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Effect of fluorescent and red light on the development of chick embryo

, : Effect of fluorescent and red light on the development of chick embryo. Indian Journal of Animal Research 19(1): 21-28

Two experiments were conducted to study the effect of light on chick embryo development in three incubators. Red and fluorescent lights, reduced the hatching time by 6.26 and 14.49 hours and 1.58 and 10.51 hours in the first and second experiments, respectively. Pipping time was reduced by 17.08 and 5.77 hours in the two experiments, respectively, by red light while fluorescent light produced a decrease of 10.73 and 1.67 hours in the first and second experiment respectively. Embryos incubated under both types of light were heavier than those incubated in the dark (control). Red light produced the heaviest embryos, after 15 days of incubation the embryos incubated in the dark (control) were heavier than those under either of sources of light. Chicks, hatched under both types of lights were lighter than the controls and had longer shanks. Red light to a greater and fluorescent light to a lesser extent tended to reduce the hatchability and increase embryonic mortality on 4th, 18th and 21st days of incubation.

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