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Differences in fungal contamination of broiler litter between summer and winter fattening periods Cover

Differences in fungal contamination of broiler litter between summer and winter fattening periods

Archives of Industrial Hygiene and Toxicology
Volume 72 (2021): Issue 2 (June 2021)
By: Mario Ostović,  Ivica Ravić,  Matija Kovačić,  Anamaria Ekert Kabalin,  Kristina Matković,  Ivana Sabolek,  Željko Pavičić,  Sven Menčik and  Danijela Horvatek Tomić  
Open Access
|Jun 2021

Figures & Tables

Figure 1

Comparison of weekly total fungal concentrations in broiler litter between the summer and winter fattening periods (values are expressed as means ± 95 % confidence intervals). a marks weekly values of the same season that did not differ significantly; other values differed significantly (P<0.05). * weekly values that differed significantly between the seasons (P<0.05). CFU – colony forming units
Comparison of weekly total fungal concentrations in broiler litter between the summer and winter fattening periods (values are expressed as means ± 95 % confidence intervals). a marks weekly values of the same season that did not differ significantly; other values differed significantly (P<0.05). * weekly values that differed significantly between the seasons (P<0.05). CFU – colony forming units

Figure 2

Comparison of weekly broiler litter temperatures between the summer and winter fattening periods (values are expressed as means ± 95 % confidence intervals). a,b same letters mark weekly values of the same season that did not differ significantly; other values differed significantly (P<0.05). All weekly values differed significantly between the seasons (P<0.05)
Comparison of weekly broiler litter temperatures between the summer and winter fattening periods (values are expressed as means ± 95 % confidence intervals). a,b same letters mark weekly values of the same season that did not differ significantly; other values differed significantly (P<0.05). All weekly values differed significantly between the seasons (P<0.05)

Figure 3

Comparison of weekly broiler litter moisture between the summer and winter fattening periods (values are expressed as means ± 95 % confidence intervals). a,b,c,d same letters mark weekly values of the same season that did not differ significantly; other values differed significantly (P<0.05). * weekly values that differed significantly between the seasons (P<0.05)
Comparison of weekly broiler litter moisture between the summer and winter fattening periods (values are expressed as means ± 95 % confidence intervals). a,b,c,d same letters mark weekly values of the same season that did not differ significantly; other values differed significantly (P<0.05). * weekly values that differed significantly between the seasons (P<0.05)

Figure 4

Comparison of weekly broiler litter pH between the summer and winter fattening periods (values are expressed as means ± 95 % confidence intervals). a,b same letters mark weekly values of the same season that did not differ significantly; other values differed significantly (P<0.05). No weekly values differed significantly between the seasons
Comparison of weekly broiler litter pH between the summer and winter fattening periods (values are expressed as means ± 95 % confidence intervals). a,b same letters mark weekly values of the same season that did not differ significantly; other values differed significantly (P<0.05). No weekly values differed significantly between the seasons

Comparison of total litter fungal concentrations, temperature, moisture, and pH between the summer and winter broiler fattening periods

Parameter SummerWinterP
Fungi (CFU/g)Median (range)1.82×104 (3.00×102–1.65×105)3.32×104 (2.00×102–1.58×105)0.62
Temperature (°C)Mean±SD (range)28.80±1.74 (25.60–31.80)26.34±1.75 (22.90–29.80)<0.001
Moisture (%)Mean±SD (range)28.18±10.12 (7.90–42.30)32.17±11.07 (12.60–49.00)0.19
pHMean±SD (range)7.06±1.18 (4.95–8.71)6.83±1.23 (5.42–8.61)0.50

Comparison of litter fungal composition (with concentrations by genera/sections) between the summer and winter broiler fattening periods

Fungal generaCFU/g Median (range)P
SummerWinter
Aspergillus spp.2.00×102 (0–1.40×103)0 (0–5.00×102)<0.01
A. section Flavi1.00×102 (0–1.00×103)Not detected<0.001
A. section Nigri1.00×102 (0–1.40×103)0 (0–5.00×102)0.18
Cladosporium spp.0 (0–1.00×102)Not detected0.82
Fusarium spp.Not detected0 (0–1.00×102)0.82
Mucor spp.Not detected1.00×102 (0–2.90×104)<0.001
Penicillium spp.0 (0–4.00×102)1.50×103 (0–2.85×104)<0.001
Rhizopus spp.0 (0–1.00×102)0 (0–2.00×102)0.83
Yeasts1.71×104 (0–1.64×105)9.20×103 (0–1.35×105)0.19
Unidentified0 (0–1.00×103)0 (0–50)0.03

Correlations between total litter fungal concentrations and litter temperature, moisture, and pH

ParameterTemperature (°C)Moisture (%)pH
Fungi (CFU/g)0.710*0.791*0.918*
DOI: https://doi.org/10.2478/aiht-2021-72-3508 | Journal eISSN: 1848-6312 | Journal ISSN: 0004-1254
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Language: English, Croatian, Slovenian
Page range: 140 - 147
Submitted on: Nov 1, 2020
Accepted on: May 1, 2021
Published on: Jun 28, 2021
Published by: Institute for Medical Research and Occupational Health
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
cold season,
moisture,
mycoflora,
pH,
poultry,
temperature,
warm season
Related subjects:
Medicine,
Basic medical science,
Basic medical science, other

© 2021 Mario Ostović, Ivica Ravić, Matija Kovačić, Anamaria Ekert Kabalin, Kristina Matković, Ivana Sabolek, Željko Pavičić, Sven Menčik, Danijela Horvatek Tomić, published by Institute for Medical Research and Occupational Health
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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