Home    eJManager.com Add Your Journal   |    Follow on Twitter   |    Subscribe to List

Directory for Medical Articles

Open Access

Original Article

Alexandria J Vet Sci. 2013; 39(1): 124-132

Using Double Dose of GnRH for Reducing Incidence of Cystic Ovaries in Cows

Wael MB Noseir, Kamal K Metwally, Negm N Shaker.

Cystic ovarian disease (COD) has been recognized as a one of most important problem in dairy farm, it is a managerial and financial problem.120 Holstein cows with average age between 3 to 5 years were used in this study to determine whether giving GnRH at 14th day and 21st day after parturition (using two different types of GnRH) has a role in decreasing incidence of cystic ovaries during days open, and is there is any effects of this program on fertility parameters, (the interval from calving to conception, number of service per conception, first service conception rate,). Also, we refered to the season of milking to see how it affects in the incidence of COD. The findings of this study suggest that using two dose of GnRH (Receptal or Cystorlin), at 14 and 21 days after parturition did not give a significant difference comparing with the costs of the programs in preventing COD except a moderate result by using Cystrolin especially with cow more than one season which decreased the incidence by 11%. COD may reach to 42% in herd especially the high yielding Holstein cow. No significant effect on fertility parameters positively or negatively by using GnRH in postpartum period.

Key words: GnRH,cystic ovaries, cows

Full text links

Share this Article

ScopeMed Home
Follow ScopeMed on Twitter
Article Tools
Job Opportunities/Service Offers
eJManager OJMS
eJPort Journal Hosting
About ScopeMed
Terms & Conditions
Privacy Policy
Suggest a Journal
Publisher Login
Contact Us

The articles in Scopemed are open access articles licensed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.
ScopeMed is a Service of eJManager LLC Publishing for Scientific Publications. Copyright © ScopeMedź Information Services.
Scopemed Buttons