Magnesium calcium and energy
1 min read
Magnesium supplements can help prevent metabolic issues in your cows, such as milk fever and grass staggers. Start giving these supplements two to three weeks before calving and continue until spring pasture growth slows. Mixing it into the water supply alone might not be enough; consider dusting it onto pasture or silage too. Be mindful that dietary requirements will differ based on the cow's liveweight. After calving, ground limestone can help. Don't overfeed your cows and make sure to use starter drenches on high-risk cows at calving. Tailor feeding levels according to your cows' body condition scores (BCS).
Magnesium supplementation is an important tool to help prevent metabolic issues.
Following are some key points to aid in prevention of metabolic problems:
Cows that are at or above BCS targets should be fed at 90% of requirements for 2 to 3 weeks pre-calving, while cows that are below BCS targets should be fed at 100% of requirements.
|BCS below 5.0||BCS 5.0 and above|
|LWT||ME required||DMI required*||LWT||ME required||DMI required*|
|Mg requirement (% of diet)||Supplementary Mg (g/cow/day)|