Article(id=1307013650691150789, tenantId=1146029695717560320, journalId=1306274286668972124, issueId=1307013423896753139, articleNumber=null, orderNo=null, doi=10.11843/j.issn.0366-6964.2026.03.028, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1742227200000, receivedDateStr=2025-03-18, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1789545937464, onlineDateStr=2026-09-16, pubDate=1774195200000, pubDateStr=2026-03-23, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1789545937464, onlineIssueDateStr=2026-09-16, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1789545937464, creator=13701087609, updateTime=1789545937464, updator=13701087609, issue=Issue{id=1307013423896753139, tenantId=1146029695717560320, journalId=1306274286668972124, year='2026', volume='57', issue='3', pageStart='1177', pageEnd='1776', issueExtLink='null', onlineDate='null', pubDate='1774195200000', pubDateStr='2026-03-23', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1789545883392, creator='13701087609', updateTime=1789609930841, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1307282058464743901, tenantId=1146029695717560320, journalId=1306274286668972124, issueId=1307013423896753139, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1307282058464743902, tenantId=1146029695717560320, journalId=1306274286668972124, issueId=1307013423896753139, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1506, endPage=1515, ext={EN=ArticleExt(id=1307013650867311558, articleId=1307013650691150789, tenantId=1146029695717560320, journalId=1306274286668972124, language=EN, title=Effects of Folic Acid on Rumen Fermentation Parameters, Antioxidant Indicators and Microbial Population of Dairy Cows
in vitro, columnId=1307007400746176631, journalTitle=Acta Veterinaria et Zootechnica Sinica, columnName=ANIMAL NUTRITION AND FEEDS, runingTitle=null, highlight=null, articleAbstract=
The study evaluated the effects of folic acid (FA) on rumen fermentation parameters, antioxidant indicators and microbial population in dairy cows in vitro. Four early lactation Holstein dairy cows were used as the donor of ruminal fluid, and the total mixed ratio of dairy cows was used as the fermentation substrate. The supplementation level of FA was 0, 1.5, 3.0, 4.5, 6.0, 7.5 and 9.0 mg·kg-1 dry matter (DM), respectively. After incubation at 39℃ for 24 h, ruminal DM degradability (DMD), gas production (GP), FA content, antioxidant indicators, fermentation parameters, microbial enzyme activity and population were determined. The results were showed as follows: 1) The DMD was greater (P<0.05) for the supplementation of FA at 1.5, 3.0 and 4.5 mg·kg-1 DM, and the 24 h GP and theoretical maximum GP were greater (P<0.05) for the supplementation of FA at 1.5, 3.0, 4.5 and 6.0 mg·kg-1 DM compared with other groups. 2) Ruminal fluid FA content was greater (P<0.05) and malondialdehyde content was lower (P<0.05) for the groups with FA supplementation compared with the control. The activity of superoxide dismutase was greater (P<0.05) in the groups with 1.5, 3.0, 4.5 and 6.0 mg·kg-1 DM FA supplementation compared with other groups. The activity of glutathione peroxidase was greater (P<0.05) in the groups with supplementation of FA at 3.0, 4.5, 6.0 and 7.5 mg·kg-1 DM than in the control and 1.5 mg·kg-1 DM FA supplementation groups. The total antioxidant capacity activity was greater (P<0.05) for the supplementation of FA at 1.5, 3.0, 4.5, 6.0 and 7.5 mg·kg-1 DM than for the control. 3) The groups with FA addition had greater (P<0.05) total volatile fatty acids (TVFA) and acetate production compared with the control, and the production of TVFA and acetate were greater (P<0.05) for the 3.0 and 4.5 mg·kg-1 DM FA supplementation than for 7.5 and 9.0 mg·kg-1 DM FA supplementation. 4) The groups with FA addition had greater (P<0.05) activities of cellobiase and xylanase compared with the control, and the activity of cellobiase was greater (P<0.05) for the supplementation of FA at 3.0, 4.5 and 6.0 mg·kg-1 DM than for the supplementation of FA 1.5 and 7.5 mg·kg-1 DM, and the activity of xylanase was greater (P<0.05) for the 1.5, 3.0 and 4.5 mg·kg-1 DM FA supplementation than for the 7.5 and 9.0 mg·kg-1 DM FA supplementation. 5) The groups with FA addition had greater (P<0.05) populations of total bacteria, protozoa and R. flavefaciens compared with the control. The total bacteria population was greater (P<0.05) in the 4.5, 6.0 and 7.5 mg·kg-1 DM FA supplementation groups than in the 1.5 and 9.0 mg·kg-1 DM FA supplementation groups. The R. flavefaciens population was greater (P<0.05) for the 1.5, 3.0 and 4.5 mg·kg-1 DM FA supplementation than for the 7.5 and 9.0 mg·kg-1 DM FA supplementation. The fungi population was greater (P<0.05) in the 3.0, 4.5, 6.0 and 7.5 mg·kg-1 DM FA groups than in the control, 1.5 and 9.0 mg·kg-1 DM FA groups. The R. albus population was greater (P<0.05) for the groups with 1.5, 3.0, 4.5 and 6.0 mg·kg-1 DM FA supplementation than for the control, 7.5 and 9.0 mg·kg-1 DM FA groups. The F. succinogenes population was greater (P<0.05) in the 4.5, 6.0, 7.5 and 9.0 mg·kg-1 DM FA groups than in the control and 1.5 mg·kg-1 DM FA group. In conclusion, the supplementation of FA improves rumen antioxidant status, stimulate cellulolytic and amylolytic bacteria growth, and resulting in an increase in DMD and TVFA production. The proper level of ruminal FA supply is 1.5-3.0 mg·kg-1 DM in the condition of the current study.
, authors=Jiang FENG, Nan SUN, Haodong ZHANG, Yuyang XIE, Qiang LIU, Gang GUO, Wenjie HUO, Cong WANG, authorsList=Jiang FENG, Nan SUN, Haodong ZHANG, Yuyang XIE, Qiang LIU, Gang GUO, Wenjie HUO, Cong WANG, authorCompany=null, correspAuthors=Qiang LIU, authorNote=null, correspAuthorsNote=
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旨在探究叶酸(FA)对奶牛体外瘤胃发酵参数、抗氧化指标和菌群数量的影响。采用单因素试验设计,以4头泌乳早期荷斯坦奶牛作为瘤胃液供体,奶牛全混合日粮为发酵底物,分别添加FA 0、1.5、3.0、4.5、6.0、7.5和9.0 mg·kg-1干物质(DM),39 ℃条件下体外培养24 h。测定发酵液DM降解率(DMD)、产气量(GP)、FA含量、抗氧化指标、发酵参数、酶活和微生物数量。结果显示:1)1.5、3.0和4.5 mg·kg-1 DM FA组DMD和1.5、3.0、4.5和6.0 mg·kg-1 DM FA组24 h GP和理论最大GP显著高于其余各组(P<0.05)。2)各FA添加组发酵液中FA含量显著高于对照组(P<0.05),丙二醛含量显著低于对照组(P<0.05)。1.5、3.0、4.5和6.0 mg·kg-1 DM FA组超氧化物歧化酶活性显著高于其余各组(P<0.05)。3.0、4.5、6.0和7.5 mg·kg-1 DM FA组谷胱甘肽过氧化物酶活性显著高于对照和1.5 mg·kg-1 DM FA组(P<0.05)。1.5、3.0、4.5、6.0和7.5 mg·kg-1 DM FA组总抗氧化能力活性显著高于对照组(P<0.05)。3)各FA添加组总挥发性脂肪酸和乙酸产量均显著高于对照组(P<0.05),且3.0和4.5 mg·kg-1 DM FA组显著高于7.5和9.0 mg·kg-1 DM FA组(P<0.05)。4)各FA添加组纤维二糖酶和木聚糖酶活性均显著高于对照组(P<0.05),且3.0、4.5和6.0 mg·kg-1 DM FA组纤维二糖酶活性显著高于1.5和7.5 mg·kg-1 DM FA组(P<0.05),1.5、3.0和4.5 mg·kg-1 DM FA组木聚糖酶活性显著高于7.5和9.0 mg·kg-1 DM FA组(P<0.05)。5)各FA添加组总细菌、原虫和黄色瘤胃球菌数量显著高于对照组(P<0.05),其中4.5、6.0和7.5 mg·kg-1 DM FA组总细菌数量显著高于1.5和9.0 mg·kg-1 DM FA组(P<0.05),1.5、3.0和4.5 mg·kg-1 DM FA组黄色瘤胃球菌数量显著高于7.5和9.0 mg·kg-1 DM FA组(P<0.05)。3.0、4.5、6.0和7.5 mg·kg-1 DM FA组总真菌数量显著高于对照、1.5和9.0 mg·kg-1 DM FA组(P<0.05)。1.5、3.0、4.5和6.0 mg·kg-1 DM FA组白色瘤胃球菌数量显著高于对照、7.5和9.0 mg·kg-1 DM FA组(P<0.05)。4.5、6.0、7.5和9.0 mg·kg-1 DM FA组产琥珀酸丝状杆菌数量显著高于对照和1.5 mg·kg-1 DM FA组(P<0.05)。综上表明,补充FA改善了瘤胃抗氧化状态,促进了纤维分解菌生长,进而提高了DMD和TVFA产量;本试验条件下,瘤胃较适FA添加水平为1.5~3.0 mg·kg-1 DM。
, authors=冯江, 孙楠, 张浩东, 谢宇阳, 刘强, 郭刚, 霍文婕, 王聪, authorsList=冯江, 孙楠, 张浩东, 谢宇阳, 刘强, 郭刚, 霍文婕, 王聪, authorCompany=null, correspAuthors=刘强, authorNote=
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冯江,硕士生,主要从事反刍动物营养研究,E-mail: 18835535570@163.com
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冯江,硕士生,主要从事反刍动物营养研究,E-mail: 18835535570@163.com
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10.1002/jsfa.8691, articleTitle=null, refAbstract=null)], funds=[Fund(id=1307281707430858863, tenantId=1146029695717560320, journalId=1306274286668972124, articleId=1307013650691150789, awardId=32272824, language=CN, fundingSource=国家自然科学基金项目(32272824), fundOrder=null, country=null), Fund(id=1307281707493773424, tenantId=1146029695717560320, journalId=1306274286668972124, articleId=1307013650691150789, awardId=YDZJSX2022A039, language=CN, fundingSource=中央引导地方科技发展资金项目(YDZJSX2022A039), fundOrder=null, country=null), Fund(id=1307281707556687985, tenantId=1146029695717560320, journalId=1306274286668972124, articleId=1307013650691150789, awardId=2025CYJSTX13, language=CN, fundingSource=山西省现代农业牛产业技术体系建设项目(2025CYJSTX13), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1307281700237627436, tenantId=1146029695717560320, journalId=1306274286668972124, articleId=1307013650691150789, xref=null, ext=[AuthorCompanyExt(id=1307281700246016045, tenantId=1146029695717560320, journalId=1306274286668972124, articleId=1307013650691150789, companyId=1307281700237627436, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=College of Animal Science,Shanxi Agricultural University,Taigu 030801,China), AuthorCompanyExt(id=1307281700254404654, tenantId=1146029695717560320, journalId=1306274286668972124, articleId=1307013650691150789, companyId=1307281700237627436, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=山西农业大学动物科学学院,太谷 030801)])], figs=[ArticleFig(id=1307281704788447329, tenantId=1146029695717560320, journalId=1306274286668972124, articleId=1307013650691150789, language=EN, label=Table 1, caption=
Composition and nutrient levels of basal diet (DM basis)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 原料 Ingredient | 含量 Content | 营养水平2) Nutrient levels | 含量 Content |
|---|
| 玉米青贮 Corn silage | 26.0 | 有机物 OM | 94.5 |
| 苜蓿干草 Alfalfa hay | 13.0 | 粗蛋白质 CP | 17.2 |
| 燕麦草 Oat hay | 11.0 | 粗脂肪 EE | 3.20 |
| 玉米 Corn grain | 24.0 | 中性洗涤纤维 NDF | 31.1 |
| 麸皮 Wheat bran | 6.00 | 酸性洗涤纤维 ADF | 19.3 |
| 豆粕 Soybean meal | 10.6 | 钙 Ca | 0.70 |
| 菜籽粕 Rapeseed meal | 2.50 | 磷 P | 0.50 |
| 棉籽粕 Cottonseed meal | 5.00 | 泌乳净能/(MJ·kg-1) NEL | 6.63 |
| 碳酸钙 CaCO3 | 0.60 | | |
| 食盐 NaCl | 0.50 | | |
| 磷酸氢钙 CaHPO4 | 0.30 | | |
| 预混料 Premix1) | 0.50 | | |
| 合计 Total | 100.0 | | |
), ArticleFig(id=1307281704863944802, tenantId=1146029695717560320, journalId=1306274286668972124, articleId=1307013650691150789, language=CN, label=表1, caption=
基础日粮组成及营养水平(干物质基础) (%)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 原料 Ingredient | 含量 Content | 营养水平2) Nutrient levels | 含量 Content |
|---|
| 玉米青贮 Corn silage | 26.0 | 有机物 OM | 94.5 |
| 苜蓿干草 Alfalfa hay | 13.0 | 粗蛋白质 CP | 17.2 |
| 燕麦草 Oat hay | 11.0 | 粗脂肪 EE | 3.20 |
| 玉米 Corn grain | 24.0 | 中性洗涤纤维 NDF | 31.1 |
| 麸皮 Wheat bran | 6.00 | 酸性洗涤纤维 ADF | 19.3 |
| 豆粕 Soybean meal | 10.6 | 钙 Ca | 0.70 |
| 菜籽粕 Rapeseed meal | 2.50 | 磷 P | 0.50 |
| 棉籽粕 Cottonseed meal | 5.00 | 泌乳净能/(MJ·kg-1) NEL | 6.63 |
| 碳酸钙 CaCO3 | 0.60 | | |
| 食盐 NaCl | 0.50 | | |
| 磷酸氢钙 CaHPO4 | 0.30 | | |
| 预混料 Premix1) | 0.50 | | |
| 合计 Total | 100.0 | | |
), ArticleFig(id=1307281704952025187, tenantId=1146029695717560320, journalId=1306274286668972124, articleId=1307013650691150789, language=EN, label=Table 2, caption=
Effects of FA on rumen dry matter degradability and gas production parameters in vitro
, figureFileSmall=null, figureFileBig=null, tableContent=
项目 Item | FA添加水平/(mg·kg-1 DM) FA addition level | 标准误 SEM | P值 P-value |
|---|
| 0 | 1.5 | 3.0 | 4.5 | 6.0 | 7.5 | 9.0 | PT | PL | PQ |
|---|
| 干物质降解率/% DMD | 65.0b | 72.0a | 72.7a | 73.6a | 63.7b | 65.0b | 64.0b | 0.715 | 0.001 | 0.053 | 0.001 |
| 累积产气量/mL GP | 63.8b | 71.9a | 73.0a | 77.6a | 74.5a | 64.3b | 64.7b | 2.774 | 0.016 | 0.072 | 0.031 |
| 理论最大产气量/mL a | 71.5b | 83.7a | 86.4a | 89.3a | 84.1a | 76.7b | 76.1b | 3.074 | 0.022 | 0.114 | 0.028 |
| 产气速率/(mL·h-1)c | 0.09 | 0.09 | 0.08 | 0.08 | 0.08 | 0.09 | 0.09 | 0.001 | 0.087 | 0.142 | 0.109 |
), ArticleFig(id=1307281705023328356, tenantId=1146029695717560320, journalId=1306274286668972124, articleId=1307013650691150789, language=CN, label=表2, caption=
FA对体外瘤胃干物质降解率和产气参数的影响
, figureFileSmall=null, figureFileBig=null, tableContent=
项目 Item | FA添加水平/(mg·kg-1 DM) FA addition level | 标准误 SEM | P值 P-value |
|---|
| 0 | 1.5 | 3.0 | 4.5 | 6.0 | 7.5 | 9.0 | PT | PL | PQ |
|---|
| 干物质降解率/% DMD | 65.0b | 72.0a | 72.7a | 73.6a | 63.7b | 65.0b | 64.0b | 0.715 | 0.001 | 0.053 | 0.001 |
| 累积产气量/mL GP | 63.8b | 71.9a | 73.0a | 77.6a | 74.5a | 64.3b | 64.7b | 2.774 | 0.016 | 0.072 | 0.031 |
| 理论最大产气量/mL a | 71.5b | 83.7a | 86.4a | 89.3a | 84.1a | 76.7b | 76.1b | 3.074 | 0.022 | 0.114 | 0.028 |
| 产气速率/(mL·h-1)c | 0.09 | 0.09 | 0.08 | 0.08 | 0.08 | 0.09 | 0.09 | 0.001 | 0.087 | 0.142 | 0.109 |
), ArticleFig(id=1307281705098825830, tenantId=1146029695717560320, journalId=1306274286668972124, articleId=1307013650691150789, language=EN, label=Table 3, caption=
Effects of FA on rumen FA content and antioxidant indicators in vitro
, figureFileSmall=null, figureFileBig=null, tableContent=
项目 Item | FA添加水平/(mg·kg-1 DM) FA addition level | 标准误 SEM | P值 P-value |
|---|
| 0 | 1.5 | 3.0 | 4.5 | 6.0 | 7.5 | 9.0 | PT | PL | PQ |
|---|
| 叶酸/(µmol·mL-1) FA | 10.7b | 13.9a | 13.5a | 14.1a | 14.4a | 14.4a | 14.6a | 1.092 | 0.007 | 0.014 | 0.367 |
| 超氧化物歧化酶/(U·mL-1) SOD | 17.9b | 24.4a | 24.3a | 26.1a | 27.7a | 21.6b | 19.9b | 2.337 | 0.006 | 0.291 | 0.032 |
| 谷胱甘肽过氧化物酶/(U·mL-1)GSH-Px | 68.4c | 87.2b | 100a | 106a | 108a | 104a | 96.2ab | 4.173 | 0.012 | 0.033 | 0.445 |
| 总抗氧化能力/(U·mL-1) T-AOC | 4.97b | 6.25a | 6.44a | 6.05a | 5.64a | 5.53a | 5.22ab | 0.631 | 0.032 | 0.041 | 0.097 |
| 丙二醛/(nmol·L-1) MDA | 3.84a | 2.74b | 2.29b | 2.23b | 2.24b | 2.18b | 2.37b | 0.223 | 0.034 | 0.027 | 0.334 |
), ArticleFig(id=1307281705161740391, tenantId=1146029695717560320, journalId=1306274286668972124, articleId=1307013650691150789, language=CN, label=表3, caption=
FA对体外瘤胃FA含量和抗氧化指标的影响
, figureFileSmall=null, figureFileBig=null, tableContent=
项目 Item | FA添加水平/(mg·kg-1 DM) FA addition level | 标准误 SEM | P值 P-value |
|---|
| 0 | 1.5 | 3.0 | 4.5 | 6.0 | 7.5 | 9.0 | PT | PL | PQ |
|---|
| 叶酸/(µmol·mL-1) FA | 10.7b | 13.9a | 13.5a | 14.1a | 14.4a | 14.4a | 14.6a | 1.092 | 0.007 | 0.014 | 0.367 |
| 超氧化物歧化酶/(U·mL-1) SOD | 17.9b | 24.4a | 24.3a | 26.1a | 27.7a | 21.6b | 19.9b | 2.337 | 0.006 | 0.291 | 0.032 |
| 谷胱甘肽过氧化物酶/(U·mL-1)GSH-Px | 68.4c | 87.2b | 100a | 106a | 108a | 104a | 96.2ab | 4.173 | 0.012 | 0.033 | 0.445 |
| 总抗氧化能力/(U·mL-1) T-AOC | 4.97b | 6.25a | 6.44a | 6.05a | 5.64a | 5.53a | 5.22ab | 0.631 | 0.032 | 0.041 | 0.097 |
| 丙二醛/(nmol·L-1) MDA | 3.84a | 2.74b | 2.29b | 2.23b | 2.24b | 2.18b | 2.37b | 0.223 | 0.034 | 0.027 | 0.334 |
), ArticleFig(id=1307281705245626472, tenantId=1146029695717560320, journalId=1306274286668972124, articleId=1307013650691150789, language=EN, label=Table 4, caption=
Effects of FA on rumen fermentation parameters in vitro
, figureFileSmall=null, figureFileBig=null, tableContent=
项目 Item | FA添加水平/(mg·kg-1 DM) FA addition level | 标准误 SEM | P值 P-value |
|---|
| 0 | 1.5 | 3.0 | 4.5 | 6.0 | 7.5 | 9.0 | PT | PL | PQ |
|---|
| pH | 7.06 | 7.07 | 7.09 | 7.10 | 6.98 | 7.15 | 7.06 | 0.043 | 0.176 | 0.245 | 0.252 |
| 总挥发酸/(mmol·L-1)TVFA | 65.1d | 72.2ab | 73.9a | 75.8a | 72.7ab | 67.9c | 69.8c | 1.079 | 0.001 | 0.283 | 0.001 |
| 乙酸/(mmol·L-1) Acetate | 40.4d | 46.7ab | 47.7a | 48.8a | 46.7ab | 43.4c | 44.2c | 0.376 | 0.001 | 0.280 | 0.001 |
| 丙酸/(mmol·L-1)Propionate | 11.6 | 12.1 | 12.4 | 12.8 | 12.3 | 11.7 | 11.9 | 0.229 | 0.103 | 0.226 | 0.215 |
| 丁酸/(mmol·L-1) Butyrate | 9.07b | 9.67a | 9.65a | 9.93a | 9.57a | 8.96b | 9.13b | 0.089 | 0.003 | 0.141 | 0.002 |
| 戊酸/(mmol·L-1) Valerate | 1.07 | 1.00 | 1.10 | 1.10 | 1.13 | 0.97 | 1.17 | 0.025 | 0.327 | 0.844 | 0.432 |
| 异丁酸/(mmol·L-1) Isobutyrate | 0.90 | 0.90 | 0.97 | 0.97 | 0.97 | 0.87 | 1.07 | 0.020 | 0.138 | 0.249 | 0.333 |
| 异戊酸/(mmol·L-1)I sovalerate | 2.07 | 1.97 | 2.17 | 2.17 | 2.03 | 1.93 | 2.10 | 0.041 | 0.111 | 0.334 | 0.117 |
| 乙酸/丙酸 Acetate/Propionate | 3.49b | 3.87a | 3.85a | 3.82a | 3.80a | 3.71a | 3.70a | 0.032 | 0.005 | 0.041 | 0.078 |
| 氨态氮/(mg·dL-1) NH3-N | 42.5c | 44.5b | 44.7b | 44.8b | 45.2b | 45.3b | 50.6a | 0.539 | 0.001 | 0.001 | 0.176 |
| 微生物蛋白质/(g·L-1) MCP | 0.59 | 0.57 | 0.59 | 0.60 | 0.57 | 0.55 | 0.58 | 0.007 | 0.639 | 0.279 | 1.000 |
), ArticleFig(id=1307281705321123945, tenantId=1146029695717560320, journalId=1306274286668972124, articleId=1307013650691150789, language=CN, label=表4, caption=
FA对体外瘤胃发酵参数的影响
, figureFileSmall=null, figureFileBig=null, tableContent=
项目 Item | FA添加水平/(mg·kg-1 DM) FA addition level | 标准误 SEM | P值 P-value |
|---|
| 0 | 1.5 | 3.0 | 4.5 | 6.0 | 7.5 | 9.0 | PT | PL | PQ |
|---|
| pH | 7.06 | 7.07 | 7.09 | 7.10 | 6.98 | 7.15 | 7.06 | 0.043 | 0.176 | 0.245 | 0.252 |
| 总挥发酸/(mmol·L-1)TVFA | 65.1d | 72.2ab | 73.9a | 75.8a | 72.7ab | 67.9c | 69.8c | 1.079 | 0.001 | 0.283 | 0.001 |
| 乙酸/(mmol·L-1) Acetate | 40.4d | 46.7ab | 47.7a | 48.8a | 46.7ab | 43.4c | 44.2c | 0.376 | 0.001 | 0.280 | 0.001 |
| 丙酸/(mmol·L-1)Propionate | 11.6 | 12.1 | 12.4 | 12.8 | 12.3 | 11.7 | 11.9 | 0.229 | 0.103 | 0.226 | 0.215 |
| 丁酸/(mmol·L-1) Butyrate | 9.07b | 9.67a | 9.65a | 9.93a | 9.57a | 8.96b | 9.13b | 0.089 | 0.003 | 0.141 | 0.002 |
| 戊酸/(mmol·L-1) Valerate | 1.07 | 1.00 | 1.10 | 1.10 | 1.13 | 0.97 | 1.17 | 0.025 | 0.327 | 0.844 | 0.432 |
| 异丁酸/(mmol·L-1) Isobutyrate | 0.90 | 0.90 | 0.97 | 0.97 | 0.97 | 0.87 | 1.07 | 0.020 | 0.138 | 0.249 | 0.333 |
| 异戊酸/(mmol·L-1)I sovalerate | 2.07 | 1.97 | 2.17 | 2.17 | 2.03 | 1.93 | 2.10 | 0.041 | 0.111 | 0.334 | 0.117 |
| 乙酸/丙酸 Acetate/Propionate | 3.49b | 3.87a | 3.85a | 3.82a | 3.80a | 3.71a | 3.70a | 0.032 | 0.005 | 0.041 | 0.078 |
| 氨态氮/(mg·dL-1) NH3-N | 42.5c | 44.5b | 44.7b | 44.8b | 45.2b | 45.3b | 50.6a | 0.539 | 0.001 | 0.001 | 0.176 |
| 微生物蛋白质/(g·L-1) MCP | 0.59 | 0.57 | 0.59 | 0.60 | 0.57 | 0.55 | 0.58 | 0.007 | 0.639 | 0.279 | 1.000 |
), ArticleFig(id=1307281705388232810, tenantId=1146029695717560320, journalId=1306274286668972124, articleId=1307013650691150789, language=EN, label=Table 5, caption=
Effects of FA on rumen microbial enzyme activities in vitro
, figureFileSmall=null, figureFileBig=null, tableContent=
项目 Item | FA添加水平/(mg·kg-1 DM) FA addition level | 标准误 SEM | P值 P-value |
|---|
| 0 | 1.5 | 3.0 | 4.5 | 6.0 | 7.5 | 9.0 | PT | PL | PQ |
|---|
| 羧甲基纤维素酶 CMC | 1.19 | 1.40 | 1.43 | 1.47 | 1.43 | 1.34 | 1.33 | 0.029 | 0.096 | 0.134 | 0.705 |
| 纤维二糖酶 Cellobiase | 0.19c | 0.40b | 0.53a | 0.56a | 0.51a | 0.43b | 0.49ab | 0.017 | 0.048 | 0.027 | 0.816 |
| 木聚糖酶 Xylanase | 1.16c | 1.54a | 1.64a | 1.68a | 1.48ab | 1.42b | 1.42b | 0.060 | 0.040 | 0.147 | 0.046 |
| 果胶酶 Pectinase | 0.50c | 0.78a | 0.88a | 0.83a | 0.80a | 0.72ab | 0.61b | 0.016 | 0.045 | 0.131 | 0.010 |
| α-淀粉酶 α-amylase | 0.21b | 0.24b | 0.26b | 0.52a | 0.58a | 0.59a | 0.59a | 0.009 | 0.028 | 0.036 | 0.391 |
| 蛋白酶 Protease | 0.34c | 0.46b | 0.51b | 0.57ab | 0.62a | 0.62a | 0.64a | 0.011 | 0.040 | 0.009 | 0.207 |
), ArticleFig(id=1307281707070148716, tenantId=1146029695717560320, journalId=1306274286668972124, articleId=1307013650691150789, language=CN, label=表5, caption=
FA对体外瘤胃微生物酶活性的影响 (U·mL-1)
, figureFileSmall=null, figureFileBig=null, tableContent=
项目 Item | FA添加水平/(mg·kg-1 DM) FA addition level | 标准误 SEM | P值 P-value |
|---|
| 0 | 1.5 | 3.0 | 4.5 | 6.0 | 7.5 | 9.0 | PT | PL | PQ |
|---|
| 羧甲基纤维素酶 CMC | 1.19 | 1.40 | 1.43 | 1.47 | 1.43 | 1.34 | 1.33 | 0.029 | 0.096 | 0.134 | 0.705 |
| 纤维二糖酶 Cellobiase | 0.19c | 0.40b | 0.53a | 0.56a | 0.51a | 0.43b | 0.49ab | 0.017 | 0.048 | 0.027 | 0.816 |
| 木聚糖酶 Xylanase | 1.16c | 1.54a | 1.64a | 1.68a | 1.48ab | 1.42b | 1.42b | 0.060 | 0.040 | 0.147 | 0.046 |
| 果胶酶 Pectinase | 0.50c | 0.78a | 0.88a | 0.83a | 0.80a | 0.72ab | 0.61b | 0.016 | 0.045 | 0.131 | 0.010 |
| α-淀粉酶 α-amylase | 0.21b | 0.24b | 0.26b | 0.52a | 0.58a | 0.59a | 0.59a | 0.009 | 0.028 | 0.036 | 0.391 |
| 蛋白酶 Protease | 0.34c | 0.46b | 0.51b | 0.57ab | 0.62a | 0.62a | 0.64a | 0.011 | 0.040 | 0.009 | 0.207 |
), ArticleFig(id=1307281707149840493, tenantId=1146029695717560320, journalId=1306274286668972124, articleId=1307013650691150789, language=EN, label=Table 6, caption=
Effects of FA on rumen microbial population in vitro
, figureFileSmall=null, figureFileBig=null, tableContent=
项目 Item | FA添加水平/(mg·kg-1 DM) FA addition level | 标准误 SEM | P值 P-value |
|---|
| 0 | 1.5 | 3.0 | 4.5 | 6.0 | 7.5 | 9.0 | PT | PL | PQ |
|---|
| 总细菌 Total bacteria | 11.5c | 11.7b | 11.8ab | 12.0a | 11.9a | 11.9a | 11.7b | 0.038 | 0.003 | 0.035 | 0.204 |
| 总真菌 Total fungi | 7.29c | 7.48b | 7.60a | 7.62a | 7.63a | 7.63a | 7.34c | 0.061 | 0.007 | 0.312 | 0.042 |
| 总原虫 Total protozoa | 5.99b | 6.41a | 6.44a | 6.46a | 6.47a | 6.45a | 6.48a | 0.102 | 0.002 | 0.007 | 0.205 |
| 白色瘤胃球菌 R. albus | 7.91c | 9.20a | 9.07a | 9.32a | 9.23a | 8.48b | 7.84c | 0.111 | 0.034 | 0.187 | 0.017 |
| 黄色瘤胃球菌 R. flavefaciens | 8.04c | 9.38a | 9.42a | 9.49a | 9.12ab | 9.01b | 8.93b | 0.082 | 0.016 | 0.436 | 0.022 |
产琥珀酸丝状杆菌 F. succinogenes | 10.6b | 10.6b | 10.7ab | 10.9a | 11.0a | 10.9a | 10.9a | 0.054 | 0.022 | 0.017 | 0.420 |
溶纤维丁酸弧菌 B. fibrisolvens | 8.36 | 8.40 | 8.45 | 8.48 | 8.47 | 8.47 | 8.46 | 0.031 | 0.151 | 0.172 | 0.259 |
栖瘤胃普雷沃氏菌 P. ruminicola | 9.07b | 9.27a | 9.23a | 9.27a | 9.38a | 9.30a | 9.34a | 0.022 | 0.007 | 0.018 | 0.354 |
嗜淀粉瘤胃杆菌 Rb. amylophilus | 10.6b | 10.6b | 10.8a | 10.8a | 10.9a | 10.8a | 10.9a | 0.015 | 0.009 | 0.030 | 0.479 |
), ArticleFig(id=1307281707258892398, tenantId=1146029695717560320, journalId=1306274286668972124, articleId=1307013650691150789, language=CN, label=表6, caption=
FA对体外瘤胃微生物数量的影响 (copies·mL-1)
, figureFileSmall=null, figureFileBig=null, tableContent=
项目 Item | FA添加水平/(mg·kg-1 DM) FA addition level | 标准误 SEM | P值 P-value |
|---|
| 0 | 1.5 | 3.0 | 4.5 | 6.0 | 7.5 | 9.0 | PT | PL | PQ |
|---|
| 总细菌 Total bacteria | 11.5c | 11.7b | 11.8ab | 12.0a | 11.9a | 11.9a | 11.7b | 0.038 | 0.003 | 0.035 | 0.204 |
| 总真菌 Total fungi | 7.29c | 7.48b | 7.60a | 7.62a | 7.63a | 7.63a | 7.34c | 0.061 | 0.007 | 0.312 | 0.042 |
| 总原虫 Total protozoa | 5.99b | 6.41a | 6.44a | 6.46a | 6.47a | 6.45a | 6.48a | 0.102 | 0.002 | 0.007 | 0.205 |
| 白色瘤胃球菌 R. albus | 7.91c | 9.20a | 9.07a | 9.32a | 9.23a | 8.48b | 7.84c | 0.111 | 0.034 | 0.187 | 0.017 |
| 黄色瘤胃球菌 R. flavefaciens | 8.04c | 9.38a | 9.42a | 9.49a | 9.12ab | 9.01b | 8.93b | 0.082 | 0.016 | 0.436 | 0.022 |
产琥珀酸丝状杆菌 F. succinogenes | 10.6b | 10.6b | 10.7ab | 10.9a | 11.0a | 10.9a | 10.9a | 0.054 | 0.022 | 0.017 | 0.420 |
溶纤维丁酸弧菌 B. fibrisolvens | 8.36 | 8.40 | 8.45 | 8.48 | 8.47 | 8.47 | 8.46 | 0.031 | 0.151 | 0.172 | 0.259 |
栖瘤胃普雷沃氏菌 P. ruminicola | 9.07b | 9.27a | 9.23a | 9.27a | 9.38a | 9.30a | 9.34a | 0.022 | 0.007 | 0.018 | 0.354 |
嗜淀粉瘤胃杆菌 Rb. amylophilus | 10.6b | 10.6b | 10.8a | 10.8a | 10.9a | 10.8a | 10.9a | 0.015 | 0.009 | 0.030 | 0.479 |
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