Hello, my name is Duncan Anderson, and we converted our farm to dairy in 2013. We have a large herd and had a problem with lameness.
In 2015 we had to form a new stretch of lane to a access property which we lease. A river run base was formed, and because the rotten rock was hard to get a finish on, we thought we would try Amuri ag. lime. This proved to be a success on this piece of lane, and gave us the confidence to use it extensively on our main lanes.
After dryoff in 2016, we graded off the lane, removing crust and effluent, vibration rolled the sharp edges of the rotten rock down, and then applied Amuri ag. lime to the lane, 750 metres either side of the dairy shed, the high traffic area. The lime was spread by truck and trailer, and graded out over the lane to a thickness of 25-30mm, then given a light vibration roll. The key is to keep stock off the lane for as long as possible, letting the weather do the rest of the job. This is difficult to do, and as the season progresses, the lime moves everywhere; to the yard, the effluent pond and over the paddocks. In our case, over a period of 2-3 months at full on traffic, the Amuri ag. lime settled down and hardened to a great finish.
The best part was reducing lameness by 40%.
In 2017 we repeated the same process, extending further away from the dairy shed. A lesser volume was required, as 10-20mm remained from the previous year. We have found Amuri ag. lime works for us. It is not a silver bullet to lameness, but it has helped.
It does move around, which is frustrating. It does get slippery and
sloppy in bad weather to begin with, but it does settle down & stays in
place in the end. It has been a cost effective way for us to recap our
lanes and has helped us to solve some of our lameness problem.