Environmental comfort in constructions for Sindi and Guzera calves in the agreste region of the State of Paraiba, Brazil

Engenharia Agrícola

Dermeval A. Furtado¹  Adriana P. Peixoto²  José W. B. Do Nascimento²  Jonh E. F. Regis² 

[1] ,UFCG Unidade Acadêmica de Engenharia Agrícola Campina Grande PB

关键词: environment;    cattle;    adaptability;    physiological responses;    ambiência;    bovinos;    adaptabilidade;    respostas fisiológicas;   

DOI  :  10.1590/S0100-69162012000100001

来源: SciELO

【 摘 要 】

The objective of this study was to evaluate the quality of air, bioclimatic indexes of facilities and physiological indices of Guzera and Sindhi calves, reared in climatic conditions of Agreste. The study was conducted at the experimental station of Alagoinha, PB, Brazil, using 16 calves of Sindi and Guzerá races. The average concentration of oxygen (20.85%), ammonia (1.99 ppm), carbon monoxide (<0.01 ppm), methane (0.13 ppm) and hydrogen sulfide (<0.01) within facilities, were within the limits established by the Brazilian and international standards, for both animals and workers. The bioclimatic index of temperature and humidity and the temperature of the black globe and humidity index were within the thermal comfort zone for cattle in most of the experimental period, the mean values of respiratory frequency (26.0 min mov-1) and skin temperature (32.3 °C) were higher in the hottest time of the day (1 pm) and rectal temperature (39.3 ºC) in the late afternoon (5 pm), but remained within normal ranges for the studied races. The races have good adaptability to climatic conditions in the region of the Paraibano Agreste, Brazil.

【 授权许可】

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