Screening of in vitro nutrient digestibility coefficients of selected insect meals in broiler chickens, black‐meat chickens and quails

Abstract

The objective of this study is to identify potential insect species comparing with commonly used protein sources based on efficiency of the in vitro digestibility on dry matter (DMd), organic matter (OMd) and crude protein (CPd) in broiler chickens, black‐meat chickens (Native breed) and quails. Each of gastric mucosa, pancreas and duodenal mucosa were obtained from proventriculus, pancreas and duodenum, respectively. Crude digestive enzyme extracts (CTE) were extracted from these organs to perform in vitro digestibility. Eighteen insect samples and six commonly used protein sources were served as substrates which were evaluated on DMd, OMd and CPd in triplicate for each substrate. The CTE from gastric mucosa was used to simulate proventriculus, whereas small intestine was simulation by adding the CTE from pancreas and duodenum. The large variation of chemical composition between insect meals was presented. For commonly used protein sources, animal proteins were higher on digestibility than plant proteins (p < .001). Quails represented a great potential to digest insect meals comparing other animals. Based on CPd results, there were potential insect species for broiler chickens (Achroia grisella: AG, Tenebrio molitor: TM and Musca domestica), black‐meat chickens (Patanga succincta, TM and AG) and quails (Hermetia illucens, Acheta domesticus and Locusta migratoria; p < .001). The evidences from this study suggest that these insect species contain a great potential to use as alternative protein sources promoting an animal production with sustainability. However, the in vivo experimentation must be performed to confirm in further study.

Effects of eri silkworm (Samia ricini) pupae inclusion in broiler diets on growth performances, health, carcass characteristics and meat quality

“…Crude fiber, ADF and chitin [ 1 , 11 ] in insect meal are negatively correlated with protein digestibility. Therefore, supplementing broiler feed with insects that contain high levels of these chemical components could lead to lower protein digestion and, consequently, poor performance.…”

“…Eri silkworm pupae were obtained from the Queen Sirikit Department of Sericulture (Bangkok, Thailand), where they had been boiled, subjected to silk reeling and frozen at −20°C before arriving at the experimental site at the Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand. The eri silkworm pupae were dried at 60°C for 48 h, ground to 1 mm and kept at −20°C for use as an ingredient in experimental diets [ 11 ].…”

“…Interestingly, cassava leaves by-products from cassava production are used for eri silkworm feed; these leaves are low cost and support an upcycling economy. The pupal stage contains high quality nutrients and is rich in crude protein (CP), from 49.4% to 54.6% [ 6 , 11 ]. The in vitro digestibility of CP based on simulations of the broiler digestive tract is similar to dehulled soybean meal [ 11 ].…”

“…The pupal stage contains high quality nutrients and is rich in crude protein (CP), from 49.4% to 54.6% [ 6 , 11 ]. The in vitro digestibility of CP based on simulations of the broiler digestive tract is similar to dehulled soybean meal [ 11 ]. Moreover, people prefers to consume mulberry silkworm rather than eri silkworms [ 10 ].…”

Nutritional metabolism evaluation and image segmentation of the chicken muscle and internal organs for automatic evisceration

“…In recent years, the rapid increase in human population and increasing demand for poultry meat escalated the large‐scale breeding, so more attention has been paid to the research and development of poultry processing equipment (Andersen, 2013; Dao et al, 2021; Kovitvadhi et al, 2020; Sedgh‐Gooya et al, 2020; Seo et al, 2019; Wu et al, 2017). Poultry meat processing factories also gradually began to study the automatic slaughter of poultry and related technology development.…”