EVALUATION OF ALOE VERA, OLIVE POMACE, VITAMIN C AND VITAMIN E AS ANTIOXIDANT ON FUNCTIONALITY AND INTEGRITY OF GASTROINTESTINAL TRACT OF GROWING RABBITS | ||||
| Journal of the Egyptian Veterinary Medical Association | ||||
| Volume 79, Issue 4, December 2019, Page 1141-1174 PDF (969.21 K) | ||||
| Document Type: Original Research Articles | ||||
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| Abstract | ||||
| The aim of the present study was to investigate the antioxidant function of aloe vera gel, olive pomace, vitamin C, and vitamin E as a feed additive on gastro-intestinal functionality and integrity of growing rabbits. The present study was carried on 48 New Zealand White rabbits (NZW) of 6 weeks old. The experiment lasted for 10 weeks. Rabbits were equally divided into eight groups, control group which was fed on a basal diet, group (A) was fed on a basal diet and water supplemented with aloe vera gel at a dose (500mg/L) and group (C) was fed on a basal diet and water supplemented with vitamin C(250mg/L), group (E) was fed on a basal diet and water supplemented with vitamin E (1ml/L), (O) group was fed on a basal diet to which 10% olive pomace was added, (CE) group fed a basal diet and water supplemented with both vitamins (C&E) by the previous doses, (ACE) group, of which its water supplemented with aloe vera gel ,vitamin C and vitamin E by the previous doses, (OCE) group fed the diet to which olive pomace and both vitamins in water was added. Performance parameters were measured (Live body weight (LBW), feed intake (FI) and feed conversion ratio (FCR)) at the end of the experiment. Serum samples were collected to measure biochemical and antioxidant parameters. Tissue samples of duodenum were collected and prepared for histomorphology and molecular studies. The results revealed that: [1] most supplements had no significant effect on body weight, while (FI) was decreased in (C), (O) and(OCE) groups. Moreover, the (FCR) was only decreased in group (C). [2] A hypoglycemic and a hypocholesterolemia were detected in group (A), (E), (CE), (ACE) and (OCE). [3] There were no significant variations in liver enzymes (ALT and AST) and kidney function tests (Creatinine and Urea) between all groups. [4] Regarding the antioxidant parameters of all supplemented groups, a significant increase of most of antioxidant parameters was determined with a significant decrease of serum Malonaldehyde (MDA).[5] DNA concentration in duodenum and pancreatic tissues increased significantly in group supplemented with (ACE), while protein concentration of pancreatic tissue recorded a significant higher value in group (CE). DNA to Protein ratio revealed a significant increase in groups supplemented with (A), (C) and (ACE) which indicate increase of cell size. [6].The duodenum morphometry showed best villous height/crypt depth ratio of group supplemented with (A) than other supplemented groups. Conclusively it was obvious that the rabbits supplemented with aloe vera gel mixed with vitamin C and E in supplied water had the best antioxidant activity and the used supplements have no harmful effect on liver and kidney measured parameters. Furthermore the olive pomace supplemented diet can be considered as a cheapest diet. | ||||
| Keywords | ||||
| New Zealand White rabbits; Aloe vera gel; Olive pomace; Vitamin C and Vitamin E | ||||
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