Supplementation of maize bran with either sunflower or oil palm seed cakes improves growth and nutritional value of the edible house cricket (Acheta domesticus)
Francis Sengendo, James Peter Egonyu, Anu Valtonen, Isabelle Noyens, Harriet Angwech, Martha Franny Alaroker, Philip Nyeko, Geoffrey Maxwell Malinga, Sabine Van Miert
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引用次数: 0
Abstract
The house cricket, Acheta domesticus (Linnaeus) (Orthoptera: Gryllidae) is one of the major insects successfully domesticated for food around the world. However, expensive feed is still a major challenge in the production of the insect, leading to low returns. This study aimed at developing an alternative diet for mass rearing of A. domesticus. We tested five diets, namely commercial chicken mash (CCM; control diet), maize bran supplemented with 50% sunflower seed cake (SFC50), 50% shea seed cake (SBC50), 50% oil palm seed cake (POC50), and 25% maize bran + 25% of each of the oil seed cakes (MSSP25). The experiment was arranged as a randomized unreplicated block design with 50 blocks, each containing one replicate of each diet treatment. Survival of A. domesticus fed on maize bran supplemented with either sunflower seed cake or oil palm seed cake was comparable to that of those fed on the control diet. However, emerging adults on oil seed supplemented diets (SFC50 and POC50) were heavier than their counterparts raised on the control diet. The shortest development time was observed among A. domesticus fed on 50% sunflower seed cake compared to all other diets. Acheta domesticus fed on the control diet was richer in protein, while those reared on maize bran supplemented with either sunflower seed cake or oil palm seed cake contained higher levels of fat, minerals (sodium, calcium, and iron) and polyunsaturated fatty acids (PUFAs). We conclude that supplementation of maize bran with 50% of either sunflower seed cake or oil palm seed cake improves survival and weight gain of A. domesticus and shortens their development time. In addition, these diets modify the nutritional composition of A. domesticus, especially lipids, minerals, and PUFAs. We recommend the use of SFC50 and POC50 as alternative diets to commercial chicken mash in the mass production of A. domesticus.
期刊介绍:
Entomologia Experimentalis et Applicata publishes top quality original research papers in the fields of experimental biology and ecology of insects and other terrestrial arthropods, with both pure and applied scopes. Mini-reviews, technical notes and media reviews are also published. Although the scope of the journal covers the entire scientific field of entomology, it has established itself as the preferred medium for the communication of results in the areas of the physiological, ecological, and morphological inter-relations between phytophagous arthropods and their food plants, their parasitoids, predators, and pathogens. Examples of specific areas that are covered frequently are:
host-plant selection mechanisms
chemical and sensory ecology and infochemicals
parasitoid-host interactions
behavioural ecology
biosystematics
(co-)evolution
migration and dispersal
population modelling
sampling strategies
developmental and behavioural responses to photoperiod and temperature
nutrition
natural and transgenic plant resistance.