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Background: Rajasri, a synthetic dual purpose variety suitable for backyard rearing. The current study was aimed to study the inheritance of Rajasri birds. Methods: This study was carried out during April 2019 to August 2019 at poultry research station, Hyderabad. Data collected on 6980 chicks produced from 220 sires and 660 dams in half sib mating in 4 hatches were utilized to estimate the genetic parameters.Result: Highly significant (P≤0.01) influence of hatch and sex on body weights and average daily gains and shank length was observed. The overall least-squares means of body weights at birth, 2, 4, 6, 8, 10, 12, 14, 16, 18 and 20 weeks of age were 32.35±0.4, 80.87±0.17, 184.29 ±0.44, 351.49±0.76, 576.16±1.10, 741.31±0.97, 878.03±0.91, 1038.9±0.91, 1160.61±0.99, 1271.59±1.27 and 1370.64±1.72g and shank length at 4 and 6 weeks of age were 47.49±0.05 and 62.18±0.06 mm, respectively. The overall least-square means of average daily gain peaks at 6-8 weeks age. Heritability estimates of body weights through sire component ranged from 0.04±0.016 (BW20) to 0.44±0.05 (BW0). Genetic and phenotypic correlations among body weights were ranged from 0.02±0.14 (BW6-BW14) to 0.98±0.01 (BW16-BW18) and 0.003±0.01 (BW2-BW20) to 0.93±0.01 (BW18-BW20), respectively.

Production of sewage sludge is increasing day by day all over the world. By disposing of the sewage sludge the environmental issues take place in the society. Hence the research for replacement of cement using sewage sludge ash is essential to reduce the use of natural resources. Certainly as pond ash also coal ash as waste which compresses of bottom ash and fly ash. They contain the major chemical components which cement contain. So the major aim in this research study is to the best use of Biochar and pond ash in concrete. Concrete M20 specimens are prepared according to IS10262-2019 and by replacing cement with 5% Biochar and sand with 2-30% of pond ash by varying percentages in steps of 2 and the compressive strength was determined finally observed that 20% replacement of pond ash and 5% Biochar is giving the optimum value of compressive strength.