检索结果-南通市图书馆

Grassland-based ruminant farming systems in China: Potential, challenges and a way forward

Animal Nutrition 2022年第3期10卷 243-248页

作者： Xin Jiang Ling Wang Institute of Grassland Science Northeast Normal UniversityKey Laboratory of Vegetation EcologyMinistry of EducationJilin Songnen Grassland Ecosystem National Observation and Research StationChangchun130024China

With an increasing demand for high-quality,eco-friendly food products and growing concerns over ecological conservation,the development of ecology-based alternatives for ruminant production in China is urgently *** review discusses the capabilities for integrating grassland grazing into existing livestock farming systems to meet the contemporary human needs for high-quality foods and ecologically stable ***,this review provides a critical analysis of the challenges and future directions associated with grassland-based ruminant farming *** nutritional manipulation with grazing manipulation is critical for improving the productivity of grassland-based ecosystems and natural ecological *** is the primary determinant of grassland ecosystem functions,while the composition and function of rumen microbiomes determine ruminant production *** studies should focus on the following aspects:1)how livestock grazing regulates grassland biodiversity and the mechanisms of grassland biodiversity maintenance,offering an important scientific basis for guiding grazing manipulation practices,including grazing intensity,livestock types,and grazing management practices;to 2)characterize the microbial ecology within the rumen of grazing ruminants to offer clarified instruction for the nutritional manipulation of grazing *** recommendation includes creating a transdisciplinary system that integrates ecology,animal nutrition,and animal behavior to develop grassland-based ruminant farming systems sustainably,thereby achieving high-quality animal production and environmentally sustainable goals.

关键词： Ruminant nutrition Foraging behavior Grassland biodiversity grazing management Grassland multifunctionality Rumen microbe

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

grazing effects on the relationship between plant functional diversity and soil carbon sequestration regulated by livestock species

引用

Journal of Plant Ecology 2024年第5期17卷 5-16页

作者： Shiwen Ding Fons van der Plas Jie Li Bai Liu Man Xu Tongtong Xu Xiaobin Pan Qing Chang Ying Chen Yinong Li Institute of Grassland Science Key Laboratory of Vegetation Ecology of the Ministry of EducationJilin Songnen Grassland Ecosystem National Observation and Research StationNortheast Normal UniversityChangchun 130024China Plant Ecology and Nature Conservation Group Wageningen UniversityPO Box 476700 AA WageningenThe Netherlands Key Laboratory of Geographical Processes and Ecological Security in Changbai Mountains Ministry of EducationSchool of Geographical SciencesNortheast Normal UniversityChangchun 130024China Ecology and Biodiversity Group Utrecht UniversityHeidelberglaan 83584 CS UtrechtThe Netherlands

grazing exerts a profound influence on both the plant diversity and productivity of grasslands,while simultaneously exerting a significant impact on regulating grassland soil carbon ***,besides altering the taxonomic diversity of plant communities,grazing can also affect their diversity of functional ***,we still poorly understand how grazing modifies the relationship between plant functional diversity(FD)and soil carbon sequestration in grassland ***,we conducted a grazing manipulation experiment to investigate the effects of different grazing regimes(no grazing,sheep grazing(SG)and cattle grazing(CG))on the relationships between plant FD and soil carbon sequestration in meadow and desert *** findings showed that different livestock species changed the relationships between plant FD and soil organic carbon(SOC)in the meadow *** decoupled the originally positive relationship between FD and SOC,whereas CG changed the relationship from positive to *** the desert steppe,both SG and CG strengthened the positive relationship between FD and *** study illuminates the considerable impact of livestock species on the intricate mechanisms of soil carbon sequestration,primarily mediated through the modulation of various measures of functional trait *** ungrazed meadows and grazed deserts,maintaining high plant FD is conducive to soil carbon sequestration,whereas in grazed meadows and ungrazed deserts,this relationship may disappear or even *** measuring the traits and controlling the grazing activities,we can accurately predict the carbon sequestration potential in grassland ecosystems.

关键词： grassland ecosystem grazing management plant diversity plant functional traits soil carbon sequestration

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rangeland degradation assessment in Kyrgyzstan:vegetation and soils as indicators of grazing pressure in Naryn Oblast

引用

Journal of Mountain Science 2016年第9期13卷 1567-1583页

作者： HOPPE Franziska ZHUSUI KYZY Taalaigul USUPBAEV Adilet SCHICKHOFF Udo CEN Center for Earth System Research and Sustainability Institute of Geography Laboratory of "Flora" Institute for Biology and Pedology National Academy of Sciences of the Kyrgyz Republic

Rangelands occupy more than 80% of the agricultural land in Kyrgyzstan. At least 30% of Kyrgyz pasture areas are considered to be subject to vegetation and soil degradation. Since animal husbandry is the economic basis to sustain people＇s livelihoods, rangeland degradation presents a threat for the majority of the population. We present for the first time an ecological assessment of different pasture types in a remote area of the Naryn Oblast, using vegetation and softs as indicators of rangeland conditions. We analysed the current degree of utilization （grazing pressure）, the amount of biomass, soil samples, and vegetation data, using cluster analysis as well as ordination techniques. Winter pastures （kyshtoo） are characterized by higher pH values （average of 7.27） and lower organic matter contents （average of 12.83%） compared to summer pastures （dzailoo） with average pH values of 6.03 and average organic matter contents of 21.05%. Additionally, summer pastures show higher above- ground biomass, and higher species richness and diversity. Our results support the hypothesis that winter pastures, which are located near settlements, suffer from over-utilisation, while the more distant summer pastures are subjected to much lower grazing pressure,

关键词： Alpine meadows Alpine steppes Animalhusbandry Classification grazing management Montane pastures Ordination Plant communities

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Free-ranging livestock altered the spatiotemporal behavior of the endangered North Chinese leopard (Panthera pardus japonensis) and its prey and intensified human–leopard conflicts

引用

Integrative Zoology 2023年第1期18卷 143-156页

作者： Mingzhang LIU Yiqing WANG Fan XIA Hongliang BU Yanlin LIU Xiaoli SHEN Sheng LI Wildlife Ecology&Conservation Lab School of Life SciencesInstitute of EcologyPeking UniversityBeijingChina Chinese Felid Conservation Alliance BeijingChina State Key Laboratory of Vegetation and Environmental Change Institute of BotanyChinese Academy of SciencesBeijingChina

Widespread distribution of livestock in the natural habitats of large carnivores may negatively impact carnivore populations by reducing wild prey availability and increasing human–carnivore conﬂ*** this study,we used camera-trapping data collected in the temperate forests of the Taihang Mountains in North China during 2016–2019 to examine whether and how free-ranging cattle affected habitat use and Diel activity patterns of the endangered North Chinese leopard(Panthera pardus japonensis)and its 2 wild prey species,Siberian roe deer(Capreolus pygargus),and wild boar(Sus scrofa).Residents were also interviewed to record livestock depredation events by leopards during 2015–*** found that roe deer spatially avoided sites frequented by cattle,but wild boar did *** the growing seasons,leopards shared habitats with cattle and tended to increase their diurnal activities where cattle were *** 3 study species exhibitedﬁne-scale spatial-temporal segregation to *** selectively preyed on calves over adult cattle and livestock depredation frequency was positively correlated with the detection rates of cattle and wild prey,but not that of ***ﬁndings not only show that through behavioral adaption large carnivores and their ungulate prey may persist under livestock disturbance,but also highlight how important proper livestock management is for conserving North Chinese leopards in this *** enhance livestock management and mitigate human–leopard conﬂicts,we recommend speciﬁc actions,such as better guarding of free-ranging cattle or adoption of a captive farming system.

关键词： camera-trap diel activity pattern grazing management human–wildlife conﬂict large carnivore

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Improving bermudagrass in the Southeastern United States with alfalfa as an alternative nitrogen source in grazing systems

引用

Grassland Research 2022年第4期1卷 280-289页

作者： Justin C.Burt Lisa L.Baxter Christopher G.Prevatt Mary Kimberly Mullenix R.Lawton Stewart Jr. Jennifer J.Tucker Department of Animal and Dairy Science University of GeorgiaTiftonGeorgiaUSA Department of Crop and Soil Science University of GeorgiaTiftonGeorgiaUSA Regional Specialized Agent Range Cattle RECUniversity of FloridaGainesvilleFloridaUSA Department of Animal Science Auburn UniversityAuburnAuburnUSA Department of Animal and Dairy Science University of GeorgiaAthensGeorgiaUSA

Background Bermudagrass(Cynodon spp.)is one of the most common perennial warm-season forages grown in the Southeastern United *** incorporation of alfalfa(Medicago sativa)into bermudagrass pastures could serve as an alternative source of nitrogen(N)while also improving the nutritive value of the forage *** A 2-year grazing evaluation arranged in a randomized complete block design was conducted from May to September 2018(Year 1)and May–August 2019(Year 2)in Tifton,GA,*** objective was to compare the production of alfalfa–bermudagrass mixed pastures(BGA)with bermudagrass monoculture pastures with(BGN)or without(BG)the application of synthetic nitrogen on forage production and stocker cattle *** Differences were observed for average daily gain(p=0.10),gain per hectare(p=0.02)and stocking rate(p=0.01),in that BGA was greatest compared to BGN and BG,which did not differ from each ***,BGA had increased forage crude protein(p=0.01)and total digestible nutrients(p=0.01)compared to BGN and ***,BGA provided the greatest economic return per hectare compared to BG or *** These data illustrate improved animal performance and forage nutritive value using alfalfa–bermudagrass systems and offer a viable option for producers seeking alternatives to synthetic N sources for bermudagrass pastures in the Southeastern United States.

关键词： alfalfa-bermudagrass mixtures forage management grazing management

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

An Insight into Different Strategies for Control and Prophylaxis of Fasciolosis:A Review

引用

Journal of Advances in International Veterinary Research 2022年第1期4卷 5-14页

作者： Hafiz Muhammad Rizwan Muhammad Sohail Sajid Haider Abbas Sadia Ghazanfer Mamoona Arshad Section of Parasitology Department of PathobiologyKBCMA College of Veterinary and Animal SciencesNarowalSub-campus UVASLahorePakistan Department of Parasitology University of Agriculture FaisalabadPakistan Department of Epidemiology and Public Health University of Veterinary and Animal SciencesLahorePakistan

Fasciolosis is one of the important diseases of livestock and has zoonotic *** can cause huge economic losses due to decrease in milk and meat production,decreased feed conversion ratio,and cost of *** and prophylaxis strategies for Fasciola infection are formed based on epidemiological *** control of Fasciola infection can be attained by treating the animals with active *** use of different combinations of anthelmintics with a possible rotation is more effective against immature as well as adult *** of the intermediate host(snail)is vital for the reduction of *** to the rapid growth of snails,the eradication is quite difficult in waterlogged and marshy *** use of different grazing methods and treatment of grazing areas can also help to control fasciolosis.A variety of antigens generated by Fasciola *** been shown to protect against liver fluke *** crude antigens,excretory/secretory,and refined antigens and their combination can be used as prophylactic treatment for the control of *** use of any of the single or combination of these methods can be very effective for the control of fasciolosis.

关键词： Fasciolosis Control Chemotherapy grazing management Prophylactic treatment

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Structural Characteristics of Mulato Grass I under Different Cutting Heights

引用

American Journal of Plant Sciences 2014年第5期5卷 627-635页

作者： Leonardo Assis Dutra Fabianno Cavalcante de Carvalho Eneas Reis Leite Magno José Duarte Candido Joao Ambrósio de Araújo Filho Curso de Zootecnia Universidade Estadual Vale do AcaraúSobralBrazil Departamento de Zootecnia Universidade Federal do CearáFortalezaBrazil

This work aimed to evaluate the effects of different individual heights of cut on structural characteristics of Brachiaria hibrida cv. Mulato I in four periods of the year. The study was carried out at the Fazenda Experimental Vale do Acaraú, in Sobral, Ceará, Brazil, from January to December, 2008. The experimental design was a split plot, with the plots representing four pasture conditions through manual cuts of 10 cm, 20 cm, 30 cm and 40 cm heights, which were done every 30 days. Each treatment had three replications. The subplots were represented by four periods of evaluation: January-February-March, April-May-June, July-August-September and October-November-December. Fertilization was performed with 350 kg of N/ha, divided into monthly applications. Irrigation was conducted in alternate days during the dry season. The variables studied were: mean height before cutting (cm);dry matter content (%);total dry matter production (t/ha);percentage of leaves;percentage of stems;percentage of dead material;leaf blade/stem ratios;number of total leaves per tiller;number of live leaves per tiller;average size of leaves;and tiller density. Cutting at 10 cm caused a decrease in total dry matter production, underestimating the potential production. Cutting heights between 20 and 30 cm contributed positively to increase the total number of leaves, number of green leaves, average size of the leafs and total dry matter production. Under the present experimental conditions, cutting around 40 cm was not recommended because of a decreasing in the leaf/stem ratio and a increasing in stem fraction and dry matter content, compromising the structure of the canopy.

关键词： grazing management Leaf/Stem Ratio Tillers

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Brazilian Tropical Grassland Ecosystems: Distribution and Research Advances

引用

American Journal of Plant Sciences 2014年第7期5卷 924-932页

作者： Vitor Del’Alamo Guarda Renato Del’Alamo Guarda Brazilian Agricultural Research Corporation Embrapa Fisheries and AquaculturePalmasTocantinsBrazil Nuscience.Itupeva São PauloBrazil

A few decades ago we sought the understanding of the functioning of Brazilian ecosystems. During these years, changes in the way land use were influenced primarily by economic issues involving the process of valuation of land in different regions. Furthermore, developments in research have provided productive increments that were well characterized in some phases. This paper aims to trace a brief history of the distribution of grassland ecosystems in Brazil and show how it has been the advances in research on forages and pastures in the country, pointing its evolution, transition times and trends. Moreover, it purports to show a perspective of the dynamics of occupation of Brazilian territory by these ecosystems. The information is presented on three occasions, seeking to encourage understanding of where livestock grazing occurs and how the dynamics of occupation of the area was favored by the search. Also, it shows how the research was fundamental for Brazil occupy little arable areas considered, making the country one of the largest producers of cattle in the world.

关键词： Grassland Ecophysiology Cerrado grazing management Plant-Animal Relationship

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：