苏南农区畜牧业,正逐渐向节粮型的商品养殖业转化,尤以城郊型奶牛业和人工淡水渔业的发展最为迅速。为节约粮食,降低饲养成本,在不与粮争地的前提下,利用丘陵坡地,农田隙地,鱼塘圩埂,种植优质牧草,以草换奶、换鱼、换肉,在土地资源珍贵的苏南农区具有特殊意义。 优良的牧草品种,是建植集约化草地的基础。本所自1981年以来,进行了种草养牛、种草养鱼的模拟试验。结果认为杂交狼尾草具有高产、优质、耐高温和供草期长等 The livestock husbandry in the southern part of Jiangsu Province is being gradually transformed into grain-saving commercial aquaculture, with the most rapid development in suburban dairy cattle and artificial freshwater fisheries. In order to save grain and reduce the cost of keeping land, we should make use of hilly slopes, farmland gaps, pond ponds, planting high-quality forage grass, changing grass with milk, changing fish and changing meat, Sunan agricultural area has special significance. Good forage varieties, is to build intensive grassland basis. Since 1981, we have conducted simulated experiments of raising grass and raising fish. The results showed that hybrid Pennisetum with high yield, high quality, high temperature and grass for long and so on