The field cricket, , is a sustainable and nutritious food resource that has the potential to mitigate global malnutrition. Feeds provided to this cricket can influence its growth parameters, nutritional content, and the cost of raising it for food. The current study aimed to evaluate the effects of feeds formulated from weeds, agro-byproducts, and chicken feed (control) on the growth parameters and nutritional content of . The formulated feeds included CFB (25.0% protein), CFC (24.5% protein), CFD (24.0% protein), CFE (23.5% protein), CFF (22.5% protein), CFG (21.5% protein), CFH (20.0% protein), CFI (14.5% protein), and CFJ (13.5% protein), and chicken feed (CFA) (28% protein) was used as the control. The formulation of the feeds was based on the acceptability and protein content of the 12 selected weeds and agro-byproducts. Proximate, mineral, and fatty acid analyses were conducted to determine the nutrient content of each feed, as well as the crickets raised on these feeds. The fastest development time was recorded with CFE and CFC. The highest survivorship (98%) was observed in CFG, CFE, and CFC. The highest body mass (1.15 g) and body length (26.80 mm) were observed in crickets fed CFG. By comparison, crickets fed control feed averaged a body mass of 0.81 g and a body length of 23.55 mm. The feed conversion ratio for fed CFG, CFE, and CFC was 1.71. Crickets raised on CFH and CFG had the lowest cost of feeding per kg live mass gain. Crickets fed on CFF had the highest quantity of protein (67%), followed by those fed CFG (65% protein); crickets with the lowest protein content (50%) were fed CFJ. Crickets fed on CFG had the highest mineral content. Linoleic acid, oleic acid, and palmitic acid were the major fatty acids. The findings indicate that formulated feeds from weeds and agro-byproducts have great potential to be used as an alternative feed source for crickets for two reasons: their capacity to positively influence the biology and nutrition of the cricket, and they can serve as an inexpensive replacement for chicken feed.
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http://dx.doi.org/10.3390/foods13193139 | DOI Listing |
Objective: To evaluate the effect of fasting duration and diet types (plant-based and crickets) on plasma glucose, uric acid, cholesterol, triglycerides, nonesterified fatty acid, β-hydroxybutyric acid (BHBA), and bile acids in bearded dragons after a single feeding.
Methods: Hepatic fat content was estimated by a CT scan. Animals were randomly divided into 2 groups, each receiving either a plant-based or cricket diet.
R Soc Open Sci
December 2024
Department of Biology, Carleton University, Ottawa, Ontario K1S 5B6, Canada.
J Appl Microbiol
December 2024
Department of Animal Biosciences, University of Guelph, 50 Stone Rd E, Guelph, Ontario N1G 2W1, Canada.
Aging Pathobiol Ther
March 2024
Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA.
Human-based research on the biology of aging poses challenges due to ethical, social, and cost considerations. Animal models offer a pragmatic alternative, although no single model fully replicates all aspects of human aging. One unexplored model for studying aging is the house cricket ().
View Article and Find Full Text PDFFoods
September 2024
Department of Feed Development, Madagascar Biodiversity Center, Antananarivo 101, Madagascar.
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