Volume 3, Issue 5 (Research on Animal Production 2013)                   rap 2013, 3(5): 65-76 | Back to browse issues page

XML Persian Abstract Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
Hassanpour Y, Jafari Ahangari Y, Ahmadi Hamedani M. (2013). Monthly Changes of Testicular Length, Scrotal Circumference and Semen Characteristics of Dallagh Ram in Breeding and Non Breeding Season. rap. 3(5), 65-76.
URL: http://rap.sanru.ac.ir/article-1-85-en.html
Monthly Changes of Testicular Length, Scrotal Circumference and Semen Characteristics of Dallagh Ram in Breeding and Non Breeding Season
Yahiya Hassanpour , Yosef Jafari Ahangari , Mahnaz Ahmadi Hamedani
Islamic Azad University, Ghaemshahr Branch
Abstract:   (6204 Views)
     The aim of this study was investigation of monthly changes of semen characteristics, length and scrotal circumference in Dallagh rams. Semen samples were collected from four healthy and mature rams of 3-4 years old with an average body weight of 45 ± 5 kg with an electro ejaculator in once three weeks since June to November 2008. Results showed that the effect of months on scrotal circumference, testicular length, viability, motility, wave motion and minor defects spermatozoa were not significant (p>0.05). Maximum testicular length, motility and the minimum minor defect were observed in October while the maximum viability and scrotal circumference were observed in July. Effect of months on major defects was significant (p<0.05) and the maximum major defects were observed in June. The effect of months on testis and semen characteristics were not significant. It can be  concluded that the reproductive activities of Dallagh rams were not affect by season probably and they had reproductive capability throughout months of experiment. Therefore it seems Dallagh rams have lower sensitivity to changes of day length and breeding season and canbe used for mating ewes in favorable time until lambing occur in suitable season.
 
Keywords: Length and scrotal circumference, Semen characteristics, Dallagh ram, Breeding and non breeding season
Full-Text [PDF 347 kb]   (1372 Downloads)    
Type of Study: Research | Subject: Special
Received: 2013/01/26 | Revised: 2019/02/20 | Accepted: 2013/04/29 | Published: 2013/04/29
Add your comments about this article : Your username or Email:
CAPTCHA
Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2024 CC BY-NC 4.0 | Research On Animal Production

Designed & Developed by : Yektaweb