NR 45. Effect of the supplementation with different mineral sources on the macromineral (Ca, P & Mg) concentration in blood serum and bone ribs of crossbred lambs

Abstract

A trial was carried out in order to determine the effect of different mineral sources on the concentration of Ca (CSCa), P (CSP) & Mg (CSMg) in blood serum and Ca (CHCa), P (CHP) and Mg (CHMg) in bone ribs of crossbred lambs. The treatments evaluated during 105 d, were: T0: hay ad libitum + 135 g of supplement (corn gluten meal: 80.4 %, soybean meal: 17.6 % & urea: 2 %); T1: hay ad libitum + 125 g of supplement (poultry litter: 80 % & molasses cane: 20 %), T2: T0 + 5 g of dicalcium phosphate and T3: T0 + 7 g of commercial mineral mixture. Twenty lambs (5 lambs/treatment) of 11 kg liveweight and 4 months of age were used in a randomized design. The concentration of minerals in blood serum for T0, T1, T2 & T3 were: CSCa (P<.05): 10.7, 10.9, 11.8 & 11.6 mg Ca/100 mL respectively; CSP (P<.05): 6.10, 7.87, 8.31 & 7.94 mg P/100 mL respectively; CSMg (P<.05): 1.65, 1.79, 1.79 & 2.17 mg mg/100 mL respectively . The mineral concentrations in bone ribs for T0, T1, T2 & T3 were: CHCa (P<.01): 25.2, 28.0, 31.2 & 28.8 % respectively; CHP (P<.01): 11.5, 12.9, 14.2 & 12.9 % respectively; CHMg (P<.01): 0.51, 0.70, 0.73 & 0.81 respectively. The overall concentration of macrominerals both in blood serum and bone ribs of the animals consuming any of the mineral supplements was significantly better than the control group