Article(id=1297139275183714870, tenantId=1146029695717560320, journalId=1296801528146919473, issueId=1297139249468433079, articleNumber=null, orderNo=null, doi=10.12377/1671-4393.26.05.04, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1787191702885, onlineDateStr=2026-08-20, pubDate=1779638400000, pubDateStr=2026-05-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1787191702885, onlineIssueDateStr=2026-08-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1787191702885, creator=13701087609, updateTime=1787191702885, updator=13701087609, issue=Issue{id=1297139249468433079, tenantId=1146029695717560320, journalId=1296801528146919473, year='2026', volume='', issue='5', pageStart='2', pageEnd='144', issueExtLink='null', onlineDate='null', pubDate='1779638400000', pubDateStr='2026-05-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1787191696754, creator='13701087609', updateTime=1787192231935, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1297141494226383122, tenantId=1146029695717560320, journalId=1296801528146919473, issueId=1297139249468433079, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1297141494226383123, tenantId=1146029695717560320, journalId=1296801528146919473, issueId=1297139249468433079, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=24, endPage=29, ext={EN=ArticleExt(id=1297139275406012983, articleId=1297139275183714870, tenantId=1146029695717560320, journalId=1296801528146919473, language=EN, title=Lanzhou Dairy Farm DHI Data Comparative Analysis and Management Optimization Recommendations, columnId=1297134029740995352, journalTitle=China Dairy, columnName=FEEDING MANAGEMENT, runingTitle=null, highlight=null, articleAbstract=
[Objective]

This study focused on two large-scale dairy farms in the Lanzhou region, targeting key indicators of dairy cow production performance. By systematically analyzing Dairy Herd Improvement (DHI) data, this study aimed to investigate the variation patterns of milk composition, milk urea nitrogen (MUN), somatic cell count (SCC), peak milk yield, and days to peak yield, clarify the main influencing factors, and provide data-driven support and practical guidance for precision feeding management on dairy farms.

[Method]

A total of 30 consecutive DHI test records from January 2022 to December 2024 were collected from the two farms. Descriptive statistics and trend analyses were performed using SPSS 26.0 software. Combined with farm management logs (including records on diet formulation, immunization and health care, environmental regulation, etc.), the driving factors behind changes in each indicator were comprehensively analyzed to ensure scientific reliability of the results.

[Result]

Milk composition was jointly influenced by dietary adjustments and genetic improvements. Farm A exhibited significant fluctuations in milk fat percentage due to modifications in feed formula, while Farm B achieved progressive annual increases in milk protein percentage through optimized protein supplementation and breeding enhancements. Both farms significantly reduced SCC values by improving barn environments and standardizing milking procedures. MUN levels remained generally stable, though energy-nitrogen balance during peak lactation requires attention. Peak milk yield showed a steady increasing trend, days to peak yield gradually decreased, and overall feeding management levels continued to improve.

[Conclusion]

Through systematic analysis of three-year DHI data, this study identified the variation characteristics and key influencing factors of production performance indicators on large-scale dairy farms in the Lanzhou region. The targeted management recommendations provided can serve as an important reference for controlling feed costs, improving milk quality, and optimizing feeding management models on dairy farms.

, authors=Fuming SHI1, Taibiao ZHANG2, Baoxia ZHU3, Shilin YANG1, authorsList=Fuming SHI, Taibiao ZHANG, Baoxia ZHU, Shilin YANG, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1297139275754140216, articleId=1297139275183714870, tenantId=1146029695717560320, journalId=1296801528146919473, language=CN, title=兰州奶牛场DHI数据对比分析及管理优化建议, columnId=1297134031582294810, journalTitle=中国乳业, columnName=饲养管理, runingTitle=null, highlight=null, articleAbstract=
[目的]

以兰州地区两规模化奶牛场为研究对象,聚焦奶牛生产性能测定(DHI)关键指标,旨在通过系统分析DHI检测数据,探究乳成分、乳中尿素氮、体细胞数、高峰奶量及高峰日的变化规律,明确其主要影响因素,为奶牛场精细化饲养管理提供数据支撑与实践指导。

[方法]

收集两牧场2022—2024年连续30 次DHI检测数据,采用SPSS 26.0软件进行描述性统计与趋势分析,结合牧场管理日志(日粮配方、免疫保健、环境调控等记录),综合剖析各指标变化的驱动因素,确保分析结果科学可靠。

[结果]

乳成分受日粮调整与遗传改良双重影响,牧场A因饲料配方变动导致乳脂率波动较大,牧场B通过优化蛋白供给与育种改良实现乳蛋白率逐年提升;两牧场通过改善牛舍环境、规范挤奶操作,体细胞数显著下降;乳中尿素氮整体维持稳定,但泌乳高峰期需关注日粮能氮平衡问题;两牧场高峰奶量呈稳步提升趋势,高峰日逐步提前,饲养管理水平持续优化。

[结论]

本研究通过对三年DHI数据的系统解析,明确了兰州地区规模化奶牛场生产性能指标的变化特征及关键影响因素,提出的针对性管理建议,可为奶牛场控制饲料成本、提升乳品质、优化饲养管理模式提供重要的参考依据。

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施福明(1985-),男,甘肃皋兰人,本科,助理畜牧师,研究方向为奶牛营养与牧场管理

张泰彪(1989-),男,甘肃白银人,本科,助理畜牧师,研究方向为奶牛营养与牧场管理

朱宝霞(1990-),女,甘肃静宁人,本科,助理畜牧师,研究方向为奶牛营养与牧场管理

杨世林(1991-),男,甘肃定西人,本科,助理畜牧师,研究方向为奶牛营养与牧场管理。

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杨世林(1991-),男,甘肃定西人,本科,助理畜牧师,研究方向为奶牛营养与牧场管理。

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兰州奶牛场DHI数据对比分析及管理优化建议
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施福明 1 , 张泰彪 2 , 朱宝霞 3 , 杨世林 1
中国乳业 | 饲养管理 2026,(5): 24-29
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中国乳业 |饲养管理 2026 , (5) : 24 -29
兰州奶牛场DHI数据对比分析及管理优化建议
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施福明(1985-),男,甘肃皋兰人,本科,助理畜牧师,研究方向为奶牛营养与牧场管理

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朱宝霞(1990-),女,甘肃静宁人,本科,助理畜牧师,研究方向为奶牛营养与牧场管理

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朱宝霞(1990-),女,甘肃静宁人,本科,助理畜牧师,研究方向为奶牛营养与牧场管理

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杨世林(1991-),男,甘肃定西人,本科,助理畜牧师,研究方向为奶牛营养与牧场管理。

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杨世林(1991-),男,甘肃定西人,本科,助理畜牧师,研究方向为奶牛营养与牧场管理。

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施福明1, 张泰彪2, 朱宝霞3, 杨世林1
作者信息
  • 1.兰州牧工商有限责任公司,甘肃 兰州 730030
  • 2.甘肃荷斯坦奶牛繁育示范中心,甘肃 兰州 730080
  • 3.兰州牧工商有限责任公司新区牧场,甘肃 兰州 730300
作者简介:

施福明(1985-),男,甘肃皋兰人,本科,助理畜牧师,研究方向为奶牛营养与牧场管理

张泰彪(1989-),男,甘肃白银人,本科,助理畜牧师,研究方向为奶牛营养与牧场管理

朱宝霞(1990-),女,甘肃静宁人,本科,助理畜牧师,研究方向为奶牛营养与牧场管理

杨世林(1991-),男,甘肃定西人,本科,助理畜牧师,研究方向为奶牛营养与牧场管理。

Lanzhou Dairy Farm DHI Data Comparative Analysis and Management Optimization Recommendations
Fuming SHI1, Taibiao ZHANG2, Baoxia ZHU3, Shilin YANG1
Affiliations
  • 1.Lanzhou Animal Husbandry & Commerce Co., Ltd., Lanzhou Gansu 730030
  • 2.Gansu Holstein Dairy Cattle Breeding Demonstration Center, Lanzhou Gansu 730080
  • 3.New Area Dairy Farm, Lanzhou Animal Husbandry & Commerce Co., Ltd., Lanzhou Gansu 730300
出版时间: 2026-05-25 doi: 10.12377/1671-4393.26.05.04
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[目的]

以兰州地区两规模化奶牛场为研究对象,聚焦奶牛生产性能测定(DHI)关键指标,旨在通过系统分析DHI检测数据,探究乳成分、乳中尿素氮、体细胞数、高峰奶量及高峰日的变化规律,明确其主要影响因素,为奶牛场精细化饲养管理提供数据支撑与实践指导。

[方法]

收集两牧场2022—2024年连续30 次DHI检测数据,采用SPSS 26.0软件进行描述性统计与趋势分析,结合牧场管理日志(日粮配方、免疫保健、环境调控等记录),综合剖析各指标变化的驱动因素,确保分析结果科学可靠。

[结果]

乳成分受日粮调整与遗传改良双重影响,牧场A因饲料配方变动导致乳脂率波动较大,牧场B通过优化蛋白供给与育种改良实现乳蛋白率逐年提升;两牧场通过改善牛舍环境、规范挤奶操作,体细胞数显著下降;乳中尿素氮整体维持稳定,但泌乳高峰期需关注日粮能氮平衡问题;两牧场高峰奶量呈稳步提升趋势,高峰日逐步提前,饲养管理水平持续优化。

[结论]

本研究通过对三年DHI数据的系统解析,明确了兰州地区规模化奶牛场生产性能指标的变化特征及关键影响因素,提出的针对性管理建议,可为奶牛场控制饲料成本、提升乳品质、优化饲养管理模式提供重要的参考依据。

规模化奶牛场  /  DHI检测  /  乳成分  /  乳中尿素氮  /  体细胞数  /  高峰奶量  /  西北干旱区  /  养殖管理
[Objective]

This study focused on two large-scale dairy farms in the Lanzhou region, targeting key indicators of dairy cow production performance. By systematically analyzing Dairy Herd Improvement (DHI) data, this study aimed to investigate the variation patterns of milk composition, milk urea nitrogen (MUN), somatic cell count (SCC), peak milk yield, and days to peak yield, clarify the main influencing factors, and provide data-driven support and practical guidance for precision feeding management on dairy farms.

[Method]

A total of 30 consecutive DHI test records from January 2022 to December 2024 were collected from the two farms. Descriptive statistics and trend analyses were performed using SPSS 26.0 software. Combined with farm management logs (including records on diet formulation, immunization and health care, environmental regulation, etc.), the driving factors behind changes in each indicator were comprehensively analyzed to ensure scientific reliability of the results.

[Result]

Milk composition was jointly influenced by dietary adjustments and genetic improvements. Farm A exhibited significant fluctuations in milk fat percentage due to modifications in feed formula, while Farm B achieved progressive annual increases in milk protein percentage through optimized protein supplementation and breeding enhancements. Both farms significantly reduced SCC values by improving barn environments and standardizing milking procedures. MUN levels remained generally stable, though energy-nitrogen balance during peak lactation requires attention. Peak milk yield showed a steady increasing trend, days to peak yield gradually decreased, and overall feeding management levels continued to improve.

[Conclusion]

Through systematic analysis of three-year DHI data, this study identified the variation characteristics and key influencing factors of production performance indicators on large-scale dairy farms in the Lanzhou region. The targeted management recommendations provided can serve as an important reference for controlling feed costs, improving milk quality, and optimizing feeding management models on dairy farms.

large-scale dairy farm  /  DHI testing  /  milk composition  /  milk urea nitrogen  /  somatic cell count  /  peak milk yield  /  arid region of Northwest China  /  feeding management
施福明, 张泰彪, 朱宝霞, 杨世林. 兰州奶牛场DHI数据对比分析及管理优化建议. 中国乳业, 2026 , (5) : 24 -29 . DOI: 10.12377/1671-4393.26.05.04
Fuming SHI, Taibiao ZHANG, Baoxia ZHU, Shilin YANG. Lanzhou Dairy Farm DHI Data Comparative Analysis and Management Optimization Recommendations[J]. China Dairy, 2026 , (5) : 24 -29 . DOI: 10.12377/1671-4393.26.05.04

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doi: 10.12377/1671-4393.26.05.04
  • 首发时间:2026-08-20
  • 出版时间:2026-05-25
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    1.兰州牧工商有限责任公司,甘肃 兰州 730030
    2.甘肃荷斯坦奶牛繁育示范中心,甘肃 兰州 730080
    3.兰州牧工商有限责任公司新区牧场,甘肃 兰州 730300
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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