National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
A broiler trial was conducted for a period of 42 days to assess the comparative efficacy of the herbal and synthetic methionine on the performance of broilers. A total of 160 day old Vencobb broiler male chicks were divided into five treatment groups namely T1 group birds were fed standard ration without herbal and synthetic source (Control), T2 (25% herbal methionine: 75% synthetic methionine, T3 (50% herbal methionine: 50% synthetic methionine), T4 (75 % herbal methionine: 25% synthetic methionine) and T5 (100% herbal methionine). Each treatment group had four replicates with eight birds in each replicate. The feed intake, mortality, weekly weight gain and feed efficiency were recorded throughout the experimental period. In overall phase, weight gain, feed intake and feed efficiency in T3 group was significantly comparable with control. At the end of the trial, six birds were slaughtered from each treatment revealed that dressing percentage; heart, liver, kidney, abdominal fat and intestinal length do not vary among the groups except for gizzard weight which was higher in T4 and T5 groups when compared to control. The albumin, albumin globulin ratio, triglycerides, total cholesterol, HDL, LDL, AST and ALT levels did not differ significantly. Total protein and globulin levels were found to be numerically higher in T3 and T4 respectively. The liver and breast muscle lipid content was found to be numerically reduced in T3, whereas in thigh higher lipid content was found when compared to control. Supplementation of methionine (T2, T3) was found to provide better returns over that of the control. It can be concluded that feeding of 50% herbal and 50% synthetic methionine is more economical as compared to other treatment groups.
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