Asian Journal of Animal and Veterinary Advances1683-99191996-3289Academic Journals Inc.10.3923/ajava.2017.103.108El-RatelI.T. DorraTork M. SheteifaM.A. MansourAmira M. 22017122Background and Objective: Ovulation and fertilization rates in rabbits are the most important traits which affect directly the viability of
their youngs and litter size at birth. This study was carried out to evaluate different reproductive performance parameters of doe rabbits
injected with receptal (GnRH analogue) at mating on day 0, 5 or 10 of post-partum. Methodology: Total of 48 sexually mature NZW
rabbit does were divided into two groups, control (n = 24) and GnRH (n = 24). The 1st group was i.m., injected with 0.25 mL saline/doe
at mating, while the 2nd was injected with 0.25 mL receptal/doe at mating. Immediately after injection, all does were allowed to natural
mating by fertile bucks. Does in each of control and GnRH groups were divided into 3 sub-groups (n = 8) to mate on days 0, 5 and
10 post-partum. After parturition, kindling rate, litter size at birth (total and live) and weaning as well as viability rate were recorded. Blood
samples were collected from does in each group for progesterone determination in blood serum. Results: Overall mean of all reproductive
performance parameters were better (p≥0.05) in GnRH than in control group, the best for does mated on day 10 post partum, while the
poorest for those mated on day 5. The effect of interaction between GnRH treatment and mating day was not significant on all
reproductive performance parameters. Overall mean of progesterone concentration in serum was not affected by GnRH treatment
pre-mating (0 day) and on 7 day post-mating. On days 14, 21 and 28 post-mating, progesterone was higher (p<0.05) in GnRH than in
control and in does mated on day 10 post-mating as compared to other mating days. Conclusion: Rabbit does injected with GnRH
analogue (0.25 mL receptal/doe at mating) on day 10 post-partum resulted in remarkable improvement in in vivo reproductive
performance in terms of higher kindling rate, litter size and kid viability rate at birth and weaning.]]>Sirotkin, A.V., P. Chrenek, A. Kolesarova, F. Parillo, M. Zerani and C. Boiti,2014148188196Boulbina, I., H. Ain-Baziz, I. Iles, S. Zenia, R. Belabbas and S. Temim,2012Oryctolagus cuniculus).]]>2012pp: 335339Kandiel, M.M.M.,201310288296Robert, V.K.,20156309320Mobarak, H., A.G. Miah, A. Chowdhury, S. Begumu, R. Haydar, A. Jemy and U. Salma,201536774Tarlatzis, B.C. and E.M. Kolibianakis,200715765Zhang, Z. and X. Shang,20095604606Quintela, L., A. Pena, M. Barrio, M.D. Vega, R. Diaz, F. Maseda and P. Garcia,200141247257Rebollar, P.G., A. Dal Bosco, P. Millan, R. Cardinali and G. Brecchia et al.,201277292298Ajuogu, P.K. and F.O. Ajayi,201064142Ndors, L., P.K. Ajuogu and V.N. Nyeche,201538185Oguike, M.A. and N.L. Okocha,20083412415Abou Bakr, A.A. and T.S.T. Seleem,20082008pp: 179192Awojobi, H.A. and D.O. Adejumo,200941418SAS.,2004Duncan, D.B.,195511142Zapletal, D. and A. Pavlik,2008104306315Abdel-Glil, A.A.,19931993McNitt, J.I. and S.D. Lukefahr,19906815051512Zapletal, D., V. Adamec and D. Klecker,1990Oryctolagus cuniculus) during year.]]>51123132Korany, M.A.T.,19801980Broeck, L. and P. Lainpo,1975398490Elkomy, A.E. and M.E. El-Speiy,20152015Duran-Pasten, M.L. and T. Fiordelisio,20132+ signaling patterns and gonadotropin secretion in pituitary gonadotrophs. Functional adaptations to both ordinary and extraordinary physiological demands.]]>2013Kalaba, Z.M. and A.E. Abdel-Khalek,20116101010108Singh, P. and A. Krishna,20102010Vasudevan, K. and J.M. Sztein,2012In vitro fertility rate of 129 strain is improved by buserelin (gonadotropin-releasing hormone) administration prior to superovulation.]]>46299303Coskun, M. and M. Kanter,2005214Goncalves, P.B.D., B.G. Gasperin, R. Ferreira and J.T. Santos,20123354361Okiyi, P.C. and H.C. Edoh,201464145Iyeghe-Erakpotobor, G.T., E.O. Oyedipe, L.O. Eduvie and D. Ogwu,20051142152Seleem, T.S.T.,20032003Mmereole, F.U.C.,200942134137Foxcroft, G.R. and H. Hasnain,197333315318Hafez, E.S.E.,19875th Edn.,Ashour, G., A.M. Hassanein, H.M. Gad, A.M. Saeed and M.M. Shafie,1995327790Habeeb, A.A. and K.A. El-Masry,199111429443Wiltbank, M.C., A.H. Souza, J.O. Giordano, A.B. Nascimento and J.M. Vasconcelos et al.,20129231241