【摘要】 <正> 饲养蛋用鸡需要蛋白质饲料,一般常用的蛋白质饲料以鱼粉和大豆饼为主。我国西北等边远地区鱼粉甚缺,阶格昂贵,每公斤价达1.4—1.8元,且质量不能保证;大豆饼产量也有限。但西北等地产亚麻饼甚多,如甘肃省年产亚麻饼约1亿多斤,占全省油粕产量的60%,每公斤价仅0.14—0.22元,较鱼粉为廉。为此,本研究试图探讨:(1)在更多还原

【Abstract】 In 1981 and 1982 linseed meal was used in the ration for feeding Xin Zha 288 White Leghorn pullets of 7 to 21 weeks of age in single cages and in groups. The body weight of the pullets of the linseed meal group at 21 weeks of age was 1,378 g, as compared with 1,430 g of those of the fish meal group in 1982. The body weight and daily gain of pullets aged 7—21 weeks of the 7.5—12% linseed meal group were less than those of the fish meal group by 3—4 and 3—6% respectively, but the costs of the ration of the linseed meal group were 25% lower than that of the fish meal group. It was also found that ration containing as much as 12% linseed meal was not toxic to the pullets, but in the metabolic experiment the retention of protein by pullets in the linseed meal group was less than that in the fish meal group. From the results of the two experiments, it is concluded that linseed meal can be used to replace fish meal in pullet feeding particularly in North-West China where fish meal is scanty and very expensive, while linseed meal is very cheap and abundant in local supply.更多还原