- Yu Xilong;Lin Yu;Dou Renkai;Xu Liangmei;Wu Hongzhi;
This study aimed to investigate the effects of dietary guanidinoacetic acid on growth performance,meat quality,antioxidant activity,and antioxidant-related gene expression in ducks.Total 480 42-day-old female ducks were randomly divided into four groups with six replicates and 20 ducks per replicate and fed the basal diet to the control group.The experimental groups were fed the basal diet with 400,600 and 800 mg·kg~(-1) guanidinoacetic acid,respectively.The trial lasted 48 days.Compared with the control group,(1) the body weight at 90 days and average daily gain were increased (P<0.05),the feed conservation ratio was decreased (P<0.05);(2) the dressing percentage and breast muscle percentage were increased (P<0.05);(3) the total amino acid content,polyunsaturated fatty acids to monounsaturated fatty acids ratio were increased (P<0.05) in breast and thigh muscles;(4) activities of superoxide dismutase,catalase and glutathione peroxidase enzyme were increased (P<0.05) in thigh muscles;(5) the relative expressions of superoxide dismutase 1,glutathione peroxidase 1,and catalase were significantly increased (P<0.05) in the liver.In this study,the optimum dosage of 600 mg·kg~(-1) guanidinoacetic acid improved the growth performance,meat quality,antioxidant activity,and antioxidant-related gene expression in ducks.
2025年01期 v.32;No.98 1-18页 [查看摘要][在线阅读][下载 608K] [下载次数：23 ] |[网刊下载次数：0 ] |[引用频次：0 ] |[阅读次数：31 ] - Guo Jinghua;Wang Shuifeng;
Cadmium (Cd) or excess copper (Cu) has a great impact in terms of toxicity on living organisms as it severely affects crop growth,yield and food security;thus,warranting appropriate measures for the remediation of Cd or Cu polluted soils.Phytoextraction of heavy metal (HM) using tolerant plants along with organic chelators has gained global attention,and this study provided further insights into this issue.Pot experiments were performed to evaluate the effects of different types of chelators[ethylenediamine tetraacetic acid (EDTA),ethylenediamine disuccinic acid (EDDS) and citric acid (CA)]to improve the phytoextraction capacity of Ricinus communis L.for the metals Cd and Cu.Contaminated soil from a copper smelter was used in this study.A rhizon soil sampler was used to determine the metal concentrations in soil pore water.The results indicated that R.communis was an adequate candidate for chelator induced phytoextraction under the experimental conditions and that EDDS would be a good candidate chelator for the phytoextraction of Cu in soils.EDTA addition obviously improved the uptake of Cd and Cu in R.communis;however,it posed the greatest risk because the concentration of HMs in soil pore water was very high even after 40 days.Compared with EDTA and EDDS,CA had few effects on Cd or Cu uptake in R.communis.Linear relationships between the metal uptake in R.communis shoots and the maximum HM concentrations in soil pore water under HM,2.5,5,and 10 mmol·kg~(-1) treatments were typically observed.From the results of this study,it could be concluded that EDDS treatments played a promising role in increasing the uptake of Cd or Cu and reducing its phytotoxicity.EDDS application could be an effective approach for the phytoextraction of Cd or Cu from polluted soils by growing Ricinus communis L.
2025年01期 v.32;No.98 19-26页 [查看摘要][在线阅读][下载 588K] [下载次数：21 ] |[网刊下载次数：0 ] |[引用频次：0 ] |[阅读次数：13 ] - Zheng Xianzhe;Song Ruonan;Cong Hongyue;Zhang Yuhan;Xue Liangliang;
In order to improve the quality of 3D printed raspberry preserves after post-processing,microwave ovens combining infrared and microwave methods were utilized.The effects of infrared heating temperature,infrared heating time,microwave power,microwave heating time on the center temperature,moisture content,the chroma (C~*),the total color difference (ΔE~*),shape fidelity,hardness,and the total anthocyanin content of 3D printed raspberry preserves were analyzed by response surface method (RSM).The results showed that under combining with the two methods,infrared heating improved the fidelity and quality degradation of printed products,while microwave heating enhanced the efficiency of infrared heating.Infrared-microwave combination cooking could maintain relatively stable color appearance and shape of 3D printed raspberry preserves.The AHP–CRITIC hybrid weighting method combined with the response surface test to determine the comprehensive weights of the evaluation indicators optimized the process parameters,and the optimal process parameters were obtained:infrared heating temperature of 190 ℃,infrared heating time of10 min and 30 s,microwave power of 300 W,and microwave heating time of 2 min and 6 s.The 3D printed raspberry cooking methods obtained under the optimal conditions seldom had color variation,porous structure,uniform texture,and high shape fidelity,which retained the characteristics of personalized manufacturing by 3D printing.This study could provide a reference for the post-processing and quality control of 3D cooking methods.
2025年01期 v.32;No.98 27-44页 [查看摘要][在线阅读][下载 1792K] [下载次数：17 ] |[网刊下载次数：0 ] |[引用频次：0 ] |[阅读次数：12 ] - Hu Jingna;He Puming;Cui Weiwei;
Exploring the effective and efficient path of agricultural carbon emission reduction in Henan Province is of great significance to optimizing the strategic layout of China's agricultural emission reduction and carbon sequestration.Accordingly,the agricultural carbon emissions of each county were measured scientifically and then the spatial measurement model was utilized to clarify the spatial and temporal evolution trend and spatial effect mechanism of agricultural carbon emissions based on the county data of Henan Province from 2010 to 2020.The results showed that:(1) in 2020,the total agricultural carbon emissions were 134.7274 million tons,with the high distribution in the southeast and low distribution in the northwest;(2) the spatial dependence of agricultural carbon emissions showed a four-stage trend of fluctuating down-continuing up-plummeting-fluctuating up again,and the spatial heterogeneity was dominated by low-low agglomeration,followed by high-low agglomeration;(3) there was an inverted U curve relationship between the level of agricultural economic development and agricultural carbon emissions.The increase in the level of agricultural mechanization and urbanization rate significantly reduced agricultural carbon emissions.The opposite was true for the financial support for agriculture,the income level of rural residents and the structure of the agricultural industry;(4) in terms of spatial spillover effects,the increase in the level of agricultural development in neighbor counties first increased and then decreased agricultural carbon emissions in Henan Province.The mechanization level and urbanization rate of neighbor counties reduced agricultural carbon emissions in Henan Province,and the opposite was true for the income level of rural residents and the scale utilization of agricultural land.
2025年01期 v.32;No.98 45-58页 [查看摘要][在线阅读][下载 755K] [下载次数：12 ] |[网刊下载次数：0 ] |[引用频次：0 ] |[阅读次数：8 ] - Wang Yanqi;Chu Chu;
As China enters a new stage of agricultural modernization,understanding how rural e-commerce can address the multi-dimensional relative poverty of farmers is of significant research importance.This research utilized data from China Household Finance Survey (CHFS) and China Statistical Yearbook to construct a multi-dimensional relative poverty index system and an evaluation index system for rural e-commerce development.A fixed-effect model was employed to test the direct impact,and an intermediary-effect model was used to analyze the mechanism.The study found that rural e-commerce effectively alleviated multi-dimensional relative poverty among farmers,with varying effects across different dimensions.Notably,improving digital payment levels and non-agricultural employment were effective means by which rural e-commerce mitigated this poverty.However,the impact of rural e-commerce showed regional heterogeneity.Based on these findings,this research offered a series of countermeasures and suggestions.
2025年01期 v.32;No.98 59-75页 [查看摘要][在线阅读][下载 665K] [下载次数：17 ] |[网刊下载次数：0 ] |[引用频次：0 ] |[阅读次数：9 ] - Sun Hongqing;Ma Lin;You Hongzheng;Luo Xin;Liu Houfu;Meng Muhan;Sun Xueliang;Bi Xiangdong;
In recent years,the quality of people's lives has gradually improved,and people pay more attention to the rationality of food nutrition.Green and healthy aquatic products,as representative of high-protein and low-fat foods,are increasingly sought after by people.Triploid rainbow trout (Oncorhynchus mykiss) is rich in multiple unsaturated fatty acids and trace elements,which have rich nutrition and delicate flesh,its market demand is increasing.Triploid rainbow trout aquaculture has gradually become a characteristic economic industry in China.The triploid rainbow trout is favored by farmers because of its fast growth rate,delicious meat and large population.However,the development of triploid rainbow trout aquaculture is also restricted by many problems,such as unreasonable breeding management,high feed cost and low processing efficiency.Based on the research reports of domestic and foreign experts and scholars,this paper summarized the research progress of triploid rainbow trout,analyzed the influence of different farming models,nutritional needs,disease prevention on the triploid rainbow trout industry,and put forward suggestions for the development of triploid rainbow trout industry in order to provide scientific reference for the further development of triploid rainbow trout farming technology in China.
2025年01期 v.32;No.98 76-85页 [查看摘要][在线阅读][下载 603K] [下载次数：10 ] |[网刊下载次数：0 ] |[引用频次：0 ] |[阅读次数：5 ] - Shi Zhuo;Xie Ting;Liu Nengwen;Dong Na;Bi Chongpeng;Li Feng;
Zearalenone (ZEN) is a non-steroidal estrogenic mycotoxin biosynthesized by the polyketide reaction,which has estrogenic effects and triggers toxic effects,such as reproductive toxicity,hepatotoxicity,genotoxicity,and immunotoxicity in organism.Due to its impact on human and animal health and the economic losses engendered by ZEN,detoxification strategies for contaminated foods and feeds to reduce or eliminate the toxic effects of ZEN by chemical,physical and biological methods are crucial.Detoxification by microbial means has broad application prospects,with the advantages of high efficiency,high specificity,mild conditions of action,no harmful metabolites,and safety.It may help to improve the function of intestinal barriers so that the intestinal epithelial barrier is more resistant to mycotoxins,and other pathogenic microorganisms.This article provided an overview of the metabolic pathways and animal toxicity of ZEN in organism,and summarized the effects of the current research status,detoxification mechanisms and in vivo applications of ZEN biodetoxification,in order to provide a reference for the prevention and control of ZEN.
2025年01期 v.32;No.98 86-96页 [查看摘要][在线阅读][下载 647K] [下载次数：7 ] |[网刊下载次数：0 ] |[引用频次：0 ] |[阅读次数：11 ] <正>Aims and Scope Journal of Northeast Agricultural University(English Edition) is a comprehensive academic journal on agricultural sciences sponsored by Northeast Agricultural University and distributed worldwide. It is a peer reviewed journal published quarterly and mainly publishes review and research articles that reflect the latest achievements on crop science, horticulture, plant protection, resource and environment, animal science, veterinary medicine, agricultural engineering and technology, agricultural water conservancy, life science, biotechnology and food science.
2025年01期 v.32;No.98 97页 [查看摘要][在线阅读][下载 329K] [下载次数：6 ] |[网刊下载次数：0 ] |[引用频次：0 ] |[阅读次数：7 ]