Dr Sita Ghimire
Principal Scientist - Plant Pathologist, BecA-ILRI Hub
International Livestock Research Institute
Livestock productivity in Sub-Sahara Africa (SSA) is the lowest among the regions. One of the major constraints responsible for a low livestock productivity in SSA is limited supply, seasonal availability, and a low-quality of available feed resource particularly of local forages and crop residues. It has also negatively impacted on the outcome of livestock genetic gains and veterinary services efforts. Local forages species often have a low yield potential, limited nutritive values, high incidence of pests and diseases (e.g. Napier grass smut and stunt diseases) and are susceptible to drought and other abiotic and biotic stressors. The shortage of forage resources both in quantity and quality results in high feed costs, limit livestock productivity, and reduce the incomes of smallholder livestock farmers.
High quality feeds are essential for wellbeing of livestock, increase productivity, reduce production costs, improve incomes, and to achieve a sustainable livestock production. Improved forages, mostly of African origins have transformed livestock production system from subsistence to commercial scale in tropical and sub-tropics regions. For example, Brachiaria grass is the basis for the success of beef industries in South America particularly in Brazil where 99 million hectares are under Brachiaria pasture. Improved Brachiaria grass cultivars are characterized by high biomass yield, high nutritive values, resilience to various abiotic and biotic stressors including drought and pests and diseases. Besides agricultural importance, Brachiaria grass has several attributes of environmental significance such as its ability to capture atmospheric carbon-di-oxide into soils, maximize nutrient use efficiency, reduce soil erosion, and improve soil fertility. Due to immense potential of Bracharia grass in transforming livestock production system in SSA under changing climatic conditions, the International Livestock Research Institute (ILRI) launched the Climate smart Bracharia grass program in 2012 consorting with NARS, international organizations, and development partners. The program has identified Brachiaria grass cultivars suitable for different agroecologies in SSA, documented significant benefits of Brachiaria grass in livestock productivity (e.g. 15-40% increase in milk production and over 50% increase in animal live weight), developed improved practices for Brachiaria grass production, management and utilization, and increased availability of high quality forage in the dry season.
Four improved Brachiaria grass cultivars: Brachiaria brizantha cv. MG4, B. brizantha cv. Piata, and B. brizantha cv. Xaraes, Brachiaria decumbens cv. Basilisk; Brachiaria hay making; and planting materials (rooted tillers) production technologies have been promoted by ILRI, NARS, non-government organizations and development organizations in many countries in SSA. Farmers adopting these technologies have benefitted through increased forage availability, improved livestock health and productivity, more incomes and improved livelihood. The Brachiaria grass technology has now benefitted over 40,000 households from 20 countries in SSA. The production and sale of hay and planting materials (rooted tillers) have emerged as new agribusiness options of rural youth and women for income generation. Indeed, Brachiaria grass has been a preferred forage option of livestock farmers in SSA countries.