Effect of levels of methionine supplementation on processed Mucuna sloanei seed meal based broiler chicken diets

Abstract

A feeding trial was conducted with 150 Marshal Broiler chicken from day-old to 8 weeks to assess the effect of
levels of methionine supplementation on processed Mucuna sloanei seed meal in broiler chickens diet. The trial
lasted for 56 days. Mucuna sloanei seeds were soaked for 24 hours, and then boiled for 30 minutes after
decanting the water used for soaking; oven dried and milled using the hammer mill (2.00 mm sieve). Five
experimental diets were formulated (T1 - T5). T1 was control diet, and contained neither Mucuna sloanei seed
meal nor methionine supplementation. T2 contained only Mucuna sloanei seed meal without methionine
supplement, T3–T5 had 6% Mucuna sloanei seed meal quantitative replacement of soybean meal each, with
methionine supplementation at 0.10%, 0.20% and 0.30% respectively. The feed conversion ratio of T5 was the
lowest, and so indicates better conversion than the rest. For cut parts, there were significant differences
(P<0.05) for all the parameters measured. Diet 5 was better than the others. The organ weights showed no
significant difference (p>0.05). Diet 5 had the least cost/kg weight, highest revenue and gross margin, and hence
recommended.