Effect of Phytase-Supplemented Diets on Growth Indices, Nutrient Digestibility and Utilisation, Carcass Composition, and Sustainability of African Catfish (Clarias gariepinus)
Elaigwu, A., Auta, J., Onimisi, H. (2024). Effect of Phytase-Supplemented Diets on Growth Indices, Nutrient Digestibility and Utilisation, Carcass Composition, and Sustainability of African Catfish (Clarias gariepinus). EKB Journal Management System, 5(1), 111-121. doi: 10.21608/asfr.2024.312521.1066
Audu Michael Elaigwu; Jehu Auta; H.U. Onimisi. "Effect of Phytase-Supplemented Diets on Growth Indices, Nutrient Digestibility and Utilisation, Carcass Composition, and Sustainability of African Catfish (Clarias gariepinus)". EKB Journal Management System, 5, 1, 2024, 111-121. doi: 10.21608/asfr.2024.312521.1066
Elaigwu, A., Auta, J., Onimisi, H. (2024). 'Effect of Phytase-Supplemented Diets on Growth Indices, Nutrient Digestibility and Utilisation, Carcass Composition, and Sustainability of African Catfish (Clarias gariepinus)', EKB Journal Management System, 5(1), pp. 111-121. doi: 10.21608/asfr.2024.312521.1066
Elaigwu, A., Auta, J., Onimisi, H. Effect of Phytase-Supplemented Diets on Growth Indices, Nutrient Digestibility and Utilisation, Carcass Composition, and Sustainability of African Catfish (Clarias gariepinus). EKB Journal Management System, 2024; 5(1): 111-121. doi: 10.21608/asfr.2024.312521.1066

Effect of Phytase-Supplemented Diets on Growth Indices, Nutrient Digestibility and Utilisation, Carcass Composition, and Sustainability of African Catfish (Clarias gariepinus)

Aquatic Science and Fish Resources (ASFR)
Volume 5, Issue 1, 2024, Page 111-121  XML PDF (1.15 MB)
Document Type: Original Article
DOI: 10.21608/asfr.2024.312521.1066
View on SCiNiTO View on SCiNiTO
Authors
Audu Michael Elaigwu email 1; Jehu Auta2; H.U. Onimisi3
1Department of Fisheries and Aquaculture, Federal University Dutsin-Ma, Dutsin-Ma, Nigeria
2Department of Biology, Ahmadu Bello University, Zaria, Nigeria.
3National Agricultural Extension and Research Liaison Services Ahmadu Bello University, Zaria, Nigeria
Abstract
Plant protein ingredients are utilized for fish feed, but they contain phytate. The thermostable phytase-added diet will have no cost for preservation. Therefore, it will be deployed to resolve the problems of the phytate. This study aimed to assess the effect of phytase additives on growth indices, digestibility and utilization, carcass composition, and sustainability of African Catfish fed a combination of diets. Five diets were formulated Phytase (Ronozyme hiphos GT) (500; 1000, 1500, 2000, 2500) FYT.kg-1 diet and a control 0 FYT.kg-1 diet. Comprise of 18 tanks (200 liters each), stocked with 20 fish of mean weight 20.98 ± 0.01 g, and fish were manually fed thrice for 84 days. Fish showed a significant (p < 0.05) inclusion level-base improvement of mean final weight from 81.60 ± 1.49 g in 0 FYT.kg-1 to 113.19 ± 3.18 g in 2000 FYT.kg-1, and feed conversion ratio from (2.11 ± 0.06 to 1.56 ± 0.06), protein digestibility from (93.43 ± 0.03 to 98.19 ± 0.03) %, and carcass crude protein from (36.11 ± 0.11 to 44.03 ± 0.06) % in 0 FYT.kg-1 and 2000 FYT.kg-1 respectively. Intestine villi height improved from (405.49 ± 0.49 to 611.03 ± 0.98) µm in (0 to 2000) FYT.kg-1. The net profit increased from (954.18 ± 53.64 to 1995.42 ± 114.48) in (0 to 2000) FYT.kg-1. The 2000 FYT.kg-1 inclusion level reflected the best growth, digestibility, carcass composition, and sustainability in African catfish, while the optimal inclusion level was 800 FYT.kg-1 diet.
Keywords
Phytate; Thermostable-phytase; Cost-effective; growth
Statistics
Article View: 137
PDF Download: 84