Meradi Salah, Cabaret Jacques, Bentounsi Bourhane
Institute of Veterinary Sciences and Agronomic Sciences, University of Batna 1.
Onderstepoort J Vet Res. 2019 Feb 28;86(1):e1-e3. doi: 10.4102/ojvr.v86i1.1648.
Clinical indicators such as diarrhoea (DISCO) or anaemia (FAMACHA©) are used as a measure for targeted selective treatments against gastrointestinal nematodes (GIN). Enteric cestodes such as Moniezia may interfere directly with DISCO or indirectly with the FAMACHA© score. We investigated 821 Ouled Djellal rams naturally infected in a steppe environment (GIN alone, cestodes alone, GIN and cestodes) or not. The rams were treated with ivermectin 2 months before being slaughtered to reduce the impact of nematodes on the clinical scores; however, persistent or newly acquired GINs were not related to both scores. Of the non-infected rams (n = 296), 26% identified as needing treatment against GIN using the FAMACHA score, and 34.5% using DISCO would have been thus selected. This implies that the clinical indicators used for the targeted selective treatment of gastrointestinal nematodes are not fully reliable when a low infection is recorded and may well be influenced by confounding factors. As expected, only DISCO was affected by cestode infection, and we suggest that the presence of Moniezia should also be taken into consideration.
腹泻（DISCO）或贫血（FAMACHA©）等临床指标被用作针对胃肠道线虫（GIN）进行靶向选择性治疗的衡量标准。诸如莫尼茨绦虫之类的肠道绦虫可能会直接干扰DISCO，或间接影响FAMACHA©评分。我们调查了821只在草原环境中自然感染（仅感染GIN、仅感染绦虫、同时感染GIN和绦虫）或未感染的乌尔德杰拉勒公羊。公羊在屠宰前2个月用伊维菌素进行治疗，以减少线虫对临床评分的影响；然而，持续存在的或新感染的GIN与这两个评分均无关联。在未感染的公羊（n = 296）中，有26%根据FAMACHA评分被判定需要进行抗GIN治疗，而若使用DISCO则会有34.5%的公羊被选中接受治疗。这意味着，当感染程度较低时，用于胃肠道线虫靶向选择性治疗的临床指标并不完全可靠，而且很可能受到混杂因素的影响。正如预期的那样，只有DISCO受到绦虫感染的影响，我们建议还应考虑莫尼茨绦虫的存在。
