ASSESSMENT OF COTTON-SEED (Gossypium species) MEAL AS INGREDIENT IN THE DIET OF Clarias gariepinus FINGERLINGS
ASSESSMENT OF COTTON-SEED (Gossypium species) MEAL AS INGREDIENT IN THE DIET OF Clarias gariepinus FINGERLINGS
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Date
2011-05
Authors
ASHIRU, AMINU
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Abstract
The effect of feeding graded levels of cotton Gossypium Spp. seed meal as an
inclusion in the diet of Clarias gariepinus juveniles for growth performance and
feed utilization was analysed in comparison with the conventional commercial
fish feed. Six experimental rations formulated were cotton-seed Gossypium Spp.
meal replaced fish meal at graded levels of 20%, 30%, 50%, and 100% and
were fed to Clarias gariepinus juveniles for 56 days, the experiment was
conducted in six outdoor concrete tanks in the Department of Biological
Sciences Garden, Ahmadu Bello University, Zaria, Nigeria. Data for each
parameter were subjected to Analysis of variance (ANOVA) and the means for
various experimental diets were compared for significant differences at 0.05%
level of inclusion. The results showed that fish fed with D1 which has 20% gave
the best Body Weight Gain (81.28g), Specific Growth Rate (2.23), Feed
Conversion Ratio (2.04), Protein Efficiency Ratio (2.21), Net Protein Utilization
(35.14) and Condition Factor (1.49), while diet D2 gave the least Weight Gain
(49.67g), Specific Growth Rate (1.58), Feed Conversion Ratio (3.64), Protein
Efficient Ratio (1.24), Net Protein Utilization (20.27) and Condition factor
(0.79).The levels of Anti-nutritional Factors are negligible. The results were
significantly different (p<0.05) for both growth and feed utilization parameters.
Carcass crude protein was also significantly higher p<0.05 in fish fed D1 (20%)
with (60.63%) and therefore, cotton-seed meal can be used as a replacement for
fish meal at 20% level of inclusion. The results established significant reduction
in production cost while optimal production is achieved.
Description
A THESIS SUBMITTED TO THE SCHOOL OF POSTGRADUATE
STUDIES, AHMADU BELLO UNIVERSITY ZARIA IN PARTIAL
FULFILLMENT FOR THE AWARD OF THE DEGREE OF MASTER
OF SCIENCE IN (BIOLOGY EDUCATION).
DEPARTMENT OF BIOLOGICAL SCIENCES,
FACULTY OF SCIENCE,
AHMADU BELLO UNIVERSITY,
ZARIA-NIGERIA
May, 2011.
Keywords
ASSESSMENT, COTTON-SEED (Gossypium species), MEAL, INGREDIENT, DIET, Clarias gariepinus FINGERLINGS