Soybean meal and wheat flour, proper dietary protein sources for optimal growth of snail (Semisulcospira coreana)

Abstract

A 10-week feeding experiment was conducted to determine the proper dietary protein source for optimal growth performance of juvenile snails, Semisulcospira coreana. Sixteen isonitrogenous (31% crude protein) and isocaloric (4.2 kcal/g DM) experimental diets (designated as FM, and F-MIX) were formulated to contain 41% fish meal, 42% fermented fish meal, 59% soybean meal, 55% fermented soybean meal, 55% wheat flour with 26% fish meal, 55% fermented wheat flour with 29% fish meal, 50% sesame seed meal with 10% fish meal, 50% fermented sesame seed meal with 11% fish meal, 55% soya-curd residue or fermented soya curd residue with 25% fish meal, 50% Undaria powder or fermented Undaria powder with 24% fish meal, 50% freshwater plant with 29% fish meal, 50% fermented freshwater plant with 28% fish meal, a mixture of 8% soybean meal, 10% wheat flour, 8% sesame seed meal, 8% soya-curd residue, 8% Undaria powder and 8% freshwater plant with 17% fish meal, and 50% the fermented mixture with 16% fish meal, respectively, as dietary protein sources. Juvenile snails (average weight, 32 ± 0.7 mg) were randomly distributed in forty-eight 25-L aquaria (16 L water each) in a flow-through system at a density of 130 snails per aquarium. Three replicate groups of snails were fed one of the experimental diets ad libitum once per day for 10 weeks. At the end of the feeding experiment, survival of snails was above 98% and not significantly different among the dietary treatments. The best final body weight was observed in snails fed the SBM and WF diets.

A Comparison between Chicken Viscera and Housefly Maggot Cultured from this By-products for Nile Tilapia Diets: Growth Performance, Feed Utilization and Whole Body Composition

“…Results obtained from the present study clearly indicated that monosex male Nile tilapia O. niloticus fed Maggot meal diet performed better than those fed chicken viscera meal in terms of growth performances. Fish meal is known as the best protein source in aquafeeds and diets containing fish meal generally produce better growth performance in comparison with other protein sources, including animal and plant meals [38]. However, group fed HMM diet performed equally than those fed control diets.…”

Proximate composition, amino acid and fatty acid profiles of marine snail Rapana venosa meat, visceral mass and operculum

“…The fat content of Rv meat was lower than that of other reported marine snails, freshwater snail (Semisulcospira gottschei 34 ), and land snails (L. aurora, 27 Helix nemoralis, 29 A. fulica, 31 Achatina achatina 33 and Limicolaria spp. 33 ), and within the range of freshwater snail (Semisulcospira coreana 18 ) and land snail (H. a. maxima 30 ). These results indicated that Rv meat was low in fat and rich in protein, and are in good agreement with those reported in marine snails (S. gracilior 25 , H. ternatanus 26 and Cookia sulcata 35 ) and land snail (H. pomatia 28 ).…”

Production of total polyphenol from fermented soybean curd residue by Lentinus edodes

“…In Japan, most SCR is incinerated or landfilled directly, and the disposal cost of SCR is 10 000-20 000 yen per ton. Although there were some reports about making SCR into the health food and feed, processing techniques were too complex and cost was too high to use widely (O'Toole, 1999;Pham et al, 2010). The production of ecologic feed by an edible mushroom is a new, simple and economic method to reuse SCR raw materials in SSC.…”