Substitution of the fish meal by the earthworm and maggot meal in the feed of Nile tilapia Oreochromis niloticus reared in freshwater

Abstract

The present experiment was conducted to evaluate the efficacy of dietary protein from maggot meal and earthworm meal to replace fish meal protein in Oreochromis niloticus juvenile feed. The fish used for this experiment come from the experience of the larval phase during which fish were fed with the formulated diets [fish diet (FD), maggot diet (MD) and earthworm diet (ED)] content 40% crude protein and the commercial diet (CD) content 34.5% crude protein. At the end of this larval phase, the average weights were 0.75 ± 1.93, 0.71 ± 3.55, 0.55 ± 2.52 and 0.62 ± 2.52 g for FD, MD, ED and CD respectively. These different weights constitute the initials weights for this experience. In this experimental, the formulated diets (FD, MD and ED) content 30% crude protein and 29.5% crude protein for CD. Fish were fed four times daily to triplicate groups at 10.7% body weight for consecutive 90 days. After these days, fish fed with FD gave significantly higher average daily gain (ADG, 0.3 ± 0.03 g.day -1 ) than MD (0.22 ± 0.18 g.day -1 ). Fish fed with ED had the lowest ADG (0.14 ± 0.12 g.day -1 ). The specific growth rate (SGR) were higher in fish group fed with FD, MD and CD and shows no significant difference (p > 0.05) compared to ED. Feed conversion ratio (FCR), protein efficiency ratio (PER) and survival rate (SR) show no significant difference (p > 0.05) in all the test. The production cost of 1 kg of fish (PC) and the carcass chemicals composition were evaluated. In conclusion, these results of this study indicate the possibility of completely using maggot meal as a source protein in the diet of O. niloticus juvenile to increase the growth of fish and reduce the cost of 1 kg of fish produced.

Replacement of dietary fish meal with Clostridium autoethanogenum meal on growth performance, intestinal amino acids transporters, protein metabolism and hepatic lipid metabolism of juvenile turbot (Scophthalmus maximus L.)

“…Combined with the rising price of fish meal and limited fishery resources, it is necessary to search for alternative protein sources applied in aquafeeds ( Natale et al, 2013 ). Recently, the research on alternative protein sources mainly focused on vegetable protein and their fermentation treatment ( Dossou et al, 2018 ; Ismail et al, 2020 ; Iqbal et al, 2021 ; Rahimnejad et al, 2021 ) as well as animal protein ( Moutinho et al, 2017 ; Medard et al, 2018 ; Sabbagh et al, 2019 ; Tazikeh et al, 2020 ) for their lower price. However, the defects of poor palatability, low digestibility and imbalanced amino acids profile limit their further application in aquafeeds.…”

Culture and production of Lucilia sericata Meigen (1826) larvae for rearing stinging catfish Heteropneustes fossilis (Bloch, 1794) using poultry waste

“…The fly (L. sericata) maggot was considered one of the important animal that can be grown in the chicken manure medium (Ali Khan et al, 2012;Hwangbo et al, 2009). Studies have shown that maggot meal may be a very effective replacement for fish meal, which serves as an excellent source of protein for making fish feed for commercial or small-scale aquaculture (Jahan et al, 2020;Medard et al, 2018;Djissou et al, 2016;Aniebo et al, 2009). Different animal and fish species were used in experiments to determine the impact of using maggot meal instead of other types of protein (Xu et al, 2022;Khan et al, 2016;Makinde and John, 2015;Aniebo et al, 2009).…”

High Dietary Histamine Induces Digestive Tract Oxidative Damage in Juvenile Striped Catfish (Pangasianodon hypophthalmus)

“…It is well known that reducing farming costs is one of the main strategies to improve farming economic efficiency [ 4 ]. In modern aquaculture, feed costs usually account for more than 50% of total costs, since fish meal is increasingly expensive [ 5 , 6 , 7 ]. Currently, fish meal remains an integral part of commercial feed for striped catfish, remaining at 20–60% [ 8 ].…”