Results 311 to 320 of about 1,089,204 (358)

Seasonal alteration in sward height of Marandu palisade grass (Brachiaria brizantha) pastures managed by continuous grazing interferes with forage production

Crop and Pasture Science, 2020
. Changes in sward height of pastures managed by continuous grazing according to climatic seasonality may alter tillering and forage production. In order to evaluate the feasibility of seasonal alteration in sward height of Marandu palisade grass ...
S. Terra, Flavia Maria de Andrade Gimenes, A. Giacomini, L. Gerdes, M. Manco, Waldssimiler Teixeira de Mattos, Karina Batista   +6 more
semanticscholar   +1 more source

Precision and accuracy of sward height distributions

African Journal of Range & Forage Science, 1999
Double normal distributions can be used to resolve many sward height frequency distributions into two components representing the 'short' (patches) and 'tall' (non∼patches) areas in the sward. The effect of sample size on the precision and accuracy of parameters of sward height distributions was examined by drawing sub-samples (n=10) of increasing ...
C.D. Morris, P.J.K. Zacharias, J.F. Derry   +2 more
openaire   +1 more source

Frequency distributions of sward height under sheep grazing

Grass and Forage Science, 2005
AbstractCattle and sheep can create and maintain a mixture of relatively tall and short patches in grass swards through selective grazing. In swards that are grazed by cattle this heterogeneous structure can result in the frequencies of height measurements having a skewed distribution that has variously been better described by the double‐normal ...
G. T. Barthram, E. I. Duff, D. A. Elston, J. H. Griffiths, T. G. Common, C. A. Marriott   +5 more
openaire   +1 more source

Sward height controlled by ewe and lamb grazing

Proceedings of the British Society of Animal Production (1972), 1986
Previous work has shown that a sward height of 3-5 cm for sheep is the most efficient way of maintaining a balance between new .growth and decayed material. An unreplicated experiment was carrried out during 1985 using 77 cross-bred ewes and their Suffolk x twin lambs to graze a perennial ryegrass sward (Lolium perenne) cv Wendy between 29 April and 22
Margaret S Griffiths, C James
openaire   +1 more source

Influence of sward height on bite dimensions of horses

Animal Science, 2003
AbstractThe management of pastures used by horses poses various problems: swards are often grazed down rapidly, patches of bare ground and refused areas develop. In order to gain a better understanding of the plant-animal interaction behind this problem the influence of sward height on bite dimensions (bite depth, weight, volume, area) of horses was ...
A. Naujeck, J. Hill
openaire   +1 more source

Effects of cattle grazing, sheep grazing, cutting and sward height on a grass-white clover sward

The Journal of Agricultural Science, 1981
SUMMARYThirteen defoliation treatments were applied to a grass-white clover sward for 2 years to study some effects on the sward of cattle grazing compared with sheep grazing compared with various cutting treatments and to study the effect of height of defoliation.Sheep actively sought out the clover in preference to grass whereas the cattle did not ...
V. M. Briseño De La Hoz, D. Wilman
openaire   +1 more source

The effect of sward height on responses of mini‐swards of perennial ryegrass/white clover to slurry application

Grass and Forage Science, 1997
The influence of sward height at the time of slurry application on sward responses to slurry was investigated using perennial ryegrass (Lolium perenne)/white clover (Trifolium repens) mini‐swards under greenhouse conditions. Pig slurry, cattle slurry and a fertilizer control were applied either to: swards cut 1 d before slurry application to heights of
Wightman, PS, Franklin, MF, Younie, D
openaire   +2 more sources

Performance of a summer lambing flock grazing clover rich swards maintained at two sward surface heights

Proceedings of the British Society of Animal Production (1972), 1991
There is increasing interest in the development of later lambing systems for crossbred ewes which more closely match ewe nutritional requirements with grass growth (Stone, 1988). Lambing a proportion of the flock during summer potentially ensures a better continuity of lamb supply but the superior growth rate of summer born lambs dictates that ...
Linda M Mitchell, Margaret E King, C.K. Mackie   +2 more
openaire   +1 more source

Sward Height and a Capacitance Probe for Estimating Herbage Mass

Journal of Agronomy and Crop Science, 1990
AbstractEstimation of herbage mass is essential in pasture research and in making practical grazing management decisions. Sward height and a capacitance probe were evaluated as non‐destructive measures of herbage mass at seven dates from April 16 to July 30 on continuously grazed predominantly Kentucky bluegrass (Poa pratensis L.) pasture.
W. B. Bryan, W. V. Thayne, E. C. Prigge
openaire   +1 more source

Ewe and lamb performance on perennial ryegrass and perennial ryegrass plus white clover swards under controlled sward heights

Proceedings of the British Society of Animal Production (1972), 1989
Lamb performance at grass falls in July/August on upland farms. Allowing sward height to rise has been recognised as having an amoreilating effect. The objective of this trial was to determine the influence of both sward quantity (sward height) and sward quality (sward type) on ewe and lamb performance from mid April to September.
J.E. Vipond, G. Swift, J. FitzSimons, T.H. McClelland, J.A. Milne, E.A. Hunter   +5 more
openaire   +1 more source