Year: 2020 | Month: June | Volume 10 | Issue 3
Phenotypic Time Trend in Performance Evaluation of Dahlem Red Chicken under Intensive Management in Himachal Pradesh
Krishanender Dinesh
V. Sankhyan
Y.P. Thakur
Rajesh Kumar
N. Bhardwaj
DOI:10.30954/2277-940X.03.2020.13
Abstract:
A study was conducted to evaluate the production performance of Dahlem Red chicken over three consecutive generations maintained in intensive system. Dahlem Red birds were initially procured from CPDO Chandigarh and further produced through selective breeding. Performance traits evaluated were growth (day old chick weight, 4th week body weight (BW), 8th week BW, 12th week BW, 20th week BW and 40th week BW), age at sexual maturity, hen housed egg production (HHEP), hen day egg production (HDEP) and survivor egg production (SEP) at 40, 52 and 72 weeks of age and egg weight at 28, 40 and 52 weeks of age. Analysis revealed positive phenotypic trend in 4 week (17.58 g), 8 week (56.35 g), 12 week body weight (133.5 g), age at first egg (5.5 days) and age at 25% HHEP (2.0 days). The hen housed and hen day egg production at 40, 52 and 72 weeks revealed positive phenotypic trend of 4.79 and 1.93, 15.83 and 8.31, 31.6 and 13.98 eggs respectively. Further, survivor egg production also showed positive trend estimates at 40 and 52 weeks. Declining trends were observed in SEP at 72 week, day old chick weight (-0.89 g), 20 week BW (-37.99 g), 40 week BW (-141.2 g) and egg weight at 28 week (-1.7 g), 40 week (-3.3 g) and 52 week (-2.3 g). The results indicated the effectiveness of the selection along with improved management for bringing improvement in production traits in successive generations.
© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
Print This Article Email This Article to Your Friend
