The effect of partial soybean meal replacement by pea on the nutritive value of feed mixtures for pigs
2004
Cervenova, R.,Vyskumny ustav zivocisnej vyroby, Nitra (Slovak Republic) | Chrenkova, M.,Vyskumny ustav zivocisnej vyroby, Nitra (Slovak Republic) | Chrastinova, L.,Vyskumny ustav zivocisnej vyroby, Nitra (Slovak Republic) | Heger, J.,Vyskumny ustav zivocisnej vyroby, Nitra (Slovak Republic) | Gracik, P.,Vyskumny ustav zivocisnej vyroby, Nitra (Slovak Republic)
Qualities of three feed mixtures for fattening pigs in weight categories 35-65 kg were tested in a feeding trial. The course of average weight gain in pigs was observed in two-week intervals. The main source of proteins in control group K was the soybean meal (15.4 %) and in experimental group P1 was the soybean meal partly replaced by 15 % native pea, and in experimental group PE by 15 % extruded pea. Thirty meat hybrids were used in the experiment (gilts and barrows). They were stabled in pairs. There were minimum differences in content of nutrients and energy values in kg dry matter of feed mixtures for groups K, P1 and PE (180.4 to 197.73 crude protein, 31.7 to 32.63 fat, 33.3 to 36.1 fibre and 15.22 to 15.29 ME in MJ). The amount of lysine was in all feed mixtures almost the same (approx. 11g/kg DM) and content of other essential amino acids fell not under the recommended level (MET+CYS approx. 5g/kg DM, THR approx. 8 g/kg DM).Feed mixtures were composed on basis of table values of ileal digestibility of amino acids. Pigs achieved 65 kg live weight during shorter period of fattening in the control group K and in the experimental group PE (41 days) compared with the experimental group P1 (46 days), however, pigs in it had the lowest initial live weight. In pigs of group PE was noticed the highest daily gain (810 g) with the lowest feed consumption per kg gain (2.53 kg). In experimental group P1 was the highest feed consumption per kg gain (3.15 kg) and the lowest daily gain (720 g). This gain was comparable with the control group (740 g).Statistically significant difference was found only in total feed consumption between experimental groups P1 and PE1 (P0.05). Partial replacement of soybean meal by extruded pea influenced positively fattening parameters in pigs.
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