Xinjiang Agricultural Sciences ›› 2022, Vol. 59 ›› Issue (7): 1767-1775.DOI: 10.6048/j.issn.1001-4330.2022.07.024

• Soil Fertilizer·Agricultural Equipment Engineering and Mechanization·Animal Husbandry Veterinarian·Prataculture • Previous Articles     Next Articles

Effects of Different Additives on Quality and Aerobic Stability of Cyperus esculentus Silage

HE Tingting(), WANG Xuzhe, SONG Lei, MA Chunhui()   

  1. College of Animal Science and Technology, Shihezi University, Shihezi Xinjiang 832000, China
  • Received:2020-10-25 Online:2022-07-20 Published:2022-08-04
  • Correspondence author: MA Chunhui
  • Supported by:
    China Agriculture Research System(CARS-34);The starting project of high-level talents' scientific research in Shihezi University

不同添加剂对油莎豆青贮品质及有氧稳定性的影响

贺婷婷(), 王旭哲, 宋磊, 马春晖()   

  1. 石河子大学动物科技学院,新疆石河子 832003
  • 通讯作者: 马春晖
  • 作者简介:贺婷婷(1996-),女,四川广安人,硕士研究生,研究方向为饲草生产与加工,(E-mail) 2247528953@qq.com
  • 基金资助:
    国家牧草产业技术体系(CARS-34);石河子大学高层次人才科研启动项目

Abstract:

【Objective】 The purpose of this study is to analyze the effects of different additives on the quality change of Cyperus esculentus silage, so as to screen out suitable silage additives. 【Methods】 Three treatments with different additives were designed, which were 0.2% Lactobacillus plantarum (W1 treatment), 0.5% cellulase (W2 treatment), 0.2% Lactobacillus plantarum+0.5% cellulase (W3 treatment). CK was used as control treatment, which was added with crushed Cyperus esculentus, and the fermentation period was 60 days. The changes of dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), water-soluble carbohydrate (WSC), ammonia nitrogen (NH3-N) and pH value of each treatment on the 0 th, 7 th, 15 th, 30 th, 45 th and 60 th days during fermentation were detected and the internal temperature changes of silage of each treatment after pit opening were dynamically monitored. 【Results】 Silage fermentation time and three additive treatments showed significant interaction in pH, DM, CP, WSC and NH3-N of Cyperus esculentus silage (P< 0.01), and had significant influence on NDF and ADF (P<0.05). W3 had the lowest pH, NH3-N, NDF and ADF, and the highest CP, WSC and RFV contents. The stabilization time of W3 after aerobic exposure was significantly higher than that of other treatments (P< 0.05), reaching 115 hours. Comprehensive evaluation order was: W3 treatment > W1 treatment > W2 treatment > CK treatment. 【Conclusion】 All the three additives can effectively improve the quality of Cyperus esculentus silage, improve its nutritional value and prolong the aerobic stability time of silage, among which Lactobacillus plantarum (0.2%)+ cellulase (0.5%) has the best silage effect.

Key words: Cyperus esculentus; lactobacillus; cellulase; silage; aerobic stability

摘要:

【目的】分析不同添加剂对油莎豆(Cyperus esculentus)青贮品质变化的影响,筛选出适宜的青贮添加剂。【方法】设计3个不同添加剂处理,分别为0.2%植物乳杆菌(W1 处理)、0.5%纤维素酶(W2处理)、0.2%植物乳杆菌+ 0.5%纤维素酶(W3处理),以不添加为对照处理(CK),添加至粉碎的油莎豆中,共发酵60 d,检测发酵期间各处理的第 0、7、15、30、45和60 d的干物质(DM)、粗蛋白(CP)、中性洗涤纤维(NDF)、酸性洗涤纤维(ADF)、水溶性碳水化合物(WSC)、氨态氮(NH3-N)和pH值的变化,并动态监测开窖后各处理青贮内部温度变化规律,对比开袋前后的相对饲喂价值(RFV)。【结果】青贮发酵时间和3个添加剂处理在油莎豆青贮pH 、DM、CP、WSC、NH3-N均表现出极显著的交互作用(P<0.01),对 NDF、ADF有显著影响(P<0.05)。处理W3的pH、NH3-N、NDF和ADF最低,且CP、WSC、RFV含量最高;处理W3有氧稳定时间显著高于其它处理(P<0.05),达到115 h。综合评价排序W3处理>W1处理>W2处理>CK处理。【结论】3种添加剂均能有效改善油莎豆青贮品质,提高其营养价值,延长青贮有氧稳定性的时间,其中添加植物乳杆菌(0.2%)+纤维素酶(0.5%)的处理青贮效果最好。

关键词: 油莎豆, 乳酸菌, 纤维素酶, 青贮, 有氧稳定性

CLC Number: