中国农业科学 ›› 2025, Vol. 58 ›› Issue (19): 4026-4038.doi: 10.3864/j.issn.0578-1752.2025.19.017

• 畜牧·兽医 • 上一篇    

内蒙古中部地区饲用燕麦品种筛选及青贮品质评价

任家辉1,2(), 孙娟娟1,2(), 郝莹璐1,2, 王凤梧3, 王靖宇4, 张明伟4, 李宝涵4, 郑成忠3, 何竹青3, 王照兰1,2   

  1. 1 中国农业科学院草原研究所,呼和浩特 010010
    2 北方农牧业技术创新中心,呼和浩特 010111
    3 乌兰察布市农林科学研究所,内蒙古乌兰察布 012000
    4 兴安盟农牧科学研究所,内蒙古兴安盟 137400
  • 收稿日期:2025-03-28 接受日期:2025-07-17 出版日期:2025-10-01 发布日期:2025-10-10
  • 通信作者:
    孙娟娟,E-mail:
  • 联系方式: 任家辉,E-mail:2559512968@qq.com。
  • 基金资助:
    中央级公益性科研院所基本科研业务费专项(Y2025CY40); 内蒙古燕麦藜麦现代农牧业产业技术体系(IMARS-03-G-08); 2024年乌兰察布市“科技兴蒙”创新平台后补助项目

Screening of Feed Oat Varieties and Its Evaluation of Silage Quality in Central Inner Mongolia

REN JiaHui1,2(), SUN JuanJuan1,2(), HAO YingLu1,2, WANG FengWu3, WANG JingYu4, ZHANG MingWei4, LI BaoHan4, ZHENG ChengZhong3, HE ZhuQing3, WANG ZhaoLan1,2   

  1. 1 Institute of Grassland Research, Chinese Academy of Agricultural Sciences, Hohhot 010010
    2 Northern Agriculture and Livestock Husbandry Technology Innovation Center, Hohhot 010111
    3 Ulanqab Institute of Agriculture and Forestry Sciences, Ulanqab 012000, Inner Mongolia
    4 Xing'an League Institute of Agriculture and Animal Husbandry, Xing'an League 137400, Inner Mongolia
  • Received:2025-03-28 Accepted:2025-07-17 Published:2025-10-01 Online:2025-10-10

摘要:

【目的】随着草牧业的不断推进,内蒙古中部地区优质饲用燕麦品种缺乏,尤其是青贮型饲用燕麦种质资源匮乏,通过对不同燕麦品种营养成分和青贮品质的分析,筛选适宜该地区推广种植的优质饲用燕麦及青贮型饲用燕麦品种。【方法】筛选9个饲用燕麦品种蒙饲燕2号(Mengsi Yan No. 2)、禾王(Dictator)、麦迪逊(Madison)、福星(Fuxing)、黑玫克(Haymaker)、凯撒(Caesar)、甜燕1号(Tianyan No. 1)、大瀑布(Waterfall)、牧乐思(Molasses),种植于中国农业科学院草原研究所农牧交错区试验基地,在乳熟期刈割测定产量,聚乙烯饲料袋装填青贮饲料并抽真空密封,室温贮藏120 d。分析饲用燕麦青贮前后营养成分以及青贮饲料发酵品质、微生物数量。【结果】不同品种饲用燕麦在内蒙古中部地区的产量、营养价值和青贮发酵品质差异显著(P<0.05)。9个饲用燕麦品种的鲜草产量为40.20—59.54 t•hm-2,蒙饲燕2号鲜草产量最高,为59.54 t•hm-2;9个饲用燕麦品种原料的干物质含量为31.53%—41.32%,粗蛋白含量最高的福星(13.75%)比最低的麦迪逊(7.04%)高95.31%;可溶性碳水化合物含量均较低,最高的为牧乐思(4.83%);凯撒和福星的中性洗涤纤维含量显著低于其他品种(P<0.05),禾王的酸性洗涤纤维含量最高为37.07%,与其他品种存在显著差异(P<0.01)。青贮120 d后,品种间营养成分差异仍然显著(P<0.05);凯撒的干物质含量最高,福星的粗蛋白含量为11.98%,显著高于其他品种(P<0.05)。麦迪逊的可溶性碳水化合物含量最高,福星的中性、酸性洗涤纤维均为最低,显著低于其他品种(P<0.05);其中福星的粗灰分为7.81%,显著高于其他品种(P<0.05)。不同品种的发酵品质也存在显著差异,福星的pH最低,乳酸含量最高,未检测到丁酸,氨态氮含量最低,乳酸菌数量较高。根据Kaiser评价体系评价,福星级别为1,发酵品质最好,其他品种发酵品质较差。冗余分析结果显示原料营养品质共同解释了青贮发酵品质变异的80.01%。其中粗蛋白贡献率最高,酸性洗涤纤维与青贮品质存在显著差异(P<0.01)。皮尔森相关性结果显示原料营养品质显著影响青贮发酵品质,其中粗蛋白,中性、酸性洗涤纤维和粗灰分是影响发酵品质的主要因素。【结论】综合考虑产量、营养品质和发酵品质,福星可作为内蒙古中部地区春播青贮型饲用燕麦品种。

关键词: 饲用燕麦, 品种, 青贮, 营养品质, 发酵品质

Abstract:

【Objective】With the continuous advancement of grass animal husbandry, there is a shortage of high-quality feed oat varieties in central Inner Mongolia, especially the lack of silage feed oat germplasm resources. Through the analysis of nutritional components and silage quality of different oat varieties, the high quality oat and silage oat varieties suitable for planting in this area were selected.【Method】In this study, 9 feed oat varieties, including Mengsi Yan No. 2, Dictator, Madison, Fuxing, Haymaker, Caesar, Tianyan No. 1, Waterfall, and Molasses, were screened. They were planted in the experimental base of the agro-pastoral ecotone of the Grassland Research Institute of the Chinese Academy of Agricultural Sciences. The yield was measured by mowing at the milk maturity stage, filling the polyethylene feed bag with silage and vacuum sealing it, storing it at room temperature for 120 days. The nutrient composition of feed oat silage before and after silage, the fermentation quality of silage and the number of microorganisms were analyzed.【Result】There were significant differences in yield, nutritional value and silage fermentation quality among different varieties of feed oats in central Inner Mongolia (P<0.05). The yield of fresh grass in the nine feed oat varieties was 40.20-59.54 t•hm-2, and the yield of fresh grass in Mengsi Yan No. 2 was the highest (59.54 t•hm-2), while the dry matter content of the raw materials of the nine feed oat varieties was 31.53%-41.32%, and the Fuxing (13.75%) with the highest crude protein content was 95.31% higher than that of Madison (7.04%). The content of soluble carbohydrates was low, and the highest was Molasses (4.83%). The content of neutral detergent fiber in Caesar and Fuxing was significantly lower than that of other varieties (P<0.05), and the highest content of acid detergent fiber in Dictator was 37.07%, which was significantly different from other varieties (P<0.01). After 120 days of silage, there was still a significant difference in nutrient composition between varieties (P<0.05). The dry matter content of Caesar was the highest, and the crude protein content of Fuxing was 11.98%, which was significantly higher than that of other varieties (P<0.05). The content of soluble carbohydrates in Madison was the highest, and the neutral and acidic detergent fibers of Fuxing were the lowest, which were significantly lower than those of other varieties (P<0.05). The crude ash fraction of Fuxing was 7.81%, which was significantly higher than that of other varieties (P<0.05). There were also significant differences in the fermentation quality of different varieties, with Fuxing having the lowest pH, the highest lactic acid content, no butyric acid detected, the lowest ammonia nitrogen content, and a higher number of lactic acid bacteria. According to the evaluation system of Kaiser, the Fuxing grade was 1, and the fermentation quality was the best, while the fermentation quality of other varieties was poor. The results of redundancy analysis showed that the nutritional quality of raw materials jointly explained 80.01% of the variation of silage fermentation quality. Among them, the contribution rate of crude protein was the highest, while there was a significant difference between acid detergent fiber and silage quality (P<0.01). The results of Pearson correlation showed that the nutritional quality of raw materials significantly affected the fermentation quality of silage, and crude protein, neutral and acidic detergent fiber and crude ash were the main factors affecting the fermentation quality.【Conclusion】Considering the yield, nutritional quality and fermentation quality, Fuxing could be used as a spring-sown silage feed oat variety in central Inner Mongolia.

Key words: feed oats, variety, silage, nutritional quality, fermentation quality