Table 4. Effect of LED colors on concentrations of 17β-estradiol and progesterone of both plasma and oviduct in brown laying hens housed on floor

Parameters Weeks LED colors SEM P-values
Red Blue Green White
In plasma 17β-estradiol (pg/mL) 3 203.56aB 151.22b 137.02b 159.14bB 8.963 0.030
6 224.50abA 182.08b 189.53b 263.48aA 11.631 0.029
P-values 0.002 0.324 0.213 0.000 - -
Progesterone (pg/mL) 3 707.21aA 410.74b 463.29b 563.37ab 42.105 0.043
6 528.79B 433.22 418.05 510.97 26.912 0.399
P-values 0.002 0.659 0.766 0.653 - -
In oviduct 17β-estradiol (pg/mg) 6 20.68 21.34 23.57 20.59 0.460 0.055
Progesterone (pg/mg) 6 41.29b 36.84b 126.07a 46.65b 10.681 0.000
SEM, Standard error of means
Means in same rows with different superscripts are significantly different (P<0.05).
Means in same columns with different superscripts are significantly different (P<0.05).