Directional selection for growth at two ambient temperatures in Coturnix coturnix japonica.
Br Poult Sci
; 16(1): 37-44, 1975 Jan.
Article
in En
| MEDLINE
| ID: mdl-1111852
ABSTRACT
Four lines of quail; random-selected, male-selected, female-selected and male- and female-selected lines, were subjected to 37 plus or minus 1-6 degrees C from 3 to 5 weeks of age while another four lines, similarly selected, were reared at room temperature (15 to 27 degrees C). Selection for increased growth was practised for two generations using ten females and five males as parents in each line. A significant interaction between time and temperature was observed in the third generation progeny; when exposed to heat stress, the stress-adapted lines showing a superior growth rate. A sex X temperature interaction was also observed and was due largely to the control females being more sensitive to stress than the males. A cumulative realised heritability estimate of 0-47 plus or minus 0-15 for 5-week body weight was obtained.
Search on Google
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Quail
/
Selection, Genetic
/
Temperature
/
Coturnix
Limits:
Animals
Language:
En
Journal:
Br Poult Sci
Year:
1975
Document type:
Article