留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码
董小林, 钱雪桥, 刘家寿, 陈家林, 王正凯, 樊华, 姜瑞丽, 周易勇. 饲料蛋白质和小麦淀粉水平对中大规格草鱼生长性能及肝脏组织结构的影响[J]. 水生生物学报, 2019, 43(5): 983-991. DOI: 10.7541/2019.117
引用本文: 董小林, 钱雪桥, 刘家寿, 陈家林, 王正凯, 樊华, 姜瑞丽, 周易勇. 饲料蛋白质和小麦淀粉水平对中大规格草鱼生长性能及肝脏组织结构的影响[J]. 水生生物学报, 2019, 43(5): 983-991. DOI: 10.7541/2019.117
DONG Xiao-Lin, QIAN Xue-Qiao, LIU Jia-Shou, CHEN Jia-Lin, WANG Zheng-Kai, FAN Hua, JIANG Rui-Li, ZHOU Yi-Yong. EFFECTS OF DIETARY PROTEIN AND WHEAT STARCH ON GROWTH AND LIVER STRUCTURE OF GRASS CARP, CTENOPHARYNGODON IDELLA[J]. ACTA HYDROBIOLOGICA SINICA, 2019, 43(5): 983-991. DOI: 10.7541/2019.117
Citation: DONG Xiao-Lin, QIAN Xue-Qiao, LIU Jia-Shou, CHEN Jia-Lin, WANG Zheng-Kai, FAN Hua, JIANG Rui-Li, ZHOU Yi-Yong. EFFECTS OF DIETARY PROTEIN AND WHEAT STARCH ON GROWTH AND LIVER STRUCTURE OF GRASS CARP, CTENOPHARYNGODON IDELLA[J]. ACTA HYDROBIOLOGICA SINICA, 2019, 43(5): 983-991. DOI: 10.7541/2019.117

饲料蛋白质和小麦淀粉水平对中大规格草鱼生长性能及肝脏组织结构的影响

EFFECTS OF DIETARY PROTEIN AND WHEAT STARCH ON GROWTH AND LIVER STRUCTURE OF GRASS CARP, CTENOPHARYNGODON IDELLA

  • 摘要: 草鱼(Ctenopharyngodon idella)对碳水化合物的利用能力显著优于脂肪, 因此研究碳水化合物与蛋白的相互作用关系是解决草鱼配方策略的重要途径。实验探讨了中规格(460 g)草鱼和大规格(1970 g)草鱼饲料中蛋白与碳水化合物的相互作用关系。实验采用2×4的双因子实验设计, 实验一: 中规格草鱼饲料的2个淀粉梯度为25%和35%, 4个蛋白梯度为22%、24%、26%和28%, 共8个处理; 实验二: 大规格草鱼饲料的2个淀粉梯度为30%和40%, 4个蛋白梯度为18%、20%、22%和24%, 共8个处理。在56d的等量投喂后, 实验结果显示: 中规格草鱼的生长性能随着饲料蛋白水平的升高显著上升, 在28%蛋白水平组达到最高(P<0.05), 且小麦淀粉水平35%组的生长性能显著高于25%组(P<0.05); 大规格草鱼的生长性能也随着饲料蛋白水平的升高显著上升, 在蛋白水平大于20%之后差异不显著(P>0.05), 且小麦淀粉水平40%组的生长性能显著高于30%组(P<0.05)。同时, 中规格和大规格草鱼饲料分别添加35%和40%小麦淀粉时不会对草鱼的肝脏组织造成明显的负面影响。由此可见, 在实验条件下, 中规格和大规格草鱼分别在饲料小麦淀粉水平35%和40%以内时, 可以有效地利用淀粉节约饲料蛋白而不造成肝脏组织损伤。

     

    Abstract: To study effects of dietary carbohydrates and proteins on the growth of grass carp, we formulated a factorial design of 2×4 diets with medium-size (460 g) and large-size (1970 g) grass carp (Ctenopharyngodon idella). Two die-tary starch levels of 25% and 35% and four protein levels of 22%, 24%, 26% and 28% were fed with medium-size grass carp for 56d with same quantity of food. Two dietary starch levels of 30% and 40% and four protein levels of 18%, 20%, 22% and 24% were fed large-size grass carp. The results showed that the growth performance of the medium-size grass carp increased significantly with increased protein level with the highest effect in the 28% protein group (P<0.05), and the growth performance of 35% wheat starch group was significantly higher than that of the 25% group (P<0.05). The growth performance of large-size grass carp increased significantly with the increased protein level with the peak level at 20% (P>0.05). The growth performance of the 40% wheat starch group was significantly higher than that of the 30% group (P<0.05). No significant negative effects on liver tissues were observed by adding 35% or 40% wheat starch in both groups of grass carp. These results revealed that grass carp can effectively utilize starch to save feed protein when the wheat starch level of the feed was below 35% and 40%, respectively.

     

/

返回文章
返回