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Herbage yield and quality of Megathyrsus cultivars in Northeast Thailand

机译：泰国东北地区甲状腺素种类的牧草产量和品质

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A field trial in Northeast Thailand during 2015?2018 evaluated the forage accumulation and nutritive value of 5 Megathyrsus cultivars, Mombasa, Tanzania, Massai, Zuri and Mun River. Mombasa and Tanzania are commonly grown in Thailand, but Massai, Zuri and Mun River had not been evaluated in Thailand before. Overall accumulated DM yields for the various cultivars over the 3 years were 24,550 kg/ha for Tanzania, 30,900 kg/ha for Massai, 32,700 kg/ha for Mombasa, 35,600 kg/ha for Mun River and 35,700 kg/ha for Zuri. Over 3 wet seasons, Mun River and Zuri accumulated 49% more total DM and Mombasa 35% more total DM than Tanzania. Massai accumulated lower total DM yields than Zuri and Mun River in the second and third wet seasons, similar yields to Mombasa, and higher yields than Tanzania in those 2 seasons. Crude protein concentrations in forage were higher in the dry season than in the wet season and in leaves than in stems. There were no consistent differences in CP% of the various cultivars in wet or dry seasons. ADF and NDF concentrations in the dry season were lower than those in the wet season and leaf ADF and NDF concentrations were lower than concentrations in stems. There were no consistent differences of ADF and NDF concentrations between cultivars throughout the study. This trial showed that both Zuri and Mun River would be ideal replacements for Mombasa and Tanzania in Northeast Thailand, as they would appeal to smallholder farmers for cut-and-carry forage with their upright, broad leaves, and at least similar DM production to Mombasa and superior DM production to Tanzania.
机译：2015年东北泰国的野外审判2018年评估了5兆甲板品种，蒙巴萨，坦桑尼亚，马鞍山，苏里和门河的饲料累积和营养价值。蒙巴萨和坦桑尼亚通常在泰国种植，但是在泰国之前没有在泰国评估的Massai，Zuri和Mun River。坦桑尼亚的各种品种的总体累计DM产量为24,550公斤/公顷，为Massai，32,700公斤/公顷，蒙巴萨32,700公斤/公顷，为Mun河，35,600公斤/公顷，ZURI为35,700公斤/公顷。超过3个潮湿的季节，Mun River和Zuri累计了49％，总DM和MOMBASA总量比坦桑尼亚更多DM。 Massai在第二和第三个潮湿的季节中累积了低于Zuri和Mun河的DM产量，与蒙巴萨相似的收益率，比这两个赛季的坦桑尼亚更高的收益率。鼻子中粗蛋白质浓度高于湿季节和叶子而不是茎。潮湿或干燥季节的各种品种的CP％没有一致的差异。干燥季节的ADF和NDF浓度低于湿季节，叶ADF和NDF浓度低于茎的浓度。在整个研究中，品种之间的ADF和NDF浓度没有一致的差异。这项试验表明，苏里和门河都将成为泰国东北部和坦桑尼亚的理想替代品，因为他们将呼吁小农农民与他们直立，宽阔的叶子和至少类似的DM生产到MOMBASA和坦桑尼亚的优越DM生产。

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