Abdelhamid Eid

IntroductionIn Egypt, shrimp culture has fluctuated progress. Although shrimp culture is profitable, but shrimp disease is still one of the major problems.  Shrimp’s origin is from the eastern Pacific waters. In practice of shrimp culture, shrimp farmers often use their habit and experience, including the harvest time (Nour et al., 2004).Litopenaeus vannamei is the most important penaei ...

INTRODUCTIONThe increasing global population and the limiting global capture fisheries undeniably increase the demand of aquaculture. On the other hand, those will also bring about limitation to aquaculture expansion in particular of land and water utilization. Therefore, productivity enhancement in term of total production per input used becomes one of the major priority in the development of aqu ...

IntroductionDietary protein is the most expensive ingredient in fish feed which is required to sustain normal growth of aquatic animals. Feed accounts for 40-60% of the production costs in aquaculture, with protein sources accounting for a significant proportion of this cost (Fotedar, 2004).The use of rich protein diets above optimum levels, increases operating costs required to raise fish. Optimu ...

IntroductionThe omnivorous Nile tilapia (Oreochromis niloticus) is an important commercially farmed species worldwide due to characteristics such as strong disease resistance, fast growth and the ability to accept lower cost diets with terrestrial-based ingredients (Ng and Romano, 2013).Fish production costs are increasing while fish price in the market is relatively stable (Tacon and  Metian ...

AbstractAn experiment was conducted to evaluate the effect of two different commercial feed additives on growth performance of monosex Nile tilapia fingerlings. Seven treatments were applied, three levels of Biogen® (0.1, 0.2 and 0.3%) and Pronifer® (0.1, 0.2 and 0.3%) in addition to control. The tested diets were applied in 21 fiberglass tanks each was stocked randomly with 20 monosex Nil ...

SUMMARY The protein requirements of fingerlings grey mullet, Mugil cephalus with an initial body weight of 5.5 g on the average, were studied by using four diets containing 32, 36, 40 and 44% crude protein, and fed for 90 days. The best growth performance was obtained with 36% crude protein and carbohydrate 35%, followed by the diets containing 40, 44 and 32% crude protein respectively. Protein e ...

ABSTRACT     The present study was carried out in a 24 earthen pond system (one feddan each, three replicates for each treatment) to investigate the effect of feed, feed plus fertilization (organic± inorganic fertilizer), improved (fertilized with organic± inorganic± supplementary feeding with rice bran) and poor nutrient inputs (fertilized with poultry manure, ...

  Abstract This research was conducted to study the effect of lipid levels on growth performance of fingerlings Sea bass. Sea bass (Dicentrarchus labrax) fingerlings with an average body weight 1.2±.0.2g were fed one of four compound diets containing 50% crude protein with different level of lipids, ranging from 10 to 16 g/100 g. The highest weight gain, specific growth rate, ...