Nutritional evaluation of barley forage varieties for silage

青贮大麦饲料品种的营养评价

• 批准号: 460779-2013
• 负责人: McKinnon, John
• 金额: $ 1.49万
• 依托单位: University of Saskatchewan
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=597824
• 关键词: Nutritional; evaluation; barley; forage; varieties

This research will provide beef producers with advanced feed quality information on barley forage varieties commonly grown for silage, particularly the degree of variation that exists within and between varieties for the extent and rate of rumen neutral detergent fibre (cell wall) degradability. Further, it will point to the value of growing specific barley varieties for silage that have been selected for increased rates of neutral detergent fibre degradability. For example, knowledge of within and between variety differences in barley forage neutral detergent fibre degradability can lead to selection of barley varieties for silage by beef producers for use in backgrounding and finishing programs with improved digestibility that results in reduced manure output and potentially reduced methane emissions. Selection of barley forage varieties that have greater feed value will also improve animal performance, particularly feed efficiency and reduce the cost of gain in backgrounding and finishing programs by allowing for a greater proportion of silage to be fed. This will not only reduce the need for supplementing with cereal grains, but will also reduce the cost of supplemention. The research will also be of value to barley breeding programs, providing detailed nutritional knowledge on barley varieties for forage. This information can be used to develop new varieties for silage through improved selection decisions. Successful achievement of our research objectives will positively impact Canadian agriculture regionally and nationally. Regionally, western Canadian beef producers will be more profitable due to lower feed and manure handling costs, while grain growers and seed companies will see increased demand for barley as a forage crop. Nationally, a stronger western Canadian beef and forage sector translates to increased economic activy and revitilization in the rural economy. The project will also lead to the training of two highly qualified personnel who will go on to positively impact Canadian agriculture through academic, industrial or government channels.

这项研究将为牛肉生产商提供有关大麦饲料品种通常用于青贮饲料的先进饲料质量信息，尤其是在品种内和之间存在的变化程度，瘤胃中性洗涤剂纤维（细胞壁）的降解性的含量。此外，它将指出，已选择增长的中性洗涤剂纤维降解速率的特定大麦品种的价值。例如，对大麦饲料中性洗涤剂纤维降解性的多样性差异的知识可能会导致选择大麦品种用于牛肉生产商的青贮饲料，用于在背景和精加工计划中具有改善的消化率，从而减少肥料的输出，并可能降低甲烷的排放量。选择具有更高饲料价值的大麦饲料品种也将提高动物性能，尤其是饲料效率，并通过允许更大比例的青贮饲料喂食，从而降低背景和完成计划中的增益成本。这不仅会减少补充谷物的需求，而且还将降低补充成本。这项研究还将对大麦育种计划具有价值，从而为大麦品种提供详细的营养知识。这些信息可用于通过改进的选择决策来开发新品种，以用于青贮饲料。成功实现我们的研究目标将对加拿大农业产生积极影响。在区域性上，由于较低的饲料和粪便处理成本，加拿大西部牛肉生产商将更加有利可图，而谷物种植者和种子公司将认为对大麦的需求增加是一种草料作物。在全国范围内，加拿大西部牛肉和饲料部门的强大，这转化为农村经济中的经济活动和振兴。该项目还将导致对两名高素质的人员进行培训，这些人员将通过学术，工业或政府渠道继续对加拿大农业产生积极影响。