关键词: CXA-1系小鼠, 颗粒饲料, 繁育, 全价营养

Abstract: According to the criterions of our country and those concerned references,a new composition of granulated feed for feeding CXA-1 mice was designed and used in our department. The granules of this feed measured 12mm in diameter and contained crude protein, fat, thick fibre. calcium and phosphorus of 20.5%, 9.2%, 5%, 1.35% and 0.8% in their given order. The contents of the other nutrient component in the feed all were within the standard limits. The feeding results for 7 years showed the pregancy rate, breed numbres per litter and survival rate after weaning of the animals fed with the feed exceeded those of the same animals fed with the other composition feed which was used previously in our department. The results suggested that this granulated feed basically satisfy the demand for culture of CXA-1 r-inbred mice and come up the level of full value nutrition.

Key words: CXA-1 strain mice granulated feed breed full value nutirtion