- In PB-1, the primary trait of selection was 6 week body weight which was modified to 5 week body weight subsequently. The body weight improved from 995 g to 1390 g in nine generations in PB-1. The phenotypic and genetic response for 5 week body weight was 9.11 and 0.87 g per generation.
- The average five week body weight, the primary trait of selection has improved from 824 g to 1392g in PB-2 over 15 generations. The phenotypic and genetic response at 5 week body weight in PB-2 was 98.96 and 19.72 g, respectively.
- The part period egg production up to 40 weeks of age has improved from 73 to 87 eggs over the last 10 generations.
- The phenotypic and genetic response for 5 week body weight of age in CSML was 15.76 and 10.18 g, respectively over ten generations.
- The phenotypic and genetic response at 5 weeks of age in CSFL was 18.16 and 13.91 g, respectively over fourteen generations.
- The feed efficiency has been improved from 2.76 (S0) to 1.92 (S3) for PB1, and from 2.62 (S5) to 2.1 (S8) for PB2 and the feed efficiency was more or less around 2.00 in most of the generations irrespective of the strain.
- The average age at sexual maturity has decreased from 190 to 177 days in PB1 and 189 to 171 days in case of PB2 lines.
- Four varieties of broiler viz; B-77(CARI, Izatnagar), IBL-80 (PAU, Ludhiana), IBB-83 (UAS, Bangalore) and IBI-91 (CARI, Izatnagar) were developed
(AICRP-Poultry)
