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Fig. 2 | Journal of Animal Science and Biotechnology

Fig. 2

From: Supplementation of vitamin E or a botanical extract as antioxidants to improve growth performance and health of growing pigs housed under thermoneutral or heat-stressed conditions

Fig. 2

Effect of environment on respiration rate and rectal temperature measured on d 1, 2, 3, 4, 5, 6, 7, 14, 21 and 28. Environment × day interaction (P < 0.001). Measurements were taken between 1300 and 1600 h (peak of heat stress during the day). Numbers represent least squares means ± SEM of 64 pigs. a–dMeans with different superscripts are different (P < 0.05). A Respiration rate on d 0 was not different between treatments (P = 0.128; 19.64 and 18.36 respirations/30 s for the heat-stressed and thermo-neutral environment, respectively). Respiration rate in heat stressed pigs was greater than pigs housed under thermos-neutral conditions from d 1 through d 28. Respiration rate decreased over time within both environments. B Rectal temperature on d 0 did not differ between environmental treatments (P = 0.312; 39.26 and 39.40 ºC for the heat-stressed and thermo-neutral environment, respectively). Rectal temperatures in heat stressed pigs were greater in comparison with those in the thermo-neutral environment for all days of measurement. Rectal temperature decreased over time for both environments

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Journal of Animal Science and Biotechnology

ISSN: 2049-1891