The effect of the pheromones of male Awassi sheep and Shami goats on the secretion of luteinizing hormone (LH) and the growth of ovarian follicles in Awassi ewes during the reproductive season.

Authors

  • Hasan Harba Hama University
  • Muhammad Musa Tishreen University
  • Moataz Zarqawi Tishreen University

Abstract

The research aims to determine the effect of the pheromones of male Awassi sheep and Shami goats on the secretion of luteinizing hormone (LH) and the growth of ovarian follicles in Awassi sheep ewes during the reproductive season. The study was conducted on three groups of equal number n = 17 (during the reproductive season): The first group (Awassi ram wool extract), 15 ml of ram wool extract was placed on a piece of gauze and placed inside a mask specially designed for the experiment to be placed and fixed directly on the nose. The second group (Shami goat hair extract), 15 ml of goat hair extract was placed on a piece of gauze and placed inside a mask specially designed for the experiment to be placed and attached directly to the nose, and the third group (Awass rams). Calibration of LH was performed immediately before starting the treatment and 1, 10, and 20 hours after the treatment was applied. The ovaries of five ewes, randomly selected from each group, were examined from 0-24-48 hours after the end of treatment using an ultrasound device. The follicles were divided according to their diameter into small follicles with diameters less than 3 mm, medium follicles whose diameters ranged from 3 to 6 mm, and large follicles with diameters greater than 6 mm. The results showed a direct and clear increase in LH concentrations after the start of the experiment in females in the study groups. The results also showed that follicle growth and maturation began immediately after applying the treatment in the experimental groups. It is concluded from this study that the pheromones extracted from the wool of rams and the goats of Shami goats had a better effect in stimulating the response of female Awassi sheep, which paves the way for their use as a substance in reproductive management in Awassi females.

Downloads

Published

2024-11-02

How to Cite

حربا ح. ., محمد موسى, & معتز زرقاوي. (2024). The effect of the pheromones of male Awassi sheep and Shami goats on the secretion of luteinizing hormone (LH) and the growth of ovarian follicles in Awassi ewes during the reproductive season. Tishreen University Journal -Biological Sciences Series, 46(4), 113–122. Retrieved from https://journal.tishreen.edu.sy/index.php/bioscnc/article/view/17513

Issue

Vol. 46 No. 4 (2024): Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to the Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series   

 Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series  .  The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series    Publisher

journal uses a CC BY-NC-SA license which mean

You are free to:

  • Adapt — remix, transform, and build upon the material
  •  
  • The licensor cannot revoke these freedoms as long as you follow the license terms.

 

  • Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • NonCommercial — You may not use the material for commercial purposes.
  • ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
  • No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.