Table 3.
Effect of replacing soybean oil with poultry fat on growth performance and organ weights of broilers.
Item | Experimental Diets 1 | SEM 2 | p-Value | |||
---|---|---|---|---|---|---|
Control | PF25 | PF50 | PF100 | |||
Initial body weight, g | 43.11 | 43.00 | 43.20 | 43.02 | 0.032 | 0.896 |
Body weight 35 d, g | 2131.7 | 2142.1 | 2148.3 | 2157.5 | 10.33 | 0.851 |
Feed consumption 35 d, g | 3340.4 | 3335.0 | 3330.8 | 3324.6 | 10.04 | 0.957 |
FCR, g feed:g gain | 1.60 | 1.59 | 1.58 | 1.57 | 0.041 | 0.188 |
Mortality, % | 0.833 | 0.833 | 0.833 | 0.833 | 0.089 | 0.894 |
EPEF | 377.6 | 382.2 | 384.9 | 388.9 | 3.228 | 0.664 |
Organ weights, % | ||||||
Carcass | 67.22 | 67.41 | 67.72 | 67.91 | 0.172 | 0.497 |
Breast muscle | 23.13 | 23.27 | 23.43 | 23.62 | 4.243 | 0.279 |
Thigh muscle | 16.52 | 16.54 | 16.22 | 16.32 | 0.068 | 0.262 |
Liver | 2.24 | 2.28 | 2.14 | 2.31 | 0.028 | 0.152 |
Abdominal fat | 1.31 b | 1.47 b | 1.90 a | 1.93 a | 0.055 | 0.002 |
1 PF25, 25% of soybean oil replaced by PF; PF50, 50% of soybean oil replaced by PF; PF100, full replacement of soybean oil by PF. 2 SEM, standard error of means. EPEF, European production efficiency factor; FCR, feed conversion ratio. a,b Means within the same row with different superscripts differ. Gram (g).