WHICH COWS ARE AT RISK?
ALL COWS CALVING ARE AT RISK OF MILK FEVER, AND MOST HAVE SOME DEGREE
OF LOW BLOOD CALCIUM (HYPOCALCAEMIA)5
However risk does increase with age and parity4,5.
Risk factors that can help indicate individual cows or herds at greater risk include:
• Increasing lactations (any cow 2 lactations and above)2,4,5.
• High yielding cows.
• Previous history of milk fever.
• Body condition score >3.5.
• Grass based diets/forage or diet high in potassium (K)/high DCAD.