Microbe-Fermented Cassava Tuber Waste-Based Diets: Effects on Performance and Serum Biochemistry of Cockerel Finishers.
Journal Title: Advance Research Journal of Multidisciplinary Discoveries - Year 2018, Vol 29, Issue 29
Abstract
The effects of dietary inclusion of microbe-fermented cassava tuber wastes on growth performance and serum biochemistry of cockerel finishers were evaluated in a 16-week experiment. The birds were randomly assigned to seven dietary treatments comprising thirty birds per treatment. Each treatment was replicated thrice with 10 birds per replicate. The cassava tuber wastes (cassava peels and cassava starch residues) were enriched through microbial fermentation using two different strains of lactic acid bacteria (Lactobacillus delbrueckii and Lactobacillus coryneformis) and a fungus (Aspergillus fumigatus). Seven experimental diets were formulated to contain graded levels of the microbe-fermented cassava peel and cassava starch residue at 0%, 20%, 40% and 60%. Grade 1 (G1), the control treatment, contained 0% microbe-fermented cassava tuber wastes (CTWs), Grades 2 (G2), 3 (G3) and 4 (G4) contained 20%, 40% and 60% microbe-fermented cassava peel (MFCP) while Grades 5 (G5), 6 (G6) and 7 (G7) contained 20%, 40% and 60% of microbe-fermented cassava starch residues (MFCSR) respectively. Results showed that G4 had the lowest final body weight (1002.82±64.56g) while G1 had the highest (1635.19±32.45g). The poorest feed conversion ratio (FCR) of 8.77±0.62 was observed in G4 while the best (4.42±0.17) was recorded in G1. Serum total protein was highest in G6 (40.73±7.86g/l) and lowest in G1 (25.16±7.37g/l). Total protein (TP) in all the treatments with CTWs were higher than that of the control diet. Serum globulin was highest in G2 (28.28±5.14g/l) and lowest in G1 (14.96±7.31g/l). Serum alkaline phosphatase (ALP) in the CTW diets compared well with the control diet (487.60±12.17g/l) with the exception of G7 (243.80±59.80g/l). Alanine aminotransferase (ALT) was highest in G4 (23.67±14.52µ/l) but lowest in G2 (5.00±0.58µ/l). Conclusively, cockerels can be raised and finished on diets containing 20% inclusion of microbe-fermented cassava peels (MFCP) and 40% microbe-fermented cassava starch residue (MFCSR) without any adverse effects on performance and biochemical profile of the birds. At 60% level of both MFCP and MFCSR, poor performance and negative biochemical manifestations which may compromise normal physiological responses in cockerels could be observed.
Authors and Affiliations
Oniyelu, A. B, Aro, S. O
Keywords
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