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20211
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Subject: Poultry Science × End date: 2024 × Start date: 2020 × Type: Thesis × Thesis Type: MVSc. ×
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    ThesisItemOpen Access
    Impact of dietary supplementation of lemongrass and peppermint essential oils on the performance of Japanese quail
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-08) Srivastava, Siddhartha; Palod, Jyoti
    An experiment was conducted on 150, six-day-old Japanese quails for a period of 5 weeks, to study the impact of lemon grass and peppermint essential oils supplementation on the growth performance, haematological, certain serum biochemical and health status related parameters, carcass traits and economics of Japanese quails. Experimental Japanese quail chicks were randomly allocated into 5 different treatment groups (T0, T1, T2, T3 and T4) with three replicates of 10 Japanese quail chicks each. Different treatment groups were supplemented with essential oils T0 control (no essential oil), T1(0.1% lemongrass essential oil), T2(0.1% peppermint essential oil), T3(0.05% lemongrass + 0.05% peppermint essential oils) and T4(0.1% lemongrass + 0.1% peppermint essential oils).Growth parameters were studied at weekly intervals as well as for different periods viz. Starter (I-II week), Finisher (III-V week) and Overall period (I-V week). At the end of feeding trial on 35th day, two Japanese quails from each replicate (6 Japanese quails /treatment) were randomly sacrificed for study of carcass yield, yield of cut up parts, organ weights and processing losses. At that time representative blood samples were also collected for haemato-biochemical parameters. Results of experiment indicated that inclusion of lemon grass and peppermint essential oils increased body weight gain, reduced feed intake, improved feed conversion ratio, performance index, protein efficiency ratio and production efficiency factor, with best performance during all the periods was noted in T3 group. The blood picture revealed that TEC, Hb and PCV were improved in T3group of Japanese quails while TLC increased in T2 group over control and MCV and MCH showed significant reduction in T3 group. Serum glucose was reduced in lemongrass and peppermint essential oils supplemented groups with minimum in T2 group. Whereas serum total cholesterol levels were reduced in Japanese quails of all supplemented groups, except T2 with minimum in T3group. Serum triglyceride and LDL-cholesterol were reduced in lemongrass and peppermint essential oils supplemented groups with minimum in T4and T3 group of Japanese quails, respectively. Serum HDL-cholesterol was increased in all lemongrass and peppermint essential oils supplemented groups with maximum value was observed in T3 group of Japanese quails. Serum total protein, albumin and globulin were improved in all lemongrass and peppermint essential oils supplemented groups of Japanese quails with maximum values observed in T3 group of Japanese quails. Serum uric acid, serum creatinine, total bilirubin and SGPT levels were significantly (P<0.05) reduced by lemongrass and peppermint essential oils supplementation in Japanese quails. Lemongrass and peppermint essential oils at 0.05% each in combination significantly (P<0.05) improved dressed yield with and without giblets.Cut up parts in terms of thigh, breast, drumsticks and wing weights were significantly (P<0.05) improved in lemongrass and peppermint essential oils supplemented groups with maximum weight observed in T3group of Japanese quails. Lemongrass and peppermint essential oils improved weights of heart, gizzard and giblets. Liver weight and processing losses were not significantly affected by lemongrass and peppermint essential oils supplementation in any treatment group. Lemongrass and peppermint essential oils supplementation reduced the feed cost per kg weight gain significantly (P<0.01) except T4 group. Minimum feed cost per kg weight gain was noted in Japanese quails of group supplemented with 0.05% each of lemongrass and peppermint essential oils in combination. From the results of present investigation, it can be concluded that dietary lemongrass and peppermint essential oils supplementation at 0.05% each may be advised to improve growth performance, haemato-biochemical parameters, dressed yield and yield of cut-up arts along with economical Japanese quails production. Further research may be carried out using these and other essential oils in laying Japanese quails and other species of poultry.