Narendra Nath, D (MAJOR)Naga Raja Kumari, KKavitha, PRAJA SAMBA MURTHY, K2021-07-282021-07-282021-03https://krishikosh.egranth.ac.in/handle/1/5810170995THESESA biological trial was conducted to study the effect of supplementation of ginger, garlic and their combinations as growth promoters in Japanese quail diets on growth performance, serum biochemical profile, carcass traits, organoleptic characteristics and cost economics of Japanese quail. One-hundred-and-fifty-day old quail chicks were distributed randomly in to five treatments with three replicates containing ten birds each and fed with five experimental diets T1 (Basal diet), T2 (Basal diet supplemented with 1% ginger), T3 (Basal diet supplemented with 2% garlic), T4 (Basal diet supplemented with 0.25% ginger and 0.5% garlic) and T5 (Basal diet supplemented with 0.5% ginger and 1% garlic). Name of the author: KILLAMPALLI. RAJA SAMBA MURTHY Title of thesis : EFFECT OF SUPPLEMENTATION OF GINGER, GARLIC AND THEIR COMBINATION AS GROWTH PROMOTERS ON PRODUCTION PERFORMANCE OF JAPANESE QUAIL Degree to which it is submitted : Master of Veterinary Science Faculty : Veterinary Science Department : Poultry Science Major advisor : Dr. D. NARENDRA NATH M.V. Sc, Ph.D., Professor & University Head Department of Poultry Science N.T.R College of Veterinary Science Gannavaram – 521 102 University : Sri Venkateswara Veterinary University Tirupati – 517 502, (AP), India. Year of submission : 2021 The results of present study revealed no significant difference in 5th week mean body weights where the mean body weights ranged from 210.73 to 221.77g. The mean cumulative body weight gains were significantly (p<0.01) increased in treatment groups when compared with control except at T5, where the mean body weight gains ranged from 202.30 to 213.27g. The mean feed intake ranged from 626.80 to 648.23g and not significantly influenced by various treatments. The mean cumulative feed efficiency was not significantly differed among T1, T2, T3 and T4, where values ranged from 2.99 to 3.20. Whereas significantly (p<0.05) poor feed efficiency was observed in T5 when compared with all other groups. The serum total protein, serum albumin and serum globulin were not significantly influenced by various levels of ginger, garlic and their combinations. The mean serum total cholesterol values were significantly (p<0.05) decreased in T3 and T5 groups and a numerical reduction in serum total cholesterol was observed in all the treatment groups when compared with control. The mean serum HDL cholesterol values were significantly (p<0.05) increased in T5 group and a numerical increment in serum HDL cholesterol was observed in all the treatment groups when compared with control. The mean serum LDL cholesterol values were significantly (p<0.05) decreased in all the treatment groups when compared with control. Mean serum triglyceride values were significantly (p<0.05) decreased from T3 to T5 groups when compared with control. Carcass traits like mean dressing percentage, mean weights of liver, heart and gizzard did not show any significant difference among the treatment groups. The sensory evaluation scores were improved significantly (p<0.05) pertaining to colour, flavor, juiciness, tenderness and overall acceptability when compared with the control and the highest score for overall acceptability was observed in T5. xxi The feed cost per Kg live weight gain was significantly (p<0.01) increased among the treatment groups where the values ranged from 97.08 to 124.20 rupees and the lowest value was recorded in control only. Thus, the present study indicated that the supplementation of either ginger, garlic and their combinations in diets may not be economically feasible for producing Japanese quail meat but, supplementation of either T4 (0.25% ginger and 0.5% garlic) or T5 (0.5% ginger and 1% garlic) can be recommended for the production of designer meat with low cholesterol, low triglycerides and improved meat quality.EnglishThesis