TY  - BOOK
AU  - DHIR, Daljit Singh
TI  - Phenotypic and genotypic relationships among components of egg production
U1  - T 636.514 D38P 
PY  - 1974///
CY  - Ludhiana
PB  - PAU
KW  - EGG -- PRODUCTION
KW  - CORRELATION
KW  - EGG COMPONENTS
KW  - POULTRY
N2  - This study was based on the progeny of 589 pullets obtained from the mating of 30 sires. each mated to 6-7 dams in individual sire mating pens. Heritability of annual egg number was low whereas the heritabilities of the three component viz.. average clutc
ER  -