Managing through a difficult spring
Mark Treacy advises on managing challenging spring weather conditions on farm by focusing on cow condition, feed stocks, and grassland management.
Weather conditions continue to make this an extremely challenging spring. One thing we can be sure of is conditions will improve at some stage. For now aim to minimise the negative effects of these conditions on your farm and herd. The key areas to focus on are cow condition, feed stocks and grassland management.
As cows approach peak yield it becomes more and more difficult to satisfy the energy requirements of these animals without a substantial quantity of grass in their diet, therefore taking every opportunity to graze when possible is vital. Continue to use on/off grazing and spur roadways to increase opportunities for grazing.
Where the energy demands of the cow are not satisfied it is inevitable that body condition score (BCS) will suffer as the cow uses the fat off her back to supply the additional energy required. Monitor BCS regularly as losing more the 0.5 of a condition score between calving and breeding has been shown to have a very strong negative effect on fertility. The gradual loss of body condition in the herd often goes unnoticed when you are looking at the same herd every day. Asking another person to take a quick look at the herd can be beneficial to overcome this issue.
Feeding excessive levels of protein in the diet is likely to increase the risk of excessive BCS loss. In situations where cows are regularly grazing both day and night 14% crude protein rations are more than sufficient. Increase the crude protein level to 16% where cows are only grazing by day. The use of rations greater than 16% crude protein will only be required where cows are indoors fulltime, or where alternative low protein feeds such are beet or maize are being fed.
Silage stocks are becoming extremely tight on many farms. Assess stocks now, and where tight look to source additional supplies while they are still available. Existing silage stocks can be stretched by feeding fibre sources such as soya hulls as a 3rd feed in the middle of the day.
The application of nitrogen fertiliser has been severely impacted by the poor weather conditions this spring. An application of 40 units per acre of protected urea should be applied to all paddocks which did not receive fertiliser N or slurry applications yet in March once conditions allow. If fertiliser is not already in your yard source now to avoid delays when conditions improve.