INCORPORATION OF LUPIN SEED MEAL AS PLANT PROTEIN SOURCE IN GIL THEAD SEA BREAM (Sparus aurata) DIETS.

Document Type : Original Article

Author

National Institute of Oceanography and Fisheries, Shakshouk Aquatic Research Station at EI Fayoum, Egypt.

Abstract

The extruded lupin seed meal (Lup < /em>inus a/bus) was used as alternative
protein source to partially replace fish meal in feeding of Sp < /em>arus aurata. Four
experimental diets were formulated to contain 40.68% ±0.12 CP. Diet 1, without lupin
seed meal and considered to be the control, where L 10, L20 and L30, lupin seed meal
was incorporated at 10,20 and 30%, respectively. Sixty fingerlings of Sparus aurata
with an initial body we~ht of S.45±O.05g were distributed at random in twelve fiber
glass tanks (each of1 m ). The fish were fed 3% of their total body weight and the diets
were offered at two times/day. Growth performance of fish showed a significance
differences (P<0.05) between treatments. The highest performance was recorded with
the fish fed 20% lupin seed meal (L20), followed with lesser extant by the control and
L 10 diets, respectively. However, the least performance was recorded with 30%
incorporation level of lupin seed meal (L30). The carcass composition of fish were not
affected by the incorporation level of lupin. The digestibility coefficients of the
experimental diets showed a good utilization for protein in all tested diets. However,
the carbohydrate digestibility coefficients recorded inferior results. On the other hand,
the blood characteristics of fish (Hematocrite, Hemoglobin and plasma protein
content) not differently by lupin seed level in the diets. The results of the present trial
concluded that, the lupin seed meal can be utilized at level of 20% in feeding of
Sparus aurata, without adversely effects on growth performance, digestibility
coefficient and blood characteristics.

Keywords

Journal of Animal and Poultry Production
Volume 30, Issue 11
November 2005
Pages 6553-6564

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