A sero-survey of major infectious causes of abortion in small ruminants in Morocco
A sero-survey of major infectious causes of abortion in small ruminants in Morocco
复制标题
DOI：
10.12834/vetit.389.1814.1
复制
发表时间：
2015-01-01
影响因子：
--
通讯作者：
Natale, Alda
中科院分区：
文献类型：
--
作者：
Benkirane, Abdelali;Essamkaoui, Soukaina;Natale, Alda
对摩洛哥2个地区的13个绵羊群和10个山羊群进行了5种主要流产感染的血清学调查。共308流产的女性（202母羊和106）和197血清（97母羊和99），进行了测试布鲁氏菌病，衣原体病，Q热，弓形体病，并为9个主要血清型的钩端螺旋体。母羊平均流产率为12.10%，母畜平均流产率为10.26%。血清学分析表明，绵羊和山羊中存在所有5种流产感染。10个（43%）牛群/羊群对布鲁氏菌病、21个（91%）衣原体病、17个（74%）弓形虫病、13个（57%）Q热和5个（22%）钩端螺旋体病呈阳性。钩端螺旋体在1个绵羊群中检出Copenhageni和Grypothyphosa血清型，在4个山羊群中检出Tarassovi和Copenhageni血清型。在调查的23个牛群/羊群中，22个（96%）显示混合感染。这项研究的结果证实，5个选定的流产感染可能参与在调查地区发生的流产暴发。需要进一步调查，以更好地了解调查区域内牛群和羊群感染性流产的病因。
A serological survey was conducted to estimate the seroprevalence of 5 major abortive infections in 13 sheep flocks and 10 goat herds in 2 regions of Morocco. A total of 308 from aborted females (202 ewes and 106 does) and 197 sera (97 ewes and 99 does), were tested for brucellosis, chlamydiosis, Q fever, toxoplasmosis, and for 9 major serovars of Leptospira. An average abortion rate of 12.10% was found in ewes and 10.26% in does. The serological analyses revealed the presence of all 5 abortive infections, both in sheep and in goats. Ten (43%) herds/flocks were positive to brucellosis, 21(91%) to chlamydiosis, 17 (74%) to toxoplasmosis, 13 (57%) to Q fever, and 5 (22%) to leptospirosis. Leptospira spp. serovars Copenhageni and Grypothyphosa were found in a single sheep flock, while Tarassovi and Copenhageni were detected in 4 goat herds. Of the 23 investigated herds/flocks, 22 (96%) showed mixed infections. The findings of this study confirmed the possible involvement of the 5 selected abortive infections in abortion outbreaks occurring in the investigated regions. Further investigations are needed to better understand the aetiology of infectious abortions in herds and flocks within investigated regions.