New Zealand Journal of Agricultural Research abstracts

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Pasture production in Northern Spain dairy systems

R. MOSQUERA-LOSADA

Departamento de Producción Vegetal
Escuela Politécnica Superior de Ingenieros
Agrónomos
Universidade de Santiago de Compostela
Campus de Lugo
27002 Lugo, Spain

A. GONZÁLEZ-RODRÍGUEZ

Agrarian Research Centre of Mabegondo
Apdo. 10-15080
A Coruña, Spain

Abstract  The effects of different grazing pressures on growth rate and net pasture production over three years were evaluated on two different dairy cow systems and two stocking rates. The two systems were: grassland for grazing and silage at 2.5 cow ha^-1 (Treatment A) and grassland for grazing plus a maize/rye rotation for silage at two stocking rates: 2.5 cow ha^-1 (Treatment B) and 3.0 cows ha^-1 (Treatment C). Contrasting growth patterns of pasture were found in the three years because of different precipitation and temperature distributions. The introduction of crops into dairy systems resulted in an increase of stocking rate which modified pasture parameters. Stocking rate negatively affected instantaneous growth rate and net pasture production when the differences between treatments were relatively large.

Keywords  stocking rate; net pasture production; growth rate

New Zealand Journal of Agricultural Research, 1999, Vol. 42: 125-132

0028-8233/99/4202-0125 $7.00/0 (c) The Royal Society of New Zealand 1999

PDF file of entire paper: medium quality (575K); (scanned from paper original: notes about this process)

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