Progress in grazing management of dairy cows by using the Grazemore DSS
Introduction Grazemore DSS is a decision support system ( DSS) developed to improve the use of grazed grass in dairy production ( Hetta et al.,2004 ).The software consists of a herbage growth model ( HGM ) (Barrett,Laidlaw & Mayne,2004) and a herbage intake model ( HIM ) ( Delagarde et al.,2004 ) which predicts herbage intake and milk yield as daily averages for the herd during the residence time in individual paddocks.The HGM predicts herbage growth for individual paddocks (kg DM/day) based on information on average day temperature ( ℃ ),precipitation (mm) and photosynthetic active radiation ( PAR,MJ/m2 ).Meteorological institutes can provide farmers with advanced weather forecasts where these parameters are predicted in numbers on a daily base.The aim with this study was to investigate the possibilities to improve the grazing management supported by the Grazemore DSS in combination with advanced weather forecasts.
software advanced weather forecasts herbage utilisation milk production
Marten Hetta Linda Karlsson Evelina Larsson Harry Eriksson Kjell Martinsson
Dept.of Agricultural Research for Northern Sweden,Swedish University of Agricultural Science,904 03 Umea,Sweden
国际会议
呼和浩特
英文
2008-06-29（万方平台首次上网日期，不代表论文的发表时间）