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Subject: Veterinary Physiology × Author: SATISH × End date: 2023 × Start date: 2023 ×
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    ThesisItemOpen Access
    SATISH
    (KARNATAKA VETERINARY, ANIMAL AND FISHERIES SCIENCES UNIVERSITY, BIDAR, 2023) SATISH; SHRIKANT KULKARNI)
    The current experiment was carried out at Veterinary College, Bidar to study the effects of dietary supplementation of betaine on haemato-biochemical profile, antioxidant status and growth performance in broilers. Eighty, day-old commercial broiler chicks were reared commonly in deep litter system with similar managemental inputs during acclimatization period of two weeks. On 15th day the broilers were divided randomly into four groups with 20 birds in each. Group I (Control) was provided with basal diet, Group II with basal diet supplemented with betaine @ 1g/ kg diet, Group III with basal diet supplemented with betaine @ 2g/ kg diet and Group IV was provided with basal diet supplemented with betaine @ 4g/ kg diet. Haematological parameters analysed manually as per standard protocol for avian blood. Biochemical parameters were estimated using semi-automated biochemistry analyzer. Antioxidant parameters were measured manually by spectro-photometric method. Growth parameters were recorded at weekly intervals. Dressing percentage was measured at the end of the study. The data obtained were analyzed statistically by Two-way ANOVA with the application of Bonferroni’s post-test using ‘GraphPad Prism’ version 5.01 (2007) computerized software. One-way ANOVA with Tukey’s post-test was utilized for analyzing dressing percentage. In the present study, in betaine supplemented group TEC, TLC, Lymphocyte %, TP, Globulin levels and SOD activity were significantly higher in Group III and IV at 5th week of age as compared to those of control group (Group I). Dietary betaine supplementation significantly lowered heterophil %, H/L ratio, Cholesterol, BUN, LPO levels at 4thand 5th week of age as compared to those of control group. In the present study, in betaine supplemented groups (Group III and IV) theweekly body weights, weight gains, dressing percentages were significantly higher and FCR was significant lower at last two weeks of study as compared to those of control group. From the above results it can be concluded that dietary supplementation of betaine improved growth performance and apart from this betaine supplementation had hypolipidaemic and antioxidant effect apart from notable influence on immunity. Feeding betaine is economical owing to its cheap availability and improved growth performance. Key Words: Betaine, Broilers, Haemato-Biochemical, Growth