The influence of cadmium on the growth and vital functions of cattles rumen microorganisms in vitro and methods of its toxic action decrease

N. I. Talokha, B. M. Kurtjak

The addition to rumens content of cattle in vitro of cadmium salt in maximally possible amount, represses growth of microorganisms and their metabolic activity, that leads to reduced formation of ammonia and volatile fatty acids and decrease of amylotic, proteolitic and cellulolitic activity. The addition of zeolite and polysorb, trace elements - iron, copper, zinc, selenium and vitamin E to the incubation medium with cadmium positively effects on vital functions and metabolic activity of rumen's microorganisms. Iron mainly effect on cellulosolytic group of microorganisms, zinc - on amilolityc group. The total concentration of volatile fatty acids increased in the incubation medium with cadmium with polysorb, zeolite, sodium selenite addition. The addition of zinc, vitamin E, iron, polysorb lead to increase of microbial mass. It was shown in experiments in vitro, that addition of sodium selenite and vitamin E positively effects on the growth and vital activity of rumen's microorganisms.

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