A.M. Abdelhamid

IntroductionHematological parameters of fish blood are useful tools that aid in the study immuno-potentiators. Such tests are general but not conclusive and must be correlated with biochemical tests of the subject. The classification of leucocytes as in the vertebrates has been done following morphological criteria where by various groups can be distinguished such as lymphocytes, granulocytes and ...

Introduction Penzlin (1977) cited that blood constituents of fish are variable than those of the terrestrial animals. Abdelhamid (1991) argumenta for the variation between fish and terrestrial animals to the huge number of fish species (ca. 25.000) and strains (40.000) in comparison with the mammalian species (ca. 4.500). Additionally, Abdelhamid (2009) cited that fish are variable in their m ...

IntroductionFish are the most feed converser than all terrestrial animals' species. So, the world population consumes 17% of their food protein from fish. Nowadays, aquaculture production in Egypt reached to 80% of the total local fish production (GAFRD, 2016 and Abdelhamid, 2019b). Milstein and Svirsky (1996) reported that an appropriate-adequate fish density will utilize the available resources ...

IntroductionPress and Evensen (1999) mentioned that species variation in the morphology of the immune system is to be expected, given the large number and diversity of species within the teleost fishes. Several external and internal factors can influence the activity of innate immune parameters. Temperature changes, handling and crowding stress can have suppressive effects on innate parameters, wh ...

INTRODUCTIONAquaculture is the fastest growing sector of food animal production in the world and supplies an increasing percentage of the total production of fish for human consumption (FAO, 2012). Nowadays, Egyptian fish production from aquaculture contributed by 80% of total fish production which amounted 1.8 million metric tons (Abdelhamid, 2019a). Tilapia in different countries is farmed with ...

IntroductionSearching for novel economic animal food sources to overcome the Egyptian gap in animal nutrition, many attempts were carried out to evaluate new agro-industrial by-products (Abdelhamid, 1988) such as rice straw and maize stover (El-Shinnawy et al., 1986 and Abdelhamid et al., 1989a, b, 1991 &1994), poor quality barley straw (Gabr et al., 1989), pea by-products (Abdelhamid and El-A ...

IntroductionNowadays aquaculture in Egypt supplies ca. 80% of human fish consumption. Egypt occupies the tenth rank all over the world concerning aquaculture production (FAO, 2016). But the Aqua-feeds are shorter than the demands, besides their expensive costs; therefore there is a need to recycle and reuse all possible and available field and industrial by-products that have a nutritional importa ...

IntroductionMuch information is given (Willem Van Cotthem, 2012) about Opuntia ficus-indicaasan aloes. Therefore, the aim of the present study was evaluating the possibility of using powders of either fruits' skins or leaves of the Egyptian Teen Shoky as replacers for dietary corn in all-males mono-sex Nile tilapia, Oreochromis niloticus diets and their effects on fish performance for 75 days. Thi ...

IntroductionNowadays aquaculture in Egypt supplies ca. 80% of human fish consumption. Egypt occupies the tenth rank all over the world concerning aquaculture production (FAO, 2016). But the Aqua-feeds are shorter than the demands, besides their expensive costs; therefore there is a need to recycle and reuse all possible and available field and industrial by-products that have a nutritional importa ...

IntroductionMuch information is given (Willem Van Cotthem, 2012) on Opuntia ficus-indicaasan aloes. In Arabic is called Sabr, Teen Shoky, Teen Barbary, Hendy, Hendia, or Barshomy. It could be used commercially and industrially in treatment of some diseases (eyes, face, bone, prostate, colon, stomach, and intestine) and in cosmetic manufactures. It is a permanent plant grows in arid zones and toler ...