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Diet and monensin influence the temporal dynamics of the rumen microbiome in stocker and finishing cattle

Journal of Animal Science and Biotechnology 2024年第2期15卷 733-748页

作者： jianmin chai Caleb P.Weiss Paul A.Beck Wei Zhao Ying Li Jiangchao Zhao Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding College of Life Science and EngineeringFoshan UniversityFoshanChina Division of Agriculture Department of Animal ScienceUniversity of ArkansasFayettevilleARUSA Department of Animal and Food Sciences Oklahoma State UniversityStillwaterOKUSA Institute of Feed Research of Chinese Academy of Agricultural Sciences Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural AffairsBeijing 100193China

Background Stocker cattle diet and management influence beef cattle performance during the finishing stage,but knowledge of the dynamics of the rumen microbiome associated with the host are lacking.A longitudinal study was conducted to determine how the feeding strategy from the stocker to the finishing stages of production affects the temporal dynamics of rumen *** the stocker phase,either dry hay or wheat pasture were provided,and three levels of monensin were *** calves were then transported to a feedlot and received similar finishing diets with or without *** microbial samples were collected on d 0,28,85 during the stocker stage(S0,S28 and S85)and d 0,14,28,56,30 d before slaughter and the end of the trial during the finishing stage(F0,F14,F28,F56,Pre-Ba,and Final).The V4 region of the bacterial 16S rRNA gene of 263 rumen samples was *** Higher alpha diversity,including the number of observed bacterial features and the Shannon index,was observed in the stocker phase compared to the finishing *** bacterial amplicon sequence variants(ASVs)differentiating different sampling time points were *** treatments during the stocker stage temporally impact the dynamics of rumen *** example,shared bacteria,including Bacteroidales(ASV19)and Streptococcus infantarius(ASV94),were significantly higher in hay rumen on S28,S85,and F0,while Bacteroidaceae(ASV11)and Limivicinus(ASV15)were more abundant in *** affected rumen microbial composition at a specific *** to feedlot significantly influenced microbiome structure and diversity in hay-fed *** taxa associated with body weight were classified,and core microbiotas interacted with each other during the *** In summary,the temporal dynamics of the rumen microbiome in cattle at the stocker and finishing stage are influenced by multiple factors of the feeding *** at the stocker phase may t

关键词： Beef cattle Diet Feedlot phase Monensin Next-generation sequencing Rumen microbiota Stocker

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Transcriptomic and metabolomic insights into the roles of exogenous β-hydroxybutyrate acid for the development of rumen epithelium in young goats

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Animal Nutrition 2023年第4期15卷 10-21页

作者： Yimin Zhuang jianmin chai Mahmoud M.Abdelsattar Yuze Fu Naifeng Zhang Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs Institute of Feed Research of Chinese Academy of Agricultural SciencesBeijing 100081China Department of Animal Science Division of AgricultureUniversity of ArkansasFayettevilleAR 72701USA Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding College of Life Science and EngineeringFoshan UniversityFoshanChina Department of Animal and Poultry Production Faculty of AgricultureSouth Valley University83523 QenaEgypt

Beta-hydroxybutyric acid(BHBA),as one of the main metabolic ketones in the rumen epithelium,plays critical roles in cellular growth and *** ketogenic capacity is associated with the maturation of rumen in young ruminants,and the exogenous BHBA in diet may promote the rumen ***,the effects of exogenous BHBA on rumen remain *** is the first study to investigate the mechanisms of BHBA on gene expression and metabolism of rumen epithelium using young goats as a model through multi-omics ***-two young goats were divided into control,low dose,middle dose,and high dose groups by supplementation of BHBA in starter(0,3,6,and 9 g/day,respectively).Results demonstrated the dietary of BHBA promoted the growth performance of young goats and increased width and length of the rumen papilla(P<0.05).Hub genes in host transcriptome that were positively related to rumen characteristics and BHBA concentration were *** upregulated hub genes including NDUFC1,NDUFB4,NDUFB10,NDUFA11 and NDUFA1 were enriched in the gene ontology(GO)pathway of nicotinamide adenine dinucleotide(NADH)dehydrogenase(ubiquinone)activity,while ATP5ME,ATP5PO and ATP5PF were associated with ATP ***-PCR revealed the expression of genes(HMGCS2,BDH1,SLC16A3,etc.)associated with lipolysis increased significantly by BHBA supplementation(P<0.05).Metabolomics indicated that some metabolites such as glucose,palmitic acid,cortisol and capric acid were also increased(P<0.05).This study revealed that BHBA promoted rumen development through altering NADH balance and accelerating lipid metabolism,which provides a theoretical guidance for the strategies of gastrointestinal health and development of young ruminants.

关键词： Rumen Beta-hydroxybutyrate acid Lipid metabolism Transcriptome Metabolomics Goat

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The vaginal and fecal microbiomes are related to pregnancy status in beef heifers

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Journal of Animal Science and Biotechnology 2020年第1期11卷 58-70页

作者： Feilong Deng Maryanna McClure Rick Rorie Xiaofan Wang jianmin chai Xiaoyuan Wei Songjia Lai Jiangchao Zhao Department of Animal Science Division of AgricultureUniversity of ArkansasFayettevilleARUSA Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province Sichuan Agricultural UniversityChengduChina Special Key Laboratory of Microbial Resources and Drug Development Research Center for Medicine and BiologyZunyi Medical UniversityZunyiChina.

Background:The greatest impact on profitability of a commercial beef operation is ***,in beef heifers,little is known about the vaginal and fecal microbiota with respect to their relationship with *** this end,we followed heifers through gestation to examine the dynamics of vaginal and fecal microbial composition throughout ***:Heifers were exposed to an estrus synchronization protocol,observed over a 12-day period,artificially inseminated 12 h to 18 h after observed estrus,and subsequently exposed to bulls for a 50-day breeding *** samples were taken at pre-breeding(n=72),during the first(n=72),and second trimester(n=72)for all individuals,and third trimester for individuals with confirmed pregnancies(n=56).Fecal samples were taken at prebreeding(n=32)and during the first trimester(n=32),including bred and open *** generation sequencing of the V4 region of the 16 S rRNA gene via the Illumina Mi Seq platform was applied to all *** indices and the number of observed bacterial features were the same in fecal ***,significant differences in vaginal microbiome diversity between gestation stages were *** differences in beta-diversity were detected in vaginal or fecal samples regarding pregnancy status,but such differences were seen with fecal microbiome over *** Forest was developed to identify predictors of pregnancy status in vaginal(e.g.,Histophilus,Clostridiaceae,Campylobacter)and fecal(e.g.,Bacteroidales,Dorea)***:Our study shows that bovine vaginal and fecal microbiome could be used as biomarkers of bovine *** experiments are needed to validate these biomarkers and to examine their roles in a female’s ability to establish pregnancy.

关键词： Beef cattle Pregnancy Random forest Reproduction Vaginal microbiome

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Effects of weaning age on growth, nutrient digestibility and metabolism,and serum parameters in Hu lambs

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Animal Nutrition 2015年第4期1卷 344-348页

作者： jianmin chai Qiyu Diao Haichao Wang Yan Tu Xiaojing Tao Naifeng Zhang Feed Research Institute of Chinese Academy of Agricultural Sciences Key Laboratory of Feed Biotechnology of the Ministry of Agriculture Jiangsu Taizhou Helen Sheep Ltd.

This study was conducted to investigate the effect of weaning age on growth performance, nutrient digestion and metabolism, and serological indicators, and to obtain an optimal weaning age in Hu ***-eight newborn Hu lambs(birth weight, 2.53 ± 0.14 kg) were randomly divided into 4 groups. The lambs in control group(ER) suckled their dams. The lambs in other three experimental groups were weaned on milk replacer at 10.20, and 30 days of age(EW10, EW20, and EW30 groups),respectively. The results were as follows: 1) lambs in EW10 and EW30 groups had a lower(P 0.05) among groups; however, the apparent digestibility and deposition of calcium in early weaned lambs were lower(P < 0.05) than those in ewe-reared lambs. 4)The albumin content in EW30 group was lower(P < 0.05) than that in ER group; the globulin content in EW30 group was higher(P < 0.05) than that in other groups; the content of serum insulin-like growth factor-1 in weaned lambs tended to increase compared with lambs in ER group. Finally, the growth rate of lambs decreased within 10 days post-weaning, but early weaning boosted creep feed intake, leading to better growth and health later in life. The Hu lambs can be weaned on milk replacer and creep feed at 10 days of age.

关键词： Lambs Hu lambs Early weaning Milk replacer Growth development Digestibility and metabolism Serum indexes

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光谱分析仪测定磷生铁中硫含量的分析与研究

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世界有色金属 2015年第7期40卷 35-36页

作者：柴建民山西华圣铝业有限公司山西永济044501

本文探讨了铝电解生产中阳极组装主要材料磷生铁,通过直读光谱分析仪测量主要控制元素硫元素的准确性。通过对影响测定磷生铁中硫含量因素的分析与研究,采取适当的方法和措施,可提高光电直读光谱测定磷生铁中硫含量的准确性,满足生产的... 详细信息

本文探讨了铝电解生产中阳极组装主要材料磷生铁,通过直读光谱分析仪测量主要控制元素硫元素的准确性。通过对影响测定磷生铁中硫含量因素的分析与研究,采取适当的方法和措施,可提高光电直读光谱测定磷生铁中硫含量的准确性,满足生产的实际需要。

关键词：光谱法磷生铁硫准确性

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上海市期刊协会工作概述

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中国期刊年鉴 2014年第1期13卷 109-110页

作者：柴建民上海市期刊协会

2013年,是全面贯彻落实党的十八大精神的开局之年,上海市期刊协会在上海市新闻出版局的领导下,在广大会员单位的支持下,围绕市委宣传部和市新闻出版局的工作部署和要求,以促进上海期刊业更好更快发展为目标,注意激发行业正能量,积极探... 详细信息

2013年,是全面贯彻落实党的十八大精神的开局之年,上海市期刊协会在上海市新闻出版局的领导下,在广大会员单位的支持下,围绕市委宣传部和市新闻出版局的工作部署和要求,以促进上海期刊业更好更快发展为目标,注意激发行业正能量,积极探索期刊行业在新形势下的创新转型之路,主要开展了以下几方面的工作:2012年协会开展了“上海期刊创新实践”大型调研活动,2013年年初编成《上海期刊创新实践案例汇编》一书。协会将该书发到各期刊出版单位,大力推广创新经验。

关键词：期刊上海协会工作新闻出版局创新实践会员单位工作部署出版单位

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上海市期刊协会工作概述

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中国期刊年鉴 2016年第1期15卷 89-90页

作者：柴建民上海市期刊协会

2015年,上海市期刊协会坚持以党的“十八大”和十八届三中、四中、五中全会精神为指导,按照上级主管单位的工作部署和工作要求,紧密围绕协会宗旨,立足服务行业,积极开展工作,主要做了以下八方面的工作。2015年年初,上海邮政公司要求邮... 详细信息

2015年,上海市期刊协会坚持以党的“十八大”和十八届三中、四中、五中全会精神为指导,按照上级主管单位的工作部署和工作要求,紧密围绕协会宗旨,立足服务行业,积极开展工作,主要做了以下八方面的工作。2015年年初,上海邮政公司要求邮发不满10000份的上海期刊支付发行起点费,发行起点费最高可达邮发码洋的80%。许多期刊接到邮政公司的书面通知后反响强烈,纷纷要求上海市期刊协会与上海邮政公司协调。上海市期刊协会立即在行业内做具体情况调查,并向政府部门做了汇报。

关键词：上海期刊协会工作工作部署服务行业政府部门邮政发行

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LUGB涡街流量计的技术特点与应用

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世界有色金属 2015年第5期40卷 48-50页

作者：柴建民山西华圣铝业有限公司山西永济044501

本文介绍了LUGB涡街流量计的结构及工作原理,重点从仪表选型,流量换算等在工业生产中的应用做了详细论述。

关键词：涡街流量计流量换算应用

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上海市期刊协会工作概述

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中国期刊年鉴 2015年第1期14卷 94-95页

作者：柴建民上海市期刊协会

2014年,上海市期刊协会坚持以党的十八大和十八届三中全会精神为指导,在市新闻出版局的领导、指导下,紧密依靠广大会员单位,围绕协会宗旨和行业实际,完成了预期的工作目标,取得了一定的工作成效。一、深入开展调研工作,为行业发展出谋划... 详细信息

2014年,上海市期刊协会坚持以党的十八大和十八届三中全会精神为指导,在市新闻出版局的领导、指导下,紧密依靠广大会员单位,围绕协会宗旨和行业实际,完成了预期的工作目标,取得了一定的工作成效。一、深入开展调研工作,为行业发展出谋划策1.第一季度完成了上海期刊集群化发展的调研报告,对目前上海期刊集群化进展的状况进行了梳理,对期刊为什么要集群化发展进行了理论上的探索,并向政府部门提出了上海期刊集群化发展的意见和建议。

关键词：期刊上海协会工作新闻出版局集群化会员单位政府部门调研

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人工哺育代乳粉对湖羊双胎羔羊生长发育、营养物质消化和血清学指标的影响

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动物营养学报 2015年第2期27卷 436-447页

作者：王海超张乃锋柴建民刁其玉中国农业科学院饲料研究所农业部饲料生物技术重点实验室北京100081

本文从生长发育、营养物质消化和血清学指标3方面研究人工哺育代乳粉对湖羊双胎羔羊早期培育的效果。选取24对新生湖羊双胎公羔羊,采用配对试验设计分成2组,1对双胎羔羊分别分至其中1组,MM组随母哺乳,MR组人工哺育代乳粉,每组24只。饲... 详细信息

本文从生长发育、营养物质消化和血清学指标3方面研究人工哺育代乳粉对湖羊双胎羔羊早期培育的效果。选取24对新生湖羊双胎公羔羊,采用配对试验设计分成2组,1对双胎羔羊分别分至其中1组,MM组随母哺乳,MR组人工哺育代乳粉,每组24只。饲养试验试验期90 d,60日龄断奶,每隔10 d于晨饲前进行称重、采血,60和90日龄时,随机选取3对双胎羔羊进行屠宰。在46～55日龄和76～85日龄随机选取4对双胎羔羊进行消化代谢试验。结果显示：1）在20、30、40日龄时,MR组羔羊的体重显著低于MM组（P＜0.05）,但差异在逐渐减小,到50日龄以后就不存在显著性差异（ P＞0.05）。 MR组羔羊的平均日增重在10~20日龄显著低于MM组（P＜0.05）,在40～50日龄显著高于 MM 组（P＜0.05）,其他时段差异不显著（P＞0.05）,0～90日龄的平均日增重差异亦不显著（ P＞0.05）。2）在60日龄时,MR组羔羊的瘤胃占复胃总重比例显著高于MM组（P＜0.05）,而瓣胃和皱胃占复胃总重比例显著低于MM组（P＜0.05）。在90日龄时,2组羔羊各胃室重量以及占复胃总重比例均无显著性差异（P＞0.05）,但MR组羔羊瘤胃的重量比 MM组高；MR 组羔羊的小肠占宰前活重比例显著高于 MM组（ P＜0.05）；代乳粉对2组羔羊内脏器官重量的影响差异不显著（ P＞0.05）。3）代乳粉对常规营养物质的表观消化率的影响不显著（ P＞0.05）。4）代乳粉对血清生化指标（总蛋白、胆固醇、葡萄糖、甘油三酯、白蛋白、尿素氮含量,碱性磷酸酶活性）以及血清免疫指标（免疫球蛋白G、免疫球蛋白M、免疫球蛋白A含量）的影响不显著（ P＞0.05）,并且MR组与MM组呈现出相似的变化规律。综合以上,人工哺育代乳粉的培育方式能够达到与母乳哺育湖羊双胎羔羊相同的效果。

关键词：早期断奶双胎羔羊代乳粉生长发育消化代谢

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