Ramakrishnan, ALeo, JosephKAU2020-01-062020-01-061979http://krishikosh.egranth.ac.in/handle/1/5810139623PGAn experiment was conducted to compare Australorps, (ALP), Rhode Island Red (RIR) and White Plymouth Rock (WPR) breeds of chicken and their crosses for broiler production. All the nine possible combinations of these breeds were taken, the genetic groups being three purebred and crossbreds. There were twenty chicks for each group and a total of 180 chicks. They were raised upto twelve weeks of age on deep better identical conditions of management. Body weight was recorded at ten and twelve weeks of age. Feed efficiency and genetic effects – General combining ability, Specific combining ability and Reciprocal effects on body weight-were also calculated at ten weeks of age. Slaughter studies were conducted at ten and twelve weeks of age.ennullThesis