Lavaf, A., Motavaselahgh, M., Salasel, B. (2015). Assesment of the artificial insemination timing on estrus synchronization in dairy cows using ovsynch procedure. , 4(15), 3-6. doi: 10.22092/aasrj.2015.105913
A. Lavaf; M. Motavaselahgh; B. Salasel. "Assesment of the artificial insemination timing on estrus synchronization in dairy cows using ovsynch procedure". , 4, 15, 2015, 3-6. doi: 10.22092/aasrj.2015.105913
Lavaf, A., Motavaselahgh, M., Salasel, B. (2015). 'Assesment of the artificial insemination timing on estrus synchronization in dairy cows using ovsynch procedure', , 4(15), pp. 3-6. doi: 10.22092/aasrj.2015.105913
Lavaf, A., Motavaselahgh, M., Salasel, B. Assesment of the artificial insemination timing on estrus synchronization in dairy cows using ovsynch procedure. , 2015; 4(15): 3-6. doi: 10.22092/aasrj.2015.105913

Assesment of the artificial insemination timing on estrus synchronization in dairy cows using ovsynch procedure

علوم و فنون دامپروری
Article 1, Volume 4, Issue 15, September 2015, Pages 3-6    PDF (607.62 K)
DOI: 10.22092/aasrj.2015.105913
Authors
A. Lavaf* ; M. Motavaselahgh; B. Salasel
Abstract
The aim of this study, was to determine the best artificial insemination time by ovulation synchronization (ovsynch) in dairy cows. Cows (n=204) at day 0 received an injection of GnRH (5 ml) and 7day later they get an injection of  PGF2α(2 ml) followed by concluder GnRH 48 hour after PGF2a administration. The general divided to 4 groups occurring to time of insemination 12, 14, 16 and 18 hour after last injection of GnRH respectively. 30 days after insemination pregnancy diagnose took place with ultrasonography by veterinarian. Result showed that conception rate for experimental groups were 37.73%, 40.82%, 44% and 40.38% respectively and was statistically different (44%) for group. Which inseminated 16 hour after GnRH (p<0.01). In conclusion this study showed that insemination of dairy cows 16 hour after last injection of GnRH in ovsynch  method maybe prepared
Keywords
Dairy cows- Ovsynch- Synchronization- Ovulation- Artificial insemination
Statistics
Article View: 6,864
PDF Download: 1,112


counter
Journal management system. designed by sinaweb