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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 s...
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80 ejaculates were obtained from each of 4 [male][male] from a line selected for post-thawing fertility duration of their inseminated spermatozoa, and the same number of ejaculates was obtained from 4 [male][male] of a randombred line. Semen was diluted with N,N-dimethylacetamide (DMA) or glycerol a...
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Semen from [male] fowls of a randombred line and a line selected for increased fertility duration of thawed semen (12 [male][male] per line) was diluted in Lake's diluent with or without glycerol. Half of each sample was frozen to -196 degrees C at -6 degrees per min, and thawed next morning. All se...
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130-day-old [male][male] of the Quebec line were subjected to 6 lighting treatments from 5 wk of age. The percentage of [male][male] producing semen was significantly affected by light regime. Under 12-h light; 12-h darkness (12L:12D) with constant intensity (10.8 lux) or increasing intensity (5.4-5...
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