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近几年来,国外对改善粗饲料品质问题的注意力在明显提高。这是因为:从经济的、生理的和家畜饲养的角度来看,一方面对反刍家畜日粮中干草、青贮,半干贮饲料适宜比例的问题在重新评价;另一方面对精料适宜比例的问题也在重新评价。考虑到在其他条件相同时,粗饲料质量的优劣可决定畜牧业生产效率的高低,因而最大限度利用粗饲料的原则,就成为目前家畜饲养体系的基础。在各项技术措施中,对粗饲料品质影响最大的措施,专家们一致认为是适时收获。饲用植物适时刈割,在很大程度上能保证获得能量和蛋白质含量均高的优质饲料,并为多年生植物或补播饲料作物的最快再生创造
In recent years, foreign attention to improving the quality of roughage has been significantly improved. This is because: on the one hand, the appropriate proportion of hay, silage and semi-dry stocks of ruminant livestock diets is re-evaluated on the one hand from the economic, physiological and livestock rearing perspectives; on the other hand, The issue is also re-evaluation. Taking into account the other conditions are the same, the quality of roughage can determine the level of livestock production efficiency, so the principle of maximizing the use of roughage, has become the basis of the current system of livestock breeding. Among the various technical measures, the measures that have the greatest impact on the quality of roughage were agreed upon by experts as timely harvests. The timely cutting of forage plants guarantees to a large extent the availability of high-quality forage with high energy and protein content and the fastest regeneration of perennial or sow-reefer crops