Abstract
The experiment was carried out with the aim of investigating the effect of ascorbic acid (AA) on fluctuations in rectal temperature (RT) of pigs during the harmattan season. Sixteen pigs administered with AA at the dose of 250 mg/kg orally and individually served as experimental animals, and 13 others administered orally with sterile water were used as control animals. The RT was measured from all the pigs at 06:00, 13:00 and 18:00 h twice in a week for three consecutive weeks. The lowest overall mean RT value of 37.52±0.90 °C was obtained at 06:00 h in the experimental pigs, while the corresponding value in control pigs was 37.63±0.90 °C ( P>0.05). The maximum RT values of 38.75±0.18 °C and 39.27±0.11 °C were recorded at 13:00 h in experimental and control pigs, respectively ( P<0.05). The results indicate that AA modulates the body temperature by decreasing the maximum RT value in pigs exposed to harmattan stress, and may alleviate the risk of adverse effects of the stress on health and productivity of pigs during the cold-dry season.
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