摘要
为了探究紫花苜蓿草粉的适宜添加比例,研究了苜蓿草粉的添加水平依次为0(对照),5%(A1),10%(A2),15%(A3)和20%(A4)的5种饲料对刺参幼参(3.16±0.66)g生长、体成分和免疫酶活性的影响。结果显示,刺参特定生长率(SGR)的最大值(0.73%)和饵料系数(FCR)的最小值都出现在A2组。A2组刺参的粗蛋白含量最高(52.10%),显著高于A1与A4组(P<0.05)。A4组刺参的过氧化氢酶(CAT)活力值最高(142.28U/mL),显著高于A0、A1与A2组(P<0.05);A3组刺参的超氧化物歧化酶(SOD)活力值最高(136.58U/mL),显著高于A0组(P<0.05);A3组刺参的溶菌酶(LZM)含量最高(1.92μg/mL),显著高于A0、A1与A2组(P<0.05)。结果表明,当苜蓿草粉的添加比例为10%左右时,实验刺参的养殖效果最佳。
To determine the appropriate proportion of Medicago sativa in the diet of Japanese sea cucumber （Apostichopus japonicus）, the effects of five diets containing zero （A0）, 5 % （A1）, 10 % （A2）, 15 % （Aa） and 20% （A4） M. sativa meal on growth, body composition and immune enzyme activity in A. japonicus （3.16±0.66 g） were assessed. The A2 diet produced the highest growth rate （0.73%）, feed conversion ratio （FCR） and crude protein content （52.10%）, significantly higher （P〈0.05） than the A1 and A4 diets. The activity of catalase in sea cucumbers from group A4 （142.28 U/mL） was significantly higher than those in groups A0, A1 and A2（P〈0.05）. Superoxide dismutase （SOD） activity in A3 （136.58 U/mL） was significantly higher than the A0 group （P〈0.05）. Additionally, lysozyme （LZM） content in the A3 group （1.92 /,g/mL） was signifi- cantly higher than those in groups A0, A1 and A2 （P〈0.05）. The results suggest that the optimum proportion of M. sativa in A. japonicus diets is 10%.
出处
《草业学报》
CSCD
北大核心
2015年第2期208-214,共7页
Acta Prataculturae Sinica
基金
辽宁省农业攻关计划重大项目(2011203003)资助
关键词
紫花苜蓿
刺参
生长
体成分
免疫酶
Medicago sativa
Apostichopus japonicus
growth
body composition
immune enzymes
