Cows graze out square areas better, they tend to walk around more and leave grass behind in long, narrow paddocks. Use a back-fence to ensure cows are only on an area for one grazing. Damage, if it occurs, will be restricted to a small area. Also, it is important to protect re-growth, as with restricted access cows will be on paddocks two to three times longer then normal. Leave the cows out for only three hours.
Most damage occurs when the cows have finished grazing.
Tetany Control Cows cannot mobilise magnesium readily from body reserves such as bone. As lush spring grass is low in magnesium another source of magnesium must be made available to the herd. Where milk yields justify concentrate feeding, then this is the most effective method for providing supplementary magnesium Pasture dusting with finely ground calcined magnesite . Half the rate can be used if using day and night paddocks or strip grazing. Dusting is best carried out when the grass is damp e.g. covered in dew.