Apparent nutrient digestibility, metabolizable energy and apparent ileal amino acid digestibility of commercial partially defatted Hermetia illucens meal for laying hens

IF 4.7 3区农林科学 Q1 ENTOMOLOGY

Journal of Insects as Food and Feed Pub Date : 2023-12-08 DOI:10.1163/23524588-20230106

C. Kwakernaak, M.V. Spankeren, M. Dalim, B.A. Loureiro, L. Star, A. Paul

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引用次数: 0

Abstract

A digestibility study with laying hens was carried out to determine the nutritional value of a commercial and representative (batch to batch variance adjusted) insect meal based on Hermetia illucens (HI) larvae, (from black soldier fly) which was the objective in this study. A basal diet (BD; CP 15%), formulated and fed as such and an experimental diet (HD; CP 21%) consisting of BD with inclusion of 18% of the HI meal were used in the study. The BD and HD were fed to eight and six replicate metabolic cages, respectively, with eight Dekalb White laying hens each from 25 to 27 weeks of age. Diets (pelleted with TiO2 as marker) and water were available for ad libitum intake. Excreta was collected during the last three days to determine AMEn and apparent total tract faecal nutrient digestibility coefficients (ATTDC). Distal ileal content was collected at the last day of the experiment to determine apparent ileal amino acids digestibility of diets and HI meal. Using table values for endogenous losses standardised ileal amino acids digestibility coefficient (SIDC) of HI meal were also calculated. Analysed nutrients (g/kg) in HI meal were: 47 moisture, 529 crude protein, 71 ash, 135 fat and thus 218 was calculated as carbohydrates. Determined AME AMEn for HI meal was 3,846 kcal/kg dry matter (DM) and AMEn was 3,498 3,671 kcal/kg DM and ATTDC AFD for crude protein, crude fat and carbohydrates was 0.830, 0.940 and 0.680, respectively. Average SID coefficient for the 18 amino acids was 0.861 86.1%. Among indispensable amino acids SIDC ranged from 0.790% for threonine to 0.950% for phenylalanine and was 0.840% for lysine. These findings highlight that HI meal is an interesting alternative protein source for soybean meal (SBM). Besides market prices and availability, demands for more sustainable poultry production will determine the use of HI meals as alternative for SBM in poultry diets in the near future, especially in regions where SBM is imported from overseas.

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蛋鸡食用部分脱脂的商品雌马粉的表观营养消化率、代谢能和表观回肠氨基酸消化率

本研究以黑虻(Hermetia illucens, black soldier fly)幼虫为原料，对蛋鸡进行消化率研究，以确定具有代表性(批次间方差调整)的商品昆虫饲料的营养价值。基础日粮;CP 15%)，按此配制饲养，并饲喂试验饲粮(HD;研究中使用的是CP(21%)组成的BD和18%的HI粉。25 ~ 27周龄，BD组和HD组分别饲喂8个和6个重复代谢笼，每笼8只迪白蛋鸡。饲粮(以TiO2为标记物的颗粒状)和水可随意摄入。最后3 d收集粪便，测定AMEn和全肠营养物质表观消化系数(ATTDC)。试验最后一天采集远端回肠含量，测定饲粮和HI粕的表观回肠氨基酸消化率。利用内源损失表值计算了HI饲料的标准化回肠氨基酸消化系数(SIDC)。HI粉的营养成分(g/kg)为:水分47，粗蛋白质529，灰分71，脂肪135，碳水化合物218。测定HI粕的AME - AMEn为3,846 kcal/kg干物质(DM)， AMEn为3,498 3,671 kcal/kg干物质，粗蛋白质、粗脂肪和碳水化合物的ATTDC - AFD分别为0.830、0.940和0.680。18个氨基酸的平均SID系数为0.861 86.1%。在必需氨基酸中，苏氨酸的SIDC为0.790%，苯丙氨酸为0.950%，赖氨酸为0.840%。这些结果表明，高蛋白粉是一种有趣的替代豆粕蛋白质来源。除了市场价格和可得性外，对更可持续家禽生产的需求将决定在不久的将来，特别是在从海外进口SBM的地区，在家禽日粮中使用HI饲料作为SBM的替代品。

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来源期刊

Journal of Insects as Food and Feed Agricultural and Biological Sciences-Insect Science

CiteScore

7.00

自引率

17.60%

发文量

133

期刊介绍： The Journal of Insects as Food and Feed covers edible insects from harvesting in the wild through to industrial scale production. It publishes contributions to understanding the ecology and biology of edible insects and the factors that determine their abundance, the importance of food insects in people’s livelihoods, the value of ethno-entomological knowledge, and the role of technology transfer to assist people to utilise traditional knowledge to improve the value of insect foods in their lives. The journal aims to cover the whole chain of insect collecting or rearing to marketing edible insect products, including the development of sustainable technology, such as automation processes at affordable costs, detection, identification and mitigating of microbial contaminants, development of protocols for quality control, processing methodologies and how they affect digestibility and nutritional composition of insects, and the potential of insects to transform low value organic wastes into high protein products. At the end of the edible insect food or feed chain, marketing issues, consumer acceptance, regulation and legislation pose new research challenges. Food safety and legislation are intimately related. Consumer attitude is strongly dependent on the perceived safety. Microbial safety, toxicity due to chemical contaminants, and allergies are important issues in safety of insects as food and feed. Innovative contributions that address the multitude of aspects relevant for the utilisation of insects in increasing food and feed quality, safety and security are welcomed.