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001-es BibID:	BIBFORM135175
Első szerző:	Mohammed, Elshafia Ali Hamid (agrármérnök)
Cím:	Growth Performance, Gut Integrity and Intestinal Microbiome Responses of Juvenile Common Carp (Cyprinus carpio L.) to Probiotic and Prebiotic Supplementation / Elshafia Ali Hamid Mohammed, Milán Fehér, Péter Bársony, Christopher Teye-Gaga, Levente Czeglédi, Csongor Freytag, Alex Váradi, Abdelhakam Esmaeil Mohamed Ahmed, Károly Pál
Dátum:	2026
ISSN:	2076-2615
Megjegyzések:	The aim of this study was to examine the impact of the probiotics Saccharomyces cerevisiae (SC) and Pediococcus acidilactici (PA), as well as the prebiotic yeast cell wall extract (Cyberlindnera jadinii and S. cerevisiae) (YP), on the growth parameters, intestinal histomorphology, liver and gills normality, and gut microbiome of common carp (Cyprinus carpio L.). These feed supplements were subjected to a 60-day experimental period, during which 120 fish (26.4 ? 5.2 g) were distributed into four groups, with each group comprising 30 fish. The feed supplements were administered at a rate of 1 g/kg of body weight. Before the trial, the fish were acclimatized for two weeks, then injected with Passive Integrated Transponder (PIT) tags. The results showed that none of the feed supplements exhibited a significant effect (p > 0.05) on growth indices. In contrast, the villi length, villi width, muscular thickness, and crypt depth in the anterior, mid, and posterior intestine of the SC group exhibited significant (p < 0.05) improvements compared to the other groups. No alteration or abnormal growth were noticed in the gills and livers. The most dominant microbe genera in all groups, with abundances greater than 60% of the total, were Cetobacterium and Aeromonas. However, Polynucleobacter, Nordella, Mycoplasma, Romboutsia, and Staphylococcus species were present at lower abundances. The presence of Actinobacteria has been observed only in the intestine of fish that have been fed a diet supplemented with PA. It can be concluded that the tested probiotics and the yeast cell wall prebiotic have the potential to produce a remarkable improvement in intestinal morphology and a considerable change in the gut microbiome without notable effect on growth, livers, or gills of common carp.
Tárgyszavak:	Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk common carp Pediococcus acidilactici Saccharomyces cerevisiae yeast extract histomorphology oxford nanopore sequencing gut microbiota
Megjelenés:	Animals. - 16 : 3 (2026), p. 433. -
További szerzők:	Fehér Milán (1985-) (agrármérnök) Bársony Péter (1975-) (agrármérnök) Teye-Gaga, Christopher (1979-) Czeglédi Levente (1977-) (agrármérnök) Freytag Csongor (1993-) (biológus) Váradi Alex (1991-) (biológus) Ahmed, Abdelhakam Esmaeil Mohamed (1984-) (Food Engineer) Pál Károly (1978-) (mikrobiológus)
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001-es BibID:	BIBFORM119838
Első szerző:	Mohammed, Elshafia Ali Hamid (agrármérnök)
Cím:	Survey on antibiotic resistant bacteria in commercial fish ponds / Elshafia Ali Hamid Mohammed; Renáta Bőkényné Tóth; Gábor Kardos; Csongor Freytag; Károly Pál
Dátum:	2024
Megjegyzések:	Fish is a valuable source of proteins and commercial fish farms help to satisfy the demand. Hungarian farms produce a large amount of fresh fish every year, in many lakes countrywide. Due to the fish farming activities (the use of antibiotics for curing fish with bacterial infections) and the migrating birds (reservoir of pathogenic microbes), these lakes may be sources of pathogenic bacteria that confer antibiotic resistance. These bacteria may pose a threat not only to the fish but employees and consumers, as well. A joint project of the Institute of Metagenomics and the microbiology laboratory of the Institute of Food Sciences is to perform regular surveys on the microbiological quality of fish farm lake water, with emphasis on the detection of possible AMR bacteria, in accordance with the Farm to Fork Strategy. The survey started in 2023 and 10-10 lakes were sampled in two fish farms, respectively. After filtration of water samples, bacteria were isolated on vancomycine and Eosine Methylene Blue agar plates, then identified by MALDI-TOF. Though, numerous bacterial species were found, no traces of vancomycine resistant Enterococcus isolates were found yet.
Tárgyszavak:	Agrártudományok Állattenyésztési tudományok előadáskivonat könyvrészlet
Megjelenés:	1st Debrecen Online Conference on Infectious Diseases in a One Health context (DOCIDOH) : Book of abstracts. - p. 12
További szerzők:	Bőkényné Tóth Renáta (1988-) (biológus) Kardos Gábor (1974-) (absztraktok) Freytag Csongor (1993-) (biológus) Pál Károly (1978-) (mikrobiológus)
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