Brian Reidy: Planning ahead to avoid grass tetany at spring turnout

At turnout, the most important thing to monitor is grass intake and rumen fill, writes ruminant nutritionist Brian Reidy.
I plan to get cows and calves out at home over the coming weekend. The farm was blanket spread with 30 units of nitrogen last week and all of the fencing has been updated.
Even with plenty of feed in front of them, my cows have been asking me to open up the shed door and let them out over the last week as they look out at the nice weather.