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Related Concept Videos

Microbial Growth Measurement: Direct Methods01:23

Microbial Growth Measurement: Direct Methods

Direct methods for measuring microbial populations in a culture are essential tools in microbiology, providing quantitative data for various applications. Among these, microscopic counts, plate counts, and serial dilution are widely used techniques, each with unique principles and applications.Microscopic CountsMicroscopic counting involves the use of a Petroff-Hausser chamber, a specialized microscope slide with a grid and defined depth. By observing a liquid culture under a microscope,...
Microbial Growth Measurement: Indirect Methods01:27

Microbial Growth Measurement: Indirect Methods

Estimating microbial growth is essential for understanding population dynamics and environmental adaptations. Indirect methods provide valuable insights by measuring parameters such as turbidity, metabolic activity, and biomass, enabling efficient and reproducible assessments.During exponential growth, microbial cells scatter light proportionally to their biomass, a principle used in turbidity measurements. About one million cells per milliliter produce detectable scattering, which a...

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Related Experiment Video

Updated: Jun 18, 2026

A Hybrid DNA Extraction Method for the Qualitative and Quantitative Assessment of Bacterial Communities from Poultry Production Samples
07:24

A Hybrid DNA Extraction Method for the Qualitative and Quantitative Assessment of Bacterial Communities from Poultry Production Samples

Published on: December 10, 2014

[Microflora studies of broiler density breeding]

M Aleksandrov

    Veterinarno-Meditsinski Nauki
    |January 1, 1980
    PubMed
    Summary

    Broiler room air shows higher fungal spore levels, especially with denser housing. This study identifies infection sources and offers strategies to combat fungal diseases and mycotoxin effects in poultry.

    Area of Science:

    • Veterinary Mycology
    • Poultry Science

    Context:

    • Intensive broiler farming presents challenges in maintaining optimal environmental conditions.
    • High stocking densities can exacerbate airborne microbial contamination.

    Purpose:

    • To conduct mycological studies in broiler rooms to assess fungal contamination.
    • To identify sources and species of fungi, including mycotoxin presence.
    • To evaluate the impact of stocking density on air and material fungal loads.

    Summary:

    • Mycological analysis of air, litter, and feed in broiler rooms revealed significant fungal spore contamination.
    • Higher fungal spore levels were observed in densely stocked rooms (more than 16–18 broilers/m²) compared to less dense conditions.
    • Pathological samples from broilers confirmed the presence of mycotic agents, with vertical spore spreading identified as a key transmission route.

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    Strategies to Enhance Cultivation of Anaerobic Bacteria from Gastrointestinal Tract of Chicken

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    Related Experiment Videos

    Last Updated: Jun 18, 2026

    A Hybrid DNA Extraction Method for the Qualitative and Quantitative Assessment of Bacterial Communities from Poultry Production Samples
    07:24

    A Hybrid DNA Extraction Method for the Qualitative and Quantitative Assessment of Bacterial Communities from Poultry Production Samples

    Published on: December 10, 2014

    Production of Germ-Free Fast-Growing Broilers from a Commercial Line for Microbiota Studies
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    Production of Germ-Free Fast-Growing Broilers from a Commercial Line for Microbiota Studies

    Published on: June 18, 2020

    Strategies to Enhance Cultivation of Anaerobic Bacteria from Gastrointestinal Tract of Chicken
    04:36

    Strategies to Enhance Cultivation of Anaerobic Bacteria from Gastrointestinal Tract of Chicken

    Published on: May 10, 2024

    Impact:

    • Findings highlight the increased risk of mycological diseases in high-density broiler operations.
    • Identified fungal species and transmission routes inform targeted disease prevention strategies.
    • Recommendations are provided to mitigate the adverse effects of mycotoxins on poultry health and productivity.