In the municipality of Saboyá, Boyacá, Colombia, the number of Haematobia irritans flies, coat temperature, respiratory rate, motor activity, flight distance, level of dirt and occurrence of subclinical mastitis were evaluated as indicators of animal welfare in Holstein cows reared in a silvopastoral system (association of Cenchrus clandestinus and Alnus acuminata) and a traditional system based on grazing C. clandestinus in monoculture. Monthly samplings were carried out between August 2015 and May 2016 in 20-30 lactating cows selected at random in each farm. The data were analyzed using generalized linear regression models. The number of flies per animal was higher (p<0.05) in the traditional system compared to the silvopastoral system (56 ± 47.5 and 44 ± 40.0 flies/animal, respectively); the average coat temperature in the animals of the traditional system was 37.4 ºC, while 3...

In the municipality of Saboyá, Boyacá, Colombia, the number of Haematobia irritans flies, coat temperature, respiratory rate, motor activity, flight distance, level of dirt and occurrence of subclinical mastitis were evaluated as indicators of animal welfare in Holstein cows reared in a silvopastoral system (association of Cenchrus clandestinus and Alnus acuminata) and a traditional system based on grazing C. clandestinus in monoculture. Monthly samplings were carried out between August 2015 and May 2016 in 20-30 lactating cows selected at random in each farm. The data were analyzed using generalized linear regression models. The number of flies per animal was higher (p<0.05) in the traditional system compared to the silvopastoral system (56 ± 47.5 and 44 ± 40.0 flies/animal, respectively); the average coat temperature in the animals of the traditional system was 37.4 ºC, while 3...