Weiser M M.Intestinal epithelial cell surface membrane glycoprotein in synthesis.I.An indicator of cellular differentiation[J].Journal of Biological Chemistry.1973,248:2536-2541
[4]
Scita G,Apoten G W,Wolf G.Uptake and cleavage of β-carotene by cultures of rat small intestinal cells and human lung fibroblasts[A].San Diego:Academic Press.1993:213,21-32
[5]
Yang A,Larsen J.Carotenoid and retinol concentration in serum,adipose and liver and carotenoid transport in sheep,goat and cattle[J].Agricultural Research.1992,43:1808-1817
[6]
Swenson M J.Duke′s Physiology of Domestic Animals[M].New York:Vail-Ballou Press.1970:461-534