G:F ratio in response to treatment with BioPlus 2B®. In
addition, there were no linear or quadratic effects observed
in the coefficients of total tract apparent digestibility
of DM and N in response to different levels of
dietary BioPlus 2B®.
The effects of dietary BioPlus 2B® on the emission of
NH3 from slurry are shown in Fig. 1. The NH3 emission
from slurry obtained from pigs in the CON treatment
group was significantly higher than that of slurry
obtained from pigs in the B0.05, B0.1 and B0.2 groups
throughout the entire experimental period. However, the
NH3 emission levels of slurry obtained from pigs in the
three BioPlus 2B® treatment groups were similar, with
the exception of a significant decline in the emission of
NH3 by slurry obtained from pigs in the B0.1 group
when compared to that of slurry obtained from pigs in
the B0.05 and B0.2 groups at 72 h and 96 h.
The effects of diet on H2S emission from slurry are
shown in Fig. 2. The only significant difference observed
in H2S emission was between that of slurry from
the CON group and the B0.2 group at 72 h.
As shown in Fig. 3, mercaptan emissions from slurry
were not affected by dietary treatment with BioPlus 2B®.
The effects of dietary BioPlus 2B® on slurry pH are
shown in Fig. 4. The pH of slurry obtained from pigs in