Diurnal Fluctuations in Rectal Temperature of Sahel Goats During the Hot Dry Season of the Semi-arid Zone

  • N A Ojo
  • H G Ligari


Experiments were performed on 10 adult Sahel goats with the aim of determining their diurnal temperature fluctuations during the hot dry season. The rectal temperatures (RT) were recorded with a standard clinical thermometer every hour from 06:00 to 19:00 hours. The RT of goats rose gradually from its minimum value of 38.5 ± 0.0 C at 08:00 hours and attained its peak value of 39.2 ± 0.0 C at 16:00 hours (p<0.001). The RT rose concurrently with increase in ambient temperature. The overall mean RT obtained was 39.1 ± 0.0C. The diurnal fluctuation in the rectal temperature of the Sahel goats was 1.3 ± 0.1 C. There was o neither positive correlation between the minimum and maximum RT values obtained from individual animals (r = 0.4152, p = 0.2328), nor for the hourly recordings (r = 0.186, p = 0.5429). The result indicated a slight diurnal rhythm in the rectal temperature of the Sahel goat. The low diurnal range of 0.4 ± 0.0 C suggests that the hot dry season is not thermally stressful to the Sahel goat.

Keywords: Diurnal fluctuations, rectal temperature, Sahel goat, hot dry season, Sahel zone

Sahel Journal of Veterinary Sciences Vol. 5 (1) 2006 pp. 39-43

Journal Identifiers

print ISSN: 1117-6210