Ahmed Ismail Mehrim
Professor of Fish Physiology
Advising on fish physiology, fish culture (Aquaculture), fish propagation, water pollution, and mycotoxins.
Professor of Fish Physiology
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Article published the October 4, 2018
In commercial aquaculture, the cost of feed is the main problem as it constitutes up to 60% of the total cost of production1. Hence, many researchers examined the use of substitute protein and lipid sources, especially the vegetable sources to replace fish meal and fish oil (FO) that are the cheaper, leading to reduce the feed cost2,3. Lipid is considered one of the most important compon ...
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Article published the March 19, 2015
INTRODUCTION Herbal medicinal products are widely used around the world (Jordan et al., 2010). A growing interest has emerged in using herbs in animal feeds by both researchers and feed companies (Logambal and Michael, 2000). Since ancient times, garlic (Allium sativum)has been used worldwide as a seasoning, spices, and herbal remedies or folk medicine (Rivlin, 2001).Garlic has been used in ancie ...
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Article published the December 4, 2014
INTRODUCTION Most of the Egyptian wild (marine, brackish, and fresh) water bodies is contaminated with agricultural, industrial, and urban drainage, which is responsible for their water and fish pollution with different heavy metals (Abdelhamid et al., 2006a and 2013 a&b) at levels exceeding the Egyptians’ tolerance limits (ES, 1993 and Abdelhakeem et al., 2002). Heavy metals pollu ...
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Article published the June 20, 2014
INTRODUCTION Culture of African catfish, Clarias gariepinus has received considerable attention since the early 1970s and 1980s (Clay, 1981). African catfish is a suitable alternative to tilapia in subsistence fish farming in Africa and using low grade feed composed of  some local agricultural by-products, the yields of catfish from ponds could be as much as 2.5 times higher than those of ti ...
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Article published the April 4, 2014
INTRODUCTION Tilapia species constitute a major and important item in the Egyptian fish farming. It displays many favourable attributes as culture species, on the basis of its general hardness, resistance to diseases, high yield potential and ability to grow on a wide range of natural and cheap artificial foods. Additionally, it also can withstand low oxygen concentrations, overcrowding, tolerate ...
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Article published the March 17, 2014
INTRODUCTION Tilapia species constitute a major and important item in the Egyptian fish farming. It displays many favourable attributes as culture species, on the basis of its general hardness, resistance to diseases, high yield potential and ability to grow on a wide range of natural and cheap artificial foods. Additionally, it also can withstand low oxygen concentrations, overcrowding, tolerate ...
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Article published the December 11, 2013
INTRODUCTION Nile tilapia (Oreochromis niloticus) are considered as the most common and popular fish in Egypt.  Egypt is a country where, arguably, the farming of tilapia has its roots (Stickney, 2006). Latest fish production statistics in Egypt revealed that tilapia constitutes 52.86% of the total fish production in 2010 (GAFRD, 2010) and occupy the 10th order concerning the world producti ...
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Article published the June 25, 2013
Introduction Many feed ingredients used in aquaculture have been found to be frequently contaminated (Cagauan et al., 2004). At the present time, increased use of ingredients of plant origin in aquafeed formulations for fish culture has intensified the potential onset for aflatoxicosis in farming systems due to the carryover of high loads of aflatoxin contamination by vegetable sources (Murjani, ...
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Article published the April 16, 2013
INTRODUCTION Hormones, antibiotics, ionophers and some salts compounds have been used as growth promoters and to some extent to prevent diseases. However, their inadequate applications show a negative effect on aquaculture production and environment (Góngora, 1998). Functional additive, like probiotics, is a new concept on aquaculture (Li and Gatlin III, 2004) where the additions of microo ...
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Article published the July 12, 2011
Abstract: The present study was carried out to evaluate the effects of dietary supplementation of a commercial probiotic "Biogen®" on growth performance, carcass composition, blood hematological and biochemical parameters, histometric examination of fish dorsal muscles and economic efficiency of mono-sex Nile tilapia Oreochromis niloticus under different stocking densities. Therefore, fish wit ...
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Information
Location:Mansoura, Ad Daqahliyah, Egypt
Profile: Academic / scientific
Professional Title: Professor of Fish Physiology