Laboratório de Protozoologia, Programa de Pós-graduação em Biodiversidade e Conservação da Natureza, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, Campus Universitário, 36036-900, Juiz de Fora, MG, Brazil.
Brazilian Agricultural Research Corporation, Empresa Brasileira de Pesquisa Agropecuária-Embrapa Gado de Leite, 36038-330, Juiz de Fora, MG, Brazil.
Eur J Protistol. 2024 Apr;93:126063. doi: 10.1016/j.ejop.2024.126063. Epub 2024 Feb 12.
Since their discovery, rumen ciliates of domestic cattle have been reported from various geographic locations. However, until now there is only one taxonomic inventory of ciliates associated with Brazilian cattle. The present study aimed to assess the community composition, relative abundance, richness, and density of rumen ciliates in Brazilian cattle, whose feeding diets were supplemented with crescent urea levels. Across all treatments analyzed, one subclass, two orders, three families, 11 genera, and 31 species of ciliates were identified. The ciliate community composition and species richness varied among the four treatments used. However, the total ciliate density was not affected by the experimental diets. We described a new entodiniid morphotype, Entodinium caudatum m. orbonuclearis, and recorded Oligoisotricha bubali for the second time in Brazil.
自发现以来，已从不同地理区域报道了家畜反刍动物的纤毛虫。然而，到目前为止，仅对与巴西牛相关的纤毛虫进行了一次分类学清单编制。本研究旨在评估巴西牛的纤毛虫群落组成、相对丰度、丰富度和密度，其饲料中补充了新月形尿素水平。在分析的所有处理中，共鉴定出一个亚纲、两个目、三个科、11 个属和 31 种纤毛虫。纤毛虫群落组成和物种丰富度在四种处理中有所不同。然而，纤毛虫总密度不受实验饮食的影响。我们描述了一个新的内毛目形态，即尾毛状 Entodinium caudatum m. orbonuclearis，并第二次在巴西记录了 Oligoisotricha bubali。
