Resumo

MAY SIABATO, Ariadna Marcela; CAMPOS GAONA, Rómulo  e  VELEZ TERRANOVA, Oscar Mauricio. Prevalence of pathogens associated with syndrome neonatal calf diarrhea syndrome in Valle del Cauca (Colombia). Acta Agron. [online]. 2022, vol.71, n.3, pp.320-326.  Epub 15-Fev-2024. ISSN 0120-2812.  https://doi.org/10.15446/acag.v71n3.100006.

Neonatal calf diarrhea (NCD) is a disease that affects neonates in livestock production. Its origin is multifactorial and generates great economic losses. The objective of this study was to determine the prevalence of etiological agents through selective sampling in animals susceptible to NCD in Valle del Cauca (Colombia). Intensive and semi-intensive dairy systems were selected for the study. The characterization of 25 production systems was carried out through a survey of the producers. Eight herds were randomly selected, and five calves were analysed in each one, which were sampled directly from the rectum, using the gloved hand technique. A total of 40 calves under three months of age were analysed, from pure Gyr, Gyrolando, Jersey and crossbred breeds. It was found that 58 % of the animals did not present intestinal parasites, a high prevalence of Cryptosporidium spp., was found in 25 % of them; 18 % presented Giardia spp. cysts among others; while 24 % presented parasites such as Eimeria spp., Trichomonas, and Coccidia. The free software Win Episcope 2001 was used to obtain the sample number, both in systems and in animals, and the RainBow Calf Scours Bio K 306 diagnostic kit was used to detect pathogens such as rotavirus, coronavirus, Cryptosporidium, Escherichia coli and Clostridum perfringens. Among the pathogens, Giardia and Trichomonas appeared with significant prevalence, which are relevant due to their zoonotic condition, and no evidence of coronavirus or rotaviruses was found.

Palavras-chave : breeding; calves; development; parasites; scour.

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