Article
Genotypic differences in speed and magnitude of response to ahemeral lighting.
British poultry science - 1 Dec 1993
Shanawany M M, Sørensen P, Pirchner F
Abstract excerpt
1. The paper compares between three genetically different lines in their egg weight and shell thickness response to a 28-h cycle. 2. The response in shell thickness to ahemeral lighting was more rapid (2.2 d) than for egg weight (4.2 d). 3. Differences between genotypes were evident in both the speed and magnitude of response. 4. Overall, egg weight and shell thickness on the 28-h cycle were 7% and 8% greater...
Topics
- Animals
- Chickens
- Egg Shell
- Eggs
- Female
- Genotype
- Photoperiod
