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Total Replacement of Fish Meal With processed Poultry Offal Meal (P-POM) Enhances the Growth Performance and Feed Utilization in Snakehead, Channa Striata (Bloch, 1793) Juveniles

Journal: International Journal of Oceanography & Aquaculture (Vol.2, No. 3)

Publication Date:

Authors : ; ;

Page : 1-12

Keywords : Fish Meal; Lab Processed Poultry Offal Meal; Snakehead; Growth;

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Abstract

This study was conducted to evaluate the replacement of fishmeal (FM) with processed poultry offal meal (P-POM) on growth performance and diet digestibility in snakehead, Channa striata juveniles. Fish (mean initial weight (13.23±0.06) were reared in 15 black 500l-fiberglass tanks and fed with five isonitrogenous (40% crude protein) and isocaloric (18.90kJ/g gross energy) diets, respectively, in triplicates. The control diet (D1) was formulated to contain 40% FM protein and the remaining diets replaced FM protein with P-POM in increasing order, 25% (D2), 50% (D3), 75% (D4) and 100% (D5). Fish were fed the assigned diet twice daily until apparent satiation for 12 weeks. Fish fed D4 (75% replacement) resulted in significantly higher growth performance and feed utilization. The HSI values increased significantly from 50% to 100% replacement levels while VSI value was significantly highest at 75% replacement level. Lipase activities were significantly highest for the 25% up to 75% replacement levels but only 75% replacement level resulted in significantly highest protease activity. The apparent dry matter digestibility increased significantly with increasing levels of P-POM up to 75% replacement levels while no significant differences was observed in the apparent protein digestibility between treatments accept the fish fed 100% replacement level. Both apparent dry matter and protein digestibilities were significantly lower at 100% replacement levels. The results from this feeding trial indicate that the P-POM protein can replace up to 75% FM protein diets for snakehead fingerlings without affecting the survival, growth performance and feed utilization.

Last modified: 2018-05-26 15:10:02