New types of virus infections of domestic animals in the German Democratic Republic. 1. Serologic survey studies of the distribution of equine torovirus infections in the GDR

Sera collected from 124 horses were checked by means of the serum neutralisation test against equine Bern virus. Torovirusspecific antibodies were recordable from 35 percent of all horses tested. These results are likely to suggest that toroviruses are widespread in the GDR and occur not only in horses but in other domestic animals and in man, as well.     

New types of virus infections of domestic animals in the German Democratic Republic. 3. Seroepizootiologic and experimental studies of herpesvirus infections in sheep--the etiology of pulmonary adenomatosis

Neutralisation tests for antibodies against ovine herpesvirus were applied to 848 sera which had been sampled from different sheep herds across the GDR. Between six and 20 percent of sheep in the herds tested exhibited neutralising antibodies, notwithstanding their pulmonary adenomatosis status. Incidence and titre distribution of antibodies against ovine herpesviruses in pulmonary adenomatosis herds were identical with those recorded from unsuspected herds. From among 21 sheep with pathomorphologically secured pulmonary adenomatosis, six animals exhibited antibody titres just as high as those recorded from responders of all herds examined. Lambs were obtained by hysterectomy and raised without mothers and were experimentally infected with Herpesvirus ovis. All of these animals responded to infection by clearly rising titres (between 1:2 and 1:32). Adenomatous pulmonary lesions were not recordable from any of them. One lamb, following experimental ovine herpesvirus infection, exhibition, exhibited subclinical interstitial pneumonia. Herpesvirus ovis has been widespread in sheep herds across the GDR. The authors' serological and experimental investigations do not support the assumption of an aetiological relationship between ovine herpesvirus infection and incidence of pulmonary adenomatosis.     

清热类中药抗畜禽病毒感染的应用

畜禽病毒性疾病是由病毒引起的、严重危害畜牧业生产的一类传染病 ,它不仅造成大批畜禽死亡和畜产品质量下降 ,影响经济收入和对外贸易 ,而且某些人畜共患病还威胁人类健康。目前在畜禽病毒性疾病的防治方面存在的主要缺陷是 [1 ] :1免疫程序复杂 ;2疫苗本身问题 :弱毒疫苗有反祖的潜在危险性 ,灭活苗抗原性弱 ,由于病毒毒株的变异 ,一些疫苗的保护率低 ;3对大部分畜禽病毒性疾病的治疗尚无有效的西药 ,虽然抗生素可防止继发感染 ,但有导致免疫抑制等副作用。祖国医学虽无病毒名称 ,但有关病毒引起的疾病及其防治早有记载 ,并积累了丰富的经…     

Abiotrophy in domestic animals: a review.

This review of abiotrophies in domestic animals has been organized by the predominate anatomical location of the lesion. Secondary considerations include the major signs of the clinical disorder and special neuropathological features. Those abiotrophies that have an established genetic basis are identified but the review includes degenerative disorders in which the etiology is not yet established.     

清热药抗畜禽病毒感染的机理研究进展

中药用于兽医临床在中国已有几千年的历史。近年来 ,随着畜牧业的发展及集约化程度的提高 ,畜禽病毒性疾病的发病率、发病畜禽的种类也有增高的趋势 ,造成了巨大的经济损失。中药与西药相比有副作用小、不易导致病原微生物产生抗药性、很少在动物及其产品中形成有害残留等优点 [1 ] ,而清热药具有广谱的抗菌、抗病毒、抗炎、解热、抗肿瘤、抗氧化、调节机体免疫力等作用 ,因此 ,清热药已经广泛地用于防治畜禽病毒性疾病 ,并且均取得了较好的疗效。探讨清热药抗病毒的机理有利于更好地利用清热药 ,或与其他中药、西药配伍 ,充分发挥其抗畜禽…