Table 5.
Item | Control2 | FFSMP3 |
SEM | ||
---|---|---|---|---|---|
N21 | CU14 | CU33 | |||
Weight gain, g/bird | 736c | 805a | 779b | 815a | 8 |
Feed intake, g/bird | 1038 | 1076 | 1059 | 1069 | 21 |
Feed conversion ratio, feed intake/weight gain | 1.41a | 1.34ab | 1.36ab | 1.31b | 0.03 |
Survival rate, % | 100 | 100 | 100 | 100 | - |
PEF4 | 264c | 303ab | 288b | 312a | 7 |
Means in the same row with different superscripts are significantly different (P < 0.05).
Data are means of 4 pens of broilers with 10 broilers per pen.
Control: Unfermented feather meal-soybean meal product.
N21: fermented feather meal-soybean meal product (FFSMP) inoculated with Bacillus subtilis var. natto N21; CU14: FFSMP inoculated with Bacillus subtilis CU14; CU33: FFSMP inoculated with Bacillus amyloliquefaciens CU33.
Production efficiency factor, PEF = (Survival rate (%) × BW (kg))/(age (d) × feed conversion ratio) × 100.