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首页> 外文期刊>Proceedings of the New Zealand Grassland Association >Pasture silage in New Zealand - targets and current practice.
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Pasture silage in New Zealand - targets and current practice.

机译：新西兰的牧场青贮饲料-目标和当前做法。

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摘要

Targets for the quality of silage suitable for feeding to lactating dairy cows are presented, as recommended by a silage workshop held in Hamilton in 1994. National information from the Lincoln University Analytical Laboratory are presented which indicate that pasture silage made in the 1994/95 season was well preserved. However, most of the silage made in 1994/5 was below the quality set for lactating dairy cows. Averages for DM digestibility were 65.5-67.9%, estimated energy concentration was 9.3-9.6 MJ ME/kg DM, and crude protein was 14.6-15.1%. The success of preservation, silage quality, and the effects of management practices (e.g. N fertilizer application, cutting date, period between last grazing and cutting and period from cutting until the silage is covered) are assessed and presented. Silage making practices were analysed, based on silage samples entered in the 1994/95 Livestock Improvement Advisory silage competition. It is suggested that the key to high quality pasture silage in the1994/95 season was the practice of cutting the sward by the first week in Nov. and that N fertilizer may be used to produce early surplus pasture without restricting the feed supply to grazing cows.
机译：根据1994年在汉密尔顿举行的青贮饲料讲习班的建议，提出了适合饲喂哺乳奶牛的青贮饲料的质量目标。林肯大学分析实验室提供的全国信息也表明了1994/95年度的牧场青贮饲料保存完好。但是，1994/5年生产的大多数青贮饲料均低于泌乳奶牛设定的质量。 DM消化率的平均值为65.5-67.9％，估计的能量浓度为9.3-9.6 MJ ME / kg DM，粗蛋白为14.6-15.1％。评估并介绍了保鲜效果，青贮饲料质量以及管理实践的效果（例如氮肥施用，切割日期，最后一次放牧和切割之间的时间以及从切割到覆盖青贮饲料的时间）。根据1994/95年家畜改良咨询青贮饲料比赛中输入的青贮饲料样品，分析了青贮饲料的生产做法。有人认为，1994/95年度高质量青贮青贮饲料的关键是在11月的第一个星期削减草皮的做法，并且可以使用氮肥来生产早期过剩的牧草，而不限制放牧母牛的饲料供应。 。

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