Evaluating the dry bulb and black globe temperatures and temperature and humidity index effect in dairy cows lodged in free-stall system

Authors

  • Francine Galhiardo Marcheto Universidade de Campinas, Faculdade de Engenharia Agrícola, Departamento de Construções Rurais, Campinas, SP
  • Irenilza de Alencar Nääs Universidade de Campinas, Faculdade de Engenharia Agrícola, Departamento de Construções Rurais, Campinas, SP
  • Douglas D'Alessandro Salgado Universidade de Campinas, Faculdade de Engenharia Agrícola, Departamento de Construções Rurais, Campinas, SP
  • Silvia Regina Lucas de Souza Universidade de Campinas, Faculdade de Engenharia Agrícola, Departamento de Construções Rurais, Campinas, SP

DOI:

https://doi.org/10.1590/S1413-95962002000600008

Keywords:

Thermal Comfort, Dairy Production, Temperature

Abstract

Dairy cows exposition to an adequate environment may lead to a good result in the milk production, for permitting a better use of cooling equipment and reducing the thermal stress in the animals, as well as improving level of productivity. This research work evaluated the effect of environmental dry bulb and black globe temperatures in dairy cows lodged in a freestall building, separated in two groups: the most productive ones with milk yield above 29 kgday-1 and the less productive, with milk yield below 14 kg/day. Results showed the effect of the environmental variables and the temperature and humidity index in the decrease in milk yield. No high correlation was found between the index and the milk yield for both studied groups.

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Published

2002-01-01

How to Cite

Marcheto, F. G., Nääs, I. de A., Salgado, D. D., & Souza, S. R. L. de. (2002). Evaluating the dry bulb and black globe temperatures and temperature and humidity index effect in dairy cows lodged in free-stall system. Brazilian Journal of Veterinary Research and Animal Science, 39(6), 320-323. https://doi.org/10.1590/S1413-95962002000600008

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