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1.

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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2.

001-es BibID:BIBFORM128291
Első szerző:Mohammed, Elshafia Ali Hamid (agrármérnök)
Cím:The potential use of Pediococcus spp. probiotic in aquaculture: a review / Elshafia Ali Hamid Mohammed, Abdelhakam Esmaeil Mohamed Ahmed, Christopher Teye-Gaga, Károly Pál
Dátum:2025
ISSN:2416-1640
Tárgyszavak:Agrártudományok Élelmiszertudományok idegen nyelvű folyóiratközlemény hazai lapban
folyóiratcikk
Megjelenés:Acta Agraria Debreceniensis. - 1 (2025), p. 1-9. -
További szerzők:Ahmed, Abdelhakam Esmaeil Mohamed (1984-) (Food Engineer) Teye-Gaga, Christopher (1979-) Pál Károly (1978-) (mikrobiológus)
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3.

001-es BibID:BIBFORM120620
Első szerző:Mohammed, Elshafia Ali Hamid (agrármérnök)
Cím:Impact of Pediococcus acidilactici, Saccharomyces cerevisiae and yang on growth, morphometric parameters and intestinal parameters of the common carp (Cyprinus carpio L.) / Elshafia Ali Hamid Mohammed; Milán Fehér; Péter Bársony; Brigitta Csernus; Christopher Teye-Gaga; Abdelhakam Esmaeil Mohamed Ahmed; Károly Pál
Dátum:2024
ISBN:978-963-306-980-6
Tárgyszavak:Agrártudományok Állattenyésztési tudományok előadáskivonat
könyvrészlet
Megjelenés:21st Wellmann International Scientific Conference : Book of Abstracts / ed. Ingrid Melinda Gyalai; Szilárd Czóbel. - p. 91. -
További szerzők:Fehér Milán (1985-) (agrármérnök) Bársony Péter (1975-) (agrármérnök) Csernus Brigitta (1991-) (élelmiszerbiztonsági és -minőségi mérnök) Teye-Gaga, Christopher (1979-) Ahmed, Abdelhakam Esmaeil Mohamed (1984-) (Food Engineer) Pál Károly (1978-) (mikrobiológus)
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4.

001-es BibID:BIBFORM136494
Első szerző:Teye-Gaga, Christopher
Cím:Combined Substitution of Fishmeal and Fish Oil With Black Soldier Fly Larval Meal and Corn Oil: Effects onGrowth, Hematology, Hematobiochemical, Amino and Fatty Acid Composition, and Fillet Nutritional Quality of Hybrid African Catfish Clarias gariepinus X Heterobranchus longifilis / Christopher Teye-Gaga, Péter István Molnár, Attila Kertész, John Kiguru Maina, Elshafia Ali Hamid Mohammed, Gabriella Gulyás, Levente Czeglédi, Milán Fehér, Péter Bársony
Dátum:2026
ISSN:1353-5773
Megjegyzések:This study aimed to evaluate growth performance, amino acid and fatty acid composition of fillets, and blood biochemistry of hybrid catfish (Heteroclarias) cultured on Black Soldier Fly (BSF), Hermetia illucens larval-based diets. The experiment was conducted in a recirculating system, circular poly tanks (350 L), in a completely randomized design. Four isonitrogenous (400 g kg?1 crude protein) and isolipidic (140 g kg?1 crude fat) diets were formulated in which fishmeal (400 g kg?1) was replaced at 0%, 25%, 50%, and 75% with defatted BSF larval meal and fish oil was completely replaced with corn oil in the test diets. 180 hybrid African catfish (12 weeks posthatching) with an initial body weight of 200? 25 g were randomly distributed in the 12 experimental tanks (15 fish per tank, 45 fish per treatment) and were hand-fed at 3% body weight for 8 weeks. The findings showed that replacing 50% of fishmeal with BSF meal resulted in the highest growth performance (final weight, weight gain, specific growth rate [SGR], thermal growth coefficient [TGC]). However, at 75% level, growth performance and nutrient utilization (FCR, PER) significantly decline (p <0:05). The dietary modification had no significant impact (p >0:05) on organosomatic indices, proximate composition, amino acid profile, deposition, or retention of arachidonic acid (ARA), eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and sum n-3 polyunsaturated fatty acids (PUFA) in fish fillets. There were no significant differences in the hematological parameters (p >0:05) across all treatments. Except for a reduction in globulin and cholesterol levels, all the plasma metabolites, including alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels, remained stable (p >0:05). Overall, the findings of this study suggest that BSF larval meal may partially replace dietary fishmeal up to 50% (200 g kg?1 ), and corn oil may completely replace fish oil in a practical diet for hybrid African catfish without exerting adverse impacts on growth, feed conversion efficiency, fillet quality, health status, and physiological well-being.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
alternative ingredients
health status
muscle composition
production performance
sustainable aquaculture
Megjelenés:Aquaculture Nutrition. - 2026 : 1 (2026), p. 1-22. -
További szerzők:Molnár Péter István (1996-) (Állattenyésztő mérnök) Kertész Attila (1988-) (agrármérnök) Maina, John Kiguru Mohammed, Elshafia Ali Hamid (1987-) (agrármérnök) Gulyás Gabriella (1985-) (agrár) Czeglédi Levente (1977-) (agrármérnök) Fehér Milán (1985-) (agrármérnök) Bársony Péter (1975-) (agrármérnök)
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5.

001-es BibID:BIBFORM134059
Első szerző:Teye-Gaga, Christopher
Cím:Utilization of live feeds in fish larviculture: a review / Christopher Teye-Gaga, Péter István Molnár, Elshafia Ali Hamid Mohammed, Péter Bársony
Dátum:2025
ISSN:1587-1282 2416-1640
Megjegyzések:This review examines the significance of live feeds in commercial aquaculture industry for production of fish and shrimp larvae, along with various challenges and prospects. Live feeds are an essential food source in larviculture, especially for marine fish, which depend on them for nutrition during the initial days of exogenous feeding. They are palatable, highly digestible, and their movement stimulates natural hunting and foraging instincts, promoting better development, lowering captivity stress, and increasing survival rates. Artemia is the most commonly used live feed in larviculture; however, it has low levels of omega-3 HUFA. Copepods are the most nutritionally rich live feed, containing high levels of DHA and EPA. Despite these benefits, they are less frequently used in larviculture due to technical challenges associated with large-scale cultivation at high densities. The use of live feed is labour-intensive and costly. The feeding period for fish larvae can be shortened using a co-feeding strategy. Microalgae rich in DHA have been utilized to enrich live feeds. Further research is needed to determine the most effective approach to significantly reduce the weaning time of fish larvae from live feed. This will lead to gradual and eventual complete replacement of life feed in the near future.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény hazai lapban
folyóiratcikk
Megjelenés:Agrártudományi közlemények = Acta agraria Debreceniensis. - 2025 : 2 (2025), p. 103-116. -
További szerzők:Molnár Péter István (1996-) (Állattenyésztő mérnök) Mohammed, Elshafia Ali Hamid (1987-) (agrármérnök) Bársony Péter (1975-) (agrármérnök)
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6.

001-es BibID:BIBFORM132965
Első szerző:Teye-Gaga, Christopher
Cím:Growth Performance of Hybrid African Catfish Heteroclarias Cultured on BSF Larval-Based Diets / Christopher Teye-Gaga, Péter István Molnár, Milán Fehér, Elshafia Ali Hamid Mohammed, Péter Bársony
Dátum:2024
Megjegyzések:The rising cost of fishmeal and concerns about its sustainability have led to efforts to explore alternative ingredients that could partially replace it. The Black Soldier Fly (BSF), Hermetia illucens larvae hold potential due to their high protein and fat contents. This study evaluated the growth performance of hybrid catfish (Heteroclarias) cultured on BSF larval-based diets. The experiment was conducted in a recirculating system, circular plastic tanks (350 L) in a completely randomized design. Four isonitrogenous (400 gkg-1 crude protein) and isolipidic (140 gkg-1 crude fat) diets were formulated where fishmeal was replaced at 0, 25, 50, and 75% with BSF larval meal and fish oil was completely replaced with corn oil in the test diets. Fish (initial body weight of 200?25 g, 15 fish per tank, 4 treatments, 3 replicates,) were fed at 3% body weight for 8 weeks. All diets were accepted by fish. Fish fed BSF 50 diet had the highest final mean body weight, but the difference was not significant (p>0.05) from those fed the Control diet and BSF 25 diet. Fish fed BSF 75 diet had the lowest mean body weight, which was significantly different (p<0.05) from the other treatments. There were no significant differences (p>0.05) in the FCR among the dietary treatments. The findings of this study suggest that BSF larval meal may partially replace dietary fishmeal up to 50% (200 gkg-1) and corn oil may completely replace fish oil without exerting negative impacts on growth and nutrient utilization of hybrid African catfish, Heteroclarias.
ISBN:978-80-552-2831-0
Tárgyszavak:Agrártudományok Állattenyésztési tudományok előadáskivonat
könyvrészlet
fishmeal
fish oil
black soldier fly
corn oil
growth performance
Megjelenés:Scientific Conference of PhD Students of FAFR, FBFS and FHLE SUA in Nitra : Book of Abstracts / eds. Martina Fikselová, Veronika Štefúnová, Andrea Matuškovičová, Dominik Hollý, Zuzana Schubertová. - p. 37-37. -
További szerzők:Molnár Péter István (1996-) (Állattenyésztő mérnök) Fehér Milán (1985-) (agrármérnök) Mohammed, Elshafia Ali Hamid (1987-) (agrármérnök) Bársony Péter (1975-) (agrármérnök)
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7.

001-es BibID:BIBFORM125914
Első szerző:Teye-Gaga, Christopher
Cím:Effects of Replacing Fishmeal and Fish Oil with Bsf Larval Meal and Corn Oil on Growth Performance, Fillet Composition and Blood Biochemistry of Hybrid African Catfish Clarias Gariepinus - Heterobranchus Longifilis / Christopher Teye-Gaga; Péter István Molnár; Elshafia Ali Hamid Mohammed; John Wa Maina; Kertész Attila; Milán Fehér; Péter Bársony
Dátum:2024
Megjegyzések:The rising cost of fishmeal and concerns about its sustainability have led to efforts in exploring alternative ingredients that could partially replace it. The Black Soldier Fly (BSF), Hermetian illucens larvae hold potential due to their high protein and fat contents. This study aimed to evaluate growth performance, amino acids and fatty acids composition of fillets and blood biochemistry of hybrid catfish (Heteroclarias) cultured on BSF larval-based diets. The experiment was conducted in a recirculating system, circular poly tanks (350 L) in a completely randomized design. Four isonitrogenous (400 gkg-1 crude protein) and isolipidic (140 gkg-1 crude fat) diets were formulated in which fishmeal was replaced at 0, 25, 50, and 75% with BSF larval meal and fish oil was completely replaced with corn oil in the test diets. Fish (initial body weight of 200?27g, 15 fish per tank, 4 treatments, 3 replicates,) were fed at 3% body weight for 8 weeks. All diets were accepted by fish. Fish fed BSF 50 had the highest final mean body weight, similar to the Control and BSF 25 groups. Fish fed BSF 75 had the lowest mean body weight, significantly different (p<0.05) from the other treatments. There were no significant differences (p>0.05) in the FCR among the dietary treatments. The amino acids and fatty acids composition of fillets of fish fed BSF larval diets compared favourably with fishmeal-based Control diet. Dietary inclusion of BSF larval meal and corn oil had no significant impact (p > 0.05) on deposition or retention of ARA, EPA, DHA and n-3 PUFA in fish fillets. Results of blood biochemical analysis indicate that the test diets are nutritionally adequate. The findings of this study suggest that BSF larval meal may partially replace dietary fishmeal up to 50% (200 gkg-1) and corn oil may completely replace fish oil without exerting negative impacts on growth, feed conversion, fillet quality, physiological stress, and health of hybrid African catfish Heteroclarias
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Social Science Research Network. - Epub ahead of print (2024), p. 1-40. -
További szerzők:Molnár Péter István (1996-) (Állattenyésztő mérnök) Mohammed, Elshafia Ali Hamid (1987-) (agrármérnök) Wa Maina, John Kertész Attila (1988-) (agrármérnök) Fehér Milán (1985-) (agrármérnök) Bársony Péter (1975-) (agrármérnök)
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8.

001-es BibID:BIBFORM125090
Első szerző:Teye-Gaga, Christopher
Cím:Growth performance of hybrid african catfish Heteroclarias cultured on bsf larval-based diets / Christopher Teye-Gaga, Péter István Molnár, Elshafia Ali Hamid Mohammed, Milán Fehér, Péter Bársony
Dátum:2024
Tárgyszavak:Agrártudományok Állattenyésztési tudományok nem besorolt
egyéb
További szerzők:Molnár Péter István (1996-) (Állattenyésztő mérnök) Mohammed, Elshafia Ali Hamid (1987-) (agrármérnök) Fehér Milán (1985-) (agrármérnök) Bársony Péter (1975-) (agrármérnök) AQUA 2024 (2024) (Koppenhága, Dánia)
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