The concentration of lactose in plasma was determined in different sows at all phases of
their reproductive cycle and related to the compositional changes in mammary secretion …

SUMMARY Mammary secretion (1· 2–2· 0 ml) was collected from the milk sinus of each
mammary gland (quarter) of two pregnant heifers and eight pregnant cows (dry period 49 …

Lactose could not be detected in the urine of non-lactating cows but was invariably found,
though usually in low concentration, in the urine of lactating cows; the highest values were …

The secretion obtained from the mammary gland in the first few days after parturition has
been termed 'colostrum'; it differs from normal milk in containing a higher concentration of …

Lactose in the plasma of 12 lactating goats and one cow with healthy udders has been
measured by a sensitive and specific enzymic assay. Mean values (±SE) for arterial and …

1. The volume of the udder and the composition of the secretion have been followed in five
goats through pregnancy to the onset of lactation. 2. During the middle of pregnancy udder …

Conclusions 1. There was no apparent relation between arterio-venous blood sugar
differences and the following: period of time following milking, arterial blood sugar level and …

The present discussion will be concerned with the endocrine mechanism controlling milk
secretion in the pregnant rat by using the appearance of lactose in the mammary gland as …

The concentrations of lactose, glucose, glucose 6-phosphate, glucose 1-phosphate,
UDPglucose, UDPgalactose, UDP, UMP, inorganic phosphate, ADP and AMP (metabolites …

1. Changes in milk composition and in mammary permeability to labelled sucrose and
monovalent ions have been studied in late pregnancy and at the time of parturition. These …