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Table 2 The effect of Bacillus velezensis on the egg quality of laying hens

From: Effect of Bacillus velezensis to substitute in-feed antibiotics on the production, blood biochemistry and egg quality indices of laying hens

  Treatment Control group Antibiotic group Experiment group I Experiment group II
Egg quality index of the first phase EW (g) 62.168 ± 0.801 63.154 ± 1.141 61.659 ± 0.537 58.968 ± 3.766
ESI 1.312 ± 0.007 1.312 ± 0.005 1.299 ± 0.008 1.305 ± 0.008
ESC 26.234 ± 0.491 27.752 ± 1.444 27.110 ± 0.005 26.511 ± 0.414
ESS (× 105Pa) 4.227 ± 0.086a 4.147 ± 0.019a 3.832 ± 0.117b 3.942 ± 0.103ab
YW (g) 15.835 ± 0.293 16.205 ± 0.167 16.006 ± 0.165 15.901 ± 0.732
ESW(g) 8.941 ± 0.138 8.803 ± 0.101 8.651 ± 0.155 8.675 ± 0.119
YC 6.363 ± 1.028 7.713 ± 0.560 7.365 ± 0.771 7.302 ± 0.844
AH (mm) 6.345 ± 0.673 7.733 ± 0.122 6.946 ± 0.828 6.962 ± 0.709
HU 75.497 ± 5.646 86.621 ± 0.864 80.701 ± 6.826 82.039 ± 6.139
TG (mg/g) 79.455 ± 8.725 102.570 ± 7.959 136.104 ± 4.681 124.865 ± 6.275
CH (mg/g) 17.736 ± 0.312 16.713 ± 0.499 17.177 ± 0.307 17.059 ± 0.617
Egg quality index of the second phase EW (g) 63.521 ± 0.290 61.328 ± 1.364 60.575 ± 0.298 61.726 ± 1.449
ESI 1.316 ± 0.003 1.307 ± 0.006 1.314 ± 0.008 1.318 ± 0.013
ESC 25.011 ± 0.593 23.507 ± 0.172 26.638 ± 1.958 24.901 ± 0.497
ESS (× 105Pa) 3.397 ± 0.066 3.868 ± 0.053 4.027 ± 0.173 3.776 ± 0.147
YW (g) 16.011 ± 0.125 15.486 ± 0.342 15.714 ± 0.134 16.144 ± 0.322
ESW (g) 9.096 ± 0.206 8.747 ± 0.270 8.724 ± 0.079 8.542 ± 0.247
YC 6.834 ± 0.190b 7.203 ± 0.245ab 7.330 ± 0.113ab 7.403 ± 0.099a
AH (mm) 6.933 ± 0.021c 8.356 ± 0.170a 8.116 ± 0.073a 7.521 ± 0.178b
HU 80.464 ± 1.378c 90.467 ± 0.787a 89.454 ± 0.415a 85.036 ± 1.606b
TG (mg/g) 287.995 ± 12.579 255.341 ± 44.683 278.300 ± 12.529 306.650 ± 53.577
CH (mg/g) 25.751 ± 2.445 24.413 ± 2.700 25.317 ± 1.323 18.805 ± 1.457
  1. EW Egg weight, ESI Egg shape index, ESC Eggshell color, ESS Eggshell strength, YW Yolk weight, ESW Eggshell weight, YC Yolk color, AH Albumen height, HU Haugh Unit, TG Triglyceride, CH Cholesterol
  2. a, b, c Different lower case superscript were significant different in a row (p < 0.05)