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The first milk secreted by the mammary gland during the first days following parturition.



in mammals and man, a secretion of the mam-mary glands present for a few days before and after parturition.

Colostrum is a thick, viscous, yellowish fluid with a brackish taste and characteristic odor. It differs from milk in its greater acidity, its higher content of dry matter (especially proteins— mainly albumins and globulins—and fats, minerals, and vitamins), and its lower content of sugar. In kind and combination of nutrients, colostrum is an indispensable food for newborns. It contains a large quantity of immune bodies and antitoxins, which protect the infant from the effects of pathogenic bacteria. In addition, it is a laxative and stimulates the normal activity of the digestive tract. In general, it helps the newborn adapt to extrauterine existence. Animal colostrum is not suitable for industrial processing; it clots quickly upon pasteurization and imparts an unpleasant flavor and poor storage potential to food products containing it. Human colostrum approaches the composition of normal milk by the third day or the end of the first week after labor; animal colostrum, after seven to ten days.

References in periodicals archive ?
Variation in colostral immunoglobulin G concentration in fat tailed sheep and evaluation of methods for estimation of colostral immunoglobulin content.
Present study concluded that prepartum supplementation of cattle with vitamin E and Selenium along with vaccination improves the antibody titer in animal and improves colostral content of antibodies and passive transfer of antibodies.
Prediction of calf mortality by use of tests for passive transfer of colostral immunoglobulin.
In addition to the question of duration of colostral protection, this observation raises questions about virus hosts.
2004), wave latency VEPs at 15 min were significantly related to the colostral levels of both DDT and DDE, and wave latency VEPs at 60 min were related to levels of DDT.
False-positive results can be seen with the card test especially as a result of residual antibody in calves from vaccination, colostral antibody in calves, and cross-reaction with other bacteria.
X) = optional Foals At 3 4 5 6 Age birth 2 months months months months months Rhinopneumonitis X * then every 2 months Flu X * then every 2 months E & W X * Tetanus toxoid X Strangles X Nonvaccination injection of vitamin X ** E-selenium (equine product) * Initial 4-way, booster 3 weeks later (the time when passive, colostral immunity decreases).
Researchers developed an industrial-scale process for the enrichment and storing of colostral antibodies in a biologically active form.
The newborn pig nurses to obtain colostral antibodies by passive diffusion.
Bovine anaplasmosis: in utero transmission and the immunologic significance of ingested colostral antibodies.