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21.
从共享旅游文化、共享食用菌历史文化的角度,讨论了发展食用菌个性化旅游和体验式旅游的思路;结合食用菌绿色、健康和生态的核心体验元素,给出了依托食用菌绿色、生态的品牌优势,打造食用菌旅游产业的具体方法。在此基础上,探讨了重庆食用菌旅游资源的共享经济模式,提出以重庆食用菌美食为龙头,利用多种共享经济新业态来带动重庆食用菌旅游产业的发展。 相似文献
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Shi-Zhi Wang Guang-Xin E Yan Zeng Yan-Guo Han Yong-Fu Huang Ri-Su Na 《Reproduction in domestic animals》2021,56(6):936-941
The aim of this study was to analyse the association between single-nucleotide polymorphisms within INHA and ACVR2B and litter size in Dazu black goats. In total, twenty-two SNPs were genotyped in 190 individuals by SNaPshot and resequencing. The results showed that three SNPs (SNP_1, SNP_12 and SNP_13 in this study) were detected to have significant additive genetic effect on the recorded goat litter size (p < .05). The SNP_1 (NC_030809.1), a non-synonymous substitution of G for T at chr2-g. 28314990 in the exon 2 of INHA gene (NM_001285606.1), resulted in homozygote 2 (HOM2) contributed 0.25 and heterozygote (HET) contributed 0.12 larger litter than homozygote 1 (HOM1). Meanwhile, SNP_12 (Chr22-g. 11721225 A > T) and SNP_13 (Chr22-g. 11721227 A > C) (NC_030829.1) simultaneously mutated at the first and third position of a triplet AAA (lysine, K) in the exon 4 of ACVR2B gene (XM_018066623.1) had estimated genetic effects of HOM1 (0.00) and HOM2 (0.03) larger than HET (−0.12). In conclusion, one SNPs (chr2-g. 28314990 T > G) within the exon 2 of INHA and two SNPs (Chr22-g. 11721225 A > T and Chr22-g. 11721227 A > C) i n the exon 4 of ACVR2B gene were highly recommended as candidate markers of litter size in Dazu black goats. A large-scale association study to assess the impact of these variants on litter size is still necessary. 相似文献
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Dietary Lipid Levels Affect the Growth Performance,Lipid Deposition,and Antioxidative Capacity of Juvenile Scaleless Carp,Gymnocypris przewalskii,on the Qinghai‐Tibetan Plateau 下载免费PDF全文
Qiwei Qin Yanlin Tong Ruman Zhu Guoqian Xu Yuan Shi Jianquan Shi Rui Ma 《Journal of the World Aquaculture Society》2018,49(4):788-797
A 56‐d growth trial was conducted to evaluate the growth performance, lipid deposition, and antioxidative capacity of juvenile scaleless carp, Gymnocypris przewalskii, on Qinghai‐Tibetan Plateau. One‐year‐old juveniles (initial weight: 15.99 ± 0.02 g) were fed practical diets with different lipid levels of 4, 5.5, 7, 8.5, and 10%, respectively. Results showed that the best specific growth rate (SGR), feed conversion rate, and total antioxidative capacity (T‐AOC) in hepatopancreas were observed in fish fed the diet with 7% lipid level. Fish fed with high lipid diets (8.5 and 10%) had significantly higher condition factor and viscerosomatic index as well as lipid in muscle, intestine, mesenteric fat tissue, and whole body. Highest level of hepatopancreas lipase and lipoprotein lipases activities as well as malondialdehyde content and the lowest level of feed intake and T‐AOC content in hepatopancreas and intestine were also observed in fish fed with high lipid diets (8.5 and 10%) (P < 0.05). In conclusion, based on SGR and hepatopancreas T‐AOC content, dietary lipid requirement of juvenile G. przewalskii was estimated to be 7.35 and 7.39%, respectively. 相似文献
25.
“基础化学”理论和实验教学质量的“高与低”在一定程度上直接关乎高职院校与化学相近专业人才培养的“成与败”。以教学改革为切入点,在“基础化学”教材建设和系列微课的制作及应用2个维度上,探讨提升“基础化学”课程教学质量的具体措施。 相似文献
26.
在渔业方面,贯彻落实“一带一路”倡议,实施渔业“走出去,引进来”战略,促进我国水产养殖业和周边国家地区的交流合作,共同推动区域传统渔业向现代渔业转型升级,是现代渔业发展的必然方向。泰国作为“一带一路”之东盟国家,从泰国的渔业资源现状、渔业产业发展、渔业现阶段存在的优势和不足以及中泰渔业协作发展探索等多个方面进行阐述,通过研究泰国渔业现状及探索中泰渔业协作发展之路,提出技术支撑、资源引进、取长补短、共同进步等相对应的策略与建议,为中国-东盟国家在基于“一带一路”倡议的渔业层面战略发展提供样本。 相似文献
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当前养猪业进入困难时期,企业运营成本高企。炎热的夏季,种猪繁殖问题较为突出,再加上非洲猪瘟直接或者间接的原因,行业内母猪整体繁殖水平低下。团队近期对53家不同区域、不同规模、不同生产模式的养猪企业进行了调研,发现公猪问题、后备猪问题和哺乳期管理是当前猪场最为关心的3个问题。 相似文献
29.
Bing Liu Muhamed Jamal Hosen Talukder Eeva Terhonen Maija Lampela Harry Vasander Hui Sun Fred Asiegbu 《Soil Use and Management》2020,36(1):123-138
The microbial community structure and function under forest in tropical peatlands are poorly understood. In this study, we investigated the microbial community structure and diversity in natural peat swamp forest soil, disturbed peat soil and mineral soil in Central Kalimantan, Indonesia, using 454 pyrosequencing. The results showed that the natural peat soil had the greatest fungal species richness (Chao1), which was significantly (p < .05) larger than that in the other two soils. Community structure of both fungi and bacteria in natural peat soil differed significantly from that in the disturbed peat soil (p = .039 and p = .045, respectively). Ascomycota (40.5%) was the most abundant phylum across the three soils followed by Basidiomycota (18.8%), Zygomycota (<0.1%) and Glomeromycota (<0.1%). The linear discriminant analysis with effect size (LEfSe) showed that Ascomycota (p < .05) and genus Gliocephalotrichum (p < .05) dominated in natural peat soil. Functionally, pathotrophs were more abundant in disturbed peat soil (p < .05). Proteobacteria (43.8%) were the most abundant phylum followed by Acidobacteria (32.6%), Actinobacteria (9.8%), Planctomycetes (1.7%). Methylocystis, Telmatospirillum, Syntrophobacter, Sorangium and Opitutus were the more abundant genera in disturbed peat soil, whereas Nevskia and Schlesneria were more abundant in mineral soil and natural peat soil, respectively. The natural peat forest soil supported a more diverse microbiology; however, the land use of such a soil can change its microbial community structure. The results provide evidence that the disturbance of tropical peat land could lead to the introduction and spread of a large number of fungal diseases 相似文献
30.
Wen-wen LIU Min XIN Meng-ji CAO Meng QIN Hui LIU Shou-qi ZHAO Xi-feng WANG 《农业科学学报》2018,17(10):2281-2291
To identify the possible quarantine viruses in seven common sunflower varieties imported from the United States of America and the Netherlands, we tested total RNAs extracted from the leaf tissues using next-generation sequencing of small RNAs. After analysis of small RNA sequencing data, no any quarantine virus was found, but a double-stranded RNA(dsRNA) molecule showing typical genomic features of endornavirus was detected in two varieties, X3939 and SH1108. Full-length sequence and phylogenetic analysis showed that it is a novel endornavirus, temporarily named as Helianthus annuus alphaendornavirus(HaEV). Its full genome corresponds to a 14 662-bp dsRNA segment, including a 21-nt 5′ untranslated region(UTR), 3' UTR ending with the unique sequence CCCCCCCC and lacking a poly(A) tail. An open reading frame(ORF) that encodes a deduced 4 867 amino acids(aa) polyprotein with three domains: RdRP, Hel and UGT(UDP-glycosyltransferase). HaEV mainly distributed in the cytoplasm but less in the nucleus of leaf cells by fluorescence in situ hybridization(FISH) experiment. This virus has a high seed infection rate in the five varieties, X3907, X3939, A231, SH1108 and SR1320. To our knowledge, this is the first report about the virus of the family Endornaviridae in the common sunflower. 相似文献