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Comparison of Diets for Mass-Rearing Acheta domesticus (Orthoptera: Gryllidae) as a Novelty Food, and Comparison of Food Conversion Efficiency with Values Reported for Livestock

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Abstract:

As part of research on mass-rearing the cricket Acheta domesticU$ (L.) as a novelty (innovative) food, four cricket diets, two prepared in the laboratory and two commercial, were compared on the basis of cost per kilogram (wet weight) of eighth instars produced. Costs were influenced by dietary ingredients, mean cricket wet weight at time of harvest, and feed/gain ratios. For the laboratory-prepared diets, crickets grown on Patton's diet no. 16 or on NRC reference chick diet averaged 0.443 and 0.418 g at time of harvest, with feed/gain ratios of 0.923 and 0.949, respectively. Because of the cost of ingredients, however, the cost per kilogram of live crickets produced was only $0.21 for the NRC chick diet compared with $2.55 for Patton's no. 16; these costs exclude the cost of labor for mixing the diets. Performance of crickets on the laboratory-prepared diets was somewhat better than performance on the commercial diets. The food conversion efficiency of crickets at 30"C or higher was found to be higher than reported for broiler chicks and pigs and much higher than those reported for sheep and cattle.

Document Type: Research Article

Publication date: June 1, 1991

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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