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1.

001-es BibID:BIBFORM118839
035-os BibID:(WoS)001174529200010 (Scopus)85185693265
Első szerző:Lugata, James Kachungwa (Ph.D hallgató)
Cím:In ovo feeding of methionine affects antioxidant status and growth-related gene expression of TETRA SL and Hungarian indigenous chicks / James K. Lugata, Sawadi F. Ndunguru, Gebrehaweria K. Reda, Gabriella Gulyás, Renáta Knop, János Oláh, Levente Czeglédi, Csaba Szabó
Dátum:2024
ISSN:2045-2322
Megjegyzések:Methionine (Met) plays a substantial role in poultry due to its involvement in several pathways, including enhancing antioxidant status and improving growth performance and health status. This study examined how in ovo feeding of Met affects hatching performance, antioxidant status, and hepatic gene expression related to growth and immunity in the TETRA-SL LL hybrid (TSL) commercial layer and Hungarian partridge colored hen (HPC) indigenous genotypes. The eggs were injected with saline, DL-Met, and L-Met on 17.5 days of embryonic development. The results showed that the in ovo feeding of DL-Met significantly increased the hatching weight and ferric reducing the ability of the plasma (FRAP) compared with L-Met. The in ovo feeding of either Met source enhanced the liver health and function and hepatic antioxidant status of the chicks. The genotype`s differences were significant; the TSL genotype had better hatching weight, an antioxidant defense system, and downregulated growth-related gene expression than the HPC genotype. In ovo feeding of either Met source enhanced the chicks' health status and antioxidant status, and DL-Met improved the hatching weight of the chicks more than L-Met. Genotype differences were significantly evident in the responses of growth performance, antioxidant status, blood biochemical parameters, and gene expression to Met sources.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 14 : 1 (2024), p. 1-14. -
További szerzők:Ndunguru, Sawadi Fransisco (1980-) Reda, Gebrehaweria Kidane (1986-) (Animal Sceince) Gulyás Gabriella (1985-) (agrár) Knop Renáta (1983-) (állatorvos) Oláh János (1976-) (állattenyésztés) Czeglédi Levente (1977-) (agrármérnök) Szabó Csaba (1968-) (agrármérnök)
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2.

001-es BibID:BIBFORM118530
035-os BibID:(WoS)001175647600001 (Scopus)85184758825
Első szerző:Lugata, James Kachungwa (Ph.D hallgató)
Cím:Methionine sources and genotype affect embryonic intestinal development, antioxidants, tight junctions, and growth-related gene expression in chickens / James K. Lugata, Sawadi F. Ndunguru, Gebrehaweria K. Reda, Xenia E. Ozsváth, Eszter Angyal, Levente Czegledi, Gabriella Gulyas, Renata Knop, Janos Oláh, Zoltan Mészár, Rita Varga, Brigitta Csernus, Csaba Szabo
Dátum:2024
ISSN:2405-6545
Megjegyzések:Methionine (Met) is an essential and first limiting amino acid in the poultry diet that plays a significant role in chicken embryonic development and growth. The present study examined the effect of in ovo injection of DL-Met and L-Met sources and genotypes on chicken embryonic-intestinal development and health. Fertilized eggs of the two genotypes, TETRA -SL layer hybrid (TSL) d commercial layer hybrid and Hungarian Partridge colored hen breed (HPC) d a native genotype, were randomly distributed into four treatments for each genotype. The treatment groups include the following: 1) control non-injected eggs (NoIn); 2) saline-injected (SaIn); 3) DL-Met injected (DLM); and 4) L-Met injected (LM). The in ovo injection was carried out on 17.5 d of embryonic development; after hatching, eight chicks per group were sacrificed, and the jejunum was extracted for analysis. The results showed that both DLM and LM groups had enhanced intestinal development as evidenced by increased villus width, villus height, and villus area (P < 0.05) compared to the control. The DLM group had significantly reduced crypt depth, glutathione content (GSH), glutathione S-transferase 3 alpha (GST3), occludin (OCLN) gene expression and increased villus height to crypt depth ratio in the TSL genotype than the LM group (P < 0.05). The HPC genotype has overexpressed insulin -like growth factor 1 (IGF1) gene, tricellulin (MD2), occludin (OCLN), superoxide dismutase 1 (SOD1), and GST3 genes than the TSL genotype (P < 0.05). In conclusion, these findings showed that in ovo injection of Met enhanced intestinal development, and function, with genotypes responding differently under normal conditions. Genotypes also influenced the expression of intestinal antioxidants, tight junction, and growth-related genes.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
DL-Methionine
L-Methionine
In ovo injection
Intestinal development
Poultry
Megjelenés:Animal Nutrition. - 16 (2024), p. 218-230. -
További szerzők:Ndunguru, Sawadi Fransisco (1980-) Reda, Gebrehaweria Kidane (1986-) (Animal Sceince) Ozsváth Xénia Erika Angyal Eszter (1994-) (állatorvos doktor) Czeglédi Levente (1977-) (agrármérnök) Gulyás Gabriella (1985-) (agrár) Knop Renáta (1983-) (állatorvos) Oláh János (1976-) (állattenyésztés) Mészár Zoltán Mihály (1977-) (agrármérnök, biotechnológus) Varga Rita Csernus Brigitta (1991-) (élelmiszerbiztonsági és -minőségi mérnök) Szabó Csaba (1968-) (agrármérnök)
Pályázati támogatás:K 139021
Egyéb
Stipendium Hungaricum Scholarship
Egyéb
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3.

001-es BibID:BIBFORM106312
Első szerző:Lugata, James Kachungwa (Ph.D hallgató)
Cím:Effect of genotype on the hematological parameter of TETRA-SL and Hungarian Partridge coloured chickens at young age / James Kachungwa Lugata, Xénia Erika Ozsváth, Sawadi Fransisco Ndunguru, Gebrehaweria Reda Kidane, Renáta Knop, Eszter Angyal, János Oláh, Csaba Szabó
Dátum:2022
ISSN:1587-1282
Megjegyzések:Indigenous chickens are well known for their dual-purpose function and palatable meat. However, the information on their hematology parameters is lacking and hence hampering the poultry industry production of local breeds. The main objective of this study was to examine the hematological parameters of Hungarian Partridge Coloured hen (HPC) and TETRA-SL (TSL) genotype and determine the hematological reference interval values. This trial was part of the larger experiment where a total of 200 chicks (HPC + TSL) were reared. For this trial the blood samples were obtained from brachial wing veins of 8 chicks of each genotype for blood hematological analysis. The results indicated that some of the hematological parameters such as red blood cells-RBC, white blood cells-WBC, hemoglobin-Hb, hematocrit-Ht, platelets-Plt, lymphocytes-LYM, and granulocytes-GRAN were significantly affected by the genotypes (p < 0.05). The genotype did not affect the mean corpuscular volume-MCV, mean corpuscular hemoglobin-MCH, mean corpuscular hemoglobin concentration-MCHC, and GRAN (p > 0.05). The hematological reference interval values were slightly higher in the TSL genotype compared to HPC chicks. It is concluded that genotype has a significant effect on the hematological parameters. The results from this trial will be help and design the baseline reference values for the HPC genotype which will be useful in assessing the health status of these indigenous chickens.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény hazai lapban
folyóiratcikk
Hungarian Partridge coloured hen
Hematology parameter
TETRA-SL
Genotype
Megjelenés:Agrártudományi közlemények = Acta agraria Debreceniensis. - 2022 : 1 (2022), p. 99-104. -
További szerzők:Ozsváth Xénia Erika Ndunguru, Sawadi Fransisco (1980-) Reda, Gebrehaweria Kidane (1986-) (Animal Sceince) Knop Renáta (1983-) (állatorvos) Angyal Eszter (1994-) (állatorvos doktor) Oláh János (1976-) (állattenyésztés) Szabó Csaba (1968-) (agrármérnök)
Pályázati támogatás:EFOP-362-16-2017-00001
EFOP
EFOP-3.6.3-VEKOP-16-2017-00008
EFOP-VEKOP
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4.

001-es BibID:BIBFORM123835
035-os BibID:(WoS)001311042300001 (Scopus)85203628397
Első szerző:Ndunguru, Sawadi Fransisco (1980-)
Cím:Embryonic Leucine Promotes Early Postnatal Growth via mTOR Signalling in Japanese Quails / Sawadi F. Ndunguru, Gebrehaweria K. Reda, Brigitta Csernus, Renáta Knop, James K. Lugata, Csaba Szabó, Ádám Z. Lendvai, Levente Czeglédi
Dátum:2024
ISSN:2076-2615
Megjegyzések:However, the specific mechanisms by which nutrients influence avian growth remain largely unknown. Amino acids can directly interact with the nutrient-sensing pathways, such as the insulin-like growth factor 1 (IGF-1)/mechanistic target of rapamycin (mTOR) pathways, which are known to regulate growth. We examined the effects of embryonic leucine on gene expression and phenotypic growth in Japanese quails by injecting 2.5 mg leucine or saline (control) into Japanese quail eggs on the tenth day of incubation and incubating them under standard conditions. The treatment groups had similar hatching success and size at hatching. However, between 3 and 7 days post-hatching, quails treated with embryonic leucine showed increased growth in body mass and wing, tarsus, head, and intestinal lengths, lasting up to 21 days. The hepatic expression of IGF1, IGF1R, mTOR, and RPS6K1 was upregulated in leucine-treated quails, while the expression of FOXO1 remained unaffected. In conclusion, a subtle increase in embryonic leucine may induce developmental programming effects in Japanese quail by interacting with the IGF-1/mTOR nutrient-sensing pathway to promote growth. This study highlights the role of embryonic amino acids as crucial nutrients for enhancing growth. It provides valuable insight into nutrient intervention strategies during embryonic development to potentially improve poultry growth performance.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
birds
physiology
nutrition
amino acid
mechanistic target of rapamycin
Megjelenés:Animals. - 14 : 17 (2024), p. 1-16. -
További szerzők:Reda, Gebrehaweria Kidane (1986-) (Animal Sceince) Csernus Brigitta (1991-) (élelmiszerbiztonsági és -minőségi mérnök) Knop Renáta (1983-) (állatorvos) Lugata, James Kachungwa (1992-) (Ph.D hallgató) Szabó Csaba (1968-) (agrármérnök) Lendvai Ádám Zoltán (1977-) (biológus) Czeglédi Levente (1977-) (agrármérnök)
Pályázati támogatás:K139021
OTKA
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5.

001-es BibID:BIBFORM131388
035-os BibID:(Scopus)105010883664
Első szerző:Reda, Gebrehaweria Kidane (Animal Sceince)
Cím:Reproductive resilience and trade-offs : egg component allocation under nutritional constraints in Japanese Quails / Gebrehaweria K. Reda, Sawadi F. Ndunguru, Renáta Knop, James K. Lugata, Brigitta Csernus, Gabriella Gulyás, Csaba Szabó, Ádám Z. Lendvai, Levente Czeglédi
Dátum:2025
Megjegyzések:Under natural conditions, organisms regularly experience seasonal or unpredictable fluctuations in their diet that may shape the quantity and quality of their reproduction. While these dietary shifts are known to influence overall reproductive output, their specific effects on the proportional composition of egg components remain unexplored. To partially simulate the natural conditions, we conducted two trials using adult Japanese Quails (Coturnix japonica) to examine how dietary restriction and unpredictable feeding influence the proportional composition of egg components. In the first trial, quails were assigned to one of four treatments: full-fed (control) or restricted feeding at 20% (DR20), 30% (DR30), and 40% (DR40) below daily intake. In the second trial, quails were assigned to one of three treatments: full feeding (control), constant 40% restriction (DR40), or unpredictable feeding schedule (UNPR). Each trial lasted for 14 days, and birds were housed individually. Severe dietary restrictions (DR30, DR40) reduced albumen and shell mass, shell thickness, and egg volume. However, yolk mass, yolk color, egg shape index, and shell density remained unaffected across all dietary levels. Severe restrictions also increased the yolk ratio while reducing the albumen ratio, suggesting that birds may evolutionarily prioritize yolk deposition to sustain reproductive functions. However, reduced albumen content due to maternal nutritional stress may also limit essential nutrients, and disrupt the embryo's osmoregulation, which ultimately affects offspring quality. Reduced shell contents at the severe restriction levels can affect the egg's ability to provide physical protection, regulate gas exchange and control water loss, thereby influencing embryonic development. In contrast, moderate restriction (DR20) and unpredictable feeding (UNPR) had no effect on any of the egg traits. These findings suggest that quails strategically allocate resources among egg components under dietary constraints, indicating potential trade-offs in reproductive investment. The resilience observed under moderate restriction and unpredictability underscores the species' adaptive capacity in fluctuating environments.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Dietary restriction
Egg components
Japanese Quail
Resource allocation
Unpredictable feeding
Megjelenés:Avian Research. - 16 : 3 (2025), p. 1-12. -
További szerzők:Ndunguru, Sawadi Fransisco (1980-) Knop Renáta (1983-) (állatorvos) Lugata, James Kachungwa (1992-) (Ph.D hallgató) Csernus Brigitta (1991-) (élelmiszerbiztonsági és -minőségi mérnök) Gulyás Gabriella (1985-) (agrár) Szabó Csaba (1968-) (agrármérnök) Lendvai Ádám Zoltán (1977-) (biológus) Czeglédi Levente (1977-) (agrármérnök)
Pályázati támogatás:K139021
OTKA
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Intézményi repozitóriumban (DEA) tárolt változat
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6.

001-es BibID:BIBFORM122386
035-os BibID:(WoS)001239529900108 (Scopus)85195180757
Első szerző:Reda, Gebrehaweria Kidane (Animal Sceince)
Cím:Author Correction : Dietary restriction reveals sex-specific expression of the mTOR pathway genes in Japanese quails / Gebrehaweria K. Reda, Sawadi F. Ndunguru, Brigitta Csernus, Renáta Knop , James K. Lugata , Csaba Szabó, Levente Czeglédi, Ádám Z. Lendvai
Dátum:2024
ISSN:2045-2322
Megjegyzések:Correction to: Scientific Reports https://doi.org/10.1038/s41598-024-58487-9, published online 09 April 2024 The original version of this Article contained an error in the Data Availability section where, "All data generated or analysed during this study are included in this published article [and its Supplementary Information files]. Upon acceptance of the manuscript, the datasets will be uploaded into a public repository." now reads: "All data analysed during this study are included in this published article on its Supplementary Information files.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok hozzászólás
folyóiratcikk
mammalian target of rapamycin
Megjelenés:Scientific Reports. - 14 : 1 (2024), p. 1. -
További szerzők:Ndunguru, Sawadi Fransisco (1980-) (Author Correction) Csernus Brigitta (1991-) (élelmiszerbiztonsági és -minőségi mérnök) Knop Renáta (1983-) (állatorvos) Lugata, James Kachungwa (1992-) (Ph.D hallgató) Szabó Csaba (1968-) (agrármérnök) Czeglédi Levente (1977-) (agrármérnök) Lendvai Ádám Zoltán (1977-) (biológus)
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7.

001-es BibID:BIBFORM126248
Első szerző:Reda, Gebrehaweria Kidane (Animal Sceince)
Cím:The effect of different dietary manipulations on haematological properties in Japanese quail / Gebrehaweria K. Reda, Sawadi F. Ndunguru, Brigitta Csernus, James K. Lugata, Renáta Knop, Csaba Szabó, Levente Czeglédi
Dátum:2024
ISSN:2416-1640
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény hazai lapban
folyóiratcikk
Megjelenés:Acta Agraria Debreceniensis. - 2 (2024), p. 35-41. -
További szerzők:Ndunguru, Sawadi Fransisco (1980-) Csernus Brigitta (1991-) (élelmiszerbiztonsági és -minőségi mérnök) Lugata, James Kachungwa (1992-) (Ph.D hallgató) Knop Renáta (1983-) (állatorvos) Szabó Csaba (1968-) (agrármérnök) Czeglédi Levente (1977-) (agrármérnök)
Pályázati támogatás:K139021
Egyéb
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Intézményi repozitóriumban (DEA) tárolt változat
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8.

001-es BibID:BIBFORM121718
Első szerző:Reda, Gebrehaweria Kidane (Animal Sceince)
Cím:Individual cage housing affects feed intake and induces sex-specific effects on body weight in Japanese quails / Gebrehaweria K. Reda, Sawadi F. Ndunguru, Brigitta Csernus, James K. Lugata, Renáta Knop, Csaba Szabó, Levente Czeglédi
Dátum:2024
ISSN:2416-1640
Megjegyzések:Individual cage housing in poultry production could be a potentially stressful environment for the birds that can alter feed intake, consequently induce negative effects on performance. Previous studies used individual bird-based experiments to extract the detailed molecular, physiological, and fitness outcomes of treatments. Understanding sex-specific effects of isolation on social birds such as Japanese quails (Coturnix japonica) may reveal important considerations. To understand this phenomenon, birds were kept in groups of 10 for one week and they were kept in individual cages for another week. Daily feed intake (DFI) was measured each day and body weight was measured at the beginning, middle, and end of group rearing and at the beginning and end of individual rearing. It was found that both males and females showed a reduction DFI in response to individual rearing (p<0.0001). Females consumed on average 29.38% higher amount of feed than males. Additionally, females showed a pronounced reduction in body weight after isolation, while the effect on males was not significant. Similarly, females hadon average 17.61% higher body weight than males. The body weight to DFI ratio was higher in males than females. The finding of this research revealed an important implication of isolation and sex differences.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény hazai lapban
folyóiratcikk
daily feed intake
group rearing
individual rearing
sex difference
Coturnix japonica
Megjelenés:Acta Agraria Debreceniensis. - 2024 : 1 (2024), p. 137-142. -
További szerzők:Ndunguru, Sawadi Fransisco (1980-) Csernus Brigitta (1991-) (élelmiszerbiztonsági és -minőségi mérnök) Lugata, James Kachungwa (1992-) (Ph.D hallgató) Knop Renáta (1983-) (állatorvos) Szabó Csaba (1968-) (agrármérnök) Czeglédi Levente (1977-) (agrármérnök)
Pályázati támogatás:K139021
OTKA
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Intézményi repozitóriumban (DEA) tárolt változat
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9.

001-es BibID:BIBFORM121717
035-os BibID:(Scopus)85193923533 (WoS)001229921200001
Első szerző:Reda, Gebrehaweria Kidane (Animal Sceince)
Cím:Sex-specific effects of dietary restriction on physiological variables in Japanese quails / Gebrehaweria K. Reda, Sawadi F. Ndunguru, Brigitta Csernus, James K. Lugata, Renáta Knop, Csaba Szabó, Levente Czeglédi, Ádám Z. Lendvai
Dátum:2024
ISSN:2045-7758
Megjegyzések:Nutritional limitation is a common phenomenon in nature that leads to trade-offsamong processes competing for limited resources. These trade-offs are mediatedby changes in physiological traits such as growth factors and circulating lipids.However, studies addressing the sex-specific effect of nutritional deficiency onthese physiological variables are limited in birds. We used dietary restriction tomimic the depletion of resources to various degrees and investigated sex-specificeffects on circulating levels of insulin-like growth factor 1 (IGF-1) and triglyceridesin Japanese quails (Coturnix japonica) subjected to ad libitum, 20%, 30% or 40%restriction of their daily requirement, for 2 weeks. We also explored the associa-tion of both physiological variables with body mass and egg production. While di-etary restriction showed no effects on circulating IGF-1, this hormone exhibiteda marked sexual difference, with females having 64.7% higher IGF-1 levels thanmales. Dietary restriction significantly reduced plasma triglyceride levels in bothsexes. Females showed more than six-fold higher triglyceride levels than males.Triglyceride levels were positively associated with body mass in females whileshowed not association in males. Overall, our findings revealed sex-specific expres-sion of physiological variables under dietary restriction conditions, which coincidewith body size
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
body mass
Coturnix japonica
IGF-1
nutritional limitation
sex difference
triglycerides
Megjelenés:Ecology and Evolution. - 14 : 5 (2024), p. 1-28. -
További szerzők:Ndunguru, Sawadi Fransisco (1980-) Csernus Brigitta (1991-) (élelmiszerbiztonsági és -minőségi mérnök) Lugata, James Kachungwa (1992-) (Ph.D hallgató) Knop Renáta (1983-) (állatorvos) Szabó Csaba (1968-) (agrármérnök) Czeglédi Levente (1977-) (agrármérnök) Lendvai Ádám Zoltán (1977-) (biológus)
Pályázati támogatás:K139021
OTKA
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Intézményi repozitóriumban (DEA) tárolt változat
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10.

001-es BibID:BIBFORM120370
035-os BibID:(WoS)001199822700036 (Scopus)85189879690
Első szerző:Reda, Gebrehaweria Kidane (Animal Sceince)
Cím:Dietary restriction reveals sex-specifc expression of the mTOR pathway genes in Japanese quails / Gebrehaweria K. Reda, Sawadi F. Ndunguru, Brigitta Csernus, Renáta Knop, James K. Lugata, Csaba Szabó, Levente Czeglédi, Ádám Z. Lendvai
Dátum:2024
ISSN:2045-2322
Megjegyzések:Limited resources affect an organism's physiology through the conserved metabolic pathway, the mechanistic target of rapamycin (mTOR). Males and females often react differently to nutritional limitation, but whether it leads to differential mTOR pathway expression remains unknown. Recently, we found that dietary restriction (DR) induced significant changes in the expression of mTOR pathway genes in female Japanese quails (Coturnix japonica). We simultaneously exposed 32 male and female Japanese quails to either 20%, 30%, 40% restriction or ad libitum feeding for 14 days and determined the expression of six key genes of the mTOR pathway in the liver to investigate sex differences in the expression patterns. We found that DR significantly reduced body mass, albeit the effect was milder in males compared to females. We observed sex-specific liver gene expression. DR downregulated mTOR expression more in females than in males. Under moderate DR, ATG9A and RPS6K1 expressions were increased more in males than in females. Like females, body mass in males was correlated positively with mTOR and IGF1, but negatively with ATG9A and RS6K1 expressions. Our findings highlight that sexes may cope with nutritional deficits differently and emphasise the importance of considering sexual differences in studies of dietary restriction.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 14 : 1 (2024), p. 1-14. -
További szerzők:Ndunguru, Sawadi Fransisco (1980-) Csernus Brigitta (1991-) (élelmiszerbiztonsági és -minőségi mérnök) Knop Renáta (1983-) (állatorvos) Lugata, James Kachungwa (1992-) (Ph.D hallgató) Szabó Csaba (1968-) (agrármérnök) Czeglédi Levente (1977-) (agrármérnök) Lendvai Ádám Zoltán (1977-) (biológus)
Pályázati támogatás:K139021
OTKA
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Intézményi repozitóriumban (DEA) tárolt változat
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