TY - BOOK AU - HARPAL Singh TI - Genetic correlation between performance of purebred white leghorn pullets and their crossbread paternal half-sisters from rhode island red dams U1 - T 636.508.243 H31G PY - 1972/// CY - Ludhiana PB - PAU KW - LEGHORNS(POULTRY) KW - POULTRY -- BREEDING KW - RHODE ISLAND REDS ER -