cows in milk; contrast with milking cows.
1. the secretion of milk by the mammary glands. 2. the period of weeks or months during which the dam lactates.
artificial l. see lactation induction (below).
current l. listing a list of all the cows in a herd which are currently being milked.
l. curves daily milk yield plotted along one abscissa of a graph, days along the other. Used to monitor peak milk output and milk persist...
1. lactation tetany of ruminants is a highly fatal disease of recently calved, lactating cows and recently lambed ewes. The disease reaches serious levels of prevalence in animals grazing grass dominated pastures and cereal crops. It is characterized by hypomagnesemia and usually an accompanying hypocalcemia. Clinical highlights include tonic and clonic muscular spasms, and convulsions and death d...
may facilitate fracture of the femur, vertebrae and phalanges in lactating sows fed diets deficient in calcium and normal to high phosphorus.
1. pertaining to milk. 2. any of the intestinal lymphatics that transport chyle.
a bacteriostatic substance in milk.
resemblance to milk.
pertaining to milk.
l. acid a compound formed in the body in metabolism of carbohydrate, by fermentation of carbohydrates in the rumen and by bacterial action on milk. The sodium salt of racemic or inactive lactic (sodium lactate) acid is used as an electrolyte and fluid replenisher.
l. acid cycle the metabolic system by which lactic acid produced by glycolysis in muscles is converted ...
l. ducts appearing first as epithelial diverticula which invade the mammary mesenchyme from the mammary buds, the precursors of the teats, these solid cords of cells later cavitate to produce lactiferous ducts.
l. sinus large cavity, continuous with the lactiferous ducts in mammary tissue, which serves as a reservoir for accumulated milk in the mammary gland until it is...