Table 3.

Effects of L. paracasei LK01 on egg quality in laying hens.

Items	CON	LLP	MLP	HLP	p-value
Albumen height/mm	7.06 ± 0.31b	7.14 ± 0.27ab	7.36 ± 0.38ab	8 ± 0.30a	<0.001
Haugh unit	83.98 ± 1.95b	84.02 ± 1.90ab	84.88 ± 1.72ab	87.92 ± 1.60a	<0.001
Egg weight/g	59.20 ± 1.66b	60.34 ± 0.68ab	62.98 ± 4.96ab	65.80 ± 1.38a	<0.001
Eggshell Strength/N	4.28 ± 0.78b	4.77 ± 0.12a	4.66 ± 0.45ab	4.49 ± 0.38ab	0.011
Egg Shape Index	1.27 ± 0.01	1.30 ± 0.11	1.31 ± 0.20	1.31 ± 0.04	0.607
Eggshell thickness/mm	0.336 ± 0.005	0.368 ± 0.010	0.369 ± 0.006	0.357 ± 0.004	0.134

CON, control, basal diet; LLP, basal diet + 10⁶ CFU/kg L. paracasei LK01; MLP, basal diet + 10⁷ CFU/kg L. paracasei LK01; HLP, basal diet + 10⁸ CFU/kg L. paracasei LK01. Different letters in the same row indicate significant differences (p < 0.05). Results are expressed as mean ± standard error of the mean (SEM). n = 8.