KANNAN D.MEHALA C.TANUVASMOORTHY, M.NATARAJAN, A.SIVAKUMAR, K.RAMACHANDRAN, M.2024-01-022024-01-022021https://krishikosh.egranth.ac.in/handle/1/5810205318Biological trials were conducted in commercial broiler chicken and layer chicken from day old to five weeks of age and day old to 30 weeks of age respectively to evaluate the production performance of broilers and layers by dietary supplementation of panchagavya and phytogenic feed additives. In the first biological trial, two-hundred and forty day old broiler chicks were randomly allotted into six treatment groups with five replicates of eight chicks each and consisted of control-basal diet (T1) and other treatment groups consisted of basal diet with oxytetracycline- 50 ppm (T2), panchagavya -7.5 g/kg (T3), panchagavya - 7.5 g/kg and Andrographis paniculata – 2 g/kg (T4), panchagavya -7.5 g/kg and garlic -1 g/kg (T5) and panchagavya -7.5 g/kg and turmeric-1 g/kg (T6). All the birds were reared in deep litter under standard management practices throughout the study period. The results on supplementation of panchagavya and phytogenic feed additives in commercial broiler chicken at 5 weeks of age revealed significant (P<0.01) difference in mean body weight (g) and body weight gain (g). The body weight (1797, 1728.40 and 1719.35 g) and body weight gain (1748.95, 1681.61 and 1671.98 g) were significantly (P<0.01) higher in T2 (antibiotic fed group) followed by T6 (PG and turmeric fed group) and T3 (PG fed group) than all other groups. The data on cumulative feed consumption (g) revealed a highly significant (P<0.01) difference between the treatment groups from 1 to 4 weeks of age, but had no significant difference in feed consumption at 5th week of age and observed that T6 (PG and turmeric) group recorded higher feed consumption (2513.27 g) whereas lower feed consumption (2390.39 g) was noticed in T1 group (basal diet).EnglishThesis