AI Article Synopsis
- The study tested whey fermented with kefir grains as a way to reduce fungal contamination in poultry feed, which can cause economic losses and health issues.
- Fermented whey significantly decreased the germination of multiple fungal species and made the feed two to four times more resistant to contamination compared to untreated feed.
- Additionally, the fermented whey maintained high levels of beneficial microorganisms even after 30 days, enhancing the feed's safety and shelf life.
Article Abstract
Background: Fungal contamination of poultry feed causes economic losses to industry and represents a potential risk to animal health. The aim of the present study was to analyze the effectiveness of whey fermented with kefir grains as additive to reduce fungal incidence, thus improving feed safety.
Results: Whey fermented for 24 h at 20 °C with kefir grains (100 g L(-1) ) reduced conidial germination of Aspergillus flavus, Aspergillus parasiticus, Aspergillus terreus, Aspergillus fumigatus, Penicillium crustosum, Trichoderma longibrachiatum and Rhizopus sp. Poultry feed supplemented with fermented whey (1 L kg(-1) ) was two to four times more resistant to fungal contamination than control feed depending on the fungal species. Additionally, it contained kefir microorganisms at levels of 1 × 10(8) colony-forming units (CFU) kg(-1) of lactic acid bacteria and 6 × 10(7) CFU kg(-1) of yeasts even after 30 days of storage.
Conclusion: Fermented whey added to poultry feed acted as a biopreservative, improving its resistance to fungal contamination and increasing its shelf life.
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| http://dx.doi.org/10.1002/jsfa.6669 | DOI Listing |
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