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以乌鳢(Channaargus)为研究对象,在3个蛋白水平(39%、43%、47%)的饲料中分别添加维生素B66、18和32mg·kg-1配制9种等能饲料。探讨不同蛋白水平的饲料中添加维生素B6对乌鳢生长和体组成的影响。结果表明,饲料蛋白质水平和维生素B6都显著地影响乌鳢的增重率、蛋白效率和饲料系数(P<0.05),乌鳢的特定生长率和增重率随着蛋白质水平的增加呈先升高后稳定的趋势,在39%和43%蛋白质水平下,32mg·kg-1维生素B6的添加显著提高其生长(P<0.05),饲料蛋白质和维生素B6的交互作用对乌鳢的生长没有显著影响(P>0.05)。乌鳢肌肉蛋白质含量显著受到饲料蛋白质和维生素B6的影响(P<0.05),脂肪含量只受到维生素B6的显著影响(P<0.05)。饲料蛋白质含量显著影响乌鳢肌肉中缬氨酸、异亮氨酸、亮氨酸、丙氨酸、脯氨酸和总氨基酸的含量(P<0.01)和赖氨酸、天门冬氨酸、谷氨酸、丝氨酸和酪氨酸的含量(P<0.05)。维生素B6显著影响乌鳢肌肉中苏氨酸、亮氨酸、天门冬氨酸、丙氨酸、脯氨酸和总氨基酸的含量(P<0.01)和甘氨酸和丝氨酸的含量(P<0.05)。饲料蛋白质水平及其与维生素B6的交互作用只显著影响到天门冬氨酸的含量(P<0.05)。在本试验条件下,乌鳢蛋白质的需求量为43%,适当添加维生素B6可通过增加必需氨基酸的含量来增加蛋白质的沉积,促进脂肪的代谢,提高肌肉品质,促进乌鳢的生长。
To Channaargus as research object, nine kinds of isoforms were prepared by adding vitamin B66, 18, and 32 mg · kg-1 into three protein levels (39%, 43%, 47% To investigate the effects of dietary vitamin B6 supplementation on the growth and body composition of Asarum chinense. The results showed that the dietary protein level and vitamin B6 significantly affected the weight gain, protein efficiency and feed efficiency (P <0.05), while the specific growth rate and weight gain rate increased first and then increased with the increase of protein level (P <0.05). The interaction of dietary protein and vitamin B6 had no significant effect on the growth of A. chinense (P> 0.05), but the effect of dietary protein and vitamin B6 had no significant effect on the growth of A. chinensis at the protein levels of 39% and 43% > 0.05). The content of muscle protein in Wagtail was significantly affected by dietary protein and vitamin B6 (P <0.05), and fat content was significantly affected by vitamin B6 (P <0.05). Dietary protein content significantly affected the contents of valine, isoleucine, leucine, alanine, proline and total amino acids (P <0.01) and lysine, aspartate, glutamine The contents of acid, serine and tyrosine (P <0.05). Vitamin B6 significantly affected the content of threonine, leucine, aspartic acid, alanine, proline and total amino acids (P <0.01) and the content of glycine and serine (P <0.05). Dietary protein levels and their interaction with vitamin B6 only significantly affected aspartate levels (P <0.05). Under the conditions of this test, the protein content of Asparagus officinalis is 43%. Adding proper amount of vitamin B6 can increase the deposition of protein by increasing the content of essential amino acids, promote the metabolism of fat, improve muscle quality and promote the growth of Asplenium argenteus.