Chemical constituents affecting cosmolality of milk in crossbred cattle

Abstract

A study was planned to ascertain the behaviour of osmotically active components in normal milk, milk collected from animals induced to lactate and milk collected from infected udder. An exhaustive review on the literature available on the topic was made. The samples of milk were collected from three groups of crossbred cows which were in three phases of lactation namely, early, middle and late. Milk samples were also collected from two infertile animals which were induced to lactate with the administration of steroid hormones and from four cows affected with mastitis. All the samples were analysed for lactose, chloride, sodium and potassium by standard methods described.