Table 6. Weight of organs and length of the intestine of broilers at 21 days of age fed diets containing different levels of cottonseed oil (CO) with and without addition of ferrous sulfate (FS).
| Main effect | HR | LV | GZ | BU | PA | SP | IN | TLI | LD | LJ | LI |
|---|---|---|---|---|---|---|---|---|---|---|---|
| CO (%) | (%) | cm | |||||||||
| 0 | 0.65 | 3.25 | 3.68 | 0.16 | 0.31 | 0.09 | 6.00 | 148.7 | 26.30 | 58.30 | 65.40 |
| 2 | 0.63 | 2.98 | 3.95 | 0.18 | 0.32 | 0.09 | 5.69 | 145.6 | 25.60 | 60.40 | 58.40 |
| 4 | 0.63 | 2.91 | 3.83 | 0.18 | 0.34 | 0.08 | 5.35 | 135.7 | 24.10 | 53.90 | 57.10 |
| 6 | 0.64 | 2.96 | 3.86 | 0.18 | 0.29 | 0.08 | 5.63 | 149.4 | 27.20 | 60.70 | 63.00 |
| FS | |||||||||||
| Without | 0.64 | 2.97 | 3.90 | 0.18 | 0.33 | 0.08 | 5.65 | 146.9 | 26.10 | 58.25 | 61.85 |
| With | 0.63 | 3.08 | 3.80 | 0.17 | 0.30 | 0.09 | 5.68 | 142.7 | 25.50 | 58.40 | 60.10 |
| CV (%) | 12.17 | 14.85 | 14.07 | 25.06 | 23.54 | 30.05 | 10.93 | 9.61 | 16.14 | 9.70 | 12.31 |
| Source of variation | Probability > F | ||||||||||
| FS | 0.571 | 0.468 | 0.394 | 0.212 | 0.221 | 0.176 | 0.893 | 0.347 | 0.652 | 0.934 | 0.466 |
| CO | 0.835 | 0.159 | 0.756 | 0.619 | 0.338 | 0.847 | 0.087 | 0.018 | 0.349 | 0.012 | 0.029 |
| CO × FS | 0.774 | 0.653 | 0.073 | 0.714 | 0.693 | 0.933 | 0.530 | 0.977 | 0.798 | 0.943 | 0.608 |
HR, heart; LV, liver; GZ, gizzard; BU, bursa; PA, pancreas; SP, spleen; IN, intestine; TLI, total length of the intestine; LD, length of the duodenum; LJ, length of the jejunum; LI, length of the ileum; CV, coefficient of variation.