Effect of a probiotic in diets for heat stressed pigs on performance, body temperature and respiratory frequency

Keywords: pigs, probiotics, body temperature, respiratory rate, productive behavior


The addition of a probiotic to the diet of heat-stressed pigs was evaluated on body temperature, respiratory rate, and productive performance. Eighty pigs of 22 kg BW were assigned to the following treatments: 1) housed in thermoneutral conditions (TN) fed with a conventional diet (TN-C); 2) TN, conventional diet added with probiotic (TN-P); 3) housed under heat stress (HS) conditions, conventional diet (HS-C); 4) HS, diet added with probiotic (HS-P). Twenty pigs were used per treatment. Respiration rate and body temperature were recorded, and productive performance was measured. The body temperature of HS pigs decreased by the addition of the probiotic (P<0.05). Although no differences were observed between treatments (P>0.05), the respiration rate was higher at 1700 h than at 0700 h (P<0.05). The addition of the probiotic increased daily weight gain and feed efficiency (P<0.01). It is concluded that the addition of probiotic to diets for HS pigs improves their weight gain and feed conversion.


Download data is not yet available.


Barba-Vidal, E., S. M. Martín-Orúe, L. Castillejos. 2019. Practical aspects of the use of probiotics in pig production: A review. Livest. Sci. 223: 84-96.
Horowitz, M., L. Eli-Berchoer, I. Wapinski, N. Friedman, E. Kodesh. 2004. Stressrelated genomic responses during the course of heat acclimation and its association with ischemic-reperfusion cross-tolerance. J. Appl. Physiol. 97: 1496-1507.
Morales, A., N. Ibarra, M. Chávez, T. Gómez, A. Suárez, J. A., Valle, R. L. Camacho, and M. Cervantes. 2018. Effect of feed intake level and dietary protein content on the body temperature of pigs housed under thermo neutral conditions. J. Anim. Physiol. Anim. Nutr. 98, e718-725. doi: 10.1111/jpn.12824.
NRC. 2012. Nutrient requirements of swine. 11th ed. Washington: National Academies Press.
Pearce, S. C., N. K. Gabler, J. W. Ross, J. Escobar, J. F. Patience, R. P. Rhoads and L. H. Baumgard 2013. The effects of heat stress and plane of nutrition on metabolism in growing pigs, J. Anim. Sci. 91(5): 2108–2118.
Renaudeau, D.; J. Gourdine, J. Fleury, S. Ferchaud, Y. Billon, J. Noblet, H. Gilbert. 2014. Selection for residual feed intake in growing pigs: effects on sow performance in a tropical climate. J. Anim. Sci. 92(8): 3568-3579.
Steadman, R. G. 1979. The assessment of sultriness. Part I: A temperatura-humidity index based on human physiology and clothing science. J. Appl. Meteor. 18: 861-873.
Xin, H., and J. Harmon. 1998. Livestock Industry Facilities and Environment: Heat Stress Indices for Livestock. Iowa State University.
Yu, J., P. Yin, F. Liu, G. Cheng, K. Guo, A. Lu, X. Zhu, W. Luan and J. Xu. 2010. Effect of heat stress on the porcine small intestine: A morphological and gene expression study. Comp. Biochem. Physiol. 156: 119–128.
How to Cite
González Aragón, Fernanda, Adriana Morales Trejo, José Alan Valle Fimbres, Ana Cecilia Hernández Coronado, Ernesto Avelar Lozano, Hugo Bernal Barragán, Nydia Corina Vásquez Aguilar, and Miguel Cervantes Ramirez. 2022. “Effect of a Probiotic in Diets for Heat Stressed Pigs on Performance, Body Temperature and Respiratory Frequency ”. Latin American Archives of Animal Production 30 (Supl. 1), 167-70. https://doi.org/10.53588/alpa.300522.