Table 6.
The effect of pelleted two-stage fermented feeds on broiler growth performance1 (Trial 2).
| Control | Fermented feed2 | SEM | P-value | ||
|---|---|---|---|---|---|
| BBC | PBBC | ||||
| 0 to 21 d | |||||
| Weight gain, g/bird | 741b | 781a | 792a | 6 | 0.0004 |
| Feed intake, g/bird | 1,001 | 1,047 | 1,030 | 14 | 0.1124 |
| Feed conversion ratio, feed intake/weight gain | 1.35 | 1.34 | 1.30 | 0.02 | 0.0921 |
| 21 to 35 d | |||||
| Weight gain, g/bird | 1,117 | 1,130 | 1,187 | 30 | 0.3275 |
| Feed intake, g/bird | 1,984 | 1,927 | 1,960 | 38 | 0.5771 |
| Feed conversion ratio, feed intake/weight gain | 1.78 | 1.71 | 1.65 | 0.07 | 0.4598 |
| 0 to 35 d | |||||
| Weight gain, g/bird | 1,858b | 1,911a,b | 1,981a | 27 | 0.0510 |
| Feed intake, g/bird | 2,985 | 2,973 | 2,990 | 46 | 0.9657 |
| Feed conversion ratio, feed intake/weight gain | 1.61 | 1.56 | 1.50 | 0.04 | 0.2407 |
| Survival rate, % | 96.3 | 95.0 | 96.3 | 2.0 | 0.8743 |
| PEF3 | 327 | 342 | 373 | 17 | 0.2354 |
1Data are means of 4 pens of broilers with 20 broilers per pen.
2BBC Bacillus subtilis var. natto N21 + Bacillus coagulans L12 fermented feed; PBBC: BBC was dried by oven at 65°C for 7.5 h, and then pelleted.
3Production efficiency factor, PEF = (Survival rate (%) × BW (kg))/(age (d) × feed conversion ratio) × 100.
a,bMeans in the same row with different superscripts are significantly different (P < 0.05).