Fifteen days prior to weaning, sixteen West African dwarf (WAD) ewes weighing between 17.60 and 20.66kg on a basal diet of Panicum maximum were allotted into 4 treatment groups A, B, C and D of 4 replicates each. The MSL replaced Wheat bran (WB) gravimetrically at 0, 15, 30 and 45%. Treatment A served as control, while animals in treatments B, C and D received Mexican sunflower leaf (MSL) at 15, 30 and 45% respectively. The experiment lasted for one week. Digestibility was determined using a 6-d total fecal collection. Ewes were given ad-libitum access to feed and water and routine vaccination and medication followed standard procedures. The 16 ewes were previously lambed 10 weeks before the commencement of this study and tagged to their respective treatments. Parameters measured were Voluntary Dry Matter Intake (VDMI), which comprised Concentrate Dry Matter Intake (CDMI) and Grass Dry Matter Intake (GDMI), Apparent Digestibility Coefficients of DM, CP, EE, Ash, NDF, ADF, ADL, Organic matter (OM), Energy and Feed Conversion Ratio (FCR). Data were analyzed using descriptive statistics and ANOVA .The VDMI (g/d) varied from 429.40 – 760.90 for ewes during digestibility. CDMI (g/d) varied from 199.00 – 587.60 and GDMI (g/d) varied from 143.02 – 236.41 for ewes and this was significant (p
Keywords: Mexican Sunflower, Nutrient digestibility, Lactating West African dwarf ewe.