Table 3.

Effects of dietary treatments on egg size of laying hens from 20 to 52 weeks of age

Percentage of eggs with specific egg size (%)	Dietary treatment
	Control	PRE	PRO	SYN
20–36 weeks of age
XL	4.69 ± 0.96	7.60 ± 3.23	7.30 ± 1.65	7.70 ± 3.82
L	30.31 ± 7.50b	34.85 ± 7.08b	41.96 ± 5.15b	46.62 ± 5.31a
M	52.31 ± 5.01a	46.55 ± 2.63b	43.42 ± 3.79b	38.13 ± 3.24c
S	12.69 ± 1.27a	11.00 ± 0.11ab	7.32 ± 2.06c	7.55 ± 2.38bc
37–52 weeks of age
Jumbo	2.04 ± 0.59	2.83 ± 0.44	2.69 ± 0.76	2.85 ± 0.59
XL	12.67 ± 3.24b	20.20 ± 2.61a	20.41 ± 3.97a	20.66 ± 3.50a
L	57.17 ± 5.43b	60.23 ± 4.70a	63.57 ± 3.30a	62.68 ± 4.91a
M	28.13 ± 4.50a	16.74 ± 3.19b	13.32 ± 1.68b	13.81 ± 1.73b

Data represent mean ± SD of four replicates of 10 hens each

^a-cMeans within a row with different superscripts differ significantly (P < 0.05)

Control, basal diet; PRE, basal diet +1% IMO; PRO, basal diet +0.1% PrimaLac®; SYN, basal diet +1% IMO + 0.1% PrimaLac®

Jumbo (>70.88 g); XL, Extra Large (63.79–70.87 g); L, Large (56.70–63.78 g); M, Medium (49.60–56.69 g); S, Small (42.50–49.59 g)