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 Abd El-Maksoud, A.M.S; S.M. Allam; G.E. Aboul-Fotouh and R.M. Abou-Zied (1998a). Evaluation of Nigella seeds (Nigella sativa L.) as a feed additive in diets of Nile tilapia (Oreochromis niloticus). Fayoum J. Agric. Res. & Dev. 12 (1) :170-185. |
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Abd El-Maksoud, A.M.S; S.M. Allam; G.E. Aboul-Fotouh and R.M. Abou-Zied (1998b). The effect of feeding diets containing chamomile flower (Matricaria chamomila L.) as a feed additive on growth, survival and feed utilization of Nile tilapia (Oreochromis niloticus). Fayoum J. Agric. Res. & Dev. 12 (2) :181-192. |
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Abd El-Maksoud, A.M.S; S.M. Allam; G.E. Aboul-Fotouh and R.M. Abou-Zied (1999). Effect of marjoram leaves (Majorana hortensis L.) as a feed additive on the performance of Nile tilapia (Oreochromis niloticus) fingerlings. Egyptian J.Nutr. And Feeds 2 (1):39- 47. |
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Abou Zied, R.M; A.M.S. Abd El-Maksoud and A.A.A. Ali (2003). Effect of virginiamycin or lacto-sacc on the growth performance of nile tilapia fish during the nursing period. The 9th conference on animal nutrition. Hurghada 14-17 October, 6 (special issue): 481- 489. |
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Abou Zied, R. M., A.M.S. Abd El-Maksoud and A.A. A. Ali (2005). Effect of stocking rates of Nile tilapia (Oreochromis niloticus L.) and grey mullet (Mugil cephalus L.) on their performance in polyculture earthen ponds. Annals of Agric. Sci., Moshtohor 43 (3): 1057-1066. |
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Abou Zied, R. M. (2006). Effect of feeding regimes on reproductive performance of Nile tilapia broodfish in commercial hatcheries. Fayoum J. Agric. Res. & Dev., 20 (2): 242-249. |
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Abou Zied, R. M. and M.M.E. Hassouna (2006). Evaluation of net enclosures systems on sex reversed Nile tilapia, Oreochromis niloticus, fry production at a commercial hatchery in Fayoum governorate. Fayoum J. Agric. Res. & Dev. 20 (1): 162-171. |
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Abou Zied, R. M. (2007). Effect of integrated duck-fish farming on growth performance and economic efficiency of Nile tilapia. Fayoum J. Agric. Res. & Dev., 21 (2): 156-164. |
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Abou Zied, R. M. and M.M.E. Hassouna (2007). Effect of meagre (Argyrosomus regius) stocking rate on Nile tilapia and grey mullet production that reared in earthen ponds under polyculture system. Annals of Agric. Sci., Moshtohor 45 (1): 121-132. |
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Abou Zied, R. M. and A.A.A. Ali (2007). Evaluation of Nile tilapia commercial hatcheries systems in Fayoum governorate. Egyptian Journal of Aquatic Biology and Fisheries. Special Issue for The International Arab African Fish Resources Conference& Exhibition. About Sustainable Use& Management of Aquatic Resources. 28-30 June 2007 Cairo International Convention Center. 11 (3): 230-238. |
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Abou Zied, R. M. (2007). Effect of stocking density and diet type on growth performance and economic efficiency of grass carp (Ctenopharyngodon idella) fry in nursing period. Egypt. J. of Appl. Sci., 22 (8 A): 18-27. |
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Abou Zied, R. M. (2010). Effect of stocking density on growth performance and feed utilization of sea bass (Dicentrarchus labrax) in cages suspended on natural pond. Fayoum j. Agric. Res. & Dev., 24 (1): 120-127. |
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Abou Zied, R. M. and M.M.E. Hassouna (2010). A system for Nile tilapia fry sex reversal based on palm pollen grains supplements. The Sixth International Conference of Sustainable Agriculture Development 27-29 December. Faculty of Agriculture, Fayoum University, 77-84. |
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Abou Zied, R. M. (2012). Effect of feeding rate, frequency as well as stocking density, on reproductive performance of Nile tilapia broodstock kept in hapas suspended in earthen pond. Egyptian J. Nutrition and Feeds. 15 (1) special issue: 367-376. |
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Abou Zied, R. M. and M.M.E. Hassouna (2012). Evaluation of farm made diets containing distillers dried grains with solubles on Nile tilapia production in commercial earthen ponds. Egyptian J. Nutrition and Feeds, 15 (2): 421-426. |
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Abou Zied, R. M. and A.A.A. Ali (2012). Effect of stocking density in intensive fish culture system on growth performance, feed utilization and economic productivity of Nile tilapia (Oreochromis niloticus L.) reared in hapas. Abbassa International Journal for Aquaculture, 5 (1): 487- 499. |
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Abou Zied, R. M. (2013). Effect of aeration systems and stocking density on growth performance, pond yield and economic impacts of Nile tilapia ((Oreochromis niloticus) reared in earthen ponds. Abbassa International Journal for Aquaculture, 6 (1): 213-228. |
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Abou Zied, R.M., M.M.E. Hassouna, R.A. Mohamed and H.H.E. Saleh (2013). Effect of replacing fish meal protein by plant protein sources, stocking density and concrete ponds area on gilthead sea bream (Sparus aurata L. ) fry production. Egyptian J. Nutrition and Feeds 16 (1): 167- 179. |
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Abou Zied, R.M., S. M. Allam and M.F.A. Sadek (2013). Effect of fish meal type and its percentage in diet on growth performance, feed utilization and body chemical composition of European eel (Anguilla anguilla). Egyptian J. Nutrition and Feeds 16 (1): 181-187. |
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Abou Zied, R.M., M.M.E. Hassouna, R.A. Mohamed and M.F.E. Abdl-Aziz, (2013). Effect of some environmental conditions and addition palm pollen grain on reproductive performance of red hybrid tilapia (Oreochromis sp.). Egyptian J. Nutrition and Feeds. 16 (2) special issue: 301-306. |
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Macfadyen, G; A.M. Nasr-Alla; D. Al-Kenawy; M. Fathi; H. Hebicha; A.M. Diab; S. M. Hussein. R. M. Abou-Zied and G. El-Naggar (2012). Value-chain analysis — An assessment methodology to estimate Egyptian aquaculture sector performance. Aquaculture 362-363 (2012) 18–27. |
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Abou Zied, R.M. (2015). Effect of diet extruded type on growth performance, feed utilization and economic efficiency of Nile tilapia in commercial farms. Egyptian J. Nutrition and Feeds), 18 (1): 143-150. |
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Abou Zied, R.M. (2015). Effect of protein level and hapa exchange times on growth performance and profitability of Nile tilapia fry during sex reversal stage in commercial hatchery, Fayoum governorate, Egypt. Egyptian J. Nutrition and Feeds 18 (2): |
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Abou Zied, R.M. (2015). Effect of stocking density and diet's type on productive performance and economic efficiency of African catfish Clarias gariepinus under semi-intensive system. Egyptian J. Anim. Prod. 52 (3):163-172. |
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Abou Zied, R.M. (2015). Effect of rest systems during spawning season on the spawning efficiency of Nile tilapia in commercial hatcheries. Egyptian J. Anim. Prod. 52(3): 173-177. |
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Abou Zied, R.M. and Ali, A.A.A. (2015). Effect of feeding rate and frequency on growth performance, sex conversion ratio and profitability of Nile tilapia (Oreochromis niloticus) fry in hapa at commercial hatcheries. Egyptian J. Nutrition and Feeds 18 (2) Special Issue: 451-459. |
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Saleh, H.H.E; S.M. Allam; R.M. Abou-Zied; R.A. Mohammed and S.S.A. Aljilany (2016). Effect of diet type and stocking density on growth performance and blood parameters of the Egyptian sole (Solea aegyptiaca Chabanaud, 1927). Abbassa Int. J. Aqua., 9 (1): 84-134. |
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Aljilany, S.S.A; R.A. Mohammed; H.H.E. Saleh; S.M. Allam and R.M. Abou-Zied (2016). Effect of stocking density, photoperiod and feeding on poultry egg on growth and development of the Egyptian sole (Solea aegyptiaca Chabanaud, 1927). larvae. Abbassa Int. J. Aqua., 9 (1): 135-170. |
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Saleh, H.H.E; R.A. Mohammed; R.M. Abou-Zied; S.M. Allam and S.S.A. Aljilany (2016). Impact of sex ratio and stocking density on the induced spawning of the Egyptian sole (Solea aegyptiaca Chabanaud, 1927). Egypt. J. Aquat. Biol. & Fish., 20 (1): 59-75. |
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Aljilany, S.S.A; R.A. Mohammed; H.H.E. Saleh; R.M. Abou-Zied and S.M. Allam (2016). Effect of some rearing systems on growth and development of the Egyptian sole (Solea aegyptiaca Chabanaud, 1927). larvae. Egypt. J. Aquat. Biol. & Fish., 20 (2): 1 – 21. |
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Abdel-Aziz, M. F. A; R.M. Abou-Zied; S. M. Allam and R. A. Mohammed (2016). Effect of stocking density and water exchange period on growth performance, feed utilization and body chemical composition on Rabbitfish Siganus rivulatus juvenile under laboratory condition Egypt. J. Aquat. Biol. & Fish., Vol. 20, No. 3: 15 – 33. . |
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Abdel-Aziz, M. F. A; R. A. Mohammed; R.M. Abou-Zied and S. M. Allam (2016). Effect of feeding frequency and feeding time on growth performance, feed utilization efficiency and body chemical composition on Rabbitfish Siganus rivulatus fry and juvenile under laboratory condition. Fish., Vol. 20, No. 3: 35 – 52. |
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Abou Zied, R.M. (2016). Effect of larval collecting system on the spawning efficiency and quality of sex reversed fry in tilapia fish hatcheries. Egyptian J. Anim. Prod. (2017) 54 (2):155-161. |
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Mohammed, R.A., M.F.A. Abdel-Aziz, R.M. Abou-Zied, S.M. Allam (2017). Effect of Feeding Rate and Diet Oil Source on Growth Performance and Feed Utilization of Rabbitfish (Siganus rivulatus) Fry. J. Fish Aqua Dev: JFAD-123/100023. |
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Sadek, M. F. A.; Shimaa S. M. Nabawi; A. A. A. Metwaly2 and R. M. Abou Zied (2020). Effect of some Protein Sources on White Shrimp Production under Lake Qarun Condition. J. of Animal and Poultry Production, Mansoura Univ., Vol 11 (5):183 – 187. |
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Sayed R.S.Z., H.H.E. Saleh, A.I. Semaida, R.M. Abou-Zied and S.M. Allam (2019).Biochemical Changes in Blood of African Catfish (Clarias Gariepinus Burchell, 1822) during Artificial Spawning Using Different Doses of Human Chorionic Gonadotropin.(HCG) Hormone.Central European Journal of Zoology, 5 (1): 46-54.
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Sayed R.S.Z., H.H.E. Saleh, A.I. Semaida, R.M. Abou-Zied and S.M. Allam (2020). Effect of different doses of human chorionic gonadotropin (HCG) hormone on stripping response and reproductive performance of the African catfish.(Clarias gariepinus)). Egyptian Journal of Aquatic Biology & Fisheries. Vol. 24 (6): 225 – 242. |
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Hamed H.E.S., A. I. Semaida, S.R.S. Zidan, R.M. Abou-Zied and
S.M. Allam (2020). Sex Hormones Changes in Blood and Their Effect on Fecundity of African Catfish.(Clarias gariepinus Burchell, 1822)after Being Injected with Different Doses of Human Chorionic Gonadotropin (HCG) Hormone. Journal of Zoological Research 2 (4): 19-30. |