Type

Report

Authors

Padraig O'Kiely
Edward G. O'Riordan
James Humphreys

Subjects

Agriculture & Food Science

Topics
grass silage beef production ireland grassland management systems nutritive value intake grazed grass beef cattle

Maximising Annual Intake of Grazed Grass for Beef Production. (2001)

Abstract Grass is by far the most important crop grown in Ireland.Well-managedgrassland supports high levels of animal performance, and theproduction of high quality produce. Grazed grass is a relatively cheapfeed source for beef production (O'Kiely, 1994). Grazed grass doesnot always match feed requirements in efficient beef production systems.Supply tends to exceed demand in the late spring and summerwhereas deficiencies in feed supply occur in late autumn and duringthe winter and early spring. The objective of the present series ofexperiments was to examine the potential to increase the utilizationof grazed grass in beef production systems.There are two aspects tothis: one relates to the utilization of grass in situ; the second relatesto the strategic approach to grass utilization, i.e. matching feedrequirements with supply of grazed grass and silage conservationduring the year.The first two experiments presented in this report examine the utilizationof grass in situ. The effects of pre-grazing pasture mass andnitrogen (N) fertilization on the production and subsequently the utilizationand digestibility of the grass under grazing by cattle wereexamined. A third experiment and examines the effect of pre-grazingpasture mass on performance of beef cattle during a grazing season.The fourth experiment investigates the role of perennial ryegrasscultivars in supplying grass for grazing during the spring, and for theproduction of high nutritive value first cut silage.
Collections Ireland -> Teagasc -> AGRIP End of Project Reports
Ireland -> Teagasc -> Teagasc End-of-Project Reports

Full list of authors on original publication

Padraig O'Kiely, Edward G. O'Riordan, James Humphreys

Experts in our system

1
Padraig O'Kiely
Teagasc
Total Publications: 71
 
2
Edward G. O'Riordan
Teagasc
Total Publications: 30
 
3
James Humphreys
Teagasc
Total Publications: 28