Dealing with fevers, supplements and calmag
Frequently asked questions about dry cow feeding.
Q What type of supplement should I feed with silage if cows are in poor condition?
A Energy is needed for body condition gain, not protein. Rolled barley will suffice. Avoid high calcium supplements.
Q I am having problems with sub-clinical milk fever. Will additional magnesium help?
A Yes, additional magnesium may help alleviate the problem. The target magnesium intake in this situation is 22-25g of magnesium per day.
If cows are getting a standard pre-calver supplying 15g of magnesium, the additional 10g of magnesium can be supplied by feeding 20g of calmag or 30g of sweetened calmag.
Q Does calmag have calcium in it?
A No. Calcined magnesite is a source of magnesium, not calcium. Calcined is simply the process it undergoes to reduce it to a powder.