探讨采食量对切除盲肠蛋鸡氨基酸消化率和代谢能的影响。

IF 3.5 2区农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY

Journal of the Science of Food and Agriculture Pub Date : 2025-09-22 DOI:10.1002/jsfa.70196

Adewunmi Omotoso, Elena Werner, Nils Hautkapp, Markus Rodehutscord, Wolfgang Siegert

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引用次数: 0

摘要

背景：以切除盲肠的蛋鸡为试验材料，研究采重对黄粉黄粉（tenbrio molitor， TM）组成、氨基酸（AA）消化率和代谢能（MEN）的影响。部分脱脂和干燥的TM变体中，幼虫的中位数无麸收获重量为60、80、100和120 mg，蛹重为125 mg。采用6 × 6拉丁方试验设计，在6个试验期内分别饲喂6只切除盲肠的蛋鸡5种TM变异和1种基础饲粮。结果：不同菌株的AA /粗蛋白含量基本一致。粗蛋白质和粗脂肪含量在不同品种间无显著差异。蛹的粗蛋白质含量较低，粗脂肪含量较高。各收获重TM的无脂干物质AA含量均较低。不同品种幼虫对AA的消化率差异不大，蛹消化率最高。L60期除精氨酸和苏氨酸外，其余AA的消化率均低于蛹（P≤0.050）；L100中的Arg、Asx、Glx、Lys和Thr， L120中除Arg、Asx、Glx、Leu、Phe、Pro和Thr外的所有AA。不同幼虫变异间MEN差异不显著，但蛹MEN较高（P≤0.050）。结论：不同采重的部分脱脂TM幼虫对AA消化率和man没有影响，而蛹的AA消化率和man较高。在产蛹排放保持在较低水平的情况下，饲喂部分脱脂的TM蛹代替幼虫可以减少产蛋过程中的氮排放。因此，优化TM蛹的脱脂工艺可能有助于缓解高脂肪含量带来的挑战，从而有可能实现其在饲料应用中较高的AA消化率带来的好处。©2025作者。约翰威利父子有限公司代表化学工业协会出版的《食品与农业科学杂志》。

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Accessing the impact of harvest weights of Tenebrio molitor on amino acid digestibility and metabolizable energy in cecectomized laying hens.

Background: The effects of harvest weights on composition, amino acid (AA) digestibility and metabolizable energy (ME_N) of Tenebrio molitor (TM) were investigated using cecectomized laying hens. The partially defatted and dried TM variants comprised median individual frass-free harvest weights of 60, 80, 100, and 120 mg of larvae, and a pupae weight of 125 mg. Diets containing the five TM variants and a basal diet were fed to six cecectomized laying hens over six experimental periods in a 6 × 6 Latin square design.

Results: The AA concentrations relative to crude protein were similar among the TM larvae variants. Crude protein and crude fat contents did not differ between the larvae variants. Pupae had a lower crude protein and a higher crude fat concentration compared to the larvae variants. The AA concentrations in the fat-free dry matter of TM were low for all harvest weights. Larvae variants did not differ in AA digestibility, whereas pupae showed the highest values. Compared with pupae, larvae had a lower digestibility (P ≤ 0.050) for all AA except Arg and Thr in L60; Arg, Asx, Glx, Lys, and Thr in L100, and all AA except Arg, Asx, Glx, Leu, Phe, Pro, and Thr in L120. The ME_N did not differ among larvae variants but was higher for the pupae (P ≤ 0.050).

Conclusion: The present study did not indicate that partially defatted TM larvae of different harvest weights influenced AA digestibility and ME_N, whereas AA digestibility and ME_N of pupae was higher. Feeding partially defatted TM pupae instead of larvae could reduce nitrogenous emissions during egg production, provided that emissions from pupae production remain low. Therefore, optimizing the defatting process for TM pupae may help mitigate challenges associated with the higher fat content, potentially enabling the realization of the benefits from its higher AA digestibility in feed applications. © 2025 The Author(s). Journal of the Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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来源期刊

Journal of the Science of Food and Agriculture 工程技术-农业综合

CiteScore

8.10

自引率

4.90%

发文量

634

审稿时长

3.1 months

期刊介绍： The Journal of the Science of Food and Agriculture publishes peer-reviewed original research, reviews, mini-reviews, perspectives and spotlights in these areas, with particular emphasis on interdisciplinary studies at the agriculture/ food interface. Published for SCI by John Wiley & Sons Ltd. SCI (Society of Chemical Industry) is a unique international forum where science meets business on independent, impartial ground. Anyone can join and current Members include consumers, business people, environmentalists, industrialists, farmers, and researchers. The Society offers a chance to share information between sectors as diverse as food and agriculture, pharmaceuticals, biotechnology, materials, chemicals, environmental science and safety. As well as organising educational events, SCI awards a number of prestigious honours and scholarships each year, publishes peer-reviewed journals, and provides Members with news from their sectors in the respected magazine, Chemistry & Industry . Originally established in London in 1881 and in New York in 1894, SCI is a registered charity with Members in over 70 countries.