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Emerging tropane alkaloids:Global development and potential health threats

Food Quality and Safety 2024年第1期8卷 12-26页

作者： Zile Wang Shiqi Chen Pimiao Zheng Zhenhui Ren Huixia Zhang Jing Zhang Bing Shao Congming Wu Haiyang Jiang Department of veterinary Pharmacology and Toxicology Beijing Key Laboratory of Detection Technology for Animal-Derived Food SafetyBeijing Laboratory for Food Quality and SafetyNational Key Laboratory of Veterinary Public Health and SafetyCollege of Veterinary MedicineChina Agricultural UniversityBeijingChina. College of veterinary Medicine Shandong Agricultural UniversityTaianChina. tianjin Key Laboratory of Agricultural animal Breeding and Healthy husbandry College of Animal Science and Veterinary MedicineTianjin Agricultural UniversityTianjinChina Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning Beijing Center for Disease Prevention and ControlBeijingChina.

Tropane alkaloids(TAs)are a kind of plant secondary metabolite that mainly originate from *** have potent anticholinergic activity,and are well-known anticholinergic drugs,but have also been reported as plant *** studies have been conducted on TAs,but no scientometric research has been *** study aimed to expound the knowledge network and development of the feld of TAs and predict the emerging development topics based on *** particular,this research combined VOSviewer and CiteSpace for visualization and covered 1,298 related scientifc publications(1953–2022).The research on TAs is rapidly developing,with the participation of 86 countries,1,129 research institutions,and 4,087 ***,the University of Geneva,and *** are the most productive country,institution,and researcher,***,the main research topics on TAs include biosynthesis,in vitro synthesis,chemical synthesis,and determination *** 2018,the monitoring of TAs in food related to human health has shown citation burst characteristics,which is considered an emerging development trend in the *** fndings of this study will enable researchers to quickly tap into the knowledge background/structure of TAs from massive data to provide a reference for further research.

关键词： Tropane alkaloids bibliometrics biosynthesis in vitro synthesis chemical synthesis determination contamination food safety

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Effect of Moringa oleifera on semen quality profiles in endangered Teressa goat under tropical humid island ecosystem

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Asian pacific Journal of Reproduction 2024年第2期13卷 89-96页

作者： P.Perumal Jai Sunder A.K.De A.K.Nahak D.K.Chaurasia T.C.Balamurugan D.Bhattacharya ICAR-Central Island Agricultural research institute Port Blair-744105Andaman and Nicobar IslandsIndia OUAT-College of veterinary Science and animal husbandry Bhubaneswar-751003OdishaIndia TANUVAS-veterinary College and research institute Salem-636112Tamil NaduIndia

Objective:To investigate the effect of Moringa oleifera leaf extract on semen quality parameters in Teressa goat ***:A total of 25 semen samples from six bucks were selected for the *** of 150×10^(6) were incubated in 0,300,500 and 700μg of leaf extract as groupⅠ,Ⅱ,Ⅲ and Ⅳ,*** stored semen samples were analysed for motility,viability,total sperm abnormalities,plasma membrane,acrosomal and nuclear integrities,seminal plasma intracellular enzymes[aspartate aminotransferase(AST),alanine aminotransferase(ALT)and lactate dehydrogenase(LDH)]and total antioxidant capacity(TAC)and spermatozoa malondialdehyde(MDA)and cholesterol efflux in comparison with the control group(groupⅠ)for up to 72 ***:Moringa oleifera leaf extract(500μg/150×10^(6) spermatozoa)-treated semen had significantly higher motility,viability,plasma membrane,acrosomal and nuclear integrities,and TAC(P<0.05),and had significantly lower total sperm abnormalities,AST,ALT,LDH,MDA production and cholesterol efflux compared to those in other Moringa oleifera leaf extract treated(300 or 700μg/150×10^(6) spermatozoa)and control groups at different hours of liquid storage(P<0.05).Semen quality parameters and TAC showed an increasing trend and total sperm abnormalities,MDA production,leakage of intra-cellular enzymes and cholesterol efflux showed a decreasing trend from group Ⅰto group Ⅲand then an opposite trend from group Ⅲ to group Ⅳ at different hours of liquid ***:Moringa oleifera leaf extract 500μg/150×10^(6) spermatozoa can be used for liquid semen preservation in Teressa goat at Andaman and Nicobar Islands.

关键词： Moringa oleifera Semen Teressa goat Andaman and Nicobar Islands

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Mulberry leaf supplementation inhibits skatole deposition by regulating gut microbiota and upregulating liver cytochrome P4501A1 expression in finishing pigs

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animal Nutrition 2024年第1期16卷 34-44页

作者： Yuqing Sun Xiaoming Men Tianbao Lin Bo Deng Shi Zhong Jinxi Huo Kaipeng Qin Zhiqiang Lv Ziwei Xu Yougui Li institute of Sericulture and Tea Zhejiang Academy of Agricultural Sciences298 Deshengzhong RoadShangchengHangzhou 310021China institute of animal husbandry and veterinary Science Zhejiang Academy of Agricultural Sciences298 Deshengzhong RoadShangchengHangzhou 310021China

Skatole,a strong fecal odor substance,is generated through microbial degradation of tryptophan in the animal *** easily accumulates in adipose tissue and affects meat *** this study,the effect of mulberry leaf supplementation on skatole in finishing pigs was *** a 35-day trial,20 finishing pigs(barrows and gilts)were fed with a basal diet or basal diet with 6%mulberry *** performance of the pigs(n=10)was automatically recorded by a performance-testing feeder system and 8 pigs in each treatment were slaughtered and sampled for the remaining *** and short-chain fatty acids were detected using HPLC and gas chromatography,*** microbiota were analyzed using 16S r RNA gene *** metabolomics analysis of feces and serum was performed with UHPLC-MS/*** major cytochrome P450(CYP)enzymes that catalyze skatole degradation in the liver were tested by using RT-PCR and Western *** of major bioactive compounds in mulberry leaves on the CYP genes were verified in the hepatic cell line Hep G2 in an in vitro test(n=3).In finishing pigs,mulberry leaf supplementation had no significant effect on the average daily gain,average daily feed intake,and feed conversion ratio(P>0.05),but reduced skatole levels in feces,serum,and backfat(P<0.05),and increased acetic acid levels in feces(P=0.027).Mulberry leaf supplementation decreased the relative abundance of the skatole-producing bacteria Megasphaera and Olsenella(P<0.05).Indole-3acetic acid,the intermediate that is essential for skatole production,was significantly reduced in feces by mulberry leaf supplementation(P<0.05)and was positively correlated with skatole content in feces(P=0.004).In pigs treated with mulberry leaves,liver CYP1A1 expression was increased(P<0.05)and was negatively correlated with skatole content in backfat(P=0.045).The in vitro test demonstrated that mulberry leaf polyphenols and polysaccharides could directly stimulate CYP1A1 expression in

关键词： Pig Skatole Mulberry leaf Microbiota Cytochrome P450

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Rumen microbiota succession throughout the perinatal period and its association with postpartum production traits in dairy cows:A review

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animal Nutrition 2024年第3期18卷 17-26页

作者： Xiaowei Zhao Yangdong Zhang Ashikur Rahman Meiqing Chen Ning Li Tao Wu Yunxia Qi Nan Zheng Shengguo Zhao Jiaqi Wang State Key Laboratory of animal Nutrition and Feeding Institute of Animal SciencesChinese Academy of Agricultural SciencesBeijing 100193China Anhui Key Laboratory of Livestock and Poultry Product Safety Engineering Institute of Animal Husbandry and Veterinary MedicineAnhui Academy of Agricultural SciencesHefei 230031China Xinjiang Agricultural University Urumqi 830052China

The transition period for dairy cows usually refers to the 3 weeks pre-calving to the 3 weeks *** this period,dairy cows undergo metabolic and physiological adaptations because of their susceptibility to metabolic and infectious *** feeding management under these circumstances may adversely affect the health and subsequent production performance of the *** to long-term adaptation and evolution,the rumen has become a unique ecosystem inhabited by a complex microbial community closely associated with its natural *** components are metabolized by the rumen microbiota,and volatile fatty acids and microbial protein products can be used as precursor substances for synthesizing meat and milk *** successful transition of perinatal dairy cows includes changes in diet,physiology,and the rumen *** microbial profiles have been confirmed to be heritable and repairable;however,adverse circumstances affect rumen microbial composition,host digestion and metabolism,as well as postpartum production traits of dairy cows for a certain *** evidence indicates a close relationship between the rumen microbiota and animal ***,changes in rumen microbes during the transition period and the intrinsic links between the microbiota and host postpartum phenotypic traits need to be better understood to optimize production performance in ruminants.

关键词： Dairy cow Perinatal period Rumen microbiota Production trait

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Dynamic changes of rumen microbiota and serum metabolome revealed increases in meat quality and growth performances of sheep fed bio‑fermented rice straw

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Journal of animal Science and Biotechnology 2024年第3期15卷 1207-1226页

作者： Yin Yin Kyawt Min Aung Yao Xu Zhanying Sun Yaqi Zhou Weiyun Zhu Varijakshapanicker Padmakumar Zhankun Tan Yanfen Cheng Laboratory of Gastrointestinal Microbiology National Center for International Research on Animal Gut NutritionNanjing Agricultural UniversityNanjing 210095China Department of animal Nutrition University of Veterinary ScienceNay Pyi Taw 15013Myanmar International Livestock research institute Nairobi 00100Kenya College of animal Science Tibet Academy of Agricultural and Animal Husbandry SciencesLhasa 850000China State Key Laboratory of Grassland Agro‑Ecosystems Center for Grassland MicrobiomeCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhou 730000China

Background Providing high-quality roughage is crucial for improvement of ruminant production because it is an essential component of their *** previous study showed that feeding bio-fermented rice straw(BF)improved the feed intake and weight gain of ***,it remains unclear why feeding BF to sheep increased their feed intake and weight ***,the purposes of this research were to investigate how the rumen micro-biota and serum metabolome are dynamically changing after feeding BF,as well as how their changes influence the feed intake,digestibility,nutrient transport,meat quality and growth performances of *** growing Hu sheep were allocated into 3 groups:alfalfa hay fed group(AH:positive control),rice straw fed group(RS:negative control)and BF fed group(BF:treatment).Samples of rumen content,blood,rumen epithelium,muscle,feed offered and refusals were collected for the subsequent *** Feeding BF changed the microbial community and rumen fermentation,particularly increasing(P<0.05)relative abundance of Prevotella and propionate production,and decreasing(P<0.05)enteric methane *** histomorphology(height,width,area and thickness)of rumen papillae and gene expression for carbohydrate trans-port(MCT1),tight junction(claudin-1,claudin-4),and cell proliferation(CDK4,Cyclin A2,Cyclin E1)were improved(P<0.05)in sheep fed ***,serum metabolome was also dynamically changed,which led to up-regulating(P<0.05)the primary bile acid biosynthesis and biosynthesis of unsaturated fatty acid in sheep fed *** a result,the higher(P<0.05)feed intake,digestibility,growth rate,feed efficiency,meat quality and mono-unsaturated fatty acid concentration in muscle,and the lower(P<0.05)feed cost per kg of live weight were achieved by feeding *** Feeding BF improved the growth performances and meat quality of sheep and reduced their feed ***,bio-fermentation of rice straw could be an innovative way for improving rum

关键词： Bio-fermentation Growth rate Meat quality Metabolome Microbiota Rice straw

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Marine red yeast supplementation improves laying performance by regulating small intestinal homeostasis in aging chickens

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animal Nutrition 2024年第3期18卷 177-190页

作者： Yudian Zhao Sujin Si Yangguang Ren Xing Wu Zihao Zhang Yixiang Tian Jing Li Yijie Li Meng Hou Xueyang Yao Zhaoheng Xu Ruirui Jiang Xiangtao Kang Yujie Gong Qiang Li Yadong Tian College of animal Science and Technology Henan Agricultural UniversityZhengzhou 450046China Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources Zhengzhou 450046China Henan College of animal husbandry and Economics Zhengzhou 450046China College of animal Science and veterinary Medicine Henan Institute of Science and TechnologyXinxiang 453003China AB Vista Marlborough SN84ANUK

Recent studies have shown that age-related aging evolution is accompanied by imbalances in intestinal *** red yeast(MRY)is a functional probiotic that has been shown to have antioxidant,immune and other ***,we chose 900 healthy Hy-Line Brown hens at 433 d old as the research subjects and evaluated the correlation between intestinal health,laying performance,and egg quality in aged hens through the supplementation of *** laying hens were assigned into 5 groups and received diet supplementation with 0%,0.5%,1.0%,1.5%,and 2%MRY for 12 *** results showed that MRY supplementation increased egg production rate,average egg weight,and egg quality,and decreased feed conversion ratio and daily feed intake(P<0.05).The MRY supplement improved antioxidant indicators such as superoxide dismutase(SOD),catalase(CAT),glutathione peroxidase(GSH-Px),stimulated villus height,and increased the villus height to crypt depth ratio(V/C ratio)in the intestine(P<0.05).It also regulated the expression of intestinal inflammatory factors(transforming growth factor-β[TGF-β],interleukin[IL]-1β,IL-8,tumor necrosis factor-α[TNF-α])while increasing serum immunoglobulin G(IgG)levels(P<0.05).Furthermore,MRY supplementation upregulated the mRNA expression of tight junction proteins(occludin and zonula occludens-1[ZO-1]),anti-apoptotic gene(Bcl-2),and autophagy-related proteins(beclin-1 and light chain 3I[LC3I])in the intestine(P<0.05).The MRY supplement also led to an increase in the concentration of short-chain fatty acids in the cecum,and the relative abundance of the phylum Bacteroidetes,and genera Bacteroides and Rikenellaceae_RC9_gut_*** LEfSe analysis revealed an enrichment of Sutterella and Akkermansia *** conclusion,the results of this experiment indicated that the additional supplementation of MRY can improve the production performance of laying hens and may contribute to the restoration and balance of intestinal homeostasis,which sup

关键词： Marine red yeast Laying hen Senescence Intestinal homeostasis

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Phytogenic feed additives as natural antibiotic alternatives in animal health and production: A review of the literature of the last decade

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animal Nutrition 2024年第2期17卷 244-264页

作者： Jing Wang Lufang Deng Meixia Chen Yuyan Che Lu Li Longlong Zhu Guoshun Chen Tao Feng institute of animal husbandry and veterinary Medicine Beijing Academy of Agriculture and Forestry Sciences Sino-US Joint Laboratory of animal Science Beijing Academy of Agriculture and Forestry Sciences Feed Branch of Beijing Sanyuan Breeding Technology Co. Ltd. College of animal Science and Technology Gansu Agricultural University College of Life Science and Food Engineering Hebei University of Engineering College of animal Science and Technology Henan University of Science and Technology

The use of antibiotics in animal production raises great public safety concerns; therefore, there is an urgent need for the development of substitutes for antibiotics. In recent decades, plant-derived feed additives have been widely investigated as antibiotic alternatives for use in animal health and production because they exert multiple biological functions and are less likely to induce resistance *** review summarizes the research history and classification of phytogenic feed additives and their main functions, potential modes of action, influencing factors, and potential negative effects. Further, we highlight the challenges in developing sustainable, safe, and affordable plant-derived antibiotic alternatives for use in livestock production.

关键词： Phytogenic feed additives Antibiotic alternatives Livestock animals Health Production

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Pectin Oligosaccharides Glycosylation Modification Reduced the Sensitization of Shrimp Tropomyosin by Regulating Cytokines Expression and Th1/Th2 Immune Balance

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Food Science and Human Wellness 2024年

作者： Mengya Zhao Chunyu Wu Jing Liu Xinian Li Zhenpeng Gao Xin Yang Di Liu Fangyu Long College of Food Science and Engineering， Northwest A&F University institute of animal husbandry and veterinary Medicine， Guizhou Academy of Agricultural Sciences College of animal Science and Technology， Northwest A&F University

Tropomyosin (TM) is the predominant allergenic protein in shrimp， which has induced IgE-mediated food allergy reactions. In this study， Lit v 1 was purified from Penaeus vannamei muscles， which were glycosylated by pectic oligosaccharides. The results showed that Di-Galacturonic acid (DGA) and galacturonic acid (GA) induced the unfolding of the primary protein structure of TM， and changed alpha-helical structure， and IgE binding capacity. In addition， compared with TM-sensitized BALB/c mice， galacturonic acid-modified TM (GA-TM) and Di-Galacturonic acid-modified TM (DGA-TM) were insufficient to stimulate sensitization， and significantly reduced the hypersecretion of IgE， IgG1， HIS， and IL-4， up-regulated IgG2a and IFN-γ levels to improve imbalanced Th1/Th2， Treg/Th17 immunity， and promoted mRNA expression of tight junction proteins. Together， this study confirmed that glycosylation modification alleviated sensitization by altering TM structure， reducing IgE binding allergic inflammatory response， and regulating cytokine immune balance. Overall， these results indicated that glycosylation modification was a promising method for decreasing the allergenic reactivity of allergic proteins.

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Insights into the mechanism of L-malic acid on drip loss of chicken meat under commercial conditions

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Journal of animal Science and Biotechnology 2024年第3期15卷 1312-1324页

作者： Haijun Sun Xue Yan Lu Wang Ruimin Zhu Meixia Chen Jingdong Yin Xin Zhang State Key Laboratory of animal Nutrition and Feeding College of Animal Science and TechnologyChina Agricultural UniversityBeijing 100193China New Hope Liuhe Co. Ltd./Key Laboratory of Feed and Livestock and Poultry Products Quality&Safety ControlMinistry of AgricultureChengduSichuan 610023China institute of animal husbandry and veterinary Medicine Beijing Academy of Agriculture and Forestry SciencesBeijing 100097China

Background A deterioration in the meat quality of broilers has attracted much more attention in recent years.L-malic acid(MA)is evidenced to decrease meat drip loss in broilers,but the underlying molecular mechanisms are still ***’s also not sure whether the outputs obtained under experimental conditions can be obtained in a com-mercial ***,we investigated the effects and mechanisms of dietary MA supplementation on chicken meat drip loss at large-scale *** Results showed that the growth performance and drip loss were improved by MA *** metabolome revealed that L-2-aminoadipic acid,β-aminoisobutyric acid,eicosapentaenoic acid,and nicotinamide,as well as amino acid metabolism pathways connected to the improvements of meat quality by MA *** transcriptome analysis further indicated that the effect of MA on drip loss was also related to the proper immune response,evidenced by the enhanced B cell receptor signaling pathway,NF-κB signaling pathway,TNF signaling pathway,and IL-17 signaling *** We provided evidence that MA decreased chicken meat drip loss under commercial *** and transcriptome revealed a comprehensive understanding of the underlying ***,MA could be used as a promising dietary supplement for enhancing the water-holding capacity of chicken meat.

关键词： Drip loss Immune response L-malic acid Meat quality Metabolome Transcriptome

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Major regulatory factors for reproductive performances of female chickens

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Asian pacific Journal of Reproduction 2024年第5期13卷 197-206页

作者： Debela Bayu Derese Lizhi Lu Fangxiong Shi College of animal Science and Technology Nanjing Agricultural UniversityNanjing 210095 China 2institute of animal husbandry and veterinary Medicine Zhejiang Academy of Agricultural SciencesHangzhou 310021 China 3Department of animal Science School of AgricultureAmbo UniversityP.O.Box 19OromiaEthiopia

The reproductive performance of female chickens is critical for determining the efficiency of production and productivity and thus *** have shown that the reproductive performance of female chickens is mainly regulated by the feed,hormones,genes,and light ***,we review the major factors regulating female chicken reproductive performance and assess the reproductive organs and their *** the current review,we highlight how the interconnections of hormones,candidate genes,and photo-stimulation regulate female chicken reproductive hormones and thus regulate the reproductive organ *** this regard,the roles of main hormones[gonadotropinreleasing hormone(GnRH)and genes(GnRH-Ⅰ)]in regulating sexual maturation and ovarian development and maintenance by influencing the survival and function of follicular granulosa cells were also *** addition,the current review also highlights how feeding female chickens with diets and artificial light-emitting diodes(LEDs)support the effective functioning of their reproductive capacity through the stimulation of sexual maturity at an appropriate age and regeneration of aged reproductive organs.

关键词： Chicken reproduction Gonadotropins GnRH-I gene Light emitting diodes

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