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Revista de la Facultad de Medicina Veterinaria y de Zootecnia
versão impressa ISSN 0120-2952
Resumo
ARRIETA, L. M.; CRUZ, J. M. e GONZALEZ-HERRERA, L. G.. Podal disease in cows: prevalence and association with some variables. Rev. Med. Vet. Zoot. [online]. 2021, vol.68, n.1, pp.66-74. Epub 22-Nov-2021. ISSN 0120-2952. https://doi.org/10.15446/rfmvz.v68n1.97257.
Foot disease is one of the most difficult syndromes to control in the dairy industry. The goal of this study was to quantify the prevalence of foot disease, evaluating its association with factors such as race, calving order and weight. This is a retrospective study using the health and production records of a dairy herd located in the high tropics of Colombia. The racial components present were F1 Holstein x Blanco Orejinegro, 3/4 Holstein 1/4 Blanco Orejinegro, 5/8 Holstein 3/8 Blanco Orejinegro, Holstein 100%. 6 delivery orders were considered. The variable foot disease presents a binomial distribution. The effect of the factors was verified using a generalized linear model, by means of a logistic regression (PROC GENMOD SAS version 9.4). In the event of significant differences, the SAS LSMEANS procedure (version 9.4) and an Odds Ratio were applied between the levels that presented significance. The prevalence of foot disease in the herd was 10,55%. The risk factors considered were statistically significant: racial component (p < 0,0009), calving order (p < 0,0001) and average weight of the cows (p < 0,0001). An increase in the prevalence of the disease was observed associated with the Holstein breed, high calving order and low body weight. The prevalence of foot disease was higher in pure Holstein cows and lower in Holstein cows crossed with Blanco Orejinegro due to the resistance due to heterosis that the creole breed contributes. The increase in the delivery order as well as the low weight are related to a higher prevalence of this disease.
Palavras-chave : native breed; locomotion disorders in cattle; average body weight.