on 25 Feb 2021 Volac’s whey-based milk replacers deliver top calf performance Advances in technology and research have led to whey-based milk replacers becoming the go-to protein source for calf nutrition. SPONSORED Rebecca O’Sullivan stressed the nutritional benefits of whey-based milk replacers compared with products based on skim powder. Volac has led the technological revolution through the development of unique ultrafiltration systems where a combination of filtered, evaporated and gently sorted milk constituents are collected at low temperature from liquid whey. These include proteins, fats and sugars, resulting in a highly nutritious bioactive complex called Imunopro®, which is the base of all Volac milk replacers.