「肉牛头条」肉牛流行性感冒来袭,养牛户你知道如何应对吗

时间:2019-07-13 来源:www.austinenterprises-cacohi.com

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牛肉流感是一种由流感病毒引起的急性热传播疾病。牛肉很容易在潮湿和寒冷的环境中长时间诱发疾病,喂养和管理不当,也可以通过直接或间接接触传播。该病是急性的,可在大面积广泛分布,严重破坏和影响肉牛生产行业。现总结认为,疾病预防控制措施为广大养牛户提供了一定的参考。让我们仔细看看以下内容:肉牛流感的临床症状肉牛流感的诊断和预防措施。

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1.病因分析

这种疾病主要由牛引起,牛和牛都会患病。特别是3至5岁的中青年肉牛非常容易感染。此外,高产和多胎牛的症状更严重,死亡率更高。牦牛通常病情较轻,生病后症状相对较轻。该疾病可发生在一年中的任何季节,特别是在气候变化,高温和低温以及潮湿和潮湿的条件下,例如早春和深秋,气候非常不稳定。这是因为此时,肉牛在运动后容易出汗并感冒,从而导致疾病。此外,阴雨天气会导致谷仓的湿度增加。如果房屋内的环境不卫生,很容易滋生细菌,牛呼吸道粘膜的吸附和抗病毒能力会减弱,容易发生疾病。该疾病可通过呼吸道传播或通过从蚊子叮咬中取血,导致该疾病的普遍流行。

2,临床症状

The sick cow showed depression, appetite, lack of appetite or complete abolition, ruminant reduction or complete cessation, body temperature increased to 39.2 ~ 41.5 ° C, heart rate 23 ~ 55 times/min, pulse reached 70 ~ 116 times/min, The coat is reversed, the surface temperature is uneven, the conjunctiva is red, tears are formed, the eyelids are formed, the cough is frequent, the sputum is constantly sputum, some of the breath is short, the difficulty is frequent, the mouth is gasping, the nose is open, and the typical abdominal breathing is present. Outflow, muscle tremor, rumen motility sounds weak or disappear, severe symptoms can cause rumen food, swelling. Some of the diseased cows showed obvious lameness while walking, and had a septic or purulent nasal discharge, urinating short red, discharging dry or soft stools, greasy tongue coating, and cold ear tips.

3. Laboratory diagnosis

blood test. Taking the blood of a proper amount of diseased cows for blood examination, it was found that the number of red blood cells increased significantly, the neutrophils reached 1.62 times of the normal value, the nucleus was obviously shifted to the left, and the number of lymphocytes was decreased.

Animal test. The anticoagulant liquid of the diseased cow was taken, and the platelet layer and the white blood cells were obtained by centrifugal sedimentation treatment, and were inoculated into the brain of the newborn mouse. After 3 days, all the onset occurred, and death occurred within 1 to 1.5 days. At the same time, the healthy experimental cattle were inoculated with 10 mL of anticoagulant liquid in the high-heat period cattle, and the cow developed the disease after 4 days, showing the same symptoms as the natural infection case.

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4. Prevention and control measures

In situ, the inactivated oil seedlings can be prepared by using the bovine influenza strain of the serum of the local diseased bovine isolate, and the cattle are inoculated during the epidemic period to ensure better immune protection of the bovine body, thereby effectively preventing and controlling the disease.

xx药物预防。对于疾病尚未普及的地区,可以定期使用中西药预防,效果良好。中药预防,可取400g关中,加水煮沸,取液至牛,每日1次,1个周期,连续3天,具有较好的预控效果;或服用30g甘草,关中,紫苏,每片荆芥叶45g。开水后,将液体带到奶牛,每天一次,1个周期为3天,具有良好的预控效果。为了预防西药,可以使用盐酸金刚烷胺。每剂的剂量为1g。将其加入饲料中,每天混合两次,共5天。它具有良好的控制效果。它也可以使用马林肌肉片。每剂量为1~2.5g,加入饲料混合饲料,每日2次,1个周期为3天,具有较好的防治效果。

西医治疗。取10至20毫升病毒灵,10至20毫升柴胡,6至1000万IU青霉素钠(钾),30至50毫升氨基比林或安东定,混合均匀,每天两次肌肉注射患病牛;它可以肌内注射200,000至40毫升的流感或10至20毫升的抗炎和哮喘,每天2次。对于症状严重的病牛,可以用500mLO进行静脉注射。混合9%生理盐水,100万至200万IU链霉素,1200万IU青霉素钠,20-40 mL鱼腥草,5-10 mL地塞米松,10-20 mL Ansago,每日一次或静脉注射500mL 5 %葡萄糖,50~100mL 10%氯化钙,或250~500mL促进反刍动物,每日一次;也可静脉注射100~200mL水杨酸钠溶液,每日一次,连续使用2~4天。

中医治疗。治疗原则主要是清热解毒,化痰除湿,抗炎镇痛。取76g黄芪,24g薄荷,24g白芍,41g连翘,30g贝母,24g川寿,30g桔梗,60g石膏,24g牛蒡,30g荆芥,30g风,30g柴胡,将45克金银花,24克甘草,全部研磨成粉末,加入适量的开水,等待温度适合填充病牛。如果生病奶牛的采食量减少,在处方中加入适量的焦三仙;如果伴有咳嗽和呼吸急促,从广场上取下芥末和防风,加入适量的草劳(蝎子),冬瓜蒌,或加入50克杏仁;如果是严重积累,加入50克玉兰,60克麦芽,60克山楂;如果有跛行,加入30克牛膝,50克活,50克活。也可以服用65g柴胡,30g车前,35g白芍,60g龙胆,枸杞子,黄芪40g,绿皮45g,半夏37g,甘草25g,加适量水煮,等到液体温度适宜牛填充。