Mango Seed Kernel (MSK) as supplement in lactating ruminant diets was investigated. Rotten mango fruits was gathered at 4 settlements around Ogbomoso in Oyo State, Nigeria, to represent 4 treatments; TI, T2, T3 and T4, respectively. Samples were washed, soaked for 48 hours and sundried. Dried samples were milled and bottled for laboratory analysis for chemical composition, mineral analysis (Calcium -Ca, Magnesium – Mg, Sodium – Na, Potassium – K, Iron – Fe, Zinc – Zn and Copper -Cu), amino acids (Methionine, Lysine, Isoleucine, and Phenylalanine) and Anti-nutritional factors (Tannin, Phytic acid and Oxalate). The results were significantly different (P<0.05). The crude protein values ranged from 7.00% (T1) to 10.95% (T3). There was no significant difference (P>0.05) between T1 and T2 for crude fibre. Ash values ranged from 4.31% (T4) to 6.05% (T3). Mineral composition were significantly different(P<0.05). T3 (mg/100g) recorded highest values of 48.75, 182.50, 315.00 , 780.00, 0.90, 5.85, and 0.80, for Ca, Mg, Na, K, Fe, Zn and Cu, respectively. Amino acid was significantly different (P<0.05). Methionine (g/100g protein) varied from 1.65 (T4) to 2.00 (T3), Lysine (g/100g protein) varied from 3.00 (T2 and T4) to 3.85(T3). Isoleucine differed significantly(P<0.05) as T3 had highest value (4.25g/100g protein). Phenylalanine showed no significant different (P>0.05) for TI and T2 as well as T3 and T4. Tannin value was significant (P<0.05) at T1 (2.62 mg/100g/DM). Oxalate(mg/100g/DM) differed significantly (P<0.05), with values range of 1.66(T4) and 1.92 (T3). This study therefore presents MSK as good supplement in ruminant nutrition for meat and milk production purpose.
Mango seed kernel, chemical composition, mineral analysis, supplement, ruminant
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