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Related Experiment Video

Updated: May 12, 2026

High-throughput Fluorometric Measurement of Potential Soil Extracellular Enzyme Activities

High-throughput Fluorometric Measurement of Potential Soil Extracellular Enzyme Activities

Published on: November 15, 2013

[Not Available].

A Höhling¹, M Höltershinken, P Hoffmann

¹Klinik für Rinderkrankheiten der Tierärztlichen Hochschule Hannover, Bischofsholer Damm 15, 30173, Hannover, Deutschland.

Mycotoxin Research

|April 23, 2013

Summary

This summary is machine-generated.

Moulded hay negatively impacted rumen protozoa, with some fungi causing significant reductions. Vitamin B1 substitution offered a protective effect against specific fungal contaminants in this rumen simulation study.

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Area of Science:

Animal Science
Microbiology
Ruminant Nutrition

Context:

Moulded hay poses a risk to livestock feed quality.
Rumen protozoa play a crucial role in ruminant digestion.
Understanding fungal impacts on rumen microbes is vital for animal health.

Purpose:

To investigate the effects of specific moulded hays (Alternaria alternata, Epicoccum nigrum, Mucor racemosus, Ulocladium chartarum) on rumen protozoa populations.
To evaluate the efficacy of Vitamin B1 supplementation in mitigating these negative effects.
To assess the impact on medium-sized protozoa using the rumen simulation technique (RUSITEC).

Summary:

Feeding moulded hay containing Alternaria alternata, Epicoccum nigrum, Mucor racemosus, and Ulocladium chartarum differentially affected rumen protozoa.
Epicoccum nigrum caused the largest reduction in medium-sized protozoa (-27%), while Ulocladium chartarum showed a slight increase (+2%).
Vitamin B1 substitution demonstrated a beneficial effect when feeding Mucor racemosus and Ulocladium chartarum-contaminated hay.

Impact:

Highlights the varying toxicity of different fungal species found in moulded hay.
Suggests a potential nutritional strategy (Vitamin B1) to counteract negative effects of contaminated feed.
Provides insights into rumen microbial dynamics under toxicological stress for improved livestock management.