Ducks are considered the second common strains of poultry in the world. In Egypt, more attention is focused lately on increasing meat production, particularly ducks which are considered the easiest domestic poultry (El-Soukkary, et al., 2005). Sudanese breed is considered a local breed and more favorable to the Egyptian consumer and more heat tolerant as compared to Muscovy duck (foreign ... Read more

Abstract: The present study was carried out on 82 samples of claries gariepinus, 72 Mature female and 10 immature females. About 6 fishes of mature female catfish nearly 600- 700 gm in weight and 40-45 cm in length were collected monthly throughout the year from the Nile River, crossing Sohag city in Egypt, during the year 2011-2012 to elucidate the ... Read more

special histology is the study of the histological structure of organs of different systems of the body Histology is also used in understanding the pathogenesis and DIAGNOSIS of various diseases. Diseased tissue samples, or biopsies, from the affected organs are usually processed, STAINED and observed under the microscope. Histology involves the use of both LIGHT MICROSCOPY and ELECTRON MICROSCOPY, depending ... Read more

Demonstrate knowledge of the structural and functional characteristics that define a tissue. • Demonstrate knowledge of the mechanisms of cell differentiation, aggregation, intercellular recognition and communication that lead to the formation of tissues. • Demonstrate knowledge of mechanisms by which cells adapt to changes in their environment. • Demonstrate knowledge of the nomenclature of these adaptations that will be widely ... Read more