how early can you wean a calf
1 Calves are ideally weaned when they are 7 to 8 months old. 2  The right time to wean a calf depends on the condition of the cow and not the age of the calf. 3  Calves should be weaned before the condition score of the cow falls below 2,5 if adequate winter feed is available and the cows maintain their condition. Calves are ideally weaned when they are 7 to 8 months old. 2  The right time to wean a calf depends on the condition of the cow and not the age of the calf. 3  Calves should be weaned before the condition score of the cow falls below 2,5 if adequate winter feed is available and the cows maintain their condition.