135893 20260217205516.0 doi 10.1080/1828051X.2024.2362765 sideral 138902 ART-2024-138902 eng Fondevila, Guillermo Universidad de Zaragoza Growth performance and chemical composition of tenebrio molitor larvae grown on substrates with different starch to fibre ratios 2024 Access copy available to the general public Unrestricted Production of insects as animal protein source has increased recently but the information on nutrient requirements for optimal growth is still scarce. The effects of carbohydrate composition of the substrate on growth performance and chemical composition of Tenebrio molitor larvae were evaluated. Three substrates based on different proportions of wheat grain, wheat bran and soybean meal were formulated to contain three starch to neutral detergent fibre (NDF) ratios: low (1.0; LSF), medium (1.2; MSF) and high (1.4; HSF), at a common N level. Each treatment was replicated five times in trays containing 23 g of substrate and 40 larvae (2.95 mg average weight) each. Weight of the larvae and the substrate remaining per tray were weekly monitored from 21 to 49 days of experiment and larvae within the same experimental treatment were pooled at the end of the trial for chemical analysis. No treatment differences were observed for larval growth or mortality (p > 0.05). The starch to NDF ratio in the substrate did not affect larval composition in terms of dry matter, nitrogen or ether extact contents or the amino acid composition of the protein fraction. Within the range of ingredient composition considered, the starch to NDF ratio in the substrate has a minor influence on growth performance and chemical composition of T. molitor larvae. info:eu-repo/semantics/openAccess by-nc-sa https://creativecommons.org/licenses/by-nc-sa/4.0/deed.es 2.3 2024 VETERINARY SCIENCES 30 / 170 = 0.176 2024 Q1 T1 AGRICULTURE, DAIRY & ANIMAL SCIENCE 20 / 86 = 0.233 2024 Q1 T1 0.598 2024 Animal Science and Zoology 2024 Q1 4.9 2024 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Remiro, Ana Fondevila, Manuel Universidad de Zaragoza (orcid)0000-0002-0712-1185 2008 700 Universidad de Zaragoza Dpto. Produc.Animal Cienc.Ali. Área Producción Animal 23, 1 (2024), 887-894 Ital. J. Anim. Sci. Italian Journal of Animal Science 1594-4077 1215183 http://zaguan.unizar.es/record/135893/files/texto_completo.pdf Versión publicada 1033513 http://zaguan.unizar.es/record/135893/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:135893 articulos driver 2026-02-17-20:27:00 ARTICLE