Abstract

JAHUIRA ARIAS, Martha Helena; ARIAS TUCO, Janeth; DIAZ GARMENDIA, Francis Renato  and  CHAUCA FRANCIA, Lilia Janine. Analysis of temperature-humidity on mortality any body growth of guinea pigs (Cavia porcellus) of synthetic line in Moquegua, Peru. Cienc. Tecnol. Agropecuaria [online]. 2022, vol.23, n.1, e2014.  Epub Dec 31, 2021. ISSN 0122-8706.  https://doi.org/10.21930/rcta.vol23_num1_art:2014.

This study analyzed the relationship of temperature (T), relative humidity (RH) and temperaturehumidity index (THI) on mortality and the body weight of guinea pigs (Cavia porcellus) of the synthetic line, 157 guinea pigs were evaluated between October 2019 and March 2020. The variability and association level of T, RH and THI, mortality and body weight were analyzed. The data was processed in the STATA IC14. The results of T, RH and THI recorded monthly showed a significant variability (p < 0.001), the same way the body weight between males and females (p < 0.05). Statistically significant correlation coefficients were recorded between weight body male and T at week 4 (r = 0.345) and week 6 (r = - 0.352), RH at week 4 (r = 0.388) and week 6 (r = - 0.387), THI at week 4 (r = - 0.387) and week 6 (r = - 0.374). No correlation was demonstrated between mortality and THI (p > 0.05) we also observed the mortality (%) increase at THI > 72. The body weight in male guinea pigs showed a linear trend at THI ≤ 72 (r2 = 0.993) and THI > 72 (r2 = 0.994) as well as the weight in female guinea pigs THI ≤ 72 (r2 = 0.996) and THI > 72 (r2 = 0.997).

Keywords : animal performance; environmental factors; guinea pigs; humidity; mortality; temperature; body weight.

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