Abstract
EFFECT OF DIFFERENT HORMONAL REGIMES ON FERTILITY IMPROVEMENT OF ARTIFICIALLY INSEMINATED SUB-FERTILE NEW ZEALAND DOE RABBITS

*Amal M. Hassan, Abd El- Hamid I. S. and El-Bahrawy K. A.

ABSTRACT

Forty eight sub-fertile doe rabbits with no conception rate, repeated mating and low receptivity to male during natural mating were used in this experiment. The females were allocated into three experimental groups for different treatments for improving their reproductive performance; namely; the first group was treated with pregnant mare serum gonadotropin PMSG, while the second group was treated by PGF2α + PMSG. The third group received (5ml/doe/day) of sunflower oil (SF) for 5 days, followed by PMSG injection. After 54 h from the PMSG injection in all treatments, all does were artificially inseminated with diluted raw semen followed by Gn-RH dose for induction of ovulation. The results showed that (PMSG) treated group demonstrated the highest (P<0.05) receptivity (69.57%), followed by the (PGF2α + PMSG) treatment (40.00%). Both treatments were significantly higher than using (SF + PMSG) with only (10%) observed receptivity. Mathematically, the overall mean for the effect of different treatments regardless of the vulva colour showed superiority of the (PMSG) treatment (47.91%), as compared to the (PGF2α + PMSG) treatment receptivity (31.25%). In the same frame, mathematically the overall indication of red coloured vulva gave a high indication of receptivity of New Zealand doe rabbits (66.66%), compared to the white or pink colour of the vulva, showing receptivity percentage (31.25%) and (20.83), respectively (Table 3). Both (PMSG) and (PGF2α + PMSG) groups showed a significant superiority for conception rate (73.91% and 66.67%, respectively) compared to the (SF + PMSG) treatment with only (10%) conception. The same aforementioned effect trend of the treatments was observed for litter size after parturition, being (5.08±0.71, 4.47±0.88 and 1.4±1.07) for (PMSG), (PGF2α + PMSG) and (SF + PMSG) treatments, respectively. In conclusion, both (PMSG) and (PGF2α + PMSG) treatments promote the sexual receptivity to sub-fertile doe rabbits, specially does with low receptivity and repeated refusal of natural mating. It could be recommended that, an appropriate hormonal treatment and application of AI using fresh diluted semen can be a solution for fertility improvement and increasing fertility potential of sub-fertile doe rabbits under semi-arid conditions which may affect the normal reproductive behavior and the reproductive efficiency of rabbit herds.

Keywords: Artificial insemination, Doe rabbits, Sunflowers, Synchronization, Litter size, Semen, Conception rate.


[Full Text Article]

Login





Forgot Password  |  Register

Indexing

Best Paper Awards

European Journal of Biomedical and Pharmaceutical Sciences (EJBPS) will give best paper award in every issue in the form of money along with certificate to promote research activity of scholar.

Best Article of current issue :

Tangudu Nagabhusana Rao

Download Article : Click here

News & Updation

  • AUGUST ISSUE PUBLISHED

    AUGUST 2018 Issue has been successfully launched on 1 August 2018

  • EJBPS New Impact Factor

    Its our Pleasure to Inform you that EJBPS Impact Factor has been increased from 4.382 to 4.918 due to high quality Publication at International Level.

  • Index Copernicus Value

    EJBPS Received Index Copernicus Value 77.3, due to High Quality Publication in EJBPS at International Level

  • Journal web site support Internet Explorer, Google Chrome, Mozilla Firefox, Opera, Saffari for easy download of article without any trouble.

    .

  • Article Invited for Publication

    Dear Researcher, Article Invited for Publication  in EJBPS coming Issue.

     

UG/PG/Ph.D Research Publication

Research Scholar of UG/PG/Ph.D can Submit their Research Article/Review Article/Case Study/Short Communication for Publication in EJBPS

Downloads

Copyright From

Covering Letter

                        Author Instruction 
 

PLAGERLUM REPORT