共查询到20条相似文献，搜索用时 203 毫秒
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家畜患骨营养不良时主要是发生钙、磷代谢障碍,并有血液生化及形态学的变化。1988～1989年进行的试验中发现20％骨营养不良的初胎怀孕母牛有血液形态学和生化指标的变化,同时发现血液生化指标与妊娠时间有关,尤其是妊娠后期变化较大。本试验的目的就是研究初胎怀孕母牛怀孕后期患骨营养不良的血液形态学变化和生化指标变化情况的特点。 相似文献
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怀孕母牛喂海带可预防患贫血、肿脖子等疾病,而且生下的犊牛体壮毛粗,抗病力强,有利于正常的生长发育。喂饲方法是:母牛怀孕 80-100天后,每天将200-250克海带洗净、切成丝,拌入饲料中喂 相似文献
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(一)看牛奶识别 用手挤出的牛奶,是蜜糖色并呈糊状、不流动的则多为怀孕母牛,如果是白色稀的,而且一挤会自然流出的则为空胎母牛。 (二)看乳房识别 乳房膨胀,乳头硬直,是怀孕母牛。乳房不膨胀,乳头不硬直者则没有怀孕。 (三)看牛眼 怀孕母牛瞳孔的正上方虹膜上出现3条 相似文献
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母牛是牛业养殖发展的重要基础,做好母牛饲养,能够提升牛业养殖的规模,让牛业产业养殖的下滑趋势得到改善。本文主要对怀孕母牛的饲养管理技术要点进行了介绍,例如对怀孕母牛的鉴定、怀孕母牛的分栏饲养研究以及怀孕母牛的日常管理等。希望能够通过本文的相关研究,让养殖场母牛的养殖效率得到提升,从而提高养殖场的经济效益。 相似文献
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李永兰 《青海畜牧兽医杂志》2003,33(4):45-45
家畜钙磷缺乏可引起产前截瘫 ,产后瘫痪及仔畜佝偻病。黑白花奶牛由于生长快 ,胎儿个体大更容易发生本病。目前湟中县多巴地区饲养黑白花奶牛的规模不断扩大 ,但由于饲养管理措施不当 ,怀孕母牛 ,犊牛钙磷缺乏症发病率较高 ,因而影响了本地奶牛业的发展。1 病因1 1 饲料中钙、磷不足 通过饲料摄入的钙磷不足 ,特别是怀孕后期母牛发生本病的主要原因。本地农民主要以小麦秸秆、麸皮、菜籽饼等喂牛 ,不添加任何微量元素 ,而这些饲料中钙磷含量很低。1 2 满足生理需要 母牛在怀孕后期 ,随怀孕月份增加 ,胎儿个体不断发育 ,对钙磷的需要不… 相似文献
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木沙江·麦麦提 《畜牧兽医科技信息》2021,(3):101-101
牛子宫内膜炎属于繁殖障碍性疾病,多发于母牛繁殖期,患牛会出现发情不正常、屡配不孕等现象,即怀孕也极易导致流产,给养殖场户造成损失,因此养殖人员要高度重视。1发病原因子宫内膜炎常见于产后母牛,其病原为链球菌、大肠杆菌以及葡萄球菌等。在分娩的过程中,如果母牛子宫遭受创伤,会导致细菌的入侵引发炎症。如果生产时所应用的器械没有彻底的消毒,母牛生产后胎衣不下,也极易诱发子宫内膜炎。 相似文献
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母牛产前肚胀病多在母牛怀孕数月后,由于使役或饲喂不当,造成胎气不舒,郁滞所致.患牛肚腹虚胀膨大,手按如棉花包状.不饮不喂时臌胀较轻,饮喂后则重,食欲低,反刍少,日久被毛粗乱,精神沉郁,舌色 相似文献
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奶牛子宫内膜炎研究进展 总被引：1，自引：1，他引：0
子宫内膜炎是奶牛中一种常见的产科疾病,它可引起奶牛不孕,给奶牛养殖带来严重经济损失。引起奶牛子宫内膜炎的主要原因可概括为理化性和生物性二类,病原菌的侵入可通过上行性感染和下行性感染的途径造成子宫炎的发生,主要致病菌有葡萄球菌、大肠埃希菌、链球菌等。直肠检查和内窥镜检查仍是奶牛子宫内膜炎的常规的诊断方法,但仍有待于探索简便准确的新诊断方法。恢复子宫张力,促进子宫血液循环和炎性分泌物排出,抑制或消除子宫内感染病菌是子宫内膜炎的主要治疗原则,常用的治疗方法有冲洗子宫,全身疗法,抗生素和激素疗法以及中药治疗等。创建新的治疗和诊断方法,开发疗效好的药物将是提高奶牛子宫内膜炎诊疗水平的努力方向。 相似文献
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笔者于2009年4月11日至8月27日在邯郸市某乳业公司牧场采用三种方法医治了63头患乳房炎的泌乳奶牛,采用三种方法进行治疗。方法一:用"公英散"每头500g灌服处理了21头病牛;方法二:对每患病乳室注射氨苄西林钠5g处理21头病牛;方法三:对每患病乳室注射头孢噻呋2g处理21头病牛。记录五天后的观察结果,比较各种药物对奶牛乳房炎的治愈情况。通过对治疗效果分析表明,三组处理方法对乳房炎均有一定的疗效,但方法一即使用"公英散"治愈效果较为明显,且为纯中药方剂,在兽医临床上有推广应用意义。 相似文献
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苏德昌 《畜牧兽医科学(电子版)》2021,(4):90-91
牛传染性角膜炎又被称为红眼病,是养殖期间很容易发生的一种季节性病害,是由嗜血杆菌感染引起。该类疾病发生流行具有典型季节性,是夏秋季节很容易发生的一类传染性疾病。蚊虫、牛虻是传染性角膜炎的主要媒介。发病后,牛的眼角膜会出现炎症病变,伴随大量流泪症状,害怕阳光刺激,眼结膜潮红充血。患病牛精神不安,生产能力显著下降,病情快速传播,连续发生。危害严重时还会造成牛失明,威胁牛的正常生长发育。该文探讨牛传染性角膜炎的临床症状、鉴别诊断方法和防治措施。 相似文献
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Oestrus during pregnancy in the cow 总被引：1，自引：0，他引：1
Forty-three oestruses were observed in 35 pregnant cows in one beef suckler herd and 17 dairy herds; at each oestrus the pregnant cow stood willingly to be mounted by another cow or bull. Such oestruses were observed at all stages of pregnancy, although more often between 121 and 240 days, occurred more than once per pregnancy and were also seen in successive pregnancies. On one farm where the dairy cows were observed for four 30 minute periods daily, oestrus was recorded in 5.7 per cent of pregnant cows. The behavioural signs associated with oestrus during pregnancy were indistinguishable from those of true oestrus in non-pregnant animals and although its duration was shorter (mean 5.6 hours), its intensity was comparable to that of the true oestrus. Pregnant cows showing oestrus were usually seen interacting with other oestrous cows in the sexually active group. Pregnant cows showing oestrus had a higher mean condition score (3.9 +/- 0.64) than control pregnant cows (3.0 +/- 0.36). Physiological changes in the genital tract normally associated with true oestrus were not observed in pregnant cows showing oestrus. There was no ovulation or metoestrous bleeding. The characteristics of cervical mucus, including ferning patterns, were similar to those of pregnant cows at the same stage of pregnancy. Hormonal changes associated with oestrus in non-pregnant cows were not observed in the pregnant cows exhibiting oestrus. Seven of nine pregnant cows at oestrus stood willingly to be mounted by a bull. On seven occasions, bulls exposed only to cervical mucus from pregnant cows showing oestrus did not display flehmen.(ABSTRACT TRUNCATED AT 250 WORDS) 相似文献
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现代牛养殖与生产中,牛瘤胃酸中毒是比较常见的一种消化性病症,该病发病急、病牛死亡快,所以很容易给奶牛行业带来巨大经济损失。本研究通过分析牛瘤胃酸中毒原因与症状,提出对牛瘤胃酸中毒实施中西医结合治疗方法,观察其治疗效果,以期能够为牛养殖提供有用的治疗建议。 相似文献
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An outbreak of fat cow syndrome occurred in a herd of 300 Friesian and Friesian/Holstein dairy cows calving predominantly between January and May. The herd came in off grass in good condition despite a long and hot summer. The dry cows received a diet of grass silage, brewing waste and minerals until the end of December, but the grass silage was butyric and was partially replaced by maize silage. By January 23, 16 of 70 calving cows (23 per cent) had appeared to suffer milk fever. Subsequent blood tests revealed that the cows may have been ketotic, and clinical and post mortem examination showed that they were probably suffering from fat cow syndrome. The freshly calved sick cows were treated with glucose, and corticosteroids were injected every second day into those which remained ill. The cattle had received a high energy diet, but the cows still to calve were placed on a diet of low metabolisable energy (77 MJ/cow) but adequate levels of undegradable protein. The problem was associated with a possible clostridial infection in two cows and with reduced fertility. 相似文献
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J A Coetzer A Theodoridis S Herr L Kritzinger 《The Onderstepoort journal of veterinary research》1979,46(3):165-169
Fifteen pregnant cows were inoculated subcutaneously and intravenously between 101-147 days of gestation with the wild-type Wesselsbron disease virus. In addition, 2 foetuses were injected directly through the uterine wall after surgical exposure of the pregnant horn. The clinical symptoms, viraemia and serology in the cows are reported, as also the gross- and histopathology and the virological and serological results of the calves and foetuses. Abortion was not an important manifestation of experimental Wesselsbron disease in cows, as it occurred in 3 animals only. Apart from a short temperature reaction in some cows no other clinical symptoms were recorded. A viraemia was not always present in these cows and, when detected, was of low magnitude and short duration. One cow, in which the foetus was ioculated at 115 days of gestation, aborted at 231 days. The foetus showed marked porencephaly and cerebellar hypoplasia. 相似文献