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Seasonal variations in rectal temperature of Yankasa sheep

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Abstract

From measurements of rectal temperature (Tre) at 06:00h (06:00Tre) and at 14:00h (14:00Tre), meteorological stress was determined in six Yankasa ewes in terms of per cent rise of 14:00Tre over 06:00Tre reference values during the harmattan and hot-dry seasons. Absolute and mean Tre values were significantly higher (P<0.05) during the harmattan than the hot-dry season. In both seasons, mean 14:00Tre was significantly higher (P<0.01) than 06:00Tre. The mean diurnal difference between 14:00Tre and 06:00Tre, i.e. ΔTre was about 1°C during the harmattan but ranged between 0.5 and 0.7°C during the hot-dry season. All animals were observed to shiver during harmattan nights.

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Authors and Affiliations

  1. Veterinary Physiology and Pharmacology, Ahmadu Bello University, Zaria, Nigeria

    M. O. Igono, E. C. I. Molokwu & Y. O. Aliu

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  1. M. O. Igono
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  2. E. C. I. Molokwu
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  3. Y. O. Aliu
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Igono, M.O., Molokwu, E.C.I. & Aliu, Y.O. Seasonal variations in rectal temperature of Yankasa sheep. Vet Res Commun 6, 223–226 (1983). https://doi.org/10.1007/BF02214916

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  • DOI: https://doi.org/10.1007/BF02214916

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