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Use of 'Kluai Leb Mu Nang' banana peel as a dietary ingredient in feed for spotted scat (Scatophagus argus linnaeus, 1766)
Author(s)
Yangthong, Monsuang
Hutadilok-Towatana, Nongporn
Ruensirikul, Jirayuth
Date Issued
January 1, 2018
Type
Article
Abstract
The use of banana peel as an aquatic animal feed additive has been previously demonstrated. The peel of 'Kluai Leb Mu Nang' banana is known to be rich in useful nutrients and this study investigates its use as a dietary ingredient in the culture of spotted scat (Scatophagus argus). Five isonitrogenous and isocaloric diets supplemented with the ripe banana peel were fed to the fish twice a day for 12 weeks. Diet 1, without banana peel, served as a control diet, whereas Diets 2, 3, 4 and 5 were experimental diets containing 5, 10, 15 and 20 % banana peel respectively. The effects of the diets were measured in terms of the final body weight (FBW), weight gain (WG), specific growth rate (SGR), feed conversion ratio (FCR), protein efficiency ratio (PER), hapatosomatic index (HSI) and survival rate (SR) of the fish, as well as the influence on the fish whole-body composition (i.e. moisture, crude protein, crude lipid and ash percentages). At the end of the feeding period, the FBW, WG, SGR, FCR and PER of the fish fed diets containing 0, 5, 10 and 15 % banana peel were similar but those fed 20 % banana peel diet gained significantly less weight. Diets supplementated with banana peel had no effect on HSI, SR, body moisture or the crude protein content of the fish compared to control groups. Those fed 5 % peel diet had significantly higher ash content and the crude lipid content was significantly lower in the fish receiving the 15 % peel diet (all differences were significant at p<0.05). However, in general the levels did not deviate markedly from those obtained from the fish fed the control diet. Based on these results and the fact that the banana peel is an otherwise valueless biomass waste which is easily available, it may be of benefit as a feed additive in aquaculture.
Citation
Maejo International Journal of Science and Technology, 12(3), 221-231, 2018