西北旱作区小黑麦、黑麦的生产性能及营养价值研究

Study on forage yield and nutritional value of triticale and rye in northwest dry farming area

研究旨在筛选出适宜西北旱作区种植的禾本科牧草新品种。试验对2种禾本科牧草(小黑麦和黑麦)的生产性能及营养成分进行测定,并对其进行综合评价。结果显示:小黑麦的鲜草产量、干草产量、粗蛋白含量、干物质消化率和相对饲喂价值均高于黑麦,中性洗涤纤维和酸性洗涤纤维含量均低于黑麦。8个参试品种中,甘农2号小黑麦的鲜草产量、干草产量、粗蛋白含量、干物质消化率和相对饲喂价值均最高,分别为50.10 t/hm2、17.92 t/hm2、12.36%、64.20%和106.87,中性洗涤纤维和酸性洗涤纤维含量最低,分别为55.90%和31.70%。研究表明,甘农2号小黑麦的草产量、营养价值高,适宜在西北旱作区推广种植。

The study was to screen new varieties of gramineous grass suitable for planting in the northwest dry farming area.The performance and nutrient composition of two grasses(triticale and rye)were measured and evaluated comprehensively.The results showed that the fresh grass yield,hay yield,CP content,DMD and RFV of triticale were higher than those of rye,while the NDF and ADF content of triticale were lower than those of rye.Among eight varieties tested,Gannong 2 triticale had the highest fresh grass yield,hay yield,CP content,DMD and RFV,which were 50.10 t/hm2,17.92 t/hm2,12.36%,64.20%and 106.87,respectively,and the lowest NDF content and ADF content,which were 55.90%and 31.70%,respectively.The study indicates that Gannong 2 triticale had good forage yield and nutritional value,which was suitable for popularization in the northwest dry farming area.