Abortion and various associated risk factors in dairy cow and sheep in Ili, China.
Abortion and various associated risk factors in dairy cow and sheep in Ili, China.
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DOI：
10.1371/journal.pone.0232568
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发表时间：
2020
期刊：
影响因子：
3.7
通讯作者：
Chen C
中科院分区：
文献类型：
--
作者：
Zhang H;Deng X;Cui B;Shao Z;Zhao X;Yang Q;Song S;Wang Z;Wang Y;Wang Y;Liu Z;Sheng J;Chen C
本文研究了伊犁地区家畜流产及其相关危险因素。估计了牲畜流产率，并将其与感染（布鲁氏菌病、沙门氏菌病、支原体和衣原体血清阳性）和管理（耕作类型和与其他畜群/羊群接触）风险因素相关联。用虎红平板试验（RBPT）和竞争性酶联免疫吸附试验（c-ELISA）对2996份血清（1406头牛，1590只羊）进行了布病血清学鉴定，结果表明，该地区牛布病总阳性率为6.76%，羊布病总阳性率为9.50%。X县牛、羊布鲁氏菌病血清阳性率分别为7.06%、9.12%，H县牛、羊布鲁氏菌病血清阳性率分别为11.70%、10.80%，Q县牛、羊布鲁氏菌病血清阳性率分别为4.22%、9.11%。牛支原体总阳性率为3.20%，羊支原体总阳性率为6.42%。X县牛、羊支原体阳性率分别为3.39%、7.98%，H县牛、羊支原体阳性率分别为5.26%、9.97%，Q县牛、羊支原体阳性率分别为2.11%、4.33%。牛、羊布鲁氏菌病的OR值分别为45.909 [95% CI 26.912-78.317，P<0.001]和70.507 [95% CI 43.783-113.544，P<0.001]倍，高于其他流产相关因素（混养、与其他畜群接触、支原体感染）。共采集54份样品，其中流产母牛22份，羊胎30份，乳汁2份，经鉴定为羊种布氏杆菌（B）。melitensis）阳性。从16头流产母牛、20只羊胎和2份牛奶样品中分离到38株布鲁氏菌。所有这些分离株均被鉴定并确认为B。melitensis。系统进化树分析表明，布鲁氏菌分离株与B型菌株亲缘关系较近。melitensis biovar 3分离自中国内蒙古，和B. Melitensis从挪威和印度分离。这些结果表明，B.羊种布氏菌生物变型3是导致奶牛和绵羊流产的主要病原体，也对人类健康构成威胁。此外，牲畜繁殖也会受到支原体感染和管理因素（耕作类型和与其他牛群/羊群的接触）的影响，特别是在偏远地区。
We studied livestock abortion and various associated risk factors in the Ili region of northwest China. Livestock abortion prevalence was estimated and correlated with infections (Brucellosis, Salmonellosis, Mycoplasma and Chlamydia seropositivity) and management (farming type and contact with other herds/flocks) risk factors. A total of 2996 serum samples (1406 cow, 1590 sheep) were identified by RBPT (Rose Bengal Plate Test) and c-ELISA (competitive-enzyme linked immunosorbent assay), and they showed the overall seroprevalence of brucellosis in the study area was cow 6.76%, sheep 9.50%. The seroprevalence of brucellosis in X county was cow 7.06%, sheep 9.12%; in H county was cow 11.70%, sheep 10.80%; and in Q county was cow 4.22%, sheep 9.11%. The overall seroprevalence of Mycoplasma in the study area was cow 3.20%, sheep 6.42%. The seroprevalence of Mycoplasma in X county was cow 3.39%, sheep 7.98%; in H county was cow 5.26%, sheep 9.97%; and in Q county was cow 2.11%, sheep 4.33%. The Odds ratio of brucellosis for cow and sheep, respectively, were 45.909 [95% CI 26.912–78.317, P<0.001] and 70.507 [95% CI 43.783–113.544, P<0.001] times higher than other abortion-related factors including mixed farming, contact with other flocks and Mycoplasma infection. A total of 54 samples, including aborted cow (22), sheep (30) fetuses and milk samples (2), were identified as Brucella melitensis (B. melitensis) positive. A total of 38 Brucella were isolated from 16 aborted cow, 20 sheep fetuses and 2 milk samples. All of these isolates were identified, and confirmed, as B. melitensis. A phylogenetic tree showed that the Brucella isolates closely matched the B. melitensis biovar 3 isolated in Inner Mongolia, China, and B. melitensis isolated from Norway and India. These results suggest that B. melitensis biovar 3 is the main pathogen responsible for cow and sheep abortion and also pose a human health risk. Additionally, livestock reproduction can also be influenced by Mycoplasma infection and managerial factors (farming type and contact with other herds/flocks), especially in remote areas.
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影响因子：
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作者：
Benkirane, Abdelali;Essamkaoui, Soukaina;Natale, Alda
通讯作者：
Natale, Alda
影响因子：
2.6
作者：
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Ben-Mandi, Meriem Hind
影响因子：
3.5
作者：
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通讯作者：
Luzzana, M
DOI：
10.1007/pl00011242
发表时间：
2001-02-01
影响因子：
4.5
作者：
Casañas, MC;Queipo-Ortuño, MI;Morata, P
通讯作者：
Morata, P
DOI：
10.1016/j.cvfa.2012.07.007
发表时间：
2012-11-01
影响因子：
4.1
作者：
Holler, Larry D.
通讯作者：
Holler, Larry D.