EVALUATION OF AIR COOLING SYSTEMS FOR HIGH YIELDING COWS IN FREE STALLS

Authors

  • Handrey Borges de Araújo
  • Ilda de Fátima Ferreira Tinôco
  • Fernando da Costa Baêta
  • José Humberto Teixeira Santos
  • Cecília de Fátima Souza

DOI:

https://doi.org/10.13083/reveng.v18i1.196

Keywords:

baias livres, sistema de confinamento, ambiente térmico, ITGU.

Abstract

In an attempt to improve thermal environment for high yielding animals, this study was done with animals yielding 40 kg day-1 in the stall-free milk production system to evaluate the air cooling systems with or without forced ventilation. The east-west oriented experimental facility was 65.6 long, 11.1 m wide, 3.5 m from floor to the ceiling, and 2.8 m eaves, with aluminum covered metallic roof, with 11° inclination and small opening in the ridge. The facility was divided into three parts to compose the following treatments: misting; misting + ventilation and the control. Based on the experimental conditions, the environmental results and animal response, misting + ventilation slightly improved yield and comfort conditions.

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Published

2010-02-24

How to Cite

Araújo, H. B. de, Tinôco, I. de F. F., Baêta, F. da C., Santos, J. H. T., & Souza, C. de F. (2010). EVALUATION OF AIR COOLING SYSTEMS FOR HIGH YIELDING COWS IN FREE STALLS. Engineering in Agriculture, 18(1), 77–83. https://doi.org/10.13083/reveng.v18i1.196

Issue

Vol. 18 No. 1 (2010)

Section

.

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