Q&A on milk feeding

Q: 6-mth old son on full breast milk from birth till 4 mth, and since then (7-8pm) he has two intakes of formula milk twice a day.
In between, he'll have breast milk and formula milk. Before starting on infant rice cereals, he drinks breast milk (4-6 oz).
After he was introduced infant cereals from 4 mth onwards, he has been drinking less milk. Is it normal?
At night, he'll be full on breast milk till the next day. He wakes up twice at night for feeding. Other infants are drinking 6 oz or more, plus infant cereals. Is my son ok?
He's 8.3kg now.

A: your baby is above the 50th percentile for weight (above average for weight). Once weaning begins, the amount of milk intake varies for different babies, depending on their capacity for solids.