GROWTH AND PHYSIOLOGICAL, HISTOLOGICAL AND ECONOMICAL RESPONSES OF NILE TILAPIA, Oreochromis niloticus FRY TO DIFFERENT DIETARY LEVELS OF FABA BEAN MIDDLINGS | ||
| Journal of Animal and Poultry Production | ||
| Article 14, Volume 29, Issue 6, June 2004, Pages 3175-3196 PDF (3.4 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jappmu.2004.239272 | ||
| Authors | ||
| Shymaa M. M. Shalaby,1; A. y. EI-Dakar2; Asmaa Abd Elmonern3; Olfat W. Sadrak1 | ||
| 1National Institute of Oceanography and Fisheries, Alexandria, Egypt. | ||
| 2Animal Production Department, Faculty of Agriculture, Alexandria University, EI-Shatby Alex, Egypt. | ||
| 3Fish Resources and Aquaculture Department, Faculty of Environmental Agricultural Sciences, Suez Canal University, EI·Arish, Egypt | ||
| Abstract | ||
| Five isonitrogenous (30% protein) diets containing 0, 10, 20, 30 and 40% of faba bean middling (FBM) instead of soybean meal were investigated for 98 days. Ten glass aquaria (70-L capacity), were used to stock 10 fish I aquarium of Nile tilapia fry initially average weight of 0.37 glfish. Fish fed (he diet containing 10% FBM grew faster than those fed other diets. However, the diets had FBM levels of 20, 30 and 40 % gave similar body weight, gain and specific growth rate being relatively lower value than the control diet. No significant differences (P>0.05) were observed in protein efficiency ratio and protein productive value, body contents of protein, ether extract, ash, and plasma glucose and total lipids. However, fish fed diets containing FBM levels gave lower concentration of aspartate aminolransferase and alanine aminotransferase than fish fed the control diet. The level of 10% FBM provided healthy fish with normal liver structure and optimum gonadal development. However, liver and gonads structure of fish fed more than 10% FBM resulted in hepatic celts destruction. sperm resorption in males, and oocyte atresia in females. The 10% level of FBM was the best economical inclusion level based on incidence cost and profit index | ||
| Keywords | ||
| Nile tilapia; Faba bean middlings; Unconventional feedstuff; Growth; Feed utilization; Physiology; Histology. and Economy | ||
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