Table 7.
Variables2) | Experimental diets1) | p-value | SEM | |||||
---|---|---|---|---|---|---|---|---|
| ||||||||
No phytase | Phytase 500 +MT A | Phytase 1,000 +MT A | Phytase 1,500 +MT A | Phytase 1,000 +MT B | Phytase 1,500 +MT C | |||
21 days of age | ||||||||
Proventriculus (%) | 0.58 | 0.56 | 0.57 | 0.58 | 0.60 | 0.58 | 0.955 | 0.01 |
Gizzard (%) | 2.18 | 2.05 | 1.88 | 2.20 | 2.25 | 2.20 | 0.264 | 0.05 |
Small intestine (%) | 3.35 | 3.23 | 3.08 | 2.97 | 3.31 | 3.26 | 0.785 | 0.08 |
Pancreas (%) | 0.34 | 0.36 | 0.32 | 0.37 | 0.36 | 0.31 | 0.499 | 0.01 |
Heart (%) | 0.61 | 0.64 | 0.63 | 0.69 | 0.67 | 0.68 | 0.751 | 0.02 |
Liver (%) | 2.56 | 2.34 | 2.62 | 2.61 | 2.52 | 2.51 | 0.730 | 0.05 |
42 days of age | ||||||||
Proventriculus (%) | 0.29 | 0.30 | 0.25 | 0.24 | 0.26 | 0.27 | 0.151 | 0.01 |
Gizzard (%) | 1.31 | 1.22 | 1.21 | 1.17 | 1.21 | 1.17 | 0.551 | 0.02 |
Small intestine (%) | 1.56 | 2.09 | 2.00 | 1.81 | 2.24 | 2.04 | 0.152 | 0.04 |
Pancreas (%) | 0.20 | 0.18 | 0.16 | 0.19 | 0.21 | 0.16 | 0.092 | 0.01 |
Heart (%) | 0.44 | 0.49 | 0.46 | 0.41 | 0.50 | 0.48 | 0.426 | 0.01 |
Liver (%) | 1.56b | 1.83ab | 1.73ab | 1.61ab | 2.02a | 1.78ab | 0.035 | 0.05 |
SEM, standard error of the means.
Matrix A (MT A): 0.165% Ca, 0.150% avP, and 0.035% Na; matrix B (MT B): 0.215% Ca, 0.195% avP, and 0.045% Na; matrix C (MT C): 0.245% Ca, 0.225% avP, and 0.053% Na.
%: Relative weights calculated in relation to bird live weight.
Means followed by different letters in the same line are different by Tukey test (p<0.05).