TABLE 1.
Mean values of pH and humidity and C. perfringens and coliform countsa
| Day | pH (SD)c
|
% Humidity (SD)d
|
Log10 of C. perfringens CFU/g (SD)e
|
Log10 of coliform CFU/g (SD)f
|
||||
|---|---|---|---|---|---|---|---|---|
| Acidified | Control | Acidified | Control | Acidified | Control | Acidified | Control | |
| 1 | 2.8b | 4.9b | 22.42b | 14.64b | NDg | ND | ND | ND |
| 4 | 5.2 (0.58) | 5.9 (0.24) | 14.5 (2.58) | 16.1 (3.45) | 4.65 (1.21) | 5.49 (0.46) | 5.61 (1.29) | 6 (0) |
| 7 | 5.8 (0.53) | 5.9 (0.2) | 15.7 (11.26) | 17.7 (10.19) | 4.1 (0.97) | 5.38 (0.66) | 6 (1.81) | 6.85 (0.23) |
| 11 | 5.9 (0.29) | 5.9 (0.09) | 17.6 (10.38) | 22.1 (6.6) | 5.62 (0.86) | 6.07 (1.04) | 6.9 (1.35) | 7.12 (1.07) |
| 14 | 6 (0.19) | 5.9 (0.11) | 26.8 (8.74) | 31.9 (13.52) | 5.97 (0.47) | 6.11 (0.38) | 7.04 (1.57) | 6.37 (1.38) |
| 18 | 6.2 (0.33) | 6.5 (1.37) | 35.1 (9.95) | 38.6 (10.34) | 5.89 (1.01) | 6.06 (0.47) | 6.71 (0.63) | 6.58 (0.79) |
| 21 | 6.8 (0.71) | 6.8 (1.0) | 39.2 (7.42) | 36.9 (9.51) | 5.12 (0.69) | 5.37 (1.0) | 6.73 (1.24) | 6.44 (0.14) |
| 25 | 7.9 (0.74) | 7.9 (0.75) | 35.4 (5.44) | 36.7 (4.4) | 5.98 (0.32) | 6.16 (0.81) | 6.09 (1.0) | 5.75 (2.16) |
| 28 | 8.4 (0.41) | 8.4 (0.48) | 29.6 (38.19) | 38.313.0) | 5.92 (1.28) | 6.16 (0.81) | 3.95 (1.92) | 4.4 (2.51) |
a
The variables were measured in control and acidified-litter samples at various days. Acidified, acidified group; Control, control group.
b
Measurement taken before the litter was divided among pens.
c
P, 0.002.
d
P, 0.78.
e
P, 0.016.
f
P, 0.98.
g
ND, not done.