Abstract
The present study investigated the broiler production under different LED light colors and strains. In addition, studying effect of LED light color on body weights at different ages, feed consumption (FC), immunity, growth hormone and some carcass traits. The experiment was extended from January 2019 to February 2019. The highest mean value was recorded for IR strain body weight at 7 days of age (172.4 ± 0.60, 172.2 ± 0.9 and 169.94 ± 0.99 g) in green, blue and white light, respectively. But for Cobb strain (169.42 ± 1.03, 167.22 ± 1.04 and 168.028 ± 0.83 g) in green, white and blue light, respectively. Where, body weight at 35 days of age was recorded for Cobb and IR strains at blue light (2002.17±12.81 g) and (2083.51±19.61 g), respectively, followed by white light (1985.22 g) and (2001.91±16.30 g), respectively, while green light registered the least value (1980.68 g) and (2001.82 ± 10.66 g), respectively. There were significant differences (P ≤ 0.05) in the values of growth hormone concentrations between control group (white light) and other two lights groups blue and green, on other hand, there were no significant differences in the values of growth hormone concentrations between Cobb and IR strains, the interaction between LED colors and strains was insignificant (P = 0.982).
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