[Study on the composition of Lycium barbarum polysaccharides and its effects on the growth of weanling mice].

In order to observe the effects of lycium barbarum polysaccharides (LBP-4) on the growth of weanling mice and the absorption of some metals in the their body, the composition of LBP-4 is determined. 120 female weanling mice are divided in random into 4 groups. They are fed on LBP-4 at the dose of 5, 10 and 20 mg/(kg.d) respectively. The taken feed weight and the body weight of mice are recorded everyday. After 21 days, the content of calcium, magnesium, zinc and iron in pygal muscles and femora of mice is determined. The results showed that LBP-4 is composed of six kinds of monosaccharides that can enhance food conversion rate and the content of zinc and iron in body of mice, and reduce the body weight.