TY - JOUR
T1 - Productivity, nutritive value and economic potential of irrigated fodder in two regions of Ghana
AU - Adegoke, Amole T.
AU - Emmaunel, Panyan
AU - Adetayo, Adekeye
AU - Augustine, Ayantunde
AU - Duncan, Alan
AU - Blummel, Michael
PY - 2021/11/2
Y1 - 2021/11/2
N2 - An on-farm study was conducted in the Northern and Upper East regions of Ghana to investigate the productivity and nutritive value of irrigated Urochloa ruziziensis (syn. Brachiaria ruziziensis) and Sorghum almum grasses as options against dry season feed-scarcity and to understand associated market opportunities. Sixty participating farmers each established 100-m2
plots which were sown at 15 kg ha22 1
drilled in 60-cm rows in the dry season of 2016 and 2017. Irrigation was by flooding of soil surface every alternate day throughout the period of the trial. At both regions, herbage accumulation and nutritive value of forage species were determined at four harvesting stages: 4, 8, 12, and 16 weeks after planting (WAP) followed by 4-week intervals between harvests. At the end of the trial, fresh biomass was weighed, bundled and sold in major livestock feed markets to estimate market price. Allowing forages to establish for only 8 weeks resulted in two 4-week regrowth harvests with dry matter accumulation (DMA) ranging from 4.5 to 8.1 Mg DM ha-1 from both species and in both regions. Generally, herbage nutritive values in terms of crude protein, metabolizable energy concentration, and in vitro digestible organic matter (IVDOM) declined (P<0.05) while DMA increased linearly with delay in harvest. While both grasses adapted well in the regions under irrigation, 8WAP harvests provided the best balance between nutritive value and DMA. Irrigated fodder must be marketed more effectively since currently market prices are not closely related to nutritive value.
AB - An on-farm study was conducted in the Northern and Upper East regions of Ghana to investigate the productivity and nutritive value of irrigated Urochloa ruziziensis (syn. Brachiaria ruziziensis) and Sorghum almum grasses as options against dry season feed-scarcity and to understand associated market opportunities. Sixty participating farmers each established 100-m2
plots which were sown at 15 kg ha22 1
drilled in 60-cm rows in the dry season of 2016 and 2017. Irrigation was by flooding of soil surface every alternate day throughout the period of the trial. At both regions, herbage accumulation and nutritive value of forage species were determined at four harvesting stages: 4, 8, 12, and 16 weeks after planting (WAP) followed by 4-week intervals between harvests. At the end of the trial, fresh biomass was weighed, bundled and sold in major livestock feed markets to estimate market price. Allowing forages to establish for only 8 weeks resulted in two 4-week regrowth harvests with dry matter accumulation (DMA) ranging from 4.5 to 8.1 Mg DM ha-1 from both species and in both regions. Generally, herbage nutritive values in terms of crude protein, metabolizable energy concentration, and in vitro digestible organic matter (IVDOM) declined (P<0.05) while DMA increased linearly with delay in harvest. While both grasses adapted well in the regions under irrigation, 8WAP harvests provided the best balance between nutritive value and DMA. Irrigated fodder must be marketed more effectively since currently market prices are not closely related to nutritive value.
U2 - 10.1002/agj2.20884
DO - 10.1002/agj2.20884
M3 - Article
VL - 114
SP - 148
EP - 164
JO - Agronomy Journal
JF - Agronomy Journal
SN - 0002-1962
IS - 1
ER -