Table 4.
Parameter | Control | GHBP100 | GHBP200 | GHBP300 | SEM | p-Value |
---|---|---|---|---|---|---|
Starter (1–10 days) | ||||||
BW, g | 328 b | 335 a | 339 a | 336 a | 5.64 | <0.001 |
BWG, g | 283 b | 290 a | 295 a | 292 a | <0.001 | 0.01 |
FI, g | 361 a | 361 a | 346 c | 353 b | 4.38 | 0.03 |
FCR | 1.28 a | 1.23 b | 1.17 c | 1.21 b | 6.98 | 0.02 |
Grower (11–22 days) | ||||||
BW, g | 1216 d | 1240 c | 1281 a | 1269 b | 33.46 | 0.02 |
BWG, g | 888 b | 905 b | 942 a | 933 a | 28.47 | <0.001 |
FI, g | 1606 d | 1570 c | 1501 a | 1538 b | 45.31 | 0.03 |
FCR | 1.81 a | 1.74 b | 1.59 d | 1.65 c | <0.001 | <0.001 |
Finisher (23–38 days) | ||||||
BW, g | 2321 d | 2456 c | 2714 a | 2576 b | 43.18 | <0.001 |
BWG, g | 1105 d | 1216 c | 1433 a | 1307 b | 34.44 | <0.001 |
FI, g | 2309 | 2321 | 2433 | 2380 | 39.18 | 0.30 |
FCR | 2.09 a | 1.91 b | 1.70 c | 1.82 b | 0.03 | <0.001 |
Overall performance (1–38 days) | ||||||
BW, g | 2321 d | 2456 c | 2714 a | 2576 b | 43.18 | <0.001 |
BWG, g | 2276 d | 2411 c | 2670 a | 2532 b | 55.65 | <0.001 |
FI, g | 4276 | 4248 | 4280 | 4271 | 46.18 | 0.964 |
FCR | 1.88 a | 1.76 b | 1.60 d | 1.69c | <0.001 | <0.001 |
a,b,c,d Means with different superscripts within the same row differ significantly (p < 0.05). GHBP: growth hormone-boosting peptide; BW: Body weight; BWG: Body weight gain; FI: Feed intake; FCR: Feed conversion ratio. Control: basal diet without GHBP; GHBP100: basal diet plus GHBP at a level of 100 μg/kg; GHBP200: basal diet plus GHBP at a level of 200 μg/kg; GHBP300: basal diet plus GHBP at a level of 300 μg /kg diet.