International E-publication: Publish Projects, Dissertation, Theses, Books, Souvenir, Conference Proceeding with ISBN.  International E-Bulletin: Information/News regarding: Academics and Research

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)

Abstract

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.

References

  1. Osinowo O.A. (1992)., Problems and Prospects of the Development of Small Ruminants in Nigeria., Proceedings of Workshop on Nigerian Livestock Industry Problems and Prospects. 26th - 27th feb.
  2. Squires J.E. (2003)., Applied Animal Endocrinology., Department of Animal and Poultry Science, University of Guelph. Guelph, Ontario Canada.
  3. Brook C.D.G. and Marshall N.J. (2001)., Essential of Endocrinology., Blackwell Publishers USA., 35-38.
  4. Zarkawi M. and Soukouti A. (2001)., Serum Progesterone Level using Radioimmunoassay during Oestrus Cycle of Indigenous Damascus Does., N. Z. J. Agricultural Research, 44, 165-169.
  5. Lye S.J. (1996)., Initiation of parturition., Animal Reproductive Science, 42, 495-503.
  6. Albrecht E.D. and Pepe G.J. (2010)., Estrogen regulation of placental Angiogenesis and fetal Ovarian Development during Primate Pregnancy., International Journal of Developmental Biology, 54(2-3), 397-408. Accessed online 5th June 2017: http:// www.ncbi.nih.gov/pubmed/19876841
  7. Marai I.F.M., El-Darawany A.A., Fadiel A. and Abdel-Hafez M.A.M. (2007)., Physiological Traits as affected by Heat Stress in Sheep - a review., Small Ruminant Res., 71, 1-12.
  8. Sharma A., Kumar P., Singh M. and Vasishta N.K. (2015)., Haemato-biochemical and Endocrine Profiling of North Western Himalayan Gaddi Sheep during various Physiological/Reproductive Phases., Open Veterinary Journal, 5(2), 103-107.
  9. Goff J.P. and Horst R.L. (1997)., Physiological Changes at Parturition and their Relationship in Metabolic Disorders., Journal of Dairy Science, 80(7), 1260-1268.