The 6 main milk proteins in cattle are encoded by highly polymorphic genes characterized
by several nonsynonymous and synonymous mutations, with up to 47 protein variants …

True lactose intolerance (symptoms stemming from lactose malabsorption) is less common
than is widely perceived, and should be viewed as just one potential cause of cows' milk …

This report of the American Dairy Science Association Committee on the Nomenclature,
Classification, and Methodology of Milk Proteins reviews changes in the nomenclature of …

A new RP-HPLC method for the separation and quantification of the most common genetic
variants of bovine milk proteins is described. A reversed-phase analytical column C8 …

Casein is a major protein in cow's milk that occurs in several variant forms, two of which are
β-casein A1 and β-casein A2. The levels of these two proteins vary considerably in milk …

Acute-feeding and multiple-day studies have demonstrated that milk containing A2 β-casein
only causes fewer symptoms of lactose intolerance (LI) than milk containing both A1 and A2 …

The genetic variant A1 of bovine β-casein (β-Cn) presents a His residue at a position 67 of
the mature protein. This feature makes the Ile66-His67 bond more vulnerable to enzymatic …

In cattle, at least 39 variants of the 4 casein proteins (αS1-, β-, αS2-and κ-casein) have been
described to date. Many of these variants are known to affect milk-production traits, cheese …

Lactose maldigesters report an increase in abdominal pain due to the consumption of milk
containing a mixture of A1 and A2 β-casein as compared to milk containing only A2 β …

Increasing productivity is one of the main objectives in animal production. Traditional
breeding methods have led to increased gains in some traits but gains are not easily …