多用途树种被认为是牲畜的重要饲料来源,但是由于缺乏有关其营养价值的知识,它们的潜力仍未开发。因此,15个MPT,即,相思树,混血儿,紫荆,澳大利亚Celtis,无花果,Grewiaoptiva,银合欢白头鱼,梅莉亚作曲家,锯树,油橄榄,Ougieniaoojeinensis,荧光假单胞菌,葛兰,Q.对白色果和柳叶进行了营养特性评估,相对营养价值指数(RNVI),喜马拉雅山西北部中部丘陵的适口性指数和农民的季节性偏好。除乙醚提取物外,大多数营养和矿物质含量随着叶子的成熟而下降,钙,铜,有机物和碳水化合物含量,而细胞壁成分和抗营养成分增加。总的来说,M.serrata在春季和夏季的RNVI最高,而G.optiva在秋季和冬季。同样,L.leufocephala具有最高的适口性(97.86%),而M.composita(38.47%)的最低。此外,G.optiva是农民中最喜欢的牲畜MPT,而作曲家是最不重要的。研究结果将有助于政策制定者,规划者和农场管理者在建立高营养和可口物种的大规模种植园时,像G.optiva,L.白头鱼,B.variegata,和M.serrata全年供应绿叶,并作为低质量饲料的补充。
Multipurpose tree species are recognized as an important fodder source for livestock, but their potential remains untapped due to dearth of knowledge about their nutritive value. Therefore, 15 MPTs, i.e., Acacia catechu, Albizia chinensis, Bauhinia variegata, Celtis australis, Ficus roxburghii, Grewia optiva, Leucaena leucocephala, Melia composita, Morus serrata, Olea glandulifera, Ougienia oojeinensis, Pittosporum floribundum, Quercus glauca, Q. leucotrichophora and Salix tetrasperma were evaluated for nutritional characteristics, relative nutritive value index (RNVI), palatability index and farmers\' preference on a seasonal basis in north-western Himalayas mid-hills. Most of the nutritive and mineral content decreased as leaves matured with the exception of ether extract, calcium, copper, organic matter and carbohydrate content, while cell-wall constituents and anti-nutritional contents increased. Overall, M. serrata had the highest RNVI in spring and summer, while G. optiva during autumn and winter. Similarly, L. leucocephala had the highest palatability (97.86%), while M. composita (38.47%) had the lowest one. Additionally, G. optiva was the most favored MPT for livestock among farmers, while M. composita was the least ones. The outcome of the study will help policy makers, planners and farm managers in establishing large scale plantations of highly nutritious and palatable species, like G. optiva, L. leucocephala, B. variegata, and M. serrata for year-round supply of green leaves and as a supplement to low-quality feed.