Evaporative cooling system for gestating and lactating sows: a systematic review

Mendes, M. F. dos S. A. and Oliveira, D. H. de and Cruz, F. L. and Mendes, M. A. dos S. A. and Ribeiro, B. P. V. B. and Ferreira, R. A.

Ciencia Rural (2020) 50:

DOI: 10.1590/0103-8478cr20190830

Abstract

Climatic characteristics of the production sites of pigs influence the yield of the system, with breeding sows being a category extremely sensitive to high temperatures, especially when their upper critical temperature is reached. This review evaluated the effects of the evaporative cooling system on environmental, physiological and performance parameters in breeding sows. By means of this review, a bibliographic search was performed using the following keywords: sow; swine; gilt and pig combined individually with the expression ’evaporative cooling’. A total of 11 papers met the prerequisites determined to compose the systematic review and the studies involved gestating and lactating sows maintained in environments that presented ambient temperatures between 21.5 and 34.8 degrees C and relative humidity between 32.2 and 84.2%. The evaporative cooling system was used in order to cool the macro or micro environment. It can be concluded that the use of evaporative cooling system promotes increase in feed intake per lactating sow, decrease in weight loss in lactation, increase of weight of piglets at weaning, temperature reduction of the barns and decrease of the respiratory rate of the sows. For gestating sows, no changes in reproductive performance were reported.

Citation

Mendes, M. F. dos S. A., Oliveira, D. H. de, Cruz, F. L., Mendes, M. A. dos S. A., Ribeiro, B. P. V. B., & Ferreira, R. A. (2020). Evaporative cooling system for gestating and lactating sows: a systematic review. Ciencia Rural, 50(10). https://doi.org/10.1590/0103-8478cr20190830 pregnancy, Animal Physiology and Biochemistry (Excluding Nutrition) [LL600], Animal Reproduction and Embryology [LL250], female fertility, gestation, gilts, hogs, pigs, reproductive performance, sows, swine, systematic reviews, lactation, Meat Producing Animals [LL120], air temperature, Farm and Horticultural Structures [NN300], relative humidity, pig housing, piggeries, sties, swine housing, cooling systems, evaporative coolers, evaporative cooling

Keywords

• pregnancy
• Animal Physiology and Biochemistry (Excluding Nutrition) [LL600]
• Animal Reproduction and Embryology [LL250]
• female fertility
• gestation
• gilts
• hogs
• pigs
• reproductive performance
• sows
• swine
• systematic reviews
• lactation
• Meat Producing Animals [LL120]
• air temperature
• Farm and Horticultural Structures [NN300]
• relative humidity
• pig housing
• piggeries
• sties
• swine housing
• cooling systems
• evaporative coolers
• evaporative cooling