Table 2.
Feed consumption (g/animal/day) for male and female rats administered a daily dose of an experimental phytase by oral gavage for 90 days.
| Treatment group | Experimental test period (days) |
|||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1−8 | 9−15 | 16−22 | 23−29 | 30−36 | 37−43 | 44−50 | 51−57 | 58−64 | 65−71 | 72−78 | 79−85 | 86−90 | ||
| Males | ||||||||||||||
| Control | Mean | 30.9 | 34.0 | 34.4 | 35.7 | 36.0 | 36.4 | 36.1 | 35.9 | 36.2 | 35.0 | 34.9 | 35.5 | 32.5 |
| SD | 1.67 | 2.48 | 2.75 | 2.90 | 3.14 | 3.28 | 3.22 | 2.85 | 3.53 | 2.85 | 3.06 | 2.86 | 3.15 | |
| N= | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | |
| T1 | Mean | 30.6 | 33.1 | 34.0 | 34.3 | 34.0 | 34.3 | 33.3 | 34.3 | 33.5 | 33.1 | 32.9 | 32.1* | 31.5 |
| SD | 1.98 | 1.83 | 2.59 | 2.65 | 2.53 | 2.46 | 2.90 | 2.28 | 1.74 | 2.05 | 1.84 | 2.30 | 2.39 | |
| N= | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | |
| T2 | Mean | 30.0 | 33.1 | 32.5 | 33.1 | 32.2* | 32.2* | 32.2 | 33.1 | 32.5* | 32.4 | 31.5* | 31.3** | 30.4 |
| SD | 0.81 | 0.82 | 1.58 | 1.11 | 0.81 | 0.89 | 0.55 | 1.12 | 1.21 | 0.95 | 1.32 | 1.57 | 1.79 | |
| N= | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | |
| T3 | Mean | 31.8 | 33.9 | 36.4 | 36.6 | 36.0 | 36.5 | 36.2 | 36.7 | 35.7 | 35.1 | 34.2 | 34.5 | 32.6 |
| SD | 0.95 | 2.42 | 3.02 | 3.31 | 2.95 | 2.60 | 3.67 | 2.95 | 2.87 | 2.98 | 2.77 | 2.63 | 3.51 | |
| N= | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | |
| Females | ||||||||||||||
| Control | Mean | 19.5 | 19.9 | 22.1 | 22.0 | 21.4 | 21.6 | 21.0 | 21.45 | 21.1 | 19.9 | 19.9 | 20.4 | 18.8 |
| SD | 0.94 | 1.11 | 2.51 | 1.52 | 1.35 | 1.28 | 1.63 | 1.45 | 1.92 | 1.31 | 1.38 | 1.60 | 1.37 | |
| N= | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | |
| T1 | Mean | 19.6 | 20.8 | 21.8 | 22.2 | 21.9 | 21.9 | 21.2 | 21.5 | 22.0 | 21.6 | 21.4 | 21.3 | 21.2 |
| SD | 2.63 | 3.40 | 3.09 | 2.98 | 3.29 | 3.14 | 3.12 | 4.58 | 3.80 | 3.02 | 2.65 | 2.81 | 3.53 | |
| N= | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | |
| T2 | Mean | 19.9 | 20.4 | 21.2 | 21.1 | 21.1 | 21.4 | 20.9 | 21.4 | 20.9 | 20.5 | 20.7 | 20.0 | 19.7 |
| SD | 1.21 | 0.89 | 1.23 | 1.26 | 1.15 | 1.15 | 1.77 | 2.29 | 1.17 | 1.38 | 1.56 | 1.82 | 1.78 | |
| N= | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | |
| T3 | Mean | 19.0 | 20.7 | 21.2 | 21.0 | 19.9 | 20.1 | 19.8 | 19.7 | 20.0 | 19.4 | 19.1 | 19.0 | 18.1 |
| SD | 0.74 | 2.66 | 1.79 | 1.04 | 0.82 | 1.05 | 0.71 | 0.81 | 0.79 | 1.09 | 0.83 | 1.02 | 1.10 | |
| N= | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | |
Control = distilled water.
SD = standard deviation.
T1 = experimental phytase at 250 mg TOS/kg bw/day (equivalent to 112,500 FTU/kg bw/day).
T2 = experimental phytase at 500 mg TOS/kg bw/day (equivalent to 225,000 FTU/kg bw/day).
T3 = experimental phytase at 1000 mg TOS/kg bw/day (equivalent to 450,000 FTU bw/kg/day).
*
significantly different from control, at P < 0.05.
**
significantly different from control, at P < 0.01.