In this week’s Beef round-Up, we are turning our attention to silage supplies. Do you know how to calculate your silage requirements? Use the guidelines below to draft an estimate for your farm and livestock.
We are singling out the different age groupings in order to determine their total requirements.
For a suckler cow
No of cows x No of months x Tonnes per month = Total Required
20 cows x 3 months (Turnout 1st April) x 1.4 tonnes = 84 tonnes of silage required.
No of weanlings x No of months x Tonnes per month = Total Required
25 weanlings x 3 months (Turnout 1st April) x 0.7 tonnes= 52.5 tonnes of silage required.
No of animals x No of months x Tonnes per month = Total Required
10 cattle x 3 months (Turnout 1st April) x 1.3 tonnes = 39 tonnes of silage required.
We need to see how much is left in the silage pit or in the bales or both for consumption.
For the silage pit you need to measure the length, height, and width, in metres, then do the following calculation:
Length(m) x height(m) x width(m)
1.4 = Amount left in tonnes
For baled silage the following calculation will work out the tonnes of silage available to you:
No. of bales x 600kg (or 700kg for well-packed bales) = amount left in tonnes
A number of options can be considered if supplies dwindle on your farm:
1. Increase concentrates – Reduces the need for extra silage.
2. Purchase more silage.
3. Sell stock.