한국재래유산양의 Immunoglobulin 및 초유성분의 함량변화 = Variation in the Coneentration of Colostral Constituents Including Immunoglobulin in Korean Native Goats

다국어 초록 (Multilingual Abstract)

Changes in colostral IgG, total solids(T.S), ash and protein in colostrum and noromal milk from 22 Korean native goats in four lactation groups were studied.
Samples were obtained at 12 hrs interval from 0 to 48 hrs and 24 hrs interval from 72 to 120 hrs postpartum for colostrum and in 3 days interval from 10 to 22 days postpartum for normal milk. The total mean concentrations of IgG (171.06±4.71 mg/ml), T. S. (28.42%), ash(1.17%) and protein (13.76%) in colostrum at the first milking postpartum decreased (p$lt;0.01) rapidly for 36 hrs postpartum and those of normal milk were 0.74±0.02 mg/ml, 13.90%, 0.83% and 3.83%, respectively. A similarity in disappearance of colostral constituents among lactations was apparent.
Compared to lactation number IgG concentration in colostrum at the first milking postpartum was dower in first lactation than in all the older groups, whereas that in third lactation was highest (p$lt;0.01) among all the lactations, almost 1.53 times in IgG concentration compared to the first lactation. But there were no significant differences among lactations from 12 hrs to 120 hrs postpartum except 24 hrs postpartum.
The means of T. S. and protein in colostrum at the first milking postpartum was higher(p$lt;0.01) in fourth to sixth lactation than is first and second lactation, whereas those in first lactation were lower(p$lt;0.01) than in all the lactation grasps. In general older animals contained more T. S. and protein concentration in colostrum at the first milking postpartum.