A selection experiment on a white leghorn strain under Ahemeral light‐dark Cycles
- 1 January 1981
- journal article
- research article
- Published by Taylor & Francis in British Poultry Science
- Vol. 22 (1) , 35-48
- https://doi.org/10.1080/00071688108447861
Abstract
Selection was carried out for increased ovulation frequency in 2 flocks; under ahemeral (9 generations of selection) or normal (8 generations) light-dark cycles. By the use of an ahemeral regime, the barrier to progress imposed by the limit of 1 ovulation in each light-dark cycle was evaded. Both flocks achieved a considerable increase in oviposition frequency, but so far there has been little evidence of any advantage in this respect due to the ahemeral regime. There was a marked correlated decrease in egg weight in both flocks.This publication has 4 references indexed in Scilit:
- Random genetic drift in an egg-laying strain of poultryGenetics Research, 1980
- Changes in Egg Production and Egg Intervals Under Selection for High Egg Number under 22 our Day Cycles of Artificial LightingPoultry Science, 1979
- An Estimation of the Advances Achieved over Seven Years by Selection within Commercial Egg-Laying BreedsWorld's Poultry Science Journal, 1977
- The effect of light‐dark cycles of abnormal lengths upon egg productionBritish Poultry Science, 1968