ABSTRACT
The global animal production is increasing as expected to meet world demand for food, especially for meat products. This research aimed to investigate the effect of two types of roofs (clay and fiber-cement tiles) in a tropical area on the thermal comfort of farrowing sows and piglets. Twelve sows and forty-eight piglets were observed during summer in the Southeast region of Brazil. Climate variables, thermal comfort and surface temperature (sows and piglets) were assessed. The type of roofs clearly affected the piglets' surface temperature during all studied periods, but the results were not similar in the sows' surface temperature. Temperature and humidity index found was high in the building with fiber-cement tiles. The pen location in the housing also influenced the piglet surface temperature. Controlling temperature fluctuation in piglet housing is crucial; therefore, providing adequate rearing environment in tropical condition might help pig productivity as well as farmer profitability.
KEYWORDS
pig production; roof material; surface temperature; thermal comfort; tropical conditions
