Feeding value of dried fermentation biomass in nursery pigs
2018
Bagui, T.P.M.
Two studies were conducted to assess the feeding value of dried fermentation biomass in diets for nursery pigs. In Study 1, two energy balance experiments were conducted with 16 barrows (Exp. 1) and 12 barrows (Exp. 2) randomly allotted to 2 dietary treatments with 8 and 6 replicate pigs per treatment, respectively. In Exp. 1, diets were a corn-soy basal diet and diet with 80% basal + 20% MSG biomass, whereas in Exp. 2, diets were a complex basal diet and a diet with 70% basal + 30% Lys biomass. On a DM basis, the DE and ME of the MSG and Lys biomass were 6,330 and 5,920 kcal/kg and 5,406 and 5,221 kcal/kg, respectively. In the second study, a total of 96 weanling pigs were randomly allotted to 4 dietary treatments with 6 replicates. Dietary treatments included a negative control diet, a diet with 3% hydrolyzed porcine intestinal mucosa, and diets with 3% MSG biomass and 3% Lys biomass. Overall, no significant differences between treatments were observed in growth performance, diarrhea occurrence, BUN, plasma I-FABP and pig-MAP concentrations of pigs. In conclusion, DFB from MSG and L-Lys production both have high nutritional value because of high ME concentrations and digestibility of nutrients, and do not negatively affect growth performance of nursery pigs. With this, DFB can be used as a feed ingredient in nursery pig diets and as a potential replacement for other specialty protein sources.
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