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Nutritive value of some tropical grasses used by traditional small farms in the highlands of Burundi

机译：布隆迪高地传统小农场使用的一些热带草的营养价值

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The objective was to estimate—according to the French feeding system—the nutritive value of three tropical grasses (Eragrostis olivacea, Setaria sphacelata and Tripsacum laxum) used in traditional small farms of Burundi. Dry matter (DM) yield was monitored on anti-erosive hedges or on small fields in 60 small farms for eight consecutive years. DM intake and digestibility values were measured on seven steers or seven male sheep. Degradability values were determined on three sheep. S. sphacelata exhibited higher DM yield (t ha−1), energy (UF, kg−1 DM) and protein (PDI, g kg−1 DM) values (17.3, 0.73 and 68, respectively) than T. laxum (9.11, 0.64 and 47) and E. olivacea (not determined, 0.46 and 42). The UF and PDI intakes of these grass species were able to meet only 51% to 92% of the energy and 59% to 133% of the protein requirements for maintenance of the experimental animals.
机译：目的是根据法国的饲喂系统，估计在布隆迪传统小农场中使用的三种热带草（Eragrostis olivacea，Setaria sphacelata和Tripsacum laxum）的营养价值。连续八年在60个小型农场的防侵蚀树篱或小田地上监测干物质（DM）的产量。在7头公牛或7头公绵羊上测量DM的摄入量和消化率。测定三只绵羊的可降解性值。 s.sphacelata的DM产量（t ha -1 ），能量（UF，kg -1 DM）和蛋白质（PDI，g kg −1 < DM）值（分别为T.laxum（9.11、0.64和47）和E.olivacea（未测定的0.46和42））（分别为17.3、0.73和68）。这些草种的超滤和PDI摄入量只能满足维持实验动物所需的51％至92％的能量和59％至133％的蛋白质。

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