The rumen digestion of dry matter, nitrogen and cell wall constituents of the pods of Leucaena leucocephala and some Acacia species
The rumen digestion of dry matter, nitrogen and cell wall constituents of the pods of Leucaena leucocephala and some Acacia species
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银合欢和一些金合欢属豆荚的干物质、氮和细胞壁成分的瘤胃消化
DOI：
10.1002/jsfa.1008
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发表时间：
2002
影响因子：
4.1
通讯作者：
M. Bonsi
中科院分区：
文献类型：
--
作者：
A. Ngwa;I. Nsahlai;M. Bonsi
研究了在泽西牛瘤胃中孵化的银合欢和一些金合欢属物种的豆荚中干物质（DM）、氮和细胞壁成分的消失。分别检查豆荚（种子+外壳）、种子和外壳的化学成分。氨基酸和脂质分析仅限于豆荚和种子，而矿物质和单宁分析仅对豆荚进行。种子的粗蛋白 (CP) 含量高于豆荚，其值范围为 200 至 300 gCPkg 1 DM 银合欢豆荚和种子的 CP 含量高于 (p > 0.001) 金合欢豆荚和种子。果壳中的中性洗涤纤维浓度高于豆荚和种子中的中性洗涤纤维浓度，其中杏花豆荚的值最高，尼罗罗豆荚的值最低。这些值很大程度上受种皮比例的影响。西伯利亚和银合欢分别具有最高和最低的缩合单宁浓度。玉米角豆和卡鲁角豆的豆荚尤其富含常量和微量矿物质，而其他豆荚则含有足够的量，可以大大满足小型反刍动物的饮食需求。豆荚中的氨基酸浓度差异显着（p < 0.05）。结果表明，这些豆荚可以作为饲喂粗饲料的反刍动物宝贵的氮和矿物质来源。金合欢属植物、豆科植物、非洲地区的主要植物以及反刍动物营养的重要组成部分。 Leucaena est une 豆类使用 ayant un fort rendement sur les sols fertiles et dont le feuillage Presente d'excellentes proprietes 营养物质。 Les objectifs de cette etude sont d'examiner les proprietes chimiques et de degradation de 6 pegumineuses arbustives (5 especes d'Acacia et Leucaena leucocephala)。牛瘤胃中的物质、氮素和细胞成分的差异。其结果是为反刍动物提供有趣的氮和矿物来源的植物。
The disappearance of dry matter (DM), nitrogen and cell wall constituents of the pods of Leucaena leucocephaia and some Acacia species incubated in the rumen of Jersey cattle was studied. The chemical compositions of the pods (seeds + husks), seeds and husks were examined separately. Amino acid and lipid analyses were limited to the pods and seeds, while mineral and tannin analyses were done on the pods alone. The seeds had higher crude protein (CP) contents than the pods, with values ranging from 200 to 300 gCPkg 1 DM The Leucaena pods and seeds had higher (p > 0.001) CP contents than the Acacia pods and seeds. The neutral detergent fibre concentrations in the husks were higher than in the pods and seeds with the pods of A erioloba having the highest and those of A nilotica the lowest values. These values were highly influenced by the seedlhusk ratio. A sieberiana and Leucaena had the highest and lowest concentrations of condensed tannins respectively. The pods of A tortilis and A karoo were particularly rich in macro- and micro-minerals, while the others contained sufficient quantities that could contribute substantially to the dietary requirements of small ruminants. The amino acid concentrations differed significantly (p 0.05) among the pods. The results show that these pods can serve as a valuable source of nitrogen and minerals for ruminants fed roughage-based diets. Les especes d'Acacia, legumineuse arbustive, sont predominants dans la plupart des zones seches d'Afrique et constituent un composant important de l'alimentation des ruminants. Leucaena est une legumineuse ayant un fort rendement sur les sols fertiles et dont le feuillage presente d'excellentes proprietes nutritives. Les objectifs de cette etude sont d'examiner les proprietes chimiques et de degradation de 6 legumineuses arbustives (5 especes d'Acacia et Leucaena leucocephala). La disparition de la matiere seche, de l'azote et des constituants cellulaires des gousses de ces plantes incubees in sacco dans le rumen de bovin est etudiee. Les resultats montrent que ces plantes peuvent servir de source interessante d'azote et de mineraux pour les ruminants.