Results 21 to 30 of about 16,324 (341)

The Usefulness of Mixtures with Festulolium braunii for the Regeneration of Grassland under Progressive Climate Change

open access: yesAgriculture, 2021
The climate warming and changes in weather patterns in Europe are negatively affecting the structure of grassland swards. The disappearance of valuable forage grasses can be observed. Therefore, in order to keep grassland productivity high, high-yielding
Teodor Kitczak   +3 more
doaj   +1 more source

Sward structural resistance and biting effort in grazing ruminants [PDF]

open access: yesAnimal Research, 2003
Grazing ruminants face complex decisions in searching for and harvesting adequate forage to meet their requirements in the face of heterogeneity in the abundance, nutritive value and distribution of resources. Some of the major decisions which affect the bite mass and therefore, forage intake adjustments in bite depth, bite area and exerted bite force,
Griffiths, Wendy M., Gordon, Iain J.
openaire   +3 more sources

Tillering and forage accumulation in Marandu grass under different grazing intensities

open access: yesRevista Ceres, 2011
Studies of plant responses to defoliation are important to develop pasture management strategies. The objective of this study was to evaluate the population density of basal, aerial and reproductive tillers, tiller appearance and mortality rates, forage ...
Maria Paula Cavuto Abrão Calvano   +6 more
doaj   +1 more source

Structural characteristics of marandu palisadegrass swards subjected to continuous stocking and contrasting rhythms of growth Características estruturais de pastos de capim-marandu submetidos à lotação contínua e ritmos de crescimento contrastantes

open access: yesScientia Agricola, 2010
The concept of sward target has been used recently to characterise grazing management practices, but its efficiency to monitor and control sward structure questioned since it corresponds to a single sward structural feature, usually sward surface height.
Priscila de Mesquita   +6 more
doaj   +1 more source

The use of frequency estimates in studying sward structure

open access: yesGrass and Forage Science, 1992
AbstractEstimates of the frequency of absence of rooted perennial ryegrass tiller bases from concentric sampling quadrats of different sizes are recommended for characterizing the open space structure of perennial ryegrass swards. It is proposed that these estimates are useful for evaluating the persistence of grass species and cultivars in swards ...
Neuteboom, J.H.   +2 more
openaire   +3 more sources

Mapping and Monitoring of Biomass and Grazing in Pasture with an Unmanned Aerial System

open access: yesRemote Sensing, 2019
The tools available to farmers to manage grazed pastures and adjust forage demand to grass growth are generally rather static. Unmanned aerial systems (UASs) are interesting versatile tools that can provide relevant 3D information, such as sward height ...
Adrien Michez   +7 more
doaj   +1 more source

Can Low-Cost Unmanned Aerial Systems Describe the Forage Quality Heterogeneity? Insight from a Timothy Pasture Case Study in Southern Belgium

open access: yesRemote Sensing, 2020
Applied to grazing management, unmanned aerial systems (UASs) allow for the monitoring of vegetation at the level of each individual on the pasture while covering a significant area (>10 ha per flight).
Adrien Michez   +5 more
doaj   +1 more source

A comparison of two rotational stocking strategies on the foraging behaviour and herbage intake by grazing sheep

open access: yesAnimal, 2020
An understanding of the processes involved in grazing behaviour is a prerequisite for the design of efficient grassland management systems. The purpose of managing the grazing process is to identify sward structures that can maximize animal forage daily ...
J.V. Savian   +6 more
doaj   +1 more source

Effects of ivermectin residues on dung invertebrate communities in a UK farmland habitat [PDF]

open access: yes, 2013
1.Ivermectin is a broad-spectrum antiparasitic drug, routinely administered to livestock worldwide, and concerns have been raised about its impacts on non-target dung fauna and pasture systems. This study reports the effect of sward structure (long sward,
Bateman, Mark   +2 more
core   +1 more source

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