Colostrum
The colostrum is the name given to the Lait secreted by the Mammifère S females at the end of the Gestation and in the first days (3 to 4) according to the Parturition.
Of yellowish color, it is very rich in Protéine S and Anticorps essential to the Immunisation of the Nouveau-né and low in Sucre S. The types of antibodies met in the colostrum depend on the infectious agents to which the mother was exposed during her existence, either naturally, or by Vaccin ation.
The newborn is able to absorb the antibodies in the first times after the birth, in a passive way, as long as the permeability of the cells Intestin ales makes it possible to let pass these large Molécule S. Thereafter the antibodies are destroyed during the process of the Digestion. This transmission cannot be done during gestation because the Placenta is impermeable with the antibodies.
The new-born babies nourished with the center are immunized thus better than those nourished with the feeding-bottle. The colostrum is also regarded as first food having to penetrate the digestive tract after the birth and no product currently can replace it.
In the Bovine breeding , one holds the name of colostrum to the product of the first draft. Is that collected then until the 4th day a milk of transition (legal bases?) whose composition approaches gradually that of full-cream milk. The colostrum of cow is very rich in proteins (14 instead of 3,2% in milk on average), in antibody (6%), in vitamin has and biogenic salts. It is also fattier (6,7 instead of 3,2%).
Marketed milk should not contain traces of colostrum. It is besides of share the law a milk obtained more than seven days after the low setting.
The antibodies contained in the colostrum are generally specific to each Espèce. However preparations containing of the bovine colostrum are sold like food complements with the virtues miracles in particular to resist ageing.
See too
Breast feeding | Milk | Dairy products
External bonds
- Qualitionnaire - legal and normative Definitions - Colostrum
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