Journal of Animal, Poultry & Fish Production

Journal Information
EISSN : 2314-8004
Current Publisher: Zagazig University Medical Journal (10.21608)
Total articles ≅ 22
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Ali Ali El-Raghi Abdullah Ali Ghazy Ibrahim Atta Abu El-Naser
Journal of Animal, Poultry & Fish Production, Volume 9, pp 9-15; doi:10.21608/japfp.2020.119467

Abstract:
The aim of the current study was to estimate the genetic parameters and evaluate various desired-gain selection indices for pre-weaning live body weights of Zaraibi male kids in Egypt. From 2005 to 2012, data of 763 does mated with 75 bucks of Zaraibi goats raised at El-Serw Experimental Station belonging to the Animal Production Research Institute were collected. Data were analyzed with REML using animal model to determine genetic parameters and using SAS to construct different desired-gain selection indices. Direct heritability (h2d) for BW, W30, W60 and WW were 0.25, 0.22, 0.31 and 0.35, respectively. Corresponding maternal heritability (h2m) for aforementioned traits were 0.145, 0.141, 0.099 and 0.073, respectively. While total heritability (h2t) above traits were 0.25, 0.38, 0.48, 0.49 and 0.34, respectively. The direct-maternal genetic correlations (rdm) were positive for W30 (0.35) and W60 (0.47), while negative for BW (-0.23) and WW (-0.19). Genetic correlations (rd1d2) among studies traits ranged from 0.80 to 0.95, while phenotypic correlations (rp1p2) among all traits ranged from 0.69 to 0.84. Comprisable between selection indices was the highest number of generations required (T) to attain the pre-estimated goals was 5.6143 in I4. In contrast, the lowest number of generations required (T) was 2.0220 in I14. Therefore, I14 was considered the best selection index lead to save time and efforts for genetic improvement of studied traits in Zaraibi male kids in Egypt.
R. A. M.A. Ayoub Tharwat
Journal of Animal, Poultry & Fish Production, Volume 9, pp 1-8; doi:10.21608/japfp.2020.119466

Abstract:
This study was carried out to investigate the effect of administration of progesterone (P4) and prostaglandin F2α (PGF2α) hormones on ewe estrus synchronization during summer season in Egypt. The study was performed on thirty four non-pregnant or lactating local ewes, 2 - 4 years old and 42.1 ± 1.8 kg average live body weight. Ewes were randomly divided into three groups as follows: natural estrus (control n = 10), intervaginal progesterone sponges (P4 = 12 ewes) for 12 days and two injections of PGF2α (12 ewes) 12 days apart. Parameters of estrus, conception and body weight of lambs were measured. Results showed that the percentage of estrus signs exhibition in PGF2α group reached 83.3%, while the lowest percentage (60%) was observed in control group (P
R. A. M.A. Ayoub Tharwat
Journal of Animal, Poultry & Fish Production, Volume 8, pp 1-8; doi:10.21608/japfp.2019.59599

Abdel-Rahim M., A. Hanafy, A. Abdel-Ghany, H. Khalil
Journal of Animal, Poultry & Fish Production, Volume 6, pp 13-20; doi:10.21608/japfp.2017.7418

Ibrahim M., A. Eid, K. Mohamed, B. Abd-Elfattah
Journal of Animal, Poultry & Fish Production, Volume 6, pp 7-12; doi:10.21608/japfp.2017.7415

El-Attar A., A. Badran, A. Mahdy, A. El-Barbary
Journal of Animal, Poultry & Fish Production, Volume 6, pp 1-6; doi:10.21608/japfp.2017.7414

Badawi Lobna, E. Bakr, M. Mousa, M. Abdel Ghaffar
Journal of Animal, Poultry & Fish Production, Volume 5, pp 9-16; doi:10.21608/japfp.2016.7420

Amer A., Gaber Hassanen, M. Salem, Heba Abd Elnabi, E. Eissa
Journal of Animal, Poultry & Fish Production, Volume 5, pp 17-23; doi:10.21608/japfp.2016.7421

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