Efeito do estresse térmico por calor na suinocultura: revisão de literatura

Abstract

Pig farming in areas with a tropical climate is often exposed to high temperatures. The increase in ambient temperature above the thermoneutrality zone causes behavioral changes that alter feed consumption and consequently a reduction in performance. With this, the objective was to carry out a bibliographical survey of the effects of heat stress in pig farming. Thermal stress caused by high envinmental temperatures causes reproductive problems (such as low birth rates, damage to sperm and oocytes), metabolic changes, changes in carcass composition, intestinal barrier function and reduction in productive performance, thus being responsible for economic losses. For pig farmers around the world. However, in order to minimize the effects of heat stress, some environmental and nutritional strategies can be used to improve health and performance. As a result, the thermal stress caused by the increase in temperature causes the compromise of several parameters in pig farming, but with the use of management strategies, its effects can be minimized. Key words: high temperatures; unproductivity; meat quality, pings