Baumgartner W, Reckinger M, Pernthaner A, Leitold B
II. Medizinischen Universitätsklinik für Klauentiere der Veterinärmedizinischen Universität Wien.
Dtsch Tierarztl Wochenschr. 1990 Nov;97(11):465-9.
In a period of one year blood samples of 374 sheep of Lower Austrian flocks were examined in intervals of two months for antibodies against Maedi-Visna (MV). Further on specific attention was paid to the prevalence of MV-infection in the flocks. The antibody-titers were determined by means of agar gel-immunodiffusion test. In 5 (23.8%) of 21 flocks 45 (12.0%) of the sheep were seropositive. Seroprevalence varied within the examined breeds: 19 (27.1%) of 70 Karakul-sheep, 18 (28.1%) of 64 East-Friesian milk-sheep, 7 (9.4%) of 74 Merino sheep and 1 (0.9%) of 111 mountain sheep. None of 55 black-headed sheep showed MV seropositive reaction. Clinical symptoms of Maedi-disease were especially observed in milk-sheep and for the first time in Austria in Karakul-sheep. Unfavorable housing conditions (insufficient room, bad climatic conditions), breed specific behavior patterns (crowding of Karakul-sheep) and a high prevalence of MV infections promote a high incidence the disease.
在一年的时间里，对下奥地利州羊群中的374只绵羊的血液样本每两个月检测一次，以检测抗梅迪-维斯纳病（MV）抗体。此外，还特别关注了羊群中MV感染的流行情况。抗体滴度通过琼脂凝胶免疫扩散试验测定。在21个羊群中的5个（23.8%）中，有45只绵羊（12.0%）血清呈阳性。在所检测的品种中，血清阳性率各不相同：70只卡拉库尔羊中有19只（27.1%），64只东弗里生奶羊中有18只（28.1%），74只美利奴羊中有7只（9.4%），111只山地羊中有1只（0.9%）。55只黑头羊均未出现MV血清阳性反应。梅迪病的临床症状在奶羊中尤为明显，在奥地利，卡拉库尔羊中首次出现。恶劣的饲养条件（空间不足、气候条件差）、品种特定的行为模式（卡拉库尔羊拥挤）以及MV感染的高流行率促使该病的高发病率。
