ABSTRACT This study aimed at evaluating bovine behavioral parameters managed in crowding pens built with modular panel of reforestation wood and homogeneous particle sheets of sugarcane bagasse and in conventional wooden crowding pens. The animals treated had their body surface temperature measured by the infrared thermography method and the behavior evaluated through the flight time parameters and the behavior score in the crowding pens. The results indicated that the animals managed in these buildings showed no difference in the behavioral parameters, but the mean and maximum superficial body temperatures were lower in the animals managed in the crowding pens of modular panel.

Este trabalho foi realizado no verão de 2002 e teve como objetivo avaliar a influência de alguns recursos de climatização no microclima interno das instalações. Foram utilizadas três instalações: i) controle; ii) com aspersão associada à ventilação, e iii) com tela de sombreamento. Os dados climáticos de cada instalação foram registrados e, posteriormente, calculados os índices de temperatura e umidade, do globo negro e umidade e a entalpia. Foram selecionados e analisados 26 dias com entalpia elevada. Os índices de temperatura e umidade (ITU) e de temperatura do globo e umidade (ITGU), nos horários mais quentes do dia, diferenciaram-se para a instalação climatizada (ii), que apresentou melhor desempenho em relação às demais. A entalpia menor foi observada no tratamento com tela (iii).

This work was carried out during the summer of 2002 and the objective was to evaluate the influence of some cooling systems inside a housing. Three housing systems were used: i) control housing; ii) housing with mist and fans, and iii) shade cloth. The climatic data of each housing were registered to calculate the temperature humidity index (THI), the black globe humidity index (BGHI) and the enthalpy. Twenty six days with high enthalpy were selected and analyzed. Temperature humidity index (THI) and black globe humidity index (BGHI), in the hottest registration times, were able to differentiate the climatic housing, which shows better performance than the others. The lower enthalpy was observed in the shade cloth treatment.