农学最新文献

{"title":"Reusing biofloc-culture water and microbubble aeration for culturing the white-leg shrimp Litopenaeus vannamei","authors":"Ezzah Rahimah Samsuri ,&nbsp;Poobalan Ganesan ,&nbsp;Iswadi Jauhari ,&nbsp;Geok Yuan Annie Tan ,&nbsp;Faik A. Hamad","doi":"10.1016/j.aaf.2024.04.010","DOIUrl":"10.1016/j.aaf.2024.04.010","url":null,"abstract":"<div><div>This study investigated the effects of reusing biofloc-culture water for culturing the white-leg shrimp <em>Litopenaeus vannamei</em>. Experiments were conducted for two continuous cycles without water exchange for 30 days during the nursery stage. The studies were performed with two different aeration systems, namely microbubbles (MB) and large air bubbles (LB). Water quality parameters such as dissolved oxygen (DO), temperature, pH, salinity, alkalinity, total ammonia nitrogen (TAN), nitrite, nitrate, settleable solids (SS), and total suspended solids (TSS) were recorded throughout the culture days. Also, comparisons were performed on parameters of the shrimp growth, i.e., body weight and length, feed conversion ratio (FCR), and specific growth rates (SGR) for the 30-day culture for Cycles 1 and 2. Cycle 2 showed no deterioration in water quality and no significant difference in growth performance compared to Cycle 1 for either aeration method (MB and LB). However, when comparing between aeration methods, MB aeration significantly improved the DO of the water and accelerated the conversion of TAN to nitrate. Shrimps in the MB aeration system were significantly larger (by 39%) with a lower FCR value (reduced by 30%) than in the LB aeration system. Harmful bacteria from the <em>Vibro</em> group were detected. However, they occurred at a minimum level in both cycles and aeration types. Overall, the biofloc-culture water might be reused for the subsequent cycle, while the MB aeration might promote the growth of biofloc and <em>L. vannamei</em>.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 4","pages":"Pages 687-695"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141026331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of dietary Pediocuccus pentosaceus and/or ferulic acid on performance, digestive enzymes, blood biochemistry, and growth-related genes expression in rainbow trout (Oncorhynchus mykiss)","authors":"Majid Habibnia ,&nbsp;Somayeh Bahram ,&nbsp;Masoumeh Bahrekazemi ,&nbsp;Seyed Rohollah Javadian ,&nbsp;Masoud Hedayatifard ,&nbsp;Mohsen Abdel-Tawwab","doi":"10.1016/j.aaf.2024.06.005","DOIUrl":"10.1016/j.aaf.2024.06.005","url":null,"abstract":"<div><div>This study investigated the effects of dietary <em>Pediocuccus pentosaceus</em> (PP) and/or ferulic acid (FA) on the performance, digestive enzymes, and growth-related genes expression in rainbow trout (<em>Oncorhynchus mykiss</em>). Fish (94.30 ± 1.77 g) were fed on the control diet (T0), 10⁸ CFU/g of PP probiotic (T1), 100 mg/kg of FA (T2), and a combination of PP and FA (T3) for 8 weeks. The present results indicated that rainbow trout fed with PP and/or FA showed better final weight, weight gain, and feed conversion ratio than the control group (<em>P</em> &lt; 0.05). The activities of trypsin and chymotrypsin were higher in T2 and T3 than in the control group (<em>P</em> &lt; 0.05). Meanwhile activities protease and alpha-amylase were highest in T2, lipase activity was highest in T3. Compared to the control group, total protein, total antioxidant activity, and cholesterol levels were significantly (<em>P</em> &lt; 0.05) higher in T2 and T3 with no significant (<em>P</em> &gt; 0.05) differences between them. Supplemented diets with FA and/or PP decreased markedly (<em>P</em> &lt; 0.05) triglycerides levels and its lowest levels were obtained in T2 and T3 with no significant (<em>P</em> &gt; 0.05) differences between them. The relative expression levels of <em>GHRL</em> and <em>GHr</em> genes were significantly higher in the treatments fed with FA and/or PP (T1 – T3) than those in the control group (<em>P</em> &lt; 0.05). Highest upregulation of <em>IGF-1,</em> and <em>IGF-II</em> gens were detected in T2 and T3 with no significant (<em>P</em> &gt; 0.05) differences between them. In conclusion, it was shown that both dietary supplements have the potential role to enhance the performance, digestive enzymes, and growth related-genes expression in rainbow trout. Feeding fish on FA-enriched diets showed superior enhancements than that fed on the PP diet only.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 4","pages":"Pages 628-635"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141705847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterization of a new strain (SR-11) with thin blades and fast growth in Pyropia haitanensis (Bangiales, Rhodophyta)","authors":"Min Tian ,&nbsp;Hongchang Ding ,&nbsp;Xinghong Yan","doi":"10.1016/j.aaf.2024.05.004","DOIUrl":"10.1016/j.aaf.2024.05.004","url":null,"abstract":"<div><div>A new strain (<em>SR-11</em>) was selected from an intraspecific hybridization of a new cultivar (<em>SF-2</em>, ♀) and an improved strain (<em>HR-6</em>, ♂) of <em>Pyropia haitanensis</em>, and the characteristics of blades thickness, growth rate, phycobiliprotein content, and differentiation rate of conchocelis of <em>SR-11</em> were analyzed through laboratory culture. After being cultured for 45 days, the mean thickness of <em>SR-11</em> was 22.9 μm, which was 37.1% and 18.5% thinner than that of <em>SF-2</em> and <em>HR-6</em>, respectively; the phycobiliprotein of <em>SR-11</em> was 94.6 mg/g, increased by 4.1% and decreased by 8.4% compared with that of <em>SF-2</em> and <em>HR-6</em>, respectively. After being cultured for 55 days, the mean length of the <em>SR-11</em> was 293.7 cm, which was 3.1 and 7.2 times longer than that of <em>SF-2</em> and <em>HR-6</em>, respectively. After the conchocelis inoculated shell were raised the temperature and shrunk of light time, the time for the emergence of a lot of conchosporangial branches in <em>SR-11</em> was shorter than that of <em>SF-2</em>. The total number of conchospores released from per shell in <em>SR-11</em> was 144.5 × 10⁴, which was 78.1% and 11.9% higher than that of <em>SF-2</em> and <em>HR-6</em>, respectively. In summary, the <em>SR-11</em> has thinner blades, and its fresh blades may be further processed into higher value-added products. Besides, it has the advantages of fast growth, high quality and large number of conchospores released, which is expected to be applied in production cultivation.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 4","pages":"Pages 569-575"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141713406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum regarding missing ethics statement in previously published articles","authors":"","doi":"10.1016/j.aaf.2025.01.005","DOIUrl":"10.1016/j.aaf.2025.01.005","url":null,"abstract":"","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 4","pages":"Page 742"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144633735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dietary supplementation of Withania somnifera and Asparagus racemosus enhances growth performance coupled with transcriptional modulation of growth and immune responsive genes in fish, Channa punctatus","authors":"Sunil P. Trivedi ,&nbsp;Shikha Dwivedi ,&nbsp;Shefalee Singh ,&nbsp;Adeel Ahmad Khan ,&nbsp;Manoj Kumar ,&nbsp;Indrani Dubey ,&nbsp;Abha Trivedi ,&nbsp;Vivek Kumar ,&nbsp;Kamlesh K. Yadav","doi":"10.1016/j.aaf.2024.03.007","DOIUrl":"10.1016/j.aaf.2024.03.007","url":null,"abstract":"<div><div>The growth amelioration potential of two herbal feed supplements, <em>Withania somnifera</em> and <em>Asparagus racemosus</em>, individually and in combination, was evaluated up to 60 days of feeding trial in a teleost, <em>Channa punctatus</em>. 15 days laboratory acclimatized fish (14 <span><math><mrow><mo>±</mo></mrow></math></span> 1) g; (11 <span><math><mrow><mo>±</mo></mrow></math></span> 1) cm were randomly distributed in 10 groups- C (control), S1, S2, S3, A1, A2, A3, AS1, AS2, and AS3, based on the composition of the dietary supplements. Each group had 10 specimens (n = 10), and the experiment was performed in triplicate. Elevated final body weight (FBW) was observed in all groups except S1 after 60 days, and weight gain percentage (WG %) showed a significant increase in all groups except S1 after both 30 and 60 days of the sampling periods with a significance level of <em>P</em> &lt; 0.05. In contrast, the feed conversion ratio (FCR) significantly <em>(P &lt;</em> 0.05) decreased in all experimental groups, except S1, as compared to the control, after 60 days of sampling duration. The hepatosomatic index (HSI %) significantly <em>(P &lt;</em> 0.05) increased in groups - S3, A2, A3, AS1, AS2, and AS3; while the viscerosomatic index (VSI %) also significantly <em>(P &lt;</em> 0.05) enhanced in groups - A3, AS1, AS2, and AS3 as compared to C. Significant <em>(P &lt;</em> 0.05) elevations in activities of both trypsin and chymotrypsin, after both the sampling durations were recorded; the maximum being in AS3 as 3.47 and 2.06-fold, respectively, after 60 days, suggests greater protein digestibility. The qRT-PCR analysis displays an up-regulation of growth-related genes-<em>gh</em>, <em>igf-1</em>, and <em>igf-2a</em>, both in the liver and muscle tissues. Also, <em>gh</em> showed greater expression at transcriptional levels in liver tissues (4.86)-fold than muscle tissues (4.43)-fold in AS3; whereas <em>igf-1</em> and <em>igf-2a</em> were significantly <em>(P &lt;</em> 0.05) upregulated in the muscles of AS2 and AS3 as compared to C. Further, significantly <em>(P &lt;</em> 0.05) increased expression of the transforming growth factor-β (<em>tgf-β</em>) in liver tissues was recorded in groups- AS1, AS2, and AS3, as compared to C, suggesting the immunoprotective role of combined dietary supplements. The study envisages that 3% dietary supplementation with both herbs (AS3) sufficiently influences the activities of digestive enzymes, growth indices, and mRNA levels of growth-related and immunoprotective genes in the fish. The study thus finds ample scope in aquaculture.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 4","pages":"Pages 617-627"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144633613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum regarding missing ethics statement, consent to participate statements and declaration of competing interest in articles previously published in Volume 3","authors":"","doi":"10.1016/j.aaf.2024.11.008","DOIUrl":"10.1016/j.aaf.2024.11.008","url":null,"abstract":"","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 4","pages":"Pages 739-741"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144633734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent advances in the study of 3' untranslated regions of eukaryotic mRNAs.","authors":"Hao-Yu Luo, Xiao-Hong Yan, Fang Mu, Ning Wang","doi":"10.16288/j.yczz.24-283","DOIUrl":"https://doi.org/10.16288/j.yczz.24-283","url":null,"abstract":"<p><p>The 3' untranslated regions (3'UTRs) are a component of eukaryotic messenger RNAs (mRNAs) and located at their 3'-most ends. 3'UTRs play crucial roles in post-transcriptional regulation of gene expression, regulating cleavage and polyadenylation, mRNA stability, mRNA translation and localization. With deepening research of the 3'UTRs, and with advent of various omics methods, a few unexpected functions of the eukaryotic 3'UTRs have been uncovered. In this review, we summarize recent advances in the study of 3'UTRs and propose the future research directions for studying the roles and mechanisms of the 3'UTRs, with the aim to provide a better reference for comprehensively investigating gene function and regulation.</p>","PeriodicalId":35536,"journal":{"name":"遗传","volume":"47 6","pages":"616-624"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144318182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of drought stress on morpho-physiological characteristics of rapeseed cultivars (Brassica napus L.)","authors":"Saeid Zamani,&nbsp;Ali Arminian,&nbsp;Batool Zarei,&nbsp;Somayeh Hajinia","doi":"10.1016/j.ocsci.2025.04.004","DOIUrl":"10.1016/j.ocsci.2025.04.004","url":null,"abstract":"<div><div>The morpho-physiological responses of 15 rapeseed genotypes to drought stress were assessed, revealing strong correlations among various characteristics. Under control conditions, the genotype Angelico fascinated the highest chlorophyll content, while Nilofar had the highest carotenoid content, grain yield, and harvest index (HI). Talaye recorded the highest proline content. Under drought conditions, Nafis maintained the highest plant height, pod number, biomass, and grain yield. Angelico demonstrated the highest chlorophyll and relative water content (RWC). Nima showed the highest carotenoid content, Zarfam excelled in chlorophyll <em>b</em>, and Nafis recorded the highest proline content. Overall, drought stress resulted in a significant reduction in most morpho-physiological traits. In the principal component analysis (PCA), the first two components explained a substantial portion of the variation in both control and drought conditions, facilitating the classification of the genotypes into two distinct groups. Additionally, twelve drought stress indices further categorized the genotypes, with the first two components accounting for the majority of the variation (99.45%). Notably, the Nilofar, Nima, Nafis, and Shirali cultivars were grouped together under both control and drought conditions, exhibiting the highest grain yield. These genotypes could be considered drought-tolerant varieties of this study. The research identified stable and high-performing rapeseed genotypes, which are recommended for future breeding programs.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 2","pages":"Pages 165-176"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144516941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Harmonizing safety and development: effective conservation and sustainable utilization of China's human genetic resources.","authors":"Min Zhu, Huan-Lu Tan, Tian-Yu Zhao, Lin-Xiao Wang, Miao Kuang, Jian-Zhong Shen","doi":"10.16288/j.yczz.25-049","DOIUrl":"10.16288/j.yczz.25-049","url":null,"abstract":"<p><p>The management of human genetic resources constitutes a critical part of the national biosafety system. Its importance increasingly underscored by rapid development in biotechnology. After years of efforts, China has established a relatively comprehensive management system in areas such as legal infrastructure, regulatory mechanisms, and the conservation and utilization of human genetic resources. Nevertheless, facing the new demands of industry development in the new era and new situation, China still encounters numerous problems in the management of human genetic resources, such as less effective protection, inadequate rational utilization, a shortage of specialized personnel, and insufficient regulatory capabilities. To address these problems, this article systematically reviews the development of China's human genetic resources management system, analyzes the current main risks and challenges, and proposes targeted policy recommendations to harmonize development with safety imperatives, thereby facilitating the effective conservation and sustainable utilization of human genetic resources in China.</p>","PeriodicalId":35536,"journal":{"name":"遗传","volume":"47 6","pages":"611-615"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144318178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ARC microbial inoculants promote peanut growth and yield while suppressing Aspergillus flavus infection","authors":"Gege Zhang ,&nbsp;Ruinan Yang ,&nbsp;Xiaodi Ma ,&nbsp;Yuxuan Hong ,&nbsp;Ming Li ,&nbsp;Ling Cheng ,&nbsp;Xiaoqian Tang ,&nbsp;Qin Han ,&nbsp;Qi Zhang ,&nbsp;Peiwu Li","doi":"10.1016/j.ocsci.2025.04.002","DOIUrl":"10.1016/j.ocsci.2025.04.002","url":null,"abstract":"<div><div>Peanuts are important oilseed legume crops that are susceptible to contamination by <em>Aspergillus flavus</em> in soil, leading to serious economic losses. Previously, our research team developed the <em>Aspergillus-</em>Rihizobia coupling (ARC) microbial inoculants and found it can reduce <em>A. flavus</em> abundance in the soil and promote efficient nodulation in peanuts. However, the impact of ARC microbial inoculants on different resistant varieties of <em>A</em>. <em>flavus</em> remains unclear. In this study, we screened peanut varieties that were resistant and susceptible to <em>A. flavus</em> and evaluated their nodulation ability and growth performance after ARC microbial inoculants treatment in the field. The results demonstrated that the nodule number and nitrogenase activity of both varieties significantly increased after ARC microbial inoculants treatment, with the highly susceptible variety AH24 showing a greater increase. For photosynthetic parameters, both varieties also increased after ARC microbial inoculants treatment, but the increase was greater in the moderately resistant variety AH1 than in the highly susceptible variety AH24. Finally, we found that the yield and yield-related traits of the moderately resistant variety AH1 were better than those of the highly susceptible variety AH24. After ARC microbial inoculants treatment, the yield traits of both peanut varieties still increased significantly, but the degree of increase of the moderately resistant variety AH1 was smaller than that of the highly susceptible variety AH24. In addition, the abundance of <em>A. flavus</em> in the rhizosphere soil of the two varieties significantly decreased after ARC microbial inoculants treatment, with no significant difference between the varieties. These results indicated that ARC microbial inoculants exert differential effects on the nodulation and growth of different resistant peanut varieties and have a better effect on highly susceptible varieties. These results provide a solid theoretical basis for the efficient use of ARC microbial inoculants in the field of peanuts in the future.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 2","pages":"Pages 109-117"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144221653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}