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RHODE Island Red pullets were divided into 3 approx. equal groups, group I being artificially inseminated in the early morning, group II at noon, and group III in the late afternoon. Each bird was inseminated once with 1 cm.3 mixed semen from the same ♂♂; and 869 eggs were incubated. Fertility was...

Parker, J. E.
Poultry Science, 1945, 24, pp 314-317