On-station Development and Testing of Small Ruminant Feedlot Finisher Ration as Business for Vulnerable Groups in Kenya

Abstract

The study was carried out  to formulate and test a cost-effective small ruminant feedlot finisher ration to reach a targeted market weight of 45–50 kg within 6 to 7 months as an agribusiness for vulnerable groups in Kenya. Thirty entire male Dorper-weaner lambs aged 3-4 months with an average initial body weight of 23.3 kg ± 2.4 were used in a controlled on-station feeding trial. Treatments were three energy levels (9.0, 10.0 and 11 MJ ME Kg-1 DM) and three crude protein levels (12, 14 and 16% DM), with Rhodes grass hay as the control diet in a Complete Randomized Design (CRD). One-way analysis of covariance (ANCOVA) for comparison of means of the response variables was conducted. ANCOVA results of the experimental rations and control showed that the feed intake (FI) was statistically significant for ration 8. Mean results indicated that TR8 had the highest average daily weight gain (ADG) mean and total weight gain (TWG). Significant peak final slaughter weights (p<0.05) in TR8 (46 kg), TR6 (43 kg) and ration 9 (41 kg) were observed at about 5-6 months old. Acceptable final slaughter weights were recorded in TR6, TR9 and TR8 rations. In conclusion, test ration with a combination of 11 MJ kg-1 DM of energy level and 14 per cent (TR8) had the highest ADG in the shortest period of 6 months old and can be recommended for adoption to finish Dorper sheep to reach market weight of up to 50 kg within 6-7 months old.