CSR is defined as the amount of liveweight per ha creating feed demand and the annual feed available to meet that demand (kg Lwt/tDM). The optimum CSR level for achieving an appropriate combination of milksolids (MS) production per cow, MS production per hectare and profitability is currently between 75 and 80.
CSR can be used to compare across dairy farms, dairy farm systems and regions as it takes account of differences in location (grass growth potential), system (amount of supplement used) and cow liveweight.
The accuracy of the calculated CSR is dependent on the information used. Farm monitoring of annual pasture production, quantities of imported feed and cow live weight will lead to a more accurate result than using generic local data.
To calculate the CSR for your farm, and determine the effect stocking rate has on your farm efficiency and profitability use the Comparative Stocking Rate form below.