Table 7.

Effects of laying breeder hen dietary β-carotene, curcumin, allicin, and sodium butyrate supplementation on fertilizing capacity and hatchability of breeder eggs.

Items	CON	CCAB
Embryo mortality	3.33 ± 0.67%	0.67 ± 0.07%*
Hatchability of fertile eggs	64.67 ± 6.33%	76.67 ± 1.86%
Hatchability of set eggs	56.67 ± 4.81%	67.33 ± 1.76%
Fertility of set eggs	88.00 ± 1.16%	88.00 ± 1.16%

CON, the control group; CCAB, the β-carotene, curcumin, allicin, and sodium butyrate supplementation group. Significant differences in comparison with the CON group are expressed as *P < 0.05 by Student's t-test. n = 5 plates of 30 eggs each.

Embryo morality = (dead embryos number/set eggs number) × 100%.

Hatchability of fertile eggs = (hatched eggs number/fertile eggs number) × 100%.

Hatchability of set eggs = (hatched eggs number/set eggs number) × 100%.

Fertility of set eggs = (fertile eggs number/set eggs number) × 100%.