Table 1.
Parameter | T1 | T2 | T3 | T4 | T5 | T6 | T7 | SEM | P-value |
---|---|---|---|---|---|---|---|---|---|
Int. Wt. (g) | 42.34 | 42.98 | 42.50 | 43.24 | 43.28 | 43.20 | 43.44 | 0.13 | 0.36 |
Starter period | |||||||||
BW (g) | 423.65bc | 437.60ab | 415.09c | 427.31abc | 446.33a | 429.99abc | 421.60bc | 2.88 | 0.05 |
BWG (g) | 381.31bc | 394.61ab | 372.58c | 384.07abc | 403.04a | 386.79abc | 378.16bc | 2.85 | 0.05 |
FI (g) | 465.64bc | 488.01ab | 459.79c | 464.02bc | 496.15a | 470.47bc | 476.53abc | 3.60 | 0.02 |
FCR | 1.22 | 1.23 | 1.23 | 1.21 | 1.23 | 1.21 | 1.26 | 0.005 | 0.07 |
Grower period | |||||||||
BW(g) | 1073.15bc | 1112.31ab | 1034.32c | 1109.44abc | 1159.91a | 1089.62abc | 1065.89bc | 10.02 | 0.02 |
BWG (g) | 649.50bc | 674.71abc | 619.23c | 682.12ab | 713.58a | 659.62abc | 644.29bc | 7.51 | 0.03 |
FI (g) | 1062.82 | 1097.29 | 1037.18 | 1067.67 | 1118.65 | 1061.87 | 1073.78 | 9.14 | 0.39 |
FCR | 1.63ab | 1.62ab | 1.67a | 1.56c | 1.57c | 1.60bc | 1.66a | 0.008 | 0.001 |
Finisher period | |||||||||
BW(g) | 2188.32d | 2275.40 cd | 2363.88bc | 2459.90ab | 2519.21a | 2491.28ab | 2275.00 cd | 22.72 | 0.001 |
BWG(g) | 1115.17 b | 1163.08 b | 1329.56 a | 1350.46a | 1359.30a | 1401.66a | 2258.22b | 20.43 | 0.001 |
FI(g) | 2256.98 | 2302.51 | 2150.40 | 2305.30 | 2365.53 | 2263.14 | 2217.22 | 24.97 | 0.34 |
FCR | 2.03a | 1.98a | 1.63bc | 1.70bc | 1.74bc | 1.61c | 1.83ab | 0.037 | 0.002 |
Overall performance | |||||||||
BW(g) | 2188.32d | 2275.40 cd | 2363.88bc | 2459.90ab | 2519.21a | 2491.28ab | 2275.00 cd | 22.72 | 0.001 |
BWG(g) | 2145.98d | 2232.41 cd | 2321.38bc | 2416.66ab | 2475.93a | 2448.08ab | 2231.56 cd | 22.70 | 0.001 |
FI(g) | 3785.45 | 3853.36 | 3707.48 | 3806.50 | 3980.34 | 3795.49 | 3767.54 | 34.65 | 0.47 |
FCR | 1.76a | 1.72a | 1.60bc | 1.57c | 1.60bc | 1.55 c | 1.68ab | 0.01 | 0.001 |
RGR | 192.40c | 192.58bc | 192.92ab | 193.08a | 193.24a | 193.18a | 192.50bc | 0.06 | 0.001 |
a,b,c,d Means within the same row carrying different superscripts are significantly different at (P < 0.05).
T1: Control group "basal diet with no additives (breeder recommendation (BR)). T2: Basal diet minus 100 kcal/kg supplemented with 0.02% NSP-degrading enzymes (NSP). T3: Basal diet minus 50 kcal/kg supplemented with 0.025% emulsifier (LYSOFORTE®). T4: Basal diet minus 50 kcal/kg supplemented with 0.06% guanidinoacetic acid (CreAMINO®). T5: Basal diet minus 150 kcal/kg supplemented with a mixture of NSP and LYSOFORTE® (NSPL), T6: Basal diet minus 100 kcal/kg supplemented with a mixture of NSP and CreAMINO® (NSPC). T7: Basal diet minus 200 kcal/kg supplemented with a mixture of NSP, LYSO, and CreAMINO® (NSPLC)..
BW body weight; BWG body weight gain; FI feed intake; FCR feed conversion ratio; RGR relative growth rate