Pre-soaking of the feed pellets: a trick for successful feed utilization in juvenile green turtles (Chelonia mydas Linnaeus, 1758)

Journal of Animal Physiology and Animal Nutrition
H KanghaeK Kittiwattanawong

Abstract

Pre-soaking of the feed pellets in water can improve feed utilization in juvenile green turtles (Chelonia mydas Linnaeus, 1758), but the pre-soaking has not previously been optimized. This study aimed to optimize the water amount used for pre-soaking the pellets. The experiments followed a completely randomized design with three replications of each dietary treatment group. Initially 10-day-old green turtles (20-22 g body weight) were treated in an indoor aquaculture system for 3 months. The dietary treatment pellets were pre-soaked with 0.3, 0.5 or 0.7 (v/w) relative amounts of water that are here termed soaking ratios. At the end of experiment, there were no significant differences in survival (96% on average) and growth (average body weight 75.34 g and specific growth rate 2%/day, on average) of turtles in three dietary treatments (p > 0.05). Feed utilization was the best in turtles fed with 0.7 pre-soaked ratio, as indicated by significant reductions (p < 0.05) in the feeding rate (7.44% body weight/day) and the feed conversion ratio (1.12 g feed/g gain). Digestion was also improved by the induction of faecal digestive enzymes as well as the faecal thermal properties. The rapid growth did not negatively affect the general h...Continue Reading

References

Jan 10, 2002·Journal of Agricultural and Food Chemistry·Jinsong Bao, Harold Corke
Jan 29, 2008·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Nico Varo, Juan A Amat
Feb 28, 2008·Journal of Thoracic Oncology : Official Publication of the International Association for the Study of Lung Cancer·Regina M Vidaver, Beth S Schachter
Mar 1, 2006·Fish Physiology and Biochemistry·K Rungruangsak-TorrissenR Waagbø
Aug 21, 2013·Annual Review of Marine Science·John P Crimaldi, Richard K Zimmer

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Citations

Aug 18, 2016·Zoo Biology·Hirun KanghaeKongkiat Kittiwattanawong
Oct 28, 2019·Animals : an Open Access Journal From MDPI·Suthep JualaongHirun Kanghae
Jan 30, 2020·Animals : an Open Access Journal From MDPI·Suthep JualaongHirun Kanghae
May 1, 2021·Animals : an Open Access Journal From MDPI·Suthep JualaongPiyanan Sotong

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