Effects of copper-enriched yeast on reproductive hormone level during estrous cycle in Simmental heifers

Sixteen Simmental steers consuming a corn straw diet were stratified by weight and randomly assigned in a block design to evaluate the effects of different copper-enriched yeast levels on nutrients digestibility,nitrogen balance and serum parameter.

Breeding and fermentation condition optimization of a selenium-enriched yeast strain;

Breeding of a high-biomass and selenium-enriched yeast strain;

Determination of selenium in selenium-enriched yeast with hydride generation atomic fluorescence spectrometry

Optimization and analysis of the cultivation of chromium-enriched yeast;

Study on Preparation of Chromium-enriched Yeast by Discarded Brewers Yeast;

High-biomass,chromium-enriched yeast strain ZGH-8 was constructed by primary screening,isolation of haploid,mutagenesis and hybridization.

Using sugar-cane molasses to produce iron-enriched yeast and analyzing the percentage of organic iron of the yeast cell;

The biomass and iron content of iron-enriched yeast were measured.

The thesis studies production of iron-enriched yeast by using sugar cane molasses as materials.

The biological effect of chromium and application of chromium-riched yeast in treatment for diabetes;

Study on the lethality rate of yeast 1254 and screening for high producing chromium-riched yeast strain by ultraviolet radiation;

Effect of Se-enriched yeast in hen diets on the selenium content and distribution in eggs;

The result shows that rotate speed, temperature and the initial pH have a high effect on the biomass of Se-enriched yeasts by Plackett-Burman experiment.