The effects of heat stress on milk production and the grazing behavior of dairy Holstein cows milked by an automatic milking system.
J Anim Sci
; 100(9)2022 Sep 01.
Article
em En
| MEDLINE
| ID: mdl-35737943
In higher temperature conditions, dairy cows under pasture-based automatic milking systems may experience heat stress, affecting their health and productive performance. In the present study, the relationships between heat stress, measured by the temperaturehumidity index (THI), productive traits, and grazing behaviors were evaluated. Cows exhibited an increase in milking frequency and their time standing, decreasing the time grazing, lying, and ruminating as the THI increased on the same day. Additionally, cows had decreased milk production when the THI increased in the previous days. Understanding how cows adjust their grazing behavior to handle changes in the environment allows for the development of management strategies designed to improve animal welfare.
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Doenças dos Bovinos
/
Transtornos de Estresse por Calor
Limite:
Animals
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article