出称为胎衣不下或胎盘停滞。此病在正常奶牛群中发病率约为5%,在高产奶牛和饲养管理差的奶牛群中发病率更高, 相似文献
10.
11.
目的:探讨牦牛胎盘对小鼠组织中T-SOD活性的影响。方法:根据采集到胎盘的海拔高度将100只小白鼠随机分为高海拔组、中海拔组、低海拔组和对照组,连续28d分别灌服不同海拔的牦牛胎盘和生理盐水,然后处死小白鼠快速采取肝、肺、心肌、骨骼肌、脾脏和肾脏,测定各组织内T-SOD的活性。结果:高海拔肺脏,高、中海拔组骨骼肌中T-SOD活性显著高于对照组,差异极显著(P<0.01);各海拔组心肌和肾脏,高、中海拔组肝脏中T-SOD活性高于对照组,差异显著(P<0.05)。结论:牦牛胎盘能够提高小鼠肺、骨骼肌、心肌、肾脏和肝脏中T-SOD的活性。 相似文献
12.
If a severe uterine inflammation is diagnosed 15 days post partum in a cow with retained placenta by clinical examination, it has to be assumed that this inflammation was already manifest two days before (in the discussed case at the time of purchase). By an external examination of the animal this genital inflammation cannot be seen, if there is no vaginal discharge or dried uterine fluids at the tail and around the vulva. The inflammation is the consequence of the placental retention, even if there has been veterinary assistance (manual removal of the retained placenta, antibiotic treatment of the uterus) in time. After manual removal of the placenta, part of it is normally left in the tips of the uterine horns; they cannot be reached by the veterinarian's hand. Even by additional means - like application of oxytocin, lifting the abdomen of the cow with the aid of a plank or trying to invert the tip of the uterine horn - the fetal membranes cannot always be totally removed. The statement that the placenta has been totally removed, is correct only if the end of the chorionic membranes could be clearly identified. Each placental retention in cattle carries the risk of reduced fertility. If a cow is sold a few days post partum, this defect, which can reduce the animal's breeding value, may be unnoticed. 相似文献
13.
14.
M. Rodriguez-Serna C. Carmona-Osalde J. L. Arredondo-Figueroa 《Journal Of Applied Aquaculture》2013,25(2):140-148
In this study, a range of commercially available animal and fish feeds were tested in the production of juveniles of the crayfish Procambarus llamasi, an endemic species of the Yucatan Peninsula, Mexico. A randomized block design was implemented to observe the effect of commercial shrimp (Crude Protein, CP = 38%), trout (CP = 43.2%), tilapia (CP = 31.8%), rabbit (CP = 16.1%), turkey (CP = 18%), and pig (CP = 15.2%) diets in a recirculating aquaculture system. Shrimp food showed the best results in terms of growth performance, while lowest growth values (P<0.05) were obtained with farm animal diets. Trout and tilapia diets were intermediate. Pig feed was the most cost-effective at US$ 0.44 per kg of crayfish growth. Where no feeds specifically for crayfish are available, terrestrial animal feeds have the advantage of low price, ready availability in the market, and acceptable performance. 相似文献
15.
16.
胺硫基烷复合剂治疗鲫鱼粘孢子虫病的组织病理学研究 总被引:3,自引:0,他引:3
粘孢子虫是鱼类体内外常见的寄生性原生动物,因孢子有坚硬的外壳,不易为药物杀伤,此类鱼病难以取得较好的疗效。作者通过多年试验,采用胺硫基烷复合剂,取得了80%以上的治愈率。本研究对患病鲫鱼的体表,鳃,味蕾,肝脏等进行组织病理学观察,并作治疗前后的对比,证明该药物具有特效,为鱼类的粘孢子虫病防治找到了一种新药。 相似文献
17.
18.
在河蟹育苗中常见早期溞状幼体(ZⅠ、ZⅡ)被聚缩虫(Zoothamniumsp)寄生引起细菌性或病毒性感染,造成突发性死亡。作者用孔雀绿、制霉素、氯霉素、高锰酸钾等药物对聚缩虫进行杀灭试验,结果显示以孔雀绿和制霉素的杀虫效果最好。但从早期 状幼体的病害防治效果来看,由于越冬亲蟹是病原体的携带者,因此作者强调防治工作必须从亲蟹暂养时做起,立足于早防早治;且以多种药物综合性措施为妥。 相似文献
19.
20.
草鱼病毒性出血病研究进展 总被引:21,自引:0,他引:21
草鱼出血病是严重困扰着草鱼养殖业发展的一大疾病。根据近几十年来对于该病研究的进展,就草鱼出血病病原的生物学特性、不同发现株之间的比较、分子生物学研究以及疾病的防治等方面进行综合评述,总结了草鱼出血病的研究现状及研究中亟待解决的问题,并提出了该领域以后的重点研究方向。为进一步深入开展对该病的防治研究提供参考,以提高草鱼养殖的生产率。 相似文献