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1.

001-es BibID:BIBFORM126244
035-os BibID:(Scopus)85212213248
Első szerző:Astuti, Putri Kusuma (állattenyésztési genetikus)
Cím:A systematic review on the trend of transcriptomic study in livestock : an effort to unwind the complexity of adaptation in a climate change environment / Putri Kusuma Astuti, Péter Sárkány, George Wanjala, Zoltán Bagi, Szilvia Kusza
Dátum:2025
ISSN:2405-8440
Megjegyzések:Heat stress has been proven to cause negative effects on livestock leading to lower productivity and economic value. Understanding how heat stress manifests within an animal's body is the first step in devising a heat stress mitigation strategy; transcriptomic studies are one of the methods used. Here, using a systematic literature review methodology, we examine the recent decade of transcriptomics' application to the study of livestock adaptation. We identified 152 studies that met our criteria for using transcriptome methods to heat stress adaptation and were published within the last ten years. Our analysis demonstrates the growing popularity and application of transcriptome approaches in the investigation of the response of ruminants, pigs, and poultry livestock to heat stress. Majority of the works was done in chicken and cattle using multiple organs as the sample, with qRT-PCR as the most employed technique. It has been established that a variety of biomarkers can be used to assess animals under heat stress, such as the HSPs, ILs, and TLRs. Although transcriptomics has lately been employed extensively to uncover the mechanism of heat adaptation, this adaptive feature's complex mechanism remains unclear, leaving many knowledge gaps for investigation. A more complex studies involving more various cell types, organs, or even model organisms using multi-omics approach could be the future research direction in understanding the heat stress effects on livestock better.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
adaptation
climate change
heat stress
gene expression
livestock
transcriptomics
Megjelenés:Heliyon. - 11 : 1 (2025), p. 1-15. -
További szerzők:Sárkány Péter Wanjala, George (1984-) (Animal scientist) Bagi Zoltán (1987-) (természetvédelmi mérnök, állatgenetika) Kusza Szilvia (1979-) (agrármérnök)
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2.

001-es BibID:BIBFORM113832
Első szerző:Astuti, Putri Kusuma (állattenyésztési genetikus)
Cím:Heat Stress: Can Animals be Stressed but still be Healthy? / Putri Kusuma Astuti, Roland Fajardo, George Wanjala, Nelly Kichamu, Husein Ohran, Bouabid Badaoui, Zoltán Bagi, Szilvia Kusza
Dátum:2023
ISSN:1841-9364 2344-4576
Megjegyzések:In this era of rapid climate change, heat stress has emerged as a major problem for sheep farming. The quantity and quality of sheep production, as well as the welfare, are all shown to be negatively impacted by heat stress. Reduced cellular immune function in sheep exposed to high temperatures increases susceptibility to various diseases,although the underlying mechanisms are unclear. The imbalance between oxidants and antioxidants, known as oxidative stress, negatively impacts animal health due to heat stress-induced impairments in immune responses, increased production of reactive oxygen species, and/or a lack of antioxidants. Heat stress in livestock has negative effects on both the cell-mediated and humoral immune responses. However, the negative effects of heat stress on immune response in sheep can vary by breed. This review discusses how heat stress affects sheep's immunity. An overview of some molecular markers related to immunity, such as interleukin (ILs), Toll-like receptors (TLRs), and also the heat stress protein (HSPs) in sheep, is also discussed. Finally, recent researchon the effects of antioxidant supplementation and other promising nutritional strategies for reducing heat stress and improving animal health is presented.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok konferenciacikk
folyóiratcikk
animal health
antioxidant
heat stress
immunity
sheep
Megjelenés:Scientific Papers: Animal Science and Biotechnologies. - 56 : 1 (2023), p. 194-202. -
További szerzők:Fajardo, Roland Wanjala, George (1984-) (Animal scientist) Kichamu, Nelly (1978-) (Animal scientist) Ohran, Husein Badaoui, Bouabid (1979-) (animal genetics engineer) Bagi Zoltán (1987-) (természetvédelmi mérnök, állatgenetika) Kusza Szilvia (1979-) (agrármérnök)
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3.

001-es BibID:BIBFORM112083
Első szerző:Astuti, Putri Kusuma (állattenyésztési genetikus)
Cím:Heat stress: Can animals be stressed but still be healthy? / Putri Kusuma Astuti, Roland Fajardo, George Wanjala, Husein Ohran, Bouabid Badaoui, Zoltán Bagi, Szilvia Kusza
Dátum:2023
ISSN:2821-4293
Megjegyzések:In this era of rapid climate change, heat stress has emerged as a major problem for sheep farming. The quantity and quality of sheep production, as well as the welfare, are all shown to be negatively impacted by heat stress. Reduced cellular immune function in sheep exposed to high temperatures increases susceptibility to various diseases, although the underlying mechanisms are unclear. The imbalance between oxidants and antioxidants, known as oxidative stress, negatively impacts animal health due to heat stress-induced impairments in immune responses, increased production of reactive oxygen species, and/or a lack of antioxidants. Heat stress in livestock has negative effects on both the cell-mediated and humoral immune responses. However, the negative effects of heat stress on immune response in sheep can vary by breed. This review discusses how heat stress affects sheep's immunity. An overview of some molecular markers related to immunity, such as interleukin (ILs), Toll-like receptors (TLRs), and also the heat stress protein (HSPs) in sheep, is also discussed. Finally, recent research on the effects of antioxidant supplementation and other promising nutritional strategies for reducing heat stress and improving animal health is presented.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok előadáskivonat
könyvrészlet
animal health
antioxidant
heat stress
immunity
sheep
Megjelenés:Book of abstract : Multidisciplinary Conference on Sustainable Development : 25-26 May 2023 : Section : Animal Resources Bioengineering. - p. 17. -
További szerzők:Fajardo, Roland Wanjala, George (1984-) (Animal scientist) Ohran, Husein Badaoui, Bouabid (1979-) (animal genetics engineer) Bagi Zoltán (1987-) (természetvédelmi mérnök, állatgenetika) Kusza Szilvia (1979-) (agrármérnök)
Pályázati támogatás:2021-1.2.4-TÉT-2021-00047
Egyéb
2021-1.2.4-TÉT-2021-00014
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4.

001-es BibID:BIBFORM111442
035-os BibID:(Scopus)85158924988 (WoS)000983708900001
Első szerző:Astuti, Putri Kusuma (állattenyésztési genetikus)
Cím:Genetic polymorphism in European and African sheep breeds reared in Hungary based on 48 SNPs associated with resistance to gastrointestinal parasite infection using KASP-PCR technique / Putri Kusuma Astuti; Dinu Gavojdian; Daniela Elena Ilie; George Wanjala; István Monori; Zoltán Bagi; Szilvia Kusza
Dátum:2023
ISSN:0049-4747 1573-7438
Megjegyzések:This pilot study used an alternative and economically efcient technique, the Kompetitive Allele-Specifc Polymerase Chain Reaction (KASP-PCR) to examine 48 SNPs from 11 parasite-resistance genes found on 8 chromosomes in 110 animals from fve sheep breeds reared in Hungary; Hungarian Tsigai, White Dorper, Dorper, Ile de France, and Hungarian Merino. Allele and genotype frequencies, fxation index, observed heterozygosity, expected heterozygosity, F statistic, and their relationship with the Hardy-Weinberg equilibrium (WHE) and the polymorphic information content (PIC) were determined, followed by principal component analysis (PCA). As much as 32 SNPs out of the 48 initially studied were successfully genotyped. A total of 9 SNPs, 4 SNPs in TLR5, 1 SNP in TLR8, and 4 SNPs in TLR2 genes, were polymorphic. The variable genotype and allele frequency of the TLRs gene indicated genetic variability among the studied sheep breeds, with the Hungarian Merino exhibiting the most polymorphisms, while Dorper was the population with the most SNPs departing from the HWE. According to the PIC value, the rs430457884-TLR2, rs55631273-TLR2, and rs416833129-TLR5 were found to be informative in detecting polymorphisms among individuals within the populations, whereas the rs429546187-TLR5 and rs424975389- TLR5 were found to have a signifcant infuence in clustering the population studied. This study reported a moderate level of genetic variability and that a low to moderate within-breed diversity was maintained in the studied populations.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
KASP PCR
Ovis aries
Parasite resistance genes
Polymorphism
TLRs
Megjelenés:Tropical Animal Health and Production. - 55 : 3 (2023), p. 1-12. -
További szerzők:Gavojdian, Dinu Ilie, Daniela Elena Wanjala, George (1984-) (Animal scientist) Monori István (1976-) (agrármérnök) Bagi Zoltán (1987-) (természetvédelmi mérnök, állatgenetika) Kusza Szilvia (1979-) (agrármérnök)
Pályázati támogatás:EFOP-3.6.2-16-2017-00001
EFOP
VP3-16.1.1-4.1.5- 4.2.1-4.2.2-8.1.1-8.2.1-8.3.1-8.5.1-8.5.2-8.6.1-17
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5.

001-es BibID:BIBFORM107013
Első szerző:Astuti, Putri Kusuma (állattenyésztési genetikus)
Cím:Coping with climate change; is white sheep more favorable than black? = Szembenézni az éghajlatváltozással; kedvezőbb a fehér bárány a feketénél? : a review = irodalmi áttekintés / Putri Kusuma Astuti, George Wanjala, Zoltán Bagi, Szilvia Kusza
Dátum:2022
ISSN:0230-1814
Megjegyzések:Climate change and its impact on livestock production are a point of discussion nowadays. The impact of climate change, heat stress mainly, is negatively correlated to livestock production. In sheep, heat stress causes disruptions in the biological and physiological activities inside the body, resulting in hormonal imbalance, lower body growth and production, and reproduction impairment. Furthermore, the stress caused by the thermal condition does not promote animal welfare in the sheep population. Genetic factors determine coat color, and numerous genes have been identified as associated with it, including TRYP, MC1R, MLANA, OCA2, and others. Numerous studies indicate that light coat colors promote adaptation to hot environments owing to their ability to reflect sunlight more effectively than dark coat colors. Regardless, other research found no difference in adaption to a hot environment between light and dark coat colors. In the present work, authors summarized the effect of light and dark coat colors. Az éghajlatváltozás és annak az állattenyésztésre gyakorolt hatása manapság vita tárgyát képezi. A klímaváltozás hatása, elsősorban a hőstressz negatívan hat az állattenyésztésre. A juhokban a hőstressz megzavarja a szervezeten belüli biológiai és élettani tevékenységeket, ami hormonális egyensúlyhiányt, kisebb testnövekedést és termelést, valamint szaporodási zavarokat okoz. Továbbá a termikus állapot okozta stressz hátrányosan hat az állatjólétre is. Genetikai tényezők határozzák meg a gyapjú színét, és számos gént azonosítottak, amelyek kapcsolatba hozhatóak annak kialakulásával, köztük a TRYP, MC1R, MLANA, OCA2 stb. A gyapjúszín kialakulása a bőr epidermiszében található melanociták által termelt kétféle pigmenttől függ. Számos tanulmány kimutatta, hogy a világos szőrszínek elősegítik a meleg környezethez való alkalmazkodást, mivel hatékonyabban verik vissza a napfényt, mint a sötét színek. Ettől függetlenül más kutatások nem találtak különbséget a forró környezethez való alkalmazkodásban a világos és a sötét szőrzet színei között. Sajnos jelenleg nem ismert, hogy a sötét és világos gyapjú miben tér el hőszabályozási mechanizmusaiban a hőstressz hatására. A szerzők jelen tanulmányukban összegezni kívánták a világos és sötét gyapjú hatását.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény hazai lapban
folyóiratcikk
Megjelenés:Állattenyésztés és takarmányozás. - 71 : 4 (2022), p. 270-282. -
További szerzők:Wanjala, George (1984-) (Animal scientist) Bagi Zoltán (1987-) (természetvédelmi mérnök, állatgenetika) Kusza Szilvia (1979-) (agrármérnök)
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6.

001-es BibID:BIBFORM106134
035-os BibID:(WOS)000904416000001 (Scopus)85144635665
Első szerző:Astuti, Putri Kusuma (állattenyésztési genetikus)
Cím:Validation of SNP markers for thermotolerance adaptation in Ovis aries adapted to different climatic regions using KASP-PCR technique / Putri Kusuma Astuti, Daniela Elena Ilie, Dinu Gavojdian, George Wanjala, Bouabid Badaoui, Husein Ohran, Eva Pasic-Juhas, Zoltán Bagi, András Jávor, Szilvia Kusza
Dátum:2022
ISSN:2045-2322
Megjegyzések:A study on 51 SNPs belonging to 29 genes related to heat stress was carried out in 720 sheep from 17 different breeds adapted to different climates from Hungary, Bosnia and Herzegovina, Morocco and Romania, using Kompetitive Allele?Specific Polymerase Chain Reaction. Genotype frequency and the Hardy?Weinberg equilibrium were calculated, followed by a clustering using the Principal Component Analysis. We analyzed the polymorphisms in the following genes analyzed: HSPA12A, HSP90AA1, IL33, DIO2, BTNL2, CSN2, ABCG1, CSN1S1, GHR, HSPA8, STAT3, and HCRT. We emphasized on HSPA12A and HSPA8 genes as they were successfully genotyped in all studied flocks in which genotype frequency patterns were identified. Contrary to previous findings, the A allele for HSPA8 SNP was not observed in the heat tolerant breeds, being found exclusively in cold-tolerant breeds. The principal component analysis could not clearly differentiate the breeds, while plot concentration was slightly varied among the three groups, with HSP90AA1 and IL33 SNPs' loading values significantly contributing to PC1 and PC2. We confirmed previous works that the HSPA12A, HSPA8, HSP90AA1 and IL33 SNPs are potential candidate markers for thermotolerance adaptation in sheep. This research contributes to the genetic variability of SNPs for thermotolerance adaptability in sheep.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 12 (2022), p. 1-9. -
További szerzők:Ilie, Daniela Elena Gavojdian, Dinu Wanjala, George (1984-) (Animal scientist) Badaoui, Bouabid (1979-) (animal genetics engineer) Ohran, Husein Pasic-Juhas, Eva Bagi Zoltán (1987-) (természetvédelmi mérnök, állatgenetika) Jávor András (1952-) (agrármérnök) Kusza Szilvia (1979-) (agrármérnök)
Pályázati támogatás:EFOP-3.6.2-16-2017-00001
EFOP
2021-1.2.4-TÉT-2021-00014
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7.

001-es BibID:BIBFORM124191
035-os BibID:(Scopus)85204500972
Első szerző:Balog Katalin (állatgenetika)
Cím:MtDNA genetic diversity and phylogeographic insights into giant domestic pigeon (Columba livia domestica) breeds : connections between Central Europe and the Middle East / K. Balog, A. S. Wadday, B. A. Al-Hasan, G. Wanjala, Sz. Kusza, P. Fehér, V. Stéger, Z. Bagi
Dátum:2024
ISSN:0032-5791
Megjegyzések:Humans have selectively bred domestic pigeons (Columba livia domestica) to create breeds with a diversity of shapes, colors and other attributes. Since Darwin, the domestic pigeon has always been a popular model species for scientific research because of its richness of form, colouration and behaviour. It is believed that the world's squab pigeon industry uses breeds and hybrids from the Mediterranean region. An exception is the indigenous giant pigeon breeds of the Carpathian Basin, whose origin is not known. Therefore, our aims were 1) to understand the phylogenetic relationships of giant pigeons, which sheds light on the origin of Hungarian breeds and their relationship to the Mediterranean giant pigeon breed group; 2) to contribute molecular genetic data to the genealogy of 2 Iraqi pigeon breeds close to the pigeon domestication center, including the culturally important Iraqi Red Pigeon, and 3) to compare the genetic diversity of European and Middle Eastern domestic pigeon populations and to draw conclusions on the phylogenetic relationships between pigeon breeds and molecular clues to their different breeding practices of both regions. A 655-bp-long sequence of the cytochrome oxidase 1 (COI) region of the mitochondrial DNA was studied in a total of 276 pigeons (19 breeds). A total of 27 haplotypes were found, of which 22 were unique. The highest genetic diversity was found in the Carpathian Basin, and the lowest in the Iraqi region. STRUCTURE analysis revealed low structurality, K=3 was the most likely. The majority of the samples belong to the most ancient haplotype H_2=219, however the Jacobin pigeon is on a very separate evolutionary branch with a large number of mutations. None of the 19 breeds investigated in this study have been previously studied in phylogenetics, and most of these breeds have potential as squab pigeons, and have good meat forms for utilization, therefore the results of this study may also be of help to the squab pigeon industry.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
filogenetika
házi galamb
húsgalamb
mitokondriális DNS
Megjelenés:Poultry Science. - 103 : 12 (2024), p. 1-14. -
További szerzők:Al-Sallami, Ali Salah Wadday Al-Hasan, Baraa Akaal Wanjala, George (1984-) (Animal scientist) Kusza Szilvia (1979-) (agrármérnök) Fehér Péter Stéger Viktor Bagi Zoltán (1987-) (természetvédelmi mérnök, állatgenetika)
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8.

001-es BibID:BIBFORM108913
035-os BibID:(WoS)000948491300001 (Scopus)85148660475
Első szerző:Balog Katalin (állatgenetika)
Cím:Application potential of chicken DNA chip in domestic pigeon species - preliminary results / Katalin Balog, Alexandru Eugeniu Mizeranschi, George Wanjala, Bíborka Sipos, Szilvia Kusza, Zoltán Bagi
Dátum:2023
ISSN:1319-562X 2213-7106
Megjegyzések:Introducing the SNP technology to pigeon breeding will enhance the competitiveness of a sector that produces one of the healthiest and best quality meats. The present study aimed to test the applicability of the Illumina Chicken_50K_CobbCons array on 24 domestic pigeon individuals from the Mirthys hybrids and Racing pigeon breeds. A total of 53,313 SNPs were genotyped. Principal component analysis shows a significant overlap between the two groups. The chip performed poorly in this data set, with a call rate per sample of 0.474 (49%). The low call rate was likely due to an increase in the evolutionary distance. A total of 356 SNPs were retained after a relatively strict quality control. We have demonstrated that it is technically feasible to use a chicken microarray chip on pigeon samples. Presumably, with a larger sample size and by assigning phenotypic data, efficiency would be improved, allowing more thorough analyses, such as genome-wide association studies.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
DNA chip
SNP-array
Squab pigeon
Racing pigeon
Illumina
Genotyping
Megjelenés:Saudi Journal of Biological Sciences. - 30 : 3 (2023), p. 1-9. -
További szerzők:Mizeranschi, Alexandru Eugeniu Wanjala, George (1984-) (Animal scientist) Sipos Bíborka (1996-) (állattenyésztő mérnök) Kusza Szilvia (1979-) (agrármérnök) Bagi Zoltán (1987-) (természetvédelmi mérnök, állatgenetika)
Pályázati támogatás:ÚNKP-21-4
Egyéb
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9.

001-es BibID:BIBFORM117398
035-os BibID:(Scopus)85181554728
Első szerző:Fajardo, Roland
Cím:Continental vs. tropical breed : Immunity comparison under heat stress conditions utilizing qRT-PCR technique / Roland Fajardo, Putri Kusuma Astuti, Zoltán Bagi, Lilla Bodrogi, Tímea Pintér, Gabriella Skoda, Husein Ohran, George Wanjala, Szilvia Kusza
Dátum:2023
ISSN:2273-1709 2117-4458
Megjegyzések:Understanding the responses of animals to seasonal heat stress on the genomic level has led to the identification of genes implicated in thermal stress reaction mechanisms. In this study, the relative gene expression of Interleukin-10 (IL-10), an anti-inflammatory cytokine and biomarker for heat stress-mediated immune modulation, was observed during the summer and winter seasons in continental and tropical sheep breeds, namely, Hungarian Indigenous Tsigai and White Dorper, employing quantitative real-time polymerase chain reaction (qRT-PCR). Temperature-humidity indices (THI) were calculated to assess heat stress levels. The results indicate that IL-10 CT-values were significantly higher during the summer, when heat stress prevails, in both sheep breeds compared to winter. While the White Dorper exhibited a higher numerical value for the summer relative gene expression ratio (16.2) compared to the Hungarian Indigenous Tsigai (12.3), no significant differences in CT values were observed between breeds or among sexes. These findings suggest the immune-adaptive characteristics of the two sheep breeds during seasonal heat stress. The variation of IL-10 gene expression levels between the two breeds can be attributed to their geographical origins; the White Dorper emerging from arid subtropical South Africa and the Hungarian Indigenous Tsigai Sheep thriving in the seasonally harsh Carpathian climate for centuries.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok konferenciacikk
folyóiratcikk
gene expression
heat stress
Hungarian Tsigai
IL-10
White Dorper
Megjelenés:BIO Web of Conferences. - 8 (2023), p. 1-8. -
További szerzők:Astuti, Putri Kusuma (1994-) (állattenyésztési genetikus) Bagi Zoltán (1987-) (természetvédelmi mérnök, állatgenetika) Bodrogi Lilla Pintér Tímea Skoda Gabriella Ohran, Husein Wanjala, George (1984-) (Animal scientist) Kusza Szilvia (1979-) (agrármérnök)
Pályázati támogatás:2021-1.2.4-TÉT-2021-00047
Egyéb
EFOP-3.6.2-16-2017-00001
EFOP
Internet cím:DOI
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10.

001-es BibID:BIBFORM130412
Első szerző:Kichamu, Nelly (Animal scientist)
Cím:Genome-wide analysis provides insight into the genetic diversity and adaptability of Kazakhstan local goats / Nelly Kichamu, GeorgeWanjala, Kairat Dossybayev, Zoltán Bagi, Bakhytzhan Bekmanov, Szilvia Kusza
Dátum:2025
ISSN:2045-2322
Megjegyzések:o understand the genetic structure of local goat populations in Kazakhstan, we present the first comprehensive genomic analysis using a 70 K SNP array, examining 120 samples from six regions. The populations (Kundyzdy, Darbaza, Shokpar, Ushterek, Kenes and Kosseit) are named based on their breeding regions and are referred to ecotypes. Our results present a high genetic diversity, with observed heterozygosity (Ho) ranging from 0.389 to 0.444. Shokpar and Kundyzdy showed excess heterozygosity, while Kosseit and Darbaza had high inbreeding levels. Most populations recorded weak genetic differentiation, except for Ushterek goats, which were more distinct. For adaptability, Runs of Homozygosity (ROH) and Integrated Haplotype Score (iHS) identified 71 genes under selection, with gene ontology enrichment indicating localization as the most represented biological pathway important for cell response. Additionally, over 60% of these genes are co-expressed, suggesting their significant role in survival of these goats in their local environments. Some identified genes, such as NLRC4, HCLS1, IL17D, IL17RE, and IL17RC, were linked to immune response, an important adaptation trait in the context of climate change. This study not only emphasizes on high genetic variability of local goats in Kazakhstan but also lays the groundwork for developing conservation and breeding programs for local goats in Kazakhstan and other similar agroecological regions for adaptability and resilience under changing environmental conditions.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 15 : 1 (2025), p. 1-15. -
További szerzők:Wanjala, George (1984-) (Animal scientist) Dossybayev, Kairat Bagi Zoltán (1987-) (természetvédelmi mérnök, állatgenetika) Bekmanov, Bakhytzhan Kusza Szilvia (1979-) (agrármérnök)
Pályázati támogatás:DETKA
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11.

001-es BibID:BIBFORM122766
035-os BibID:(Scopus)85198652941
Első szerző:Kichamu, Nelly (Animal scientist)
Cím:Assessing the population structure and genetic variability of Kenyan native goats under extensive production system / Nelly Kichamu, George Wanjala, Ludovic Toma Cziszter, Péter Strausz, Putri Kusuma Astuti, Zoltán Bagi, Szilvia Kusza
Dátum:2024
ISSN:2045-2322
Megjegyzések:Indigenous goats are important to many livelihoods. Despite this, they are subjected to indiscriminate crossbreeding. This afects their genetic variability which is needed to survive in current regime of climate change. The study assessed population structure and genetic diversity of Galla and Small East African goats (SEA) using pedigree information. A total of 7384 animals, 5222 of the Galla and 2162 of the SEA breeds, born between the years 1983 and 2022, were utilized. Individuals with known parents were defned as reference population. From the results, the maximum generation traced for Galla and SEA populations was 14.6 and 14.5, respectively. However, only 6 and 5 generations for Galla and SEA were complete. Pedigree completeness increased with the increasing number of generations. The average generation interval (GI) for Galla and SEA was 3.84 ± 0.04 and 4.4 ± 0.13 years. The average increase in the rate of inbreeding per generation for Galla and SEA was 0.04 and 0.05, with the efective ancestors and founders (fa/fe) ratio being same (1.00) for both breeds. Fifty percent (50%) of the genetic variability in the populations was contributed by 3 and 1 ancestor for Galla SEA, respectively. The efective population size (Ne) was 5.19 and 4.77 for Galla and SEA. Therefore, the current breeding programs should be changed to avoid future genetic bottlenecks in this population. These fndings ofer an opportunity to enhance the current genetic status and management of Kenyan native goats and other regions with similar production systems.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 14 : 1(2024), p. 1-11. -
További szerzők:Wanjala, George (1984-) (Animal scientist) Cziszter, Ludovic Toma Strausz Péter Astuti, Putri Kusuma (1994-) (állattenyésztési genetikus) Bagi Zoltán (1987-) (természetvédelmi mérnök, állatgenetika) Kusza Szilvia (1979-) (agrármérnök)
Internet cím:DOI
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12.

001-es BibID:BIBFORM121782
035-os BibID:(WoS)001254501200001 (Scopus)85197851601
Első szerző:Kichamu, Nelly (Animal scientist)
Cím:A Review on Indigenous Goats of East Africa : A Case for Conservation and Management / Nelly Kichamu, Putri Kusuma Astuti, George Wanjala, Péter Strausz, Zoltán Bagi, Szilvia Kusza
Dátum:2024
ISSN:2079-7737
Megjegyzések:Indigenous goats are important in the livelihoods of rural households in East African countries. This is due to their ability to produce and reproduce in different environments and climatic conditions. Even though these indigenous goats are important, there is little available information on the genetic characterization of these breeds in Africa and at the international level. This paper reviews the status of indigenous goats, highlighting their production systems, phenotypic and genetic characteristics, and genetic diversity, and proposes potential ways for sustainable improvement and conservation in East African countries. Most households use traditional production systems with various uncharacterized goat breeds and ecotypes, which are hence named after the tribe or locality in which they are found. Most of these goats are classified as small East African breeds, with significant variability in morphological features. Some of the challenges to goat production in this region are indiscriminate crossbreeding, lack of pedigree records, parasites and disease incidences, low-quality pastures, and low levels of management. There is a need for a collaborative approach amongst the actors in goat breeding value chains as well as integrating modern genomic tools into breeding programs to enhance selection. This will ensure the resilience and sustainability of these unique indigenous goat populations in East Africa.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
East African goats
genetic characterization
indigenous goats
phenotypic characterization
production systems
population structure
Megjelenés:Biology. - 13 : 6 (2024), p. 1-16. -
További szerzők:Astuti, Putri Kusuma (1994-) (állattenyésztési genetikus) Wanjala, George (1984-) (Animal scientist) Strausz Péter (1977-) (történész) Bagi Zoltán (1987-) (természetvédelmi mérnök, állatgenetika) Kusza Szilvia (1979-) (agrármérnök)
Pályázati támogatás:Stipendium Hungaricum Program
Tempus
Internet cím:DOI
Intézményi repozitóriumban (DEA) tárolt változat
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