四川农业大学学报 ›› 2014, Vol. 32 ›› Issue (02): 121-125,147.doi: 10.3969/j.issn.1000-2650.2014.02.001

• •    下一篇

6种水稻秸秆青贮的适宜性

张锦华1, 许留兴2, 张俞2, 税静3, 尚以顺1   

  1. 1. 贵州省畜牧兽医研究所, 贵阳 550005;
    2. 贵州师范大学, 贵阳 550001;
    3. 四川农业大学四川省草业工程重点实验室, 四川 雅安 625014
  • 收稿日期:2014-03-20 出版日期:2014-06-30 发布日期:2017-02-28
  • 通讯作者: 尚以顺,研究员,主要从事草类资源、草品种育种与养畜利用等研究,E-mail:Gzsyishun@vip.sina.com。 E-mail:Gzsyishun@vip.sina.com
  • 作者简介:张锦华,博士,副研究员,主要研究方向为草业科学,E-mail:zhangjinhua990@msn.com。
  • 基金资助:
    国家十二五科技支撑计划重大课题2011BAC09B01;贵州省农业攻关项目,黔科合NY字[2009]3090

Suitability of Straw Silage in Six Rice Varieties

ZHANG Jin-hua1, XU Liu-xing2, ZHANG Yu2, SHUI Jing3, SHANG Yi-shun1   

  1. 1. Guizhou Animal Husbandry and Veterinary Institute, Guiyang 550005, Chinas;
    2. Guizhou Normal University, Guiyang 550001, Chinas;
    3. Sichuan Province Key Laboratory of Grassland Science, Sichuan Agricultural University, Yaan 625014, Sichuan, China
  • Received:2014-03-20 Online:2014-06-30 Published:2017-02-28

摘要: [目的] 提高稻草的利用效率。[方法] 对贵州和四川栽培的6个水稻品种的适宜性进行了对比研究。水稻收割完后将秸秆样品切成约2~5 cm长,然后按鲜重比50 g/kg添加玉米粉,并对稻草鲜样和青贮饲料的主要营养成分(TBN、WSC、CP、NDF、ADF)进行测定,经过40 d的青贮然后对其pH值和感官特征分别进行测定和评估。[结果] 稻草的营养成分受基因和生长环境的影响而发生变化,基因比生长环境对稻草的影响更大,说明育种方法能提高其使用价值。ZY-238、CXY-6和GY系列(P>0.05)等6个品种之间的ADF和NDF含量没有明显的差异,但却显著高于Ⅱ-Y系列(P<0.05,P<0.01)中ADF和NDF的含量。Ⅱ-Y系列的WSC和CP含量比其他品种高,GY系列的WSC含量处于中间水平,在同一系列中还有类似的特征。Ⅱ-Y系列和GY系列中的DM、WSC、CP含量随种植区域和品种的变化而变化。[结论] 即使不是优质稻草,在人工添加玉米粉的条件下也能成功青贮,WSC含量增加,pH值和TBN含量减少。稻草鲜样青贮之后添加玉米粉和乳酸菌,pH值降到4.2以下,TBN含量小于0.12%,WSC和CP增加到2.5 g/kg和6.89 g/kg,ADF和NDF含量明显降低。从整体上来说,Ⅱ-Y系列和GY-257稻草青贮适宜性更好,青贮饲料在添加了玉米粉和乳酸菌之后质量显著提高。

关键词: 水稻, 青贮, 适宜性

Abstract: [Objective] The aim of this study was to enhance use efficiency of rice straw. [Method] In this paper,the suitability of rice straw was compared among six typical rice varieties in Sichuan and Guizhou.The straw was collected just after harvesting and cut into chip (2-5 cm).Corn flower was added based on 50 g/kg (fresh weight).The main nutrient components,such as TBN (ammoniacal nitrogen),WSC (water-soluble carbohydrate),CP (crude protein),NDF (neutral detergent fiber) and ADF (acid detergent fiber)were determined in both fresh straw and silage.The pH value and sensory characteristics were assessed after 40 days. [Results] Nutrition components of RS were different among genes and growing environments and the former was more important than the latter,which suggested that breeding method may enhance usage value.There was no significant differences in ADF and NDF among six varieties within ZY-238,CXY-6 and GY series (P>0.05)but they were significantly higher than those of Ⅱ-Y series (P<0.05,P<0.01).The WSC and CP contents of Ⅱ-Y series were richer than those of other varieties.The WSC value of GY series was in the middle level and there were similar in a same series.The DM,WSC and CP values of Ⅱ-Y and GY series varied with planting area and variety (P<0.05). [Conclusion] The unsuitable rice straw can ensilage by adding corn flower.WSC content was increased and pH and TBN were decreased.The straw was ensilaged with corn flower and LAB.The pH value was less than 4.2 and TBN value was less than 0.12%.WSC and CP were increased to 2.5 g/kg and 6.89 g/kg,respectively.However,ADF and NDF contents were also significantly decreased.As a whole,the ensilage suitability of Ⅱ-Y series and GY-257 RS was better and silage quality was improved significantly by adding corn flower and LAB.

Key words: rice, silage, suitability

中图分类号: 

  • S816.5+3