Results 171 to 180 of about 14,569 (230)

To graze or not to graze, thats the question [PDF]

Johansen, A., Kennedy, E., Pol, A., van den, Vellinga, Th.V.   +3 more
core  

Short-term milk yield adaptation to changes in post-grazing sward height

, 2013
Ganche, Elodie, Delaby, Luc, O'Donovan, Michael, Boland, T.M., Kennedy, Emer   +4 more
openaire   +2 more sources

Environmental drivers of tick density in UK dairy farms: implications for livestock health and agri-environment policy

Shanks S, Duncan J, Johnson N, Hassall R, Purse BV, Millins C.   +5 more
europepmc   +1 more source

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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

Does post‐grazing sward height influence sward characteristics, seasonal herbage dry‐matter production and herbage quality?

Grass and Forage Science, 2014
AbstractExtending the grazing season through the production and utilization of high‐quality forage is a key objective in grassland‐based dairy production systems. Grazing swards to a low post‐grazing sward height (PGSH) is a strategy for improving grass utilization. A grazing experiment conducted in Ireland investigated immediate and subsequent effects
Ganche, Elodie, O'Donovan, M., Delaby, Luc, Boland, T., Kennedy, E.   +4 more
openaire   +2 more sources

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