Department of Animal Production, Fisheries and Aquaculture, College of Agriculture, Kwara State University, Malete, Nigeria.
Department of Animal Sciences, Obafemi Awolowo University, Ile-Ife, Nigeria.
Trop Anim Health Prod. 2022 Mar 31;54(2):153. doi: 10.1007/s11250-022-03149-z.
The study investigated the nutritive composition as well as acceptability of ensiled roughages comprising Andropogon gayanus (AG), maize husk (MH), maize stover (MS) and their mixtures in equal proportion with Tephrosia bracteolata (TB) by West African Dwarf (WAD) sheep. Seven treatment diets were formulated comprising AG: 100% Andropogon gayanus, MH: 100% maize husk, MS: 100% maize stover, TB: 100% Tephrosia bracteolata, AG + TB: 50% Andropogon gayanus + 50% Tephrosia bracteolata, MS + TB: 50% maize husk + 50% Tephrosia bracteolata, MS + TB: 50% maize stover + 50% Tephrosia bracteolata. The experiment was completely randomized in design. Significant variations were observed in the chemical composition of the plant materials before and after ensiling. It was revealed that Tephrosia bracteolata, prior to ensiling, had the highest crude protein (CP) content, lowest crude fibre (CF), neutral detergent fibre (NDF), acid detergent fibre (ADF) and acid detergent lignin (ADL). Similar trend was observed in the chemical composition of Tephrosia bracteolata after ensiling. Inclusion of Tephrosia bracteolata in the roughages improved their nutritional quality. All the silage treatments presented good physical characteristics. The acceptability of the silage by 12 WAD sheep ranked thus: TB > MS + TB > AG + TB > AG > MS > MH + TB > MH. Silage digestibility was highest (66.60%) in TB, closely followed by MH + TB (62.67%) and least in MS. It was concluded that WAD sheep production could be enhanced by feeding ensiled maize plant residues alone or in combination with Tephrosia bracteolata during the lean season.
本研究调查了由非洲黍（AG）、玉米苞叶（MH）、玉米秸秆（MS）和它们以等比例混合的青贮粗饲料以及与 Tephrosia bracteolata（TB）混合的青贮粗饲料在西非德牧羊（WAD）中的营养成分和可接受性。该研究设计了 7 种处理日粮，包括 AG：100%非洲黍、MH：100%玉米苞叶、MS：100%玉米秸秆、TB：100% Tephrosia bracteolata、AG + TB：50%非洲黍+50% Tephrosia bracteolata、MS + TB：50%玉米苞叶+50% Tephrosia bracteolata、MS + TB：50%玉米秸秆+50% Tephrosia bracteolata。该实验采用完全随机设计。在青贮前后，植物材料的化学成分发生了显著变化。结果表明，在青贮前，Tephrosia bracteolata 具有最高的粗蛋白（CP）含量，最低的粗纤维（CF）、中性洗涤剂纤维（NDF）、酸性洗涤剂纤维（ADF）和酸性洗涤剂木质素（ADL）。在青贮后，Tephrosia bracteolata 的化学成分也呈现出类似的趋势。在粗饲料中添加 Tephrosia bracteolata 可提高其营养价值。所有青贮处理均具有良好的物理特性。12 只 WAD 羊对青贮饲料的可接受性排名如下：TB > MS + TB > AG + TB > AG > MS > MH + TB > MH。TB 的青贮消化率最高（66.60%），其次是 MH + TB（62.67%），最低的是 MS。研究结果表明，在淡季期间，WAD 羊的生产可以通过单独或组合青贮玉米植物残体与 Tephrosia bracteolata 来提高。
