植酸酶和非淀粉多糖酶对肉鸡氮磷利用率的影响  

Effect of phytase and NSP enzyme supplemented to corn-soybean diet on availability of nitrogen and phosphor for chickens

作　　者：徐建雄[1] 崔立[1] 陈鲁勇[1] 沈明泉[1] 

机构地区：[1]上海交通大学农业与生物学院,上海201101

出　　处：《上海交通大学学报（农业科学版）》2002年第4期291-295,共5页Journal of Shanghai Jiaotong University(Agricultural Science)

基　　金：上海市教委曙光计划项目 (97SG3 4)

摘　　要：选用 1日龄健康黄羽肉鸡 60 0羽随机分成 4组 ,每组 3个重复 ,每重复 5 0羽 ,饲喂玉米 -豆粕型日粮 ,研究日粮添加植酸酶和 (或 )非淀粉多糖酶对机体 N和 P的利用率、骨骼和血清中矿物元素含量及其生产性能的影响。处理 1为基础日粮 ,处理 2为低磷日粮添加 2 5 0 g/t植酸酶 ,处理 3在基础日粮中添加 1 0 0 0 g/t非淀粉多糖酶 ,处理 4为低磷日粮添加 2 5 0g/t植酸酶和 1 0 0 0 g/t非淀粉多糖酶。结果表明 :低磷日粮中添加植酸酶可提高 N、P的表观利用率 (P<0 .0 5 ) ,而非淀粉多糖酶有提高日粮 N、P利用率的趋势 (P>0 .0 5 ) ;低磷日粮中添加植酸酶后胫骨灰分、Ca、P含量、血清中 Ca、P、Cu、Zn和Fe的浓度无显著差异 (P>0 .0 5 ) ;非淀粉多糖酶有提高胫骨灰分及其中 Ca、P含量以及血清中 Ca、P、Cu、Zn和 Fe等矿物元素含量的趋势 (P>0 .0 5 ) ;日粮中同时添加植酸酶和非淀粉多糖酶有促进日粮 N和 P利用率以及矿物元素吸收的趋势 ,但两者没有表现出显著的协同作用 ,日粮中应用 2种酶后可减少粪中氮和磷的排泄量 (P<0 .0 5 ,P<0 .0 1 ) 。An experiment with four corn soybean diets add phytase and NSP enzyme at 0(treatment 1)?250 g/t phytase(treatment 2)?1 000 g/t NSP enzyme(treatment 3)?250 g/t phytase and 1 000 g/t NSP enzyme(treatment 4) was conducted using 600 yellow chicks of one day's old, divided into four groups with 3 repeats of each group. The results showed that adding phytase in low phosphor diets the apparent availability of nitrogen and phosphor was increased(P<0 05), and the concentration of ash?Ca and P in shin and Ca?P?Cu?Zn and Fe in serum did not be influenced; and adding NSP enzyme it was also increased but no significantly(P>0 05). Phytase and NSP enzyme supplemented to corn soybean diet can improve the apparent availability of nitrogen and phosphor and mineral concentration in tissues of chickens, and decrease the nitrogen and phosphor in fecal significantly (P<0 05, P<0 01), but no reciprocity effect(P>0 05).

关 键 词：植酸酶 非淀粉多糖酶 肉鸡 氮 磷 利用率 

分 类 号：S831[农业科学—畜牧学]