Performance parameter | Trial 1 (2013) | Trial 2 (2014) | Trial 3 (2015) | |||
Control | OA + Probiotic | Control | OA + Probiotic | Control | OA + Probiotic | |
Eggs set weight (g) | 61.2 ± 0.61 | 60.38 ± 0.49 | 59.63 ± 0.90 | 59.84 ± 0.85 | 58.29 ± 0.77 | 58.19 ± 0.78 |
Transferred egg weight (g) | 57.47 ± 0.47 | 57.91 ± 0.41 | 56.73 ± 0.72 | 57.18 ± 0.67 | 54.1 ± 0.73 | 54.13 ± 0.72 |
One-day chick weight (g) | 45.04 ± 0.47 | 44.81 ± 0.42 | 44.18 ± 0.46 | 44.61 ± 0.50 | 42.35 ± 0.49 | 42.49 ± 0.63 |
Egg to chick weight difference (g) | 16.16 ± 0.09 | 15.57 ± 0.09 | 15.45 ± 0.09 | 15.23 ± 0.09 | 15.93 ± 0.09 | 15.7 ± 0.09 |
Egg to chick weight loss (%) | 26.41 ± 0.06 | 25.79 ± 0.06* | 25.91 ± 0.06 | 25.45 ± 0.06* | 27.34 ± 0.06 | 26.99 ± 0.06* |