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草业学报 ›› 2025, Vol. 34 ›› Issue (8): 199-210.DOI: 10.11686/cyxb2024345

• 研究论文 • 上一篇    

全株饲料桑添加量对川白獭兔幼兔肠道形态、血液生化指标、肌肉中氨基酸含量及经济效益的影响

王红林1,2(), 文斌3, 左艳春1,2, 张凯3, 吴子周1,2, 严旭1,2, 袁正才1,2, 邓榆川4, 肖蔹5, 陈慧5, 寇晶1,2, 傅祥超3(), 杜周和1,2()   

  1. 1.四川省农业科学院特种经济动植物研究所,四川 南充 637000
    2.四川省农业科学院蚕业研究所饲用作物种质创新与利用南充市重点实验室,四川 南充 637000
    3.四川省草原科学研究院,四川 成都 611430
    4.四川省草业技术研究推广中心,四川 成都 610041
    5.南充市农业农村局,四川 南充 637000
  • 收稿日期:2024-09-09 修回日期:2024-10-31 出版日期:2025-08-20 发布日期:2025-06-16
  • 通讯作者: 傅祥超,杜周和
  • 作者简介:E-mail: duzhouhe@126.com
    E-mail: 1912288481@qq.com
    王红林(1989-),男,甘肃临洮人,助理研究员,硕士。E-mail: honglwsaas@163.com
  • 基金资助:
    四川省财政自主创新专项(2022ZZCX086);南充市推进乡村振兴项目(23XCZX0025);四川省农业科学院“1+9”揭榜挂帅科技攻关项目(1+9KJGG004),四川省“十四·五”育种攻关项目(2021YFYZ0024-2)

Effect of adding dietary whole-plant forage mulberry on the intestinal morphology, blood biochemical indicators, muscle amino acid content and economic return when raising Chuanbai rex rabbits

Hong-lin WANG1,2(), Bin WEN3, Yan-chun ZUO1,2, Kai ZHANG3, Zi-zhou WU1,2, Xu YAN1,2, Zheng-cai YUAN1,2, Yu-chuan DENG4, Lian XIAO5, Hui CHEN5, Jing KOU1,2, Xiang-chao FU3(), Zhou-he DU1,2()   

  1. 1.Institute of Special Economic Animals and Plants,Sichuan Academy of Agricultural Sciences,Nanchong 637000,China
    2.Forage Crops Germplasm Innovation and Production Management Key Laboratory of Nanchong City,Sericulture Research Institute,Sichuan Academy of Agricultural Sciences,Nanchong 637000,China
    3.Sichuan Academy of Grassland Science,Chengdu 611430,China
    4.Sichuan Grass Industry Technology Research and Promotion Center,Chengdu 610041,China
    5.Nanchong Bureau of Agricultural and Rural Affairs,Nanchong 637000,China
  • Received:2024-09-09 Revised:2024-10-31 Online:2025-08-20 Published:2025-06-16
  • Contact: Xiang-chao FU,Zhou-he DU

摘要:

为探究添加不同比例全株饲料桑对川白獭兔肠道形态、血液生化指标、肌肉中氨基酸含量及经济效益的影响,试验选用35日龄、体重相近[(1132.80±54.73) g]、健康状况良好的川白獭兔幼兔150只(公母各半),随机分为5组,每组30个重复,每个重复1只试兔。分别饲喂对应5种全价饲粮,即饲粮中分别添加0(对照)、6%、12%、18%和24%饲料桑。结果表明:添加12%组回肠及十二指肠绒毛高度最高,添加6%组回肠绒隐比显著高于对照组及添加24%组(P<0.05);添加12%组川白獭兔血液中单核细胞数目显著提高,添加18%组淋巴细胞数目显著提高(P<0.05);添加24%组总胆固醇浓度显著低于对照及添加6%组,添加24%组甘油三酯浓度显著低于对照及其他处理组(P<0.05);添加全株饲料桑对肌肉中氨基酸含量无显著影响(P>0.05),但随着添加比例的增加肌肉中肌苷酸含量显著增加(P<0.05);随着添加比例的增加饲料总成本逐渐降低,毛利润逐渐提高。综上,饲粮中添加全株饲料桑可增加川白獭兔幼兔肠道绒毛高度,降低血液中总胆固醇及甘油三酯浓度,增加肌肉中肌苷酸含量,提高经济效益。本试验条件下全株饲料桑用作川白獭兔幼兔的饲料原料时适宜添加量为24%。

关键词: 全株饲料桑, 川白獭兔幼兔, 肠道形态, 血液生化指标, 氨基酸, 经济效益

Abstract:

This experiment aimed to investigate the effects of adding dietary whole-plant forage mulberry (Morus alba) on the intestinal morphology, blood biochemical indicators, muscle amino acid content and economic return when raising Chuanbai rex rabbits. In all, 150 young Chuanbai rex rabbits (35 days old; half male and half female) with good health, and similar body weights (1132.80±54.73 g) were selected and randomly divided into five groups with 30 replicates per group and 1 rabbit per replicate. The rabbits were fed with a complete feed combination with whole plant forage mulberry added to the basic diet at a ratio of 0, 6%, 12% 18% and 24%. The results were as follows: The villus height in the ileum and duodenum of the 12%-addition-group was highest. The villus height/crypt depth in the 6% addition group was significantly higher than that in the control- and 24%-addition groups (P<0.05). The addition of 12% whole-plant forage mulberry significantly increased the number of monocytes (P<0.05), the addition of 18% whole-plant forage mulberry significantly increased the number of lymphocyte (P<0.05). The total cholesterol concentration in the blood of the 24%-addition group was significantly lower than that of the control- and 6%-addition groups, and the triglyceride concentration in the 24%-addition group was significantly lower than that of the control and other treatment groups (P<0.05). The addition of whole-plant forage mulberry had no significant effect on the amino acid content in muscle (P>0.05), but the concentration of inosine monophosphate in muscle increased significantly with increase in the addition ratio of whole-plant mulberry (P<0.05). Additionally, as the proportion of whole-plant forage mulberry increased, the total feed cost incrementally decreased, and the gross profit increased. In conclusion, the addition of whole-plant forage mulberry to the diet of young Chuanbai rex rabbits increased intestinal villus height, reduced blood total cholesterol and triglyceride levels, enhanced muscle inosine monophosphate content, and improved economic return. Under the experimental conditions, up to 24% whole-plant forage mulberry could be added without evident side effects.

Key words: dietary whole-plant forage mulberry, Chuanbai rex rabbit, intestinal morphology, blood biochemical indicators, amino acid, economic benefit