We examined the hypothesis that rumination time (RT) could serve as a useful predictor of various common diseases of high producing dairy cows and hence improve herd management and animal wellbeing. We measured the changes in rumination time (RT) in the days before the recording of dis- eases (specifically: mastitis, reproductive system diseases, locomotor system issues, and gastro- enteric diseases). We built predictive models to assess the association between RT and these diseases, using the former as the outcome variable, and to study the effects of the latter on the former. The average Pseudo-R2 of the fitted models was moderate to low, and this could be due to the fact that RT is influenced by other additional factors which have a greater effect than the pre- dictors used here. Although remaining in a moderate-to-low range, the average Pseudo-R2 of the models regarding locomotion issues and gastroenteric diseases was higher than the others, suggest- ing the greater effect of these diseases on RT. The results are encouraging, but further work is needed if these models are to become useful predictors.

Rumination time as a potential predictor of common diseases in high-productive Holstein dairy cows

Moretti R.;Chessa S.;
2017-01-01

Abstract

We examined the hypothesis that rumination time (RT) could serve as a useful predictor of various common diseases of high producing dairy cows and hence improve herd management and animal wellbeing. We measured the changes in rumination time (RT) in the days before the recording of dis- eases (specifically: mastitis, reproductive system diseases, locomotor system issues, and gastro- enteric diseases). We built predictive models to assess the association between RT and these diseases, using the former as the outcome variable, and to study the effects of the latter on the former. The average Pseudo-R2 of the fitted models was moderate to low, and this could be due to the fact that RT is influenced by other additional factors which have a greater effect than the pre- dictors used here. Although remaining in a moderate-to-low range, the average Pseudo-R2 of the models regarding locomotion issues and gastroenteric diseases was higher than the others, suggest- ing the greater effect of these diseases on RT. The results are encouraging, but further work is needed if these models are to become useful predictors.
2017
84
4
385
390
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85042463535&doi=10.1017%2fS0022029917000619&partnerID=40&md5=31a5795d3da482f368a7e1fbd0a6b574
Rumination, animal welfare, dairy cow, predictive model
Moretti R., Biffani S., Tiezzi F., Maltecca C., Chessa S., Bozzi R.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1689037
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