BACKGROUND Although fungal phytase is frequently used as an additive to animal feed few investigations of its allergenic property have been conducted. METHODS Fifty-three subjects occupationally exposed to powdered phytase from Aspergillus niger were studied. Exposure data and symptoms were registered by the company physician. RESULTS Thirty-eight subjects complained of work-related respira...

7 In 1907 Metchnikoff hypothesised that micro-organisms in fermented milk products affected longevity among humans. In the 1960s the term probiotic was introduced for live micro-organisms that, as food or feed supplements, beneficially affect the intestinal microbial balance of humans or animals. Starting in the 1980s the probiotic concept in animal nutrition developed from a novel concept to p...

The possible protective effect of a feed additive (Mycofix) against the toxic effects of 4,15-diacetoxiscirpenol (DAS) in growing broiler chickens was investigated in a 21-d fully randomized trial consisting of seven dietary treatments (control with no DAS or Mycofix added, 1 ppm DAS alone, 1 ppm DAS supplemented with 0.75 g/kg Mycofix, 1 ppm DAS supplemented with 1.5 g/kg Mycofix, 2 ppm DAS al...

This paper characterizes the effective conductivity of lossy metal materials fabricated with additive manufacturing processes at microwave frequencies using a resonant cavity approach. Specifically addressed is powder bed fusion process utilizing AlSi10Mg material Ku-band. The details procedure for converting device parameters that characterize to properties are given. Trade-offs between precis...

The article presents the results of studies on use different dosages feed additive "BioPrimum dry" in diets dairy cows. It was found out that introduction a composition cows at dosage 75 mg/kg dry matter feed, there is an increase blood erythrocytes and hemoglobin by 11.40 6.05%, respectively, compared with analogs control group milk production.