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Molecular identification of the most frequent pathotypes of in calves with diarrhoea in the Cajamarca region of Peru. | LitMetric

Molecular identification of the most frequent pathotypes of in calves with diarrhoea in the Cajamarca region of Peru.

Open Vet J

Laboratorio de Biotecnología en Sanidad Animal, Estación Experimental Baños del Inca, Dirección de Desarrollo Tecnológico Agrario, Instituto Nacional de Innovación Agraria (INIA), Baños del Inca, Cajamarca, Perú.

Published: September 2024

AI Article Synopsis

Article Abstract

Background: Colibacillosis caused by causes significant economic losses in the livestock sector worldwide and is one of the calves' leading causes of diarrhea.

Aim: This study aimed to identify the most frequent molecularly pathotypes in calves with diarrhea in six provinces of the Cajamarca region in the northern highlands of Peru.

Methods: Twenty-eight herds of dairy cattle under a semi-intensive rearing system were evaluated; 95 samples were isolated from calves with diarrhea up to the first month of life, 62 males and 33 females, during the rainy season.

Results: The presence of virulence genes of strains was more prevalent in males; the (89.47%), (83.15%), and 5 (57.89%) genes were more expressed, and the (17.89%) and 2 (1.05%) genes were less expressed. The gene (21.05%) was more present in females.

Conclusion: When strains express virulence genes , and 5 and their atypical double, triple, and quadruple combination between different observed pathotypes, they give rise to the formation of several pathotypes by the horizontal transfer of virulence genes, which can cause colibacillosis processes in more virulent calves, which is one of the most important causes of diarrhea in calves in the region of Cajamarca, compromising the sanitary viability in the herds.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11563608PMC
http://dx.doi.org/10.5455/OVJ.2024.v14.i9.6DOI Listing

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