Table 2.
Effect of in ovo injected and supplemental Zn on growth performance in broilers at 35 days of age.
| Parameters | Con | In Ovo | Added Zn (mg/kg) | SEM 1 | p-Value | |
|---|---|---|---|---|---|---|
| 100 | 200 | |||||
| Initial weight (g) | 38.73 | 38.70 | 38.73 | 38.73 | 0.035 | 0.911 |
| Starter (day 1–21) | ||||||
| Weight (g) | 984 | 991 | 990 | 1018 | 10.8 | 0.18 |
| Weight gain (g) | 945 | 953 | 951 | 979 | 10.7 | 0.18 |
| Feed intake (g) | 839 | 888 | 902 | 892 | 17.1 | 0.09 |
| FCR | 0.89 | 0.93 | 0.95 | 0.91 | 0.02 | 0.09 |
| Grower (day 22–35) | ||||||
| Weight (g) | 1891 b | 1987 a | 1975 a | 1985 a | 24.59 | <0.05 |
| Weight gain (g) | 907 | 998 | 983 | 968 | 31.30 | 0.24 |
| Feed intake (g) | 1946 | 1952 | 1972 | 1969 | 13.27 | 0.47 |
| FCR | 2.17 | 1.96 | 2.01 | 2.04 | 0.06 | 0.18 |
| Overall (day 1–35) | ||||||
| Weight gain (g) | 1853 b | 1949 a | 1936 a | 1946 a | 9.92 | <0001 |
| Feed intake (g) | 2786 b | 2854 ab | 2860 a | 2861 a | 16.53 | <0.05 |
| FCR | 1.50 a | 1.46 b | 1.48 ab | 1.47 ab | 0.01 | <0.05 |
1 SEM, standard error of means. a,b Means in the same rows with different superscripts are significantly different (p < 0.05).