The effects of lighting programs on reproductive ...

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Title The effects of lighting programs on reproductive performance of turkey males. III
Author(s) L. C. Lu, C. W. Chan, Mary A. McNiven, R. B. Buckland
Related item Research reports, Department of Animal Science, McGill University
Date 1986
Abstract 120 broiler-type [male][male] were kept under a regime of 23-h light:1-h darkness (23L:1D) at 54 lux from 1 day to 5 wk of age, when they were divided into 6 groups subjected to 12L:12D or 16L:8D at 5.4, 10.8 or 54 lux. Semen production and the fertility of semen diluted 1:3 in Lake's diluent were studied between 25 and 51 wk of age. Lighting significantly affected the percentage of [male][male] producing semen (from 49.6+or-3.0 for 12L:12D at 10.8 lux to 68.7+or-2.7 for 16L:8D at 10.8 lux), ejaculate volume (from 0.16+or-0.01 ml for 12L:12D at 10.8 lux to 0.21+or-0.02 ml for 16L:8D at 10.8 lux), and fertility of eggs set (from 63.4+or-1.7% for 16L:8D at 5.4 lux to 74.1+or-1.42 for 12L:12D at 10.8 lux). Sperm concentration was not significantly affected by light regime..

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