Items | HBS | LBS | P-value |
---|---|---|---|
Laying performance | |||
 Egg production rate, % | 89.35 ± 2.75 | 86.37 ± 3.88 | 0.060 |
 Egg mass, g/hen/d | 56.36 ± 2.54 | 55.36 ± 3.76 | 0.456 |
 Average egg weight, g | 63.19 ± 1.69 | 64.16 ± 2.30 | 0.250 |
 Average daily feed intake, g/hen/d | 107.74 ± 6.31 | 105.43 ± 5.78 | 0.360 |
 Feed conversion ratio, g/g | 1.92 ± 0.16 | 1.91 ± 0.15 | 0.938 |
Eggshell quality | |||
 Breaking strength, N | 46.79 ± 2.56 | 25.99 ± 2.51 | < 0.001 |
 Eggshell thickness, mm | 0.35 ± 0.02 | 0.30 ± 0.03 | < 0.001 |
 Eggshell weight, g | 6.59 ± 0.42 | 5.85 ± 0.41 | < 0.001 |
 Eggshell weight ratio, % | 10.42 ± 0.42 | 9.13 ± 0.54 | < 0.001 |
Eggshell components | |||
 Ca content, mg/g | 374.64 ± 7.32 | 378.27 ± 7.67 | 0.229 |
 Total Ca per eggshell, g | 2.47 ± 0.10 | 2.19 ± 0.08 | < 0.001 |
 P content, mg/g | 0.96 ± 0.09 | 0.94 ± 0.11 | 0.619 |
 Total P per eggshell, mg | 6.29 ± 0.57 | 5.49 ± 0.73 | 0.007 |