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Nutritional properties of some browse species used as goat feed in Pastoral dry lands, Uganda
Agroforestry Systems ( IF 2.2 ) Pub Date : 2019-12-11 , DOI: 10.1007/s10457-019-00452-x
David Nsubuga , Dorothy Kalule Nampanzira , Charles Masembe , Vincent B. Muwanika

The nutritional properties of leaves of ten browse species commonly used as goat feed in pastoral drylands of Uganda were evaluated by determining their chemical composition and in vitro gas production. Dry matter (DM) content ranged between 896 and 914 g kg −1 DM and was not significantly different ( P > 0.05) among the browse species. There was a wide variation in the crude protein (CP) content of the browse species. The highest CP values were observed in Acacia compylacantha , Acacia fruiticosa and Acacia senegal , with 365, 247 and 245 g kg −1 DM respectively, while the lowest was observed in Ganisa similis (150 g kg −1 DM). The NDF values were highest in A. senegal (343 g kg −1 DM) and lowest in A. compylacantha (151 g kg −1 DM). There was no significant difference ( P > 0.05) in the gas kinetics and total volume of gas produced by the browse species. The calculated organic matter digestibility (OMD) was highest ( P < 0.05) in Cadaba farinosa (92.5%) and lowest in Dichrostachys cinerea (72.5%). Similarly, the metabolizable energy (ME) was highest ( P < 0.05) in C. farinosa (13.7 MJ kg −1 ) and lowest in D. cinerea (10.7 MJ kg −1 ). Total gas had a positive correlation with OMD (r = 0.51, P < 0.05) and ME (r = 0.52, P < 0.01). Strong positive correlation was observed between OMD and ME (r = 0.998, P < 0.001). In conclusion, these browse species have sufficient CP and ME required by growing goats under dryland conditions.

中文翻译:

乌干达牧区旱地用作山羊饲料的一些浏览物种的营养特性

通过测定其化学成分和体外产气量,评估了乌干达牧区旱地常用作山羊饲料的十种草叶的营养特性。干物质 (DM) 含量介于 896 和 914 g kg -1 DM 之间,并且在浏览物种之间没有显着差异( P > 0.05)。浏览物种的粗蛋白(CP)含量存在很大差异。CP 值最高的是金合欢、Acaciafruiticosa 和 Acacia senegal,分别为 365、247 和 245 g kg -1 DM,而最低的是 Ganisa similis(150 g kg -1 DM)。NDF 值在 A. senegal (343 g kg -1 DM) 中最高,在 A. compylacantha (151 g kg -1 DM) 中最低。无显着差异( P > 0。05) 在气体动力学和浏览物种产生的气体总体积中。计算出的有机物消化率 (OMD) 在 Cadaba farinosa (92.5%) 中最高 (P < 0.05),在 Dichrostachys cinerea (72.5%) 中最低。类似地,C. farinosa(13.7 MJ kg -1 )的代谢能(ME)最高(P < 0.05),D. cinerea(10.7 MJ kg -1 )最低。总气体与 OMD (r = 0.51, P < 0.05) 和 ME (r = 0.52, P < 0.01) 呈正相关。在 OMD 和 ME 之间观察到强正相关(r = 0.998,P < 0.001)。总之,这些浏览物种具有在旱地条件下饲养山羊所需的足够 CP 和 ME。C. farinosa (13.7 MJ kg -1 ) 的代谢能 (ME) 最高( P < 0.05), D. cinerea 最低(10.7 MJ kg -1 )。总气体与 OMD (r = 0.51, P < 0.05) 和 ME (r = 0.52, P < 0.01) 呈正相关。在 OMD 和 ME 之间观察到强正相关(r = 0.998,P < 0.001)。总之,这些浏览物种具有在旱地条件下饲养山羊所需的足够 CP 和 ME。C. farinosa (13.7 MJ kg -1 ) 的代谢能 (ME) 最高( P < 0.05), D. cinerea 最低(10.7 MJ kg -1 )。总气体与 OMD (r = 0.51, P < 0.05) 和 ME (r = 0.52, P < 0.01) 呈正相关。在 OMD 和 ME 之间观察到强正相关(r = 0.998,P < 0.001)。总之,这些浏览物种具有在旱地条件下饲养山羊所需的足够 CP 和 ME。
更新日期:2019-12-11
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