反刍与草食动物营养与饲料 RUMINANT AND HERBIVORE NUTRITION AND FEED

生马铃薯条加工副产品与稻草混贮和全株玉米青贮的发酵特性及康奈尔净碳水化合物-蛋白质体系组分比较

  • 温媛媛 ,
  • 李妍 ,
  • 李建国 ,
  • 王美美 ,
  • 沈宜钊 ,
  • 高艳霞 ,
  • 曹玉凤 ,
  • 李秋凤
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  • 1. 河北农业大学动物科技学院, 保定 071000;
    2. 河北农业大学动物医学院, 保定 071000
温媛媛(1995-),女,河北张家口人,硕士研究生,从事动物营养与饲料科学研究。E-mail:1359181423@qq.com

收稿日期: 2021-02-20

  网络出版日期: 2021-09-18

基金资助

国家肉牛牦牛产业技术体系建设项目(CARS-37);公益性行业(农业)科研专项(201503134);河北省现代农业产业技术体系肉牛创新团队项目(HBCT2018130202)

Comparison of Fermentation Characteristics and Cornell Net Carbohydrate Protein System Components of Mixed Silage of Raw Potato Chips Processing by Product with Rice Straw and Whole Corn Silage

  • WEN Yuanyuan ,
  • LI Yan ,
  • LI Jianguo ,
  • WANG Meimei ,
  • SHEN Yizhao ,
  • GAO Yanxia ,
  • CAO Yufeng ,
  • LI Qiufeng
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  • 1. College of Animal Science and Technology, Hebei Agricultural University, Baoding 071000, China;
    2. College of Veterinary Medicine, Hebei Agricultural University, Baoding 071000, China

Received date: 2021-02-20

  Online published: 2021-09-18

Supported by

 

摘要

本试验旨在通过感官评定、发酵特性、化学养分分析方法和瘤胃尼龙袋技术等,依据康奈尔净碳水化合物-蛋白质体系(CNCPS),对生马铃薯条加工副产品与稻草混贮和全株玉米青贮的营养特性进行评价和比较,为生马铃薯条加工副产品与稻草混贮在反刍动物养殖中的应用提供参考。结果表明:2种发酵饲料的感官评分均为一级优良。粗蛋白质(CP)和非蛋白氮(NPN)含量在生马铃薯条加工副产品与稻草混贮中最高。生马铃薯条加工副产品与稻草混贮的快速降解蛋白(PB1)和快速降解碳水化合物(CA)含量显著高于全株玉米青贮(P<0.05),不可利用蛋白(PC)含量显著低于全株玉米青贮(P<0.05)。与全株玉米青贮相比,生马铃薯条加工副产品与稻草混贮的48 h中性洗涤纤维(NDF)和酸性洗涤纤维(ADF)的瘤胃降解率无显著差异(P>0.05)。综上所述,生马铃薯条加工副产品与稻草混贮的CP含量高于全株玉米青贮,两者的NDF瘤胃降解率无显著差异,生马铃薯条加工副产品与稻草混贮可以作为反刍动物较好的粗饲料。

本文引用格式

温媛媛 , 李妍 , 李建国 , 王美美 , 沈宜钊 , 高艳霞 , 曹玉凤 , 李秋凤 . 生马铃薯条加工副产品与稻草混贮和全株玉米青贮的发酵特性及康奈尔净碳水化合物-蛋白质体系组分比较[J]. 动物营养学报, 2021 , 33(9) : 5036 -5045 . DOI: 10.3969/j.issn.1006-267x.2021.09.024

Abstract

This experiment was to evaluate and compare the nutrient value and rumen degradation rate of mixed silage of raw potato chips processing by product with rice straw and whole corn silage by sensory evaluation, fermentation index, chemical nutrient analysis, nylon bag technique and according to Cornell net carbohydrate protein system (CNCPS) to provide a reference for the use of mixed silage of raw potato chips processing by product with rice straw in beef cattle breeding. The results showed that:the sensory scores of the both feeds were excellent. Crude protein (CP) and non-protein nitrogen (NPN) contents were the highest in the mixed silage of raw potato chips processing by product with rice straw. The contents of rapid degradable protein (PB1) and rapid degradable carbohydrate (CA) in the mixed silage of raw potato chips processing by product with rice straw were significantly higher than those in the whole corn silage (P<0.05), and the content of non-degradable protein (PC) was significantly lower than that in the whole corn silage (P<0.05). Compared with whole corn silage, the 48 h rumen degradation rates of neutral detergent fiber and acid detergent fiber of mixed silage of raw potato chips processing by product with rice straw had no significant difference (P>0.05). In conclusion, the crude protein content of raw potato processing by-product mixed with rice straw is higher than that of whole plant corn silage, and there is no difference in the rumen degradation rate of neutral detergent fiber between them. The mixed silage of raw potato chips processing by product with rice straw can be used as a better roughage resource for ruminants.

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