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Role of functional fatty acids in modulation of reproductive potential in livestock

Journal of Animal Science and Biotechnology 2023年第2期14卷 423-441页

作者： Xiangzhou Zeng Siyu Li Lu Liu Shuang Cai Qianhong Ye Bangxin Xue Xinyu Wang Shihai Zhang Fang Chen Chuanjiang Cai Fenglai Wang Xiangfang Zeng State Key Laboratory of Animal Nutrition Ministry of Agriculture Feed Industry CenterChina Agricultural University100193 BeijingP.R.China Beijing Key Laboratory of Bio feed Additives 100193 BeijingP.R.China State Key Laboratory of Agricultural Microbiology College of Animal Sciences and TechnologyHuazhong Agricultural University430070 WuhanHubeiChina Guangdong Provincial Key Laboratory of Animal Nutrition Control College of Animal ScienceSouth China Agricultural University510642 GuangzhouChina College of Animal Science and Technology Northwest A&F University712100 YanglingShaanxiChina

fatty acids are not only widely known as energy sources,but also play important roles in many metabolic pathways.The significance of fatty acids in modulating the reproductive potential of livestock has received greater recognition in recent years.Functional fatty acids and their metabolites improve follicular development,oocyte maturation and embryo development,as well as endometrial receptivity and placental vascular development,through enhancing energy supply and precursors for the synthesis of their productive hormones,such as steroid hormones and prosta-glandins.However,many studies are focused on the impacts of individual functional fatty acids in the reproductive cycle,lacking studies involved in deeper mechanisms and optimal fatty acid requirements for specific physiological stages.Therefore,an overall consideration of the combination and synergy of functional fatty acids and the establish-ment of optimal fatty acid requirement for specific stages is needed to improve reproductive potential in livestock.

关键词： Embryo development fatty acids Lactation Oocyte Placental Pregnancy Reproduction

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Profiles of muscular amino acids,fatty acids,and metabolites in Shaziling pigs of different ages and relation to meat quality

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Science China(Life Sciences) 2023年第6期66卷 1323-1339页

作者： Yehui Duan Changbing Zheng Jie Zheng Lu Ma Xinran Ma Yinzhao Zhong Xichen Zhao Fengna Li Qiuping Guo Yulong Yin CAS Key Laboratory of Agro-ecological Processes in Subtropical Region Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic ProcessNational Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry ProductionInstitute of Subtropical AgricultureChinese Academy of SciencesChangsha410125China College of Advanced Agricultural Sciences University of Chinese Academy of SciencesBeijing100049China Shanghai Key Laboratory of Regulatory Biology Institute of Biomedical Sciences and School of Life SciencesEast China Normal UniversityShanghai200241China

Pork meat is closely related to physicochemical alterations during growth and development,resulting in differences in nutritional value and meat flavor.This study aimed to evaluate the composition of amino acids,fatty acids,and metabolic profiles in the longissimus thoracis muscle(LM)of Shaziling pigs aged 30,90,150,210,and 300 days.The results showed that the predominant fatty acids identified in the LM of Shaziling pigs were C16:0,C16:1,C18:0,C18:1n9c,and C18:2n6c.An opposite correlation was observed for C18:2n6c and n6/n3 polyunsaturated fatty acids(P<0.05).Alanine,aspartate,glutamate,Dglutamine,and D-glutamate metabolism were the main metabolic pathways for the Shaziling pig meat flavor(P<0.05).Moreover,the correlation coefficients revealed that the contents of anserine,C16:0,C16:1,and C18:1n9c were positively correlated with intramuscular fat and/or p H24hand were negatively correlated with the values of L^(*)(lightness)and b^(*)(yellowness)(P<0.05).In conclusion,age greatly affected the meat quality of Shaziling pigs,and the contents of muscular anserine,C16:0,C16:1,and C18:1n9c might be promising indicators for better meat quality.

关键词： Shaziling pigs meat quality amino acids fatty acids metabolites

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Effects of dietary oil sources and fat extraction methods on apparent and standardized ileal digestibility of fat and fatty acids in growing pigs

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Journal of Animal Science and Biotechnology 2023年第2期14卷 760-770页

作者： Lu Wang Wenjun Gao Junyan Zhou Huangwei Shi Tenghao Wang Changhua Lai State Key Laboratory of Animal Nutrition Ministry of Agriculture Feed Industry CentreChina Agricultural UniversityHaidian DistrictNo.2 Yuanmingyuan West RoadBeijing 100193P.R.China Beijing Bio-Feed Additives Key Laboratory China Agricultural UniversityBeijing 100193P.R.China Zhejiang Qinglian Food Co. Ltd.Jiaxing 314399P.R.China.

Background:There is a lack of data for the standardized ileal digestibility(SID) of fat and fatty acids in national feed databases.In addition,it is important to specify the procedures used for fat analyses.Therefore,an experiment was conducted to 1) determine the apparent ileal digestibility(AID) and SID of fat and fatty acids in ten different oil sources for growing pigs and to develop prediction equations for SID of fat based on fatty acid composition;and 2) compare the effect of the fat extraction methods on the calculated values for endogenous loss and digestibility of fat.Methods:Twenty-two barrows(initial body weight:32.1 ± 2.3 kg) were surgically fitted with a T-cannula in the distal ileum,and allotted to 1 of 11 experimental diets in a 4-period Youden Square design.A fat-free diet was formulated using cornstarch,soy protein isolate and sucrose.Ten oil-added diets were formulated by adding 6% of dietary oil sources to the fat-free diet at the expense of cornstarch.All diets contained 26% sugar beet pulp and 0.40% chromic oxide.Results:The endogenous loss of ether extract(EE) was lower than that of acid-hydrolyzed fat(AEE;P fatty acids across the dietary oil sources(P fatty acids(U/S) had a positive correlation with SID of fat(P fatty acids(LSFA) were significant negatively correlated with SID of fat(P < 0.01).The best-fit equation to predict SID of fat was SID AEE = 102.75-0.15 × LSFA-0.74 × C18:0-0.03 × C18:1(Adjusted coefficient of determination = 0.88,P < 0.01).Conclusions:When calculating the SID

关键词： Fat extraction methods fatty acids Growing pigs Ileal digestibility Oil sources

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Quantitative Trait Loci(QTL)Mapping and Marker Analysis of fatty acids in Peanut

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Phyton-International Journal of Experimental Botany 2023年第9期92卷 2577-2589页

作者： Xiao Han Songnan Yang Xueying Li Qiulin Wu Yongyi Xing Jun Zhang Fenglou Ling College of Agronomy Jilin Agricultural UniversityChangchun130118China

Peanut,with high oil content,has been a major oil and food crop globally.The compositions of the fatty acids are the common factors in determining the oil quality.In the present study,an F2 segregated population with 140 individuals derived from the cross of Weihua8(a cultivar)and 12L49(a line with high oleic acid concentration)was used to construct a genetic map and conduct QTL mapping analysis.A total of 103 polymorphic SSR primers were utilized for genotyping the RILs and finally generating the SSR loci.Within the 103 SSR loci,a genetic linkage map,covering a total length of 3592.35 cM of the whole peanut genome,was constructed.Based on the genetic map,sixteen QTLs located on nine linkage groups related to peanut fatty acids were finally identified.Among them,four QTLs were detected associated with various traits simultaneously,which showed genetic stability in relation to fatty acids of peanut.Except for the QTLs for oleic acid,linoleic acid,and linolenic acid,three novel QTLs for arachidic acid and behenic acid were also detected.These QTLs might be helpful for further fine mapping analysis and marker-assisted selection of fatty acids in peanut.

关键词： Peanut fatty acids simple sequence repeat genetic linkage map QTL mapping

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fatty acids and algal lipids as precursors of chlorination by-products

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Journal of Environmental Sciences 2012年第11期24卷 1942-1946页

作者： Yan Liang Yuen Shan Lui Huachang Hong Croucher Institute for Environmental Sciences(CIES)and Department of Biology Hong Kong Baptist UniversityKowloon TongHong KongChina College of Geography and Environmental Sciences Zhejiang Normal UniversityJinhua 321004China Centre for Food Safety and Environmental Technology Guangzhou Institute of Advanced TechnologyChinese Academy of SciencesGuangzhou 511458China

Six common algal fatty acids （FAs） with different numbers of double bonds, lipophilic fractions and proteins extracted from the diatom Navicula pelliculosa and algal ceils were chlorinated to evaluate their potential in generating disinfection by-products （DBPs）. The result showed that the more double bonds in the FAs, the higher the amounts of chloroform and dichloroacetic acid （DCAA） produced, but such a pattern was not observed for trichloroacetic acid （TCAA）. Based on the previously reported composition of fatty acids in algal lipids, the DBP generation potentials of algal lipids were calculated. These predicted values were much lower than those measured in the chlorinated algal lipophilic fraction, suggesting unknown lipophilic fraction（s） served as potent DBPs precursors. Another calculation attempted to predict DBP production in algal cells based on algal lipid and protein composition, given quantified measured DBP production per unit algal lipid and proteins. The analysis showed that the observed DBP production was similar to that predicted （〈 35% difference）, suggesting that algal biochemical compositions may serve as a bioindicator for preliminary estimation of chloroform, DCAA and TCAA formation upon chlorinating algae.

关键词： algal lipid algal-derived organic materials chlorination by-products fatty acids

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Dietary enrichment of edible insects with omega 3 fatty acids

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Insect Science 2020年第3期27卷 500-509页

作者： Dennis G.A.B.Oonincx Sophie Laurent Margot E.Veenenbos Joop J.A.van Loon Department of Animal Sciences Animal Nutrition GroupWageningen UniversityWageningenthe Netherlands Laboratory of Entomology Department of Plant SciencesWageningen UniversityWageningenthe Netherlands Sophie Laurent ON IRISFood Process EngineeringUMR CNRS 6144 GEPEANantes Cedex 3France

Edible insects are advocated as sustainable and healthy food and feed.However,commercially produced insects are often low in n‐3 fatty acids and have suboptimal n‐6/n‐3 ratios.A certain amount and proportion of these FAs is required to optimize human health.Flaxseed oil consists primarily(57%)out of alpha‐linolenic acid.An experiment was conducted to quantify the effect of flaxseed oil provision on fatty acid composition and to determine the quantity needed to attain a beneficial n‐6/n‐3 ratio.Three species were used in the experiment:house crickets(Acheta domesticus[L.]),lesser mealworms(Alphitobius diaperinus[Pfanzer])and black soldier flies(Hermetia illucens[L.]).These were provided with either a control diet or a diet enriched with 1%,2%,or 4%flaxseed oil during their larval/nymphal stage.fatty acid profiles of diets and insects were determined via GC‐MS.The three species had distinct fatty acid profiles on all four diets,but responded similarly to flaxseed oil addition.For each percent added to the diet,the alpha‐linolenic acid content of the insects increased by 2.3%–2.7%.Four percent addition increased the n‐3 fatty acid content 10–20 fold in the three species and thereby strongly decreased n‐6/n‐3 ratios from 18–36 to 0.8–2.4.A ratio below 5 is considered optimal for human health and was achieved by 2%flaxseed oil inclusion for house crickets and lesser mealworms,and at 1%inclusion for black soldier flies.Adding a source of n‐3 fatty acids to insect diets can thus improve the nutritional quality of insects.

关键词： Acheta domesticus Alphitobius diaperinus diet fatty acids Hermetia illucens

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Dietary fatty acids in gut health: Absorption, metabolism and function

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Animal Nutrition 2021年第4期7卷 1337-1344页

作者： E.Xu Chao Chen Jie Fu Luoyi Zhu Junlan Shu Mingliang Jin Yizhen Wang Xin Zong Key laboratory of animal genetics breeding and reproduction in the plateau mountainous regionministry of educationcollege of aniaml scienceguizhou university550025 guiyangchina Key laboratory of molecular animal nutrition ministry of educationcollege of animal scienceszhejiang university310058 hangzhouchina Key laboratory of animal nutrition and feed science in eastern china ministry of agriculturecollege of animal scienceszhejiang university310058 hangzhouchina

In biological responses,fatty acids(FA)are absorbed and metabolized in the form of substrates for energy production.The molecular structures(number of double bonds and chain length)and composition of dietary FA impact digestion,absorption and metabolism,and the biological roles of FA.Recently,increasing evidence indicates that FA are essentially utilized as an energy source and are signaling molecules that exert physiological activity of gut microbiota and immune responses.In addition,FA could serve as natural ligands for orphan G protein-coupled receptors(GPCR),also called free fatty acid receptors(FFAR),which intertwine metabolic and immune systems via multiple mechanisms.The present review explores the recent findings on FA absorption and its impact on gut health,particularly addressing the mechanism by which dietary FA potentially influences intestinal microbiota and epithelial functions.Also,this work attempts to uncover research ideas for devising future strategies for manipulating the composition of dietary FA to regulate gut health and support a normal immune system for metabolic and immune disorders.

关键词： fatty acids Gut Absorption Metabolism G protein coupled receptor

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Visible-Light Photoredox-Catalyzed Hydrodecarboxylation and Deuterodecarboxylation of fatty acids

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Chinese Journal of Chemistry 2022年第16期40卷 1903-1908页

作者： Yuan-Li Sun Fang-Fang Tan Rong-Gui Hu Chun-Hong Hu Yang Li Center for Organic Chemistry Frontier Institute of Science and TechnologyXi'an Jiaotong UniversityXi'anShaanxi710054 China

We develop an efficient visible-light photoreodox-catalyzed hydrodecarboxylation and deuterodecarboxylation of fatty acids for alkanes and deuterium alkanes.The key to the efficient transformation should attribute to the co-catalysis of the suitable methoxy substituted acridine photocatalyst(Mes-1,3,6,8-tetramethoxy-Acr-3″,5″-dimethoxy-Ph)and the hydrogen atom transfer catalyst 4′,4′-dimethyl diphenyldisulfane,possibly via facilitating of quenching the active alkyl radicals to overcome the competitive homocoupling products,olefins via the disproportionation,cracking products via the C—C bondβ-scission.

关键词： Photocatalysis fatty acids Hydrodecarboxylation Deuterodecarboxylation Alkanes

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Metabolic disorders of fatty acids and fatty acid amides associated with human gastric cancer morbidity

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Chinese Medical Journal 2012年第5期125卷 757-763页

作者： SONG Hu PENG Jun-sheng YAO Dong-sheng LIU Da-ling YANG Zu-li DU Yan-ping XIANG Jun Department of Gastrointestinal Surgery Xuzhou Central Hospital（Affiliated Hospital of Medical College of Southeast University）Xuzhou Jiangsu 221009 China Department of Gastrointestinal Surge% Sixth Affiliated Hospital（Gaslrointestinal ＆ Anal Hospital） Sun Yat-sen University GuangzhouGuangdong 510655 China National Engineering Research Center of Genetic Medicine Ji NanUniversity Guangzhou Guangdong 510632 China

Background Gastric cancer （GC） is one of the most common types of cancer in the world. A change in the metabolism of lipids in tumor cells could lead to the pathogenesis of cancer. In this study, we investigated fat... 详细信息

关键词： gastric cancer fatty acids amides metabolic disorders

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Understanding changes in volatile compounds and fatty acids of Jincheng orange peel oil at different growth stages using GC-MS

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Journal of Integrative Agriculture 2023年第7期22卷 2282-2294页

作者： XIE Jiao CAO Qi WANG Wen-jun ZHANG Hong-yan DENG Bing The Key Laboratory of Environmental Pollution Monitoring and Disease Control Ministry of Education/Guizhou Provincial Engineering Research Center of Ecological Food InnovationSchool of Public HealthGuizhou Medical UniversityGuiyang 550025P.R.China College of Food Science/Food Storage and Logistics Research Center Southwest UniversityChongqing 400715P.R.China

Jincheng orange(Citrus sinensis Osbeck)is widely grown in Chongqing,China,and is commonly consumed because of its characteristic aroma contributed by the presence of diverse volatile compounds.The changes in aroma during the development and maturation of fruit are indicators for ripening and harvest time.However,the influence of growth stages on the volatile compounds in Jincheng orange remains unclear.In addition,volatiles originate from fatty acids,most of which are the precursors of volatile substances.On this basis,gas chromatography-mass spectrometry(GC-MS)was performed to elaborate the changes in volatile constituents and fatty acids as precursors.This study tested proximately 60 volatiles and 8 fatty acids at 9 growth and development stages(AF1-AF9).Of those compounds,more than 92.00%of total volatiles and 87.50%of fatty acids were terpenoid and saturated fatty acids,respectively.As shown in the PCA plot,the AF5,AF6,and AF9 stages were confirmed as completely segregated and appeared different.In addition,most of the volatiles and fatty acids first increased at the beginning of the development stage,then decreased from the AF6 development stage,and finally increased at the AF9 maturity stage.Moreover,the highest contents of terpenoid,alcohols,aldehydes,ketones,and saturated fatty acids in Jincheng orange peel oil were d-limonene,linalool,octanal,cyclohexanone,and stearic acid during development stages,respectively.Our results found that the growth stages significantly affected the volatile constituents and precursors in Jincheng orange peel oil.

关键词： Jincheng orange volatile compounds fatty acids growth stages

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