Effect of MYCO-AD on experimental T-2 toxicosis in broiler chickens

The authors examined the effect of MYCO-AD containing hydrated sodium calci um aluminium silicate (Delacon Biotechnik Ges, m. b. H.) on T-2 toxicosis i n broiler chickens by experimental feeding. Testing chickens were divided i nto 3 groups, 25 birds each. Group I. (control group) got toxin-free feed, group II. got feed containing 1 mg/feed kg T-2 toxin, group III. got feed containing 1 mg/feed kg T-2 to xin and 2.5 kg/feed ton (=2.5 g/feed kg) MYCO-AD too from the day of hatchi ng until the 40th day. T-2 toxin was produced by fungus Fusarium sporotrich oides on rice substratum. At the end of the trial in the group IZ, the feed intake was 21% behind and the body mass was 23% behind the control group, respectively, In the case of 80-90% of animals on the mucosa of the mouth and on the corner of the bi ll necrotic sediments were stated. In the Bursa Fabricii and the thymus a d ecrease of diameter of follicles and lobes, and a reduced amount of lymphoc ytes were determined. No animal dropped out. At the end of the trial, in on e third of the animals killed in the hypodermic interstitial tissue oedemat ous infiltration, in the abdominal cavity accumulation of a straw-yellow Li quid were observed The effect of T-2 toxin was almost completely prevented by feeding MYCO-AD. Feed-intake, gain in weight and feed conversion of group m. were equal wit h those of the control group, and some values were even more favourable in group m. than in the control group, In about 15-30% of animals lesions of m outh were stated in a moderate way, but it did not affect the development o f animals. There were no histopathological changes in the internal organs. On the basis of the evaluation of results of the trial it can be establishe d that toxicosis caused by 1 mg T-2 toxin/feed kg in broiler chickens can b e prevented by feeding 2.5 kg MYCO-AD/feed ton.