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首页> 外文期刊>African Journal of Biotechnology >Isolates of Mycoplasma mycoides subspecies mycoides (SC) in small ruminants in Sahel zone of Nigeria and its implications on disease control
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Isolates of Mycoplasma mycoides subspecies mycoides (SC) in small ruminants in Sahel zone of Nigeria and its implications on disease control

机译：尼日利亚萨赫勒地区小反刍动物中支原体支原体亚种的分离及其对疾病控制的影响

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A study on the isolation of?Mycoplasma mycoides?subspecies?mycoides (SC)?in small ruminants and its implication on disease control was carried out in the Sahel zone of Nigeria. This was achieved by the examination of pneumonic lesions in apparently normal and affected lungs of sheep and goats slaughtered at Maiduguri municipal abattoir. A total of 400 lungs (200 each from sheep and goats) were examined at post-mortem (PM) for pneumonic lesions. Of this number, 50 (25%) sheep had pneumonic lungs, while almost double the number?89 (44.5%)?of goats showed pneumonic lungs. The prevalence of pneumonic lungs in the sheep was higher amongst the females (34.3%) than the males (23%), while in the goats, the prevalence was higher in the males (48%) compared to the females (38.7%) examined. Seven different?Mycoplasma?species were isolated from both unaffected and affected lungs of sheep and goats. 42 isolates were obtained from 150 unaffected sheep samples, whilst 36 isolates were obtained from 50 affected sheep. Of the 111 unaffected and 89 affected caprine lung samples, a total of 55 and 66?Mycoplasmaisolates were recovered respectively. The commonly occurring?Mycoplasmas?in both unaffected and affected lungs of sheep and goats were?Mycoplasma ovipneumoniae(30%),?Mycoplama mycoides?subspecies?capri?(29.5%),?Mycoplama mycoidessubspecies?mycoides SC?(13.5%) and?Mycoplasma capricolum?(11.5%)?withMycobacterium bovis?(1.5%) being the least isolated.?To the best of the authors’ knowledge, this is the first report of the occurrence of?Mycoplasma mycoidessubspecies?mycoides SC?the causative agent of contagious bovine pleuropneumonia (CBPP) in cattle in small ruminants (sheep and goats) in Nigeria. Although the isolation rate of?M. bovis?was low in this study, its isolation in non-bovine ruminants is significant as it shows evidence of mycoplasma circulation between various animal species reared in close contact. These findings may pose serious impediments to the control of endemic CBPP in Nigeria.
机译：在尼日利亚的萨赫勒地区，对小反刍动物中的“支原体”亚种“真菌”（SC）的分离及其对疾病控制的意义进行了研究。这是通过检查在迈杜古里市屠宰场宰杀的绵羊和山羊的正常和受影响肺中的肺部病变来实现的。死后（PM）总共检查了400个肺部（绵羊和山羊各200个）的肺部病变。其中50只（25％）绵羊具有肺肺，而约有89只（44.5％）山羊具有肺肺。在绵羊中，肺炎的患病率在雌性（34.3％）中高于雄性（23％），而在山羊中，雄性（48％）则高于雌性（38.7％） 。从未受影响和受影响的绵羊和山羊肺中分离出七个不同的支原体。从150个未受影响的绵羊样品中获得了42个分离株，而从50个受影响的绵羊中获得了36个分离株。在111例未受影响和89例受影响的肺脏肺标本中，分别回收了55和66个支原体。绵羊和山羊的未受影响和受影响的肺中普遍存在的“支原体”为：肺炎支原体（30％），“ Mycoplama mycoides”亚种“ capri”（29.5％），“ Mycoplama mycoides亚种” mycoides SC（13.5％）以及据作者所知，这是关于“支原体支原体”（11.5％）和“牛分枝杆菌”（1.5％）分离度最低的报道。这是关于“支原体支原体”亚种“ Mycoides SC”发生的第一份报道。尼日利亚小反刍动物（绵羊和山羊）的牛中传染性牛胸膜肺炎（CBPP）的分布。虽然隔离率？M。牛肝菌在这项研究中含量很低，它在非牛反刍动物中的分离非常重要，因为它显示了紧密接触饲养的各种动物之间支原体循环的证据。这些发现可能严重阻碍了尼日利亚地方性CBPP的控制。

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