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<title cf:type="text"><![CDATA[Editorial Office of Journal of Environmental Entomology -->Edible and Feeding Insects]]></title>
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<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research progress on the application of black soldier fly in fish farming]]></title>
<link><![CDATA[http://hjkcxb.alljournals.net/hjkcxben/ch/reader/view_abstract.aspx?file_no=202405007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Aquaculture, a key component of the global food supply chain, provides a rich source of protein. However, this sector faces pressing challenges, with water pollution and a warming climate, traditional sources of feed protein, such as fishmeal and soya, are no longer sufficient for production and there is an urgent need to find sustainable sources of feed protein. Black soldier fly (Hermetia illucens L.) has attracted much attention in recent years as an insect protein resource. Black soldier fly larvae(BSFL) is widely distributed around the world and can efficiently convert waste into valuable feed protein while reducing environmental pollution. In this paper, we discussed the application of black soldier fly as a protein substitute in aquaculture,emphasizing its influence on the growth performance, economic benefits, meat quality, and immune function of cultured aquatic species. Additionally, we investigate the impact of black soldier fly at young age stages on the quality of aquatic products. Through these two focal points, we systematically summarize the primary challenges and issues that may arise when utilizing BSFL as a feed substitute in the aquaculture industry.]]></description>
<pubDate>2024/9/29 9:07:36</pubDate>
<category><![CDATA[Edible and Feeding Insects]]></category>
<author><![CDATA[ZHOU Xing-Tou, MA Chong, HU Bin, HU Wen-Feng, YANG Mei-Yan]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>ZHOU Xing-Tou, MA Chong, HU Bin, HU Wen-Feng, YANG Mei-Yan</atom:name>
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<guid><![CDATA[http://hjkcxb.alljournals.net/hjkcxben/ch/reader/view_abstract.aspx?file_no=202405007&flag=1]]></guid><cfi:id>5</cfi:id><cfi:read>true</cfi:read></item>
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<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research on material temperature monitoring and early warning strategy under high density breeding condition of Black Soldier Fly (BSF)]]></title>
<link><![CDATA[http://hjkcxb.alljournals.net/hjkcxben/ch/reader/view_abstract.aspx?file_no=202405008&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[To identify more effective strategies for monitoring material temperature in Black Soldier Fly breeding, the study examined the impact of material temperature depth, monitoring methods, and locations on the monitoring effectiveness during the conversion of chicken manure into feedstock. This was conducted under high-density feeding conditions in a laboratory setting. The findings revealed that the surface temperature of black soldier fly breeding materials was notably higher than at other depths, decreasing as the depth increased, and there was a positive correlation between surface and depth temperatures (P<0.05). Thermal resistance, infrared sensors, and thermal imaging were all effective in measuring material temperature. Correlation analysis with thermal resistance measurements showed that infrared sensors provided superior correlations, with the quadratic polynomial equation demonstrating the highest accuracy (R2=0.952). Temperature measurements at different locations indicated that the average center temperature throughout the breeding cycle was significantly higher than at the periphery, making it a key monitoring point for high-temperature early warnings in black soldier fly breeding. These results offer a scientific foundation for further research into material temperature control strategies and an intelligent control system for black soldier fly breeding environments.]]></description>
<pubDate>2024/9/29 9:07:36</pubDate>
<category><![CDATA[Edible and Feeding Insects]]></category>
<author><![CDATA[SONG Yu, YE Xiao-Mei, KONG Xiang-Ping, WANG Cong, MA Qiu-Qin, ZHU Fei, DU Jing]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>SONG Yu, YE Xiao-Mei, KONG Xiang-Ping, WANG Cong, MA Qiu-Qin, ZHU Fei, DU Jing</atom:name>
</atom:author>
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<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Probiotic lactic acid bacteria promote the growth and protein accumulation of Hermetia illucens L. larvae]]></title>
<link><![CDATA[http://hjkcxb.alljournals.net/hjkcxben/ch/reader/view_abstract.aspx?file_no=202405009&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Hermetia illucens L. larvae can convert organic waste such as food waste. They produce insect protein, which can be used for livestock and aquaculture feed. Meanwhile, their frass serves as high-quality organic fertilizer. Probiotic microbes play a vital role in the processing of organic waste by the black soldier fly larvae (BSFL). However, the role of lactic acid bacteria in promoting the efficient processing of organic waste by black soldier fly had rarely been studied. This study focused on the black soldier fly larvae and evaluated the impact of different lactic acid bacteria strains added to the artificial feed system for these larvae. The goal was to identify lactic acid bacteria that enhance larval survival rate, conversion efficiency, and protein accumulation, designating them as probiotic lactic acid bacteria. By adding lactic acid bacteria to the black soldier fly larvae’s artificial feed system, three candidate probiotic lactic acid bacteria strains (L4, L7, and L8) were preliminarily screened. After morphological observation, physiological and biochemical identification, and 16S rDNA sequence analysis, L4 was identified as Levilactobacillus brevis, L7 as Levilactobacillus cerevisiae, and L8 as Lactiplantibacillus plantarum. Compared to the control group, the addition of probiotic lactobacilli L4, L7, and L8 significantly increased the fresh weight of black soldier fly larvae by 5.93%, 6.41%, and 9.43%, respectively. Additionally, the conversion rate of the larvae improved by 8.01%, 7.18%, and 13.60%, while the reduction in feed material was enhanced by 3.47%, 4.75%, and 6.28%. Importantly, L4, L7, and L8 demonstrated a significant promotion effect on protein accumulation in black soldier fly larvae. Compared to the control group, the crude protein content of the larvae increased significantly by 5.14%, 3.13%, and 4.70%, respectively. Additionally, the total protein yield of the larvae increased significantly by 14.40%, 14.84%, and 17.63%. In summary, this study screened, identified, and evaluated lactic acid bacteria with probiotic effects on black soldier fly larvae. These lactic acid bacteria not only enhance the larvae’s conversion rate of artificial feed, resulting in greater biomass, but also promote protein accumulation in the larvae, leading to higher-quality insect protein. The research findings are of significant importance in revealing the synergistic metabolic mechanisms between black soldier fly larvae and gut microbiota, and they hold great potential for large-scale conversion of organic waste by black soldier fly larvae.]]></description>
<pubDate>2024/9/29 9:07:36</pubDate>
<category><![CDATA[Edible and Feeding Insects]]></category>
<author><![CDATA[YU Ming-Yang, SHAO Ming-Ying, YU Yong-Qiang, ZHANG Jia, CAI Min-Min, ZHENG Long-Yu, ZHANG Ji-Bin]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>YU Ming-Yang, SHAO Ming-Ying, YU Yong-Qiang, ZHANG Jia, CAI Min-Min, ZHENG Long-Yu, ZHANG Ji-Bin</atom:name>
</atom:author>
<guid><![CDATA[http://hjkcxb.alljournals.net/hjkcxben/ch/reader/view_abstract.aspx?file_no=202405009&flag=1]]></guid><cfi:id>3</cfi:id><cfi:read>true</cfi:read></item>
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<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Compartmentalized immune expression along the Hermetia illucens midgut forms characteristic gut microbiota]]></title>
<link><![CDATA[http://hjkcxb.alljournals.net/hjkcxben/ch/reader/view_abstract.aspx?file_no=202405010&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[The immune system in the black soldier fly larva (Hermetia illucens L., BSFL) gut must eliminate pathogens while tolerating the presence of symbiotic microbiota. The Tol and Imd pathway is an essential defense against invading pathogens in insect guts, but tolerance mechanisms are less understood. This study compared the BSFL midgut microbiota in different types of waste (food waste, bean dregs, and chicken manure) and found that Actinobacteria, Firmicutes, Bacteroidetes, and Proteobacteria were dominant in the midgut, and midgut could enrich Actinobacteria and Bacteroidetes. According to the random forest model prediction, the Dysgonomonas, Morganella, and Anaerococcus were most likely to be the characteristic genus in the midgut. Further research had shown that the microbial load in the posterior midgut was 4.52~12.6 times higher than that in the anterior and middle midgut, and that Pseudomonas aeruginosa was mainly enriched in the posterior midgut. In addition, the expression of antimicrobial peptides in the anterior and middle midgut was 1 645 times and 10.2 times higher than that in the posterior midgut, respectively, while the expression of negative feedback factors increased by 4.28~5.04 times in the posterior midgut. This study demonstrated that BSFL midgut had a reconstruction effect on microorganisms. The larvae screen microorganisms through antimicrobial peptides in the anterior midgut and inhibit the release of antimicrobial peptides in the posterior midgut to preserve symbiotic bacteria. Our study describes a ‘elimination-then-recruitment’ mechanism by which regional expression of immune system in midgut maintains their ability to resist pathogens while constructing protective zones for the symbiotic microbiota.]]></description>
<pubDate>2024/9/29 9:07:36</pubDate>
<category><![CDATA[Edible and Feeding Insects]]></category>
<author><![CDATA[HAN Lu-Ying, XIANG Fang-Ming, SUN Jia-Jie, LIU Cheng-Yuan, ZHANG Zhi-Jian]]></author>
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<atom:name>HAN Lu-Ying, XIANG Fang-Ming, SUN Jia-Jie, LIU Cheng-Yuan, ZHANG Zhi-Jian</atom:name>
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<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Response of Hermetia illucens L. to zinc ion stress based on transcriptome sequencing technology]]></title>
<link><![CDATA[http://hjkcxb.alljournals.net/hjkcxben/ch/reader/view_abstract.aspx?file_no=202405011&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Hermetia illucens is a globally significant resource insect. Excessive zinc ion (Zn2+) stress can adversely affect the growth and development of its larvae. Transcriptome analysis provides insights into the molecular mechanisms underlying the impact of Zn2+ stress on black hydra larvae. In this study, successive generations of Black Hydra larvae were subjected to different concentrations of Zn2+ (75, 150, 300, 1 200 mg/kg) stress, and the transcriptome of 6th instar larvae from the 5th generation was sequenced and analyzed by Illumina HiSeq 4000 high-throughput sequencing platform. The results showed that Zn2+ stress affected the gene expression in the fifth generation H. illucens larvae. Differentially expressed genes were observed in larvae treated with 75, 150, 300 and 1 200 mg/kg Zn2+, with counts ranging from 1 293/1 839 to 1 444/2 170 respectively. GO enrichment analysis indicated that differentially expressed genes primarily affected cellular processes and components such as cells and cell components; while molecular functions mainly involved catalytic activity and cell binding. KEGG enrichment differential analysis revealed that under 75 mg/kg Zn2+ stress, the differentially expressed genes were predominantly enriched in immune-related reactions, immune-related signal transduction pathways, and lipid metabolism. Conversely, under 300 mg/kg Zn2+ treatment, the differentially expressed genes were primarily enriched in amino acid metabolism and carbohydrate metabolism. Under 1 200 mg/kg Zn2+ stress, there was a significant impact on amino acid and lipid metabolism, immune-related reactions, and growth in H. illucens larvae. Most of these enriched differential genes associated with the aforementioned processes exhibited down-regulation. Therefore, Zn2+ stress exerted an influence on the expression of differential genes in H. illucens larvae; particularly at high concentrations of Zn2+, which mainly affected cell processes, catalytic activity, combined gene expression resulting mostly in down-regulation. Additionally, high concentrations of Zn2+ stress disrupted the immune system as well as environment-related signal transduction pathways and lipid metabolism in H. illucens larvae.]]></description>
<pubDate>2024/9/29 9:07:36</pubDate>
<category><![CDATA[Edible and Feeding Insects]]></category>
<author><![CDATA[XU Chen-Lu, LI Xiao-Ju, SUN Hong-Xia, XIA Qiang]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>XU Chen-Lu, LI Xiao-Ju, SUN Hong-Xia, XIA Qiang</atom:name>
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