To work out how many silage bags you need, multiply the number of cows by the days you will feed silage and the kilos each cow eats per day, then divide by the bag capacity. An AgroZ Black & White bag holds about 350–400 kg and a Silver bag about 200–250 kg of well-compacted silage. Enter your numbers below.
Silage bag calculator
Frequently asked questions
How much silage does a dairy cow eat per day?
A dairy cow on a silage-based ration typically eats about 15–25 kg of silage a day, depending on her size, milk yield and what else she is fed. Heifers and dry cows eat less.
How many silage bags do I need for one cow for three months?
At 20 kg a day, one cow needs about 1,800 kg of silage for 90 days – about 5 AgroZ bags or 8 Silver bags.
Which silage bag is better, AgroZ or Silver?
AgroZ Black & White bags hold more (350–400 kg) and have a UV-resistant white outer and black inner layer; Silver bags (200–250 kg) are the cheaper reusable option. See the silage bags price comparison.
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