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Effect of physiological status on progesterone, Oestrogen and thermal indices of west African Dwarf (WAD) Sheep

Author Affiliations

  • 1Department of Animal Breeding and Physiology, University of Agriculture, Makurdi, Nigeria
  • 2Department of Animal Breeding and Physiology, University of Agriculture, Makurdi, Nigeria
  • 3Department of Animal Breeding and Physiology, University of Agriculture, Makurdi, Nigeria

Int. Res. J. Biological Sci., Volume 7, Issue (6), Pages 20-22, June,10 (2018)


This research aimed at investigating the influence of physiological status on progesterone, oestrogen and thermal indices of West African Dwarf (WAD) ewe. Random blood samples were collected from 90 ewes (30 each from non-pregnant, pregnant and lactating) semi-intensively reared by local farmers within Makurdi in Benue State. Pregnant ewes used were at their third trimester while the lactating ewes were at their second week of lactation. They were all within the age range of 2-4years old and 20-25kg body weight. Serum progesterone concentration revealed significant difference (P<0.05) with highest value (4.45 ± 0.010ng/ml) recorded during pregnancy. In another hand, serum oestrogen concentration recorded significant (P<0.05) difference with highest value (57.96 ± 1.11pg/ml) recorded during lactation. Analysis of rectal temperature showed significant (P<0.05) difference (38.54 ± 0.620C) during lactation. Respiratory rate showed higher values (35.67 ± 3.77cpm) during pregnancy than in other physiological stages. Similarly, pulse rate revealed higher values during pregnancy (103.80 ± 11.17Bpm). In conclusion, the study revealed that progesterone, oestrogen and thermal indices were greatly influenced by physiological status of WAD ewe.


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