Factors affecting in-vivo fertility of crossbred Egyptian - Italian buffalo semen
Journal Title: Asian Pacific Journal of Reproduction - Year 2017, Vol 6, Issue 6
Abstract
Objective: To assess the effect of region, season and year of insemination on in-vivo fertility of Italian-Egyptian crossbred buffalo semen. Methods: A total number of 4 799 female buffaloes were inseminated by frozen semen with at least 50% post-thaw motility of Egyptian-Italian crossbred bulls in three localities in Delta, lower Egypt (El-Behira, El-Sharkia and Damietta) during the period of 2013, 2014 and 2015. The pregnancy rate after two months was evaluated during the four seasons. Results: The rate of pregnancy was significantly (P<0.000 1) differ among the three localities. The effect of year of insemination on pregnancy rate was significantly higher during 2014 and 2015 than 2013 in El-Sharkia and El-Behira. But in Damietta, the rate of pregnancy was significantly higher in 2014 than 2013 and 2015. There were no significant differences among seasons in El-Behira and Damietta governorates but there was significant (P<0.05) differences in pregnancy rate in El-Sharkia. It was higher in summer, spring and autumn than in winter. Conclusions: Localities, year of insemination and season of the year have effects on fertility of crossbred Egyptian-Italian buffalo semen.
Authors and Affiliations
GA El-Sisy, KGhM Mahmoud, AAE El-sokary, MF Nawito, YF Ahmed
Keywords
Related Articles
- EP ID EP245112
- DOI 10.4103/2305-0500.217341
- Views 199
- Downloads 0
Oestrous cycle of Wistar rats altered by sterol and triterpenes rich fraction of Adansonia digitata (Linn) root bark - A scientific rationale for contraceptive use
Objective: To investigate the effect of different fractions from the aqueous methanolic root bark of Adansonia digitata (Linn) on the estrous cycle of female Wistar rats and to elucidate their phytochemical content. Meth...
Effects of long-term exposure to radiofrequency radiations emitted by mobile Jammers on reproduction parameters in rats
Objective: To evaluate the effect of long-term exposure to radiofrequency radiations emitted from mobile jammers onrat's reproductive parameters. Methods: Eighty male rats were divided into neonatal group (n=20), immatur...
Secondary sex ratio of assisted reproductive technology babies
Objective: To assess the secondary sex ratio (SSR) of assisted reproduction technology babies within a fertility clinic in Melbourne, Australia. Methods: A retrospective cohort study was conducted on 3 369 babies who wer...
Effect of Vitex agnus-castus plant extract on polycystic ovary syndrome complications in experimental rat model
Objective: To investigate ameliorative effects of Vitex agnus-castus (VAC) and VAC containing pharmaceutical supplement (VPS) against polycystic ovary syndrome (PCOS). Methods: PCOS in the rats was induced by daily admin...
Effect of water extract of dates palm (Phoenix dactylifera) on semen characteristics and oxidative status in serum of male New Zealand rabbits under heat stress
Objective: To estimate the effects of the water extract of dates palm (Phoenix dactylifera) (DWE) on sperm quality parameters, testosterone level and serum antioxidants activities of New Zealand rabbits under heat stress...