Marina Cruvinel Assunção Silva

Estratégias para amenizar os efeitos do estresse por calor em matrizes suínas

The reproductive processes in swine is of fundamental importance in the economic performance of the activity. It is known that not enough just good nutritional standards and best management practices on the roster, but also achieve reproductive goals. The present study attempts to report appropriate bioclimatic practices to minimize the inconvenience caused by heat stress in sows. Among the factors that could cause reproductive disorders are highlighted changes in temperature, relative humidity and ventilation. The high ambient temperatures, which occur at certain times of the year, let the pigs out of their comfort zone heat, and may cause disorders in the reproductive performance. The adaptation of the facilities, taking into account the location, solar orientation, ceilings, roofing materials, trees, shading and natural ventilation, and practices such as fogging, ventilation, drip, cooling and floor using evaporative adiabatic processes are alternatives to minimize productive losses. Considering the importance of the sow in pig production process, and dependence of environmental and heat factors, it is necessary to better SILVA, M.C.A. et al. Estratégias para amenizar os efeitos do estresse por calor em matrizes suínas. PUBVET, Londrina, V. 7, N. 9, Ed. 232, Art. 1532, Maio, 2013. planning and monitoring the bioclimatic practices. The artificial factors should be a complement to the naturals, since the sows depends of these ways to express their genetic potential.