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1.

001-es BibID:BIBFORM047930
Első szerző:Budai Csilla (agrár)
Cím:Performance and Adaptability of the Dorper Sheep Breed under Hungarian and Romanian Rearing Conditions / Csilla Budai, Dinu Gavojdian, András Kovács, Felician Negrut, János Oláh, Ludovic Toma Cziszter, Szilvia Kusza, András Jávor
Dátum:2013
ISSN:1841-9364 (print) 2344-4576 (online)
Megjegyzések:Dorper (DO) is a meat-specialized hair composite breed, intensively selected for growth rates, carcass quality,unselective grazing. The aim of the current comparative study was to evaluate the adaptability and performance ofDO breed under Hungarian and Romanian rearing conditions. DO breed was introduced into Hungary to DebrecenUniversity in 2008. Under Hungarian rearing conditions the DO breed maintained its non-seasonal reproduction andreproductive precocity, with maiden ewes being put to ram starting the age of 9 months. Lamb crops of 2 weaned peryear are common under proper management and feeding conditions. In Romania DO breed was introduced starting2007, with the heard-book and genetic improvement plan of the breed being established in 2009. Under Romanianfarming conditions the DO rams are usually used as terminal sires which are crossed with indigenous Turcana andTsigai breeds, being preferred by the farmers to sire the crossbreds because of the high growth rates and nonselectivegrazing of the crossbreds. Fertility of DO ewes and survival rates of the DO sired lambs until weaning werenot affected when compared to native Turcana breed. It was concluded that DO breed has adapted and performsextremely well under both Hungarian and Romanian rearing conditions.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Doktori iskola
Megjelenés:Lucrari Stiintifice Zootehnie si Biotehnologii = Scientific Papers Animal Science and Biotechnologies. - 46 : 1 (2013), p. 344-349. -
További szerzők:Gavojdian, Dinu Kovács András (1946-2022) (állatorvos) Negrut, Felician Oláh János (1976-) (állattenyésztés) Cziszter, Ludovic Toma Kusza Szilvia (1979-) (agrármérnök) Jávor András (1952-) (agrármérnök)
Pályázati támogatás:TÁMOP-4.2.2/B-10/1-2010-0024
TÁMOP
Állattenyésztési Tudományok Doktori Iskola
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2.

001-es BibID:BIBFORM087990
Első szerző:Cziszter, Ludovic Toma
Cím:Effects of temperament on production and reproductive performances in Simmental dual-purpose cows / Cziszter Ludovic Toma, Gavojdian Dinu, Neamt Radu, Neciu Florin, Kusza Szilvia, Ilie Daniela-Elena
Dátum:2016
ISSN:1558-7878
Megjegyzések:The aim of the current research was to evaluate the effects that temperament has on production and reproduction performances in Simmental dual-purpose cattle breed. Behavioral reactivity of cows significantly influenced (P <= 0.05) the body weight, milk yield, fat yield, protein yield, protein content, and the calving interval of the cows included in the study-head, having more substantial effects (P <= 0.001) on the milking speed and the number of steps per day, with calmer cows outperforming the nervous counterparts. However, temperament did not influence (P > 0.05) traits such as days open, number of inseminations per gestation, fat percentage, somatic cell count, body condition score, cleanliness of udder and cleanliness of hindquarter. Significant negative phenotypic correlations were found between temperament and cows body weight (-0.19), milk yield (-0.19), fat yield (-0.14), protein yield (-0.18), and milking speed (-0.18). Current results suggest that selection for calm temperaments will translate into increased milk, fat, and protein yields in Simmental cattle, as well as shorter the calving interval and improved milk ejection.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
animal welfare
behavioral reactivity
cattle
Simmental
selection traits
Megjelenés:Journal of Veterinary Behavior. - 15 (2016), p. 50-55. -
További szerzők:Gavojdian, Dinu Neamt, Radu Neciu, Florin Kusza Szilvia (1979-) (agrármérnök) Ilie, Daniela Elena
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3.

001-es BibID:BIBFORM088137
Első szerző:Gavojdian, Dinu
Cím:Effects of behavioral reactivity on production and reproduction traits in Dorper sheep breed / Gavojdian Dinu, Cziszter Ludovic Toma, Budai Csilla, Kusza Szilvia
Dátum:2015
ISSN:1558-7878
Megjegyzések:The aim of the current research was to evaluate the effects of behavioral reactivity on production and reproduction performance in Dorper sheep, a meat breed. Temperament of animals was subjectively evaluated using a 5-point scoring system at weighing, during which sheep spent 30 seconds on the scale. The heritability of temperament was low (0.10 +- 0.03). Estimated phenotypic (rp) and genetic (rg) correlations between temperament and litter size in ewes were negative and negligible (P > 0.05) at -0.06 +- 0.18 and -0.08 +- 0.09, respectively. Significant genetic correlations were found between lamb temperament and preweaning growth rate (rg = -0.44 +- 0.07, P <= 0.05) and postweaning growth till the age of 120 days (rg = -0.52 +- 0.08, P <= 0.05). Significant genetic correlations were found between lamb temperament and growth rates during their first 3 months of age. As a result, selection for calm temperaments should translate to increased growth rates of lambs. Negative correlations between temperament and production traits, both in ewes and lambs, suggested that selection against animals that are highly reactive to improve welfare and ease of handling would not have detrimental impacts on productivity.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Dorper breed
behavior
genetic parameters
growth rates
sheep welfare
temperament
Megjelenés:Journal of Veterinary Behavior. - 10 : 4 (2015), p. 365-368. -
További szerzők:Cziszter, Ludovic Toma Budai Csilla (1987-) (agrár) Kusza Szilvia (1979-) (agrármérnök)
Pályázati támogatás:TÁMOP-4.2.4.A/2-11-1-2012-0001
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4.

001-es BibID:BIBFORM088102
Első szerző:Gavojdian, Dinu
Cím:Reproduction Efficiency and Health Traits in Dorper, White Dorper, and Tsigai Sheep Breeds under Temperate European Conditions / Gavojdian Dinu, Budai Csilla, Cziszter Ludovic Toma, Csizmár Nikolett, Jávor András, Kusza Szilvia
Dátum:2015
ISSN:1011-2367 1976-5517
Megjegyzések:The objective of the current pilot study was to evaluate the reproductive performance and health indicators in Dorper, White Dorper, and Tsigai breed ewes managed semi-intensively under European temperate conditions. A total of 544 ewe-year units were observed, with ewes (ranging from 1.5 to 8 years of age) managed under identical rearing conditions for a period of two consecutive production cycles (2012 through 2013 and 2013 through 2014). In general, significant (p?0.001) genotype-related disparities were found in occurrence rates for all health parameters taken into study. Clinical mastitis incidence was significantly lower (p?0.05) in Dorper (9.4%) and White Dorper (10.8%) breeds compared to that of Tsigai ewes (17.4%). Significant differences (p?0.05) for lameness were found between Dorper and Tsigai breeds, with occurrence rates of 8.0% and 2.9%, respectively. Incidence for pneumonia and abortion was not influenced (p>0.05) by the ewes' genotype. Litter size was significantly lower (p?0.05) in White Dorper breed than for Dorper and Tsigai ewes, of 1.21, 1.40, and 1.45, respectively. Conception rates and lambs survival were not affected (p>0.05) by genotype. Results suggest that South African Dorper and White Dorper sheep breeds have adapted well to the specific rearing conditions.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Sheep
Genotype
Fitness
Health
Performance
Reproduction
Megjelenés:Asian-Australasian Journal of Animal Sciences. - 28 : 4 (2015), p. 599-603. -
További szerzők:Budai Csilla (1987-) (agrár) Cziszter, Ludovic Toma Csizmár Nikolett (1989-) (állattenyésztő mérnök) Jávor András (1952-) (agrármérnök) Kusza Szilvia (1979-) (agrármérnök)
Pályázati támogatás:TÁMOP 4.2.4.A/2-11-1-2012-0001
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5.

001-es BibID:BIBFORM111042
035-os BibID:(cikkazonosító)1484 (WoS)000987004100001 (Scopus)85159145210
Első szerző:Ilie, Daniela Elena
Cím:Kompetitive Allele Specific PCR Genotyping of 89 SNPs in Romanian Spotted and Romanian Brown Cattle Breeds and Their Association with Clinical Mastitis / Daniela Elena Ilie; Dinu Gavojdian; Szilvia Kusza; Radu Ionel Neamț; Alexandru Eugeniu Mizeranschi; Ciprian Valentin Mihali; Ludovic Toma Cziszter
Dátum:2023
ISSN:2076-2615
Megjegyzések:Mastitis is the most common production disease in the dairy sector worldwide, its incidence being associated with both cows` exposure to bacteria and the cows` genetic make-up for resistance to pathogens. The objective of our study was to analyse 89 missense SNPs belonging to six genes (CXCR2, CXCL8, TLR4, BRCA1, LTF, BOLA-DRB3), which were found to be associated with genetic resistance or susceptibility to mastitis. A total of 298 cattle (250 Romanian Spotted and 48 Romanian Brown) were genotyped by Kompetitive Allele Specific PCR (KASP) and a chi-squared test was used for genetic association studies with clinical mastitis. A total of 35 SNPs (39.3%) among the selected 89 SNPs were successfully genotyped, of which 31 markers were monomorphic. The polymorphic markers were found in two genes: TLR4 (rs460053411) and BOLA-DRB3 (rs42309897, rs208816121, rs110124025). The polymorphic SNPs with MAF > 5% and call rates > 95% were used for the association study. The results showed that rs110124025 in the BOLA-DRB3 gene was significantly associated with mastitis prevalence (p ? 0.05) in both investigated breeds. Current results show that the SNP rs110124025 in the BOLA-DRB3 gene can be used as a candidate genetic marker in selection for mastitis resistance in Romanian dairy cattle.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
KASP
mastitis
polymorphism
Romanian Brown
Romanian Spotted
Megjelenés:Animals. - 13 : 9 (2023), p. 1-13. -
További szerzők:Gavojdian, Dinu Kusza Szilvia (1979-) (agrármérnök) Neamt, Radu Mizeranschi, Alexandru Eugeniu Ciprian, Valentin Mihali Cziszter, Ludovic Toma
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6.

001-es BibID:BIBFORM088166
035-os BibID:(cikkazonosító)e013873
Első szerző:Ilie, Daniela Elena
Cím:Microsatellite and Mitochondrial DNA Study of Native Eastern European Cattle Populations: The Case of the Romanian Grey / Ilie Daniela Elena, Cean Ada, Cziszter Ludovic Toma, Gavojdian Dinu, Iván Alexandra, Kusza Szilvia
Dátum:2015
ISSN:1932-6203 1932-6203
Megjegyzések:The Eastern European Grey cattle are regarded as the direct descendants of the aurochs(Bos taurus primigenius). Nowadays in Romania, less than 100 Grey animals are being reared and included in the national gene reserve. We examined the genetic diversity among Romanian Grey, Brown, Spotted and Black and White cattle breeds, with a particular focuson Romanian Grey through the use of (i) 11 bovine specific microsatellite markers on 83 animals and (ii) 638 bp length of mitochondrial DNA (mtDNA) D-loop region sequence data from a total of 81 animals. Both microsatellite and mtDNA analysis revealed a high level of genetic variation in the studied breeds. In Romanian Grey a total of 100 alleles were found,the mean number of observed alleles per locus was 9.091; the average observed heterozygosity was 0.940; the Wright's fixation index (FIS) was negative (-0.189) and indicates that there is no inbreeding and no selection pressure. MtDNA analysis revealed 52 haplotypes with 67 variable sites among the Romanian cattle breeds without any insertion or deletion.Haplotype diversity was 0.980?0.007 and ranged from 0.883?0.056 (Brown) to 0.990?0.028 (Spotted and Black and White). The highest genetic variability of the mtDNA was recorded in the Grey breed, where 18 haplotypes were identified. The most frequent mtDNAD-loop region belonged to T3 haplogroup (80.247%), which was found across all studied breeds, while T2 haplotypes (16.049%) was only found in Grey, Spotted and Black and White genotypes. The T1 haplotypes (3.704%) were found in the Grey and Spotted. The current results contribute to the general knowledge on genetic diversity found in Eastern European cattle breeds and could prove a valuable tool for the conservation efforts of animal genetic resources (FAnGR).
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
DNA Study
Native Eastern European Cattle Populations
Romanian Grey
Megjelenés:Plos One. - 10 : 9 (2015), p. 1-18. -
További szerzők:Cean, Ada Cziszter, Ludovic Toma Gavojdian, Dinu Iván Alexandra Kusza Szilvia (1979-) (agrármérnök)
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7.

001-es BibID:BIBFORM088064
Első szerző:Kusza Szilvia (agrármérnök)
Cím:Mitochondrial DNA variability in Gyimesi Racka and Turcana sheep breeds / Kusza Szilvia, Zakar Erika, Budai Csilla, Cziszter Ludovic-Toma, Padeanu Ioan, Gavojdian Dinu
Dátum:2015
ISSN:0001-527X 1734-154X
Megjegyzések:The current knowledge and documentation on the origins and relationship between Gyimesi Racka reared in Hungary and the Romanian Turcana is rather controversial. Lack of information and scientific reliable proofs for the divergent theories found in the two countries motivated us to implement a trial using molecular methods to assess the genetic distance and diversity in the two breeds. Hair follicles were collected from Gyimesi Racka (2 phenotypes) and from Turcana (6 ecotypes). The 599 bp segment of the D-loop region of the mitochondrial DNA was sequenced. Altogether, 42 haplotypes were identified, while 23 were found in both populations. Populations were highly diverse according to the haplotype and nucleotide diversity indices. AMOVA analysis showed that most of the variation was observed within populations (98%), indicating a weak genetic structure between the two breeds. Animals were grouped into seven groups based on their phenotype; however genetic distances among them were also low. Tajima's D, Fu's Fs, goodness-of-fit statistics, mismatch distribution and network analysis suggested recent demographic expansion. Current comprehensive mtDNA study indicates that there is very low level of genetic differentiation between the Gyimesi Racka and Turcana populations therefore they are de facto one trans-boundary breed.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
farm animal conservation
genetic diversity
mtDNA
trans-boundary breeds
Zackel group
Megjelenés:Acta Biochimica Polonica. - 62 : 2 (2015), p. 273-280. -
További szerzők:Zakar Erika (1986-) Budai Csilla (1987-) (agrár) Cziszter, Ludovic Toma Padeanu, Ioan Gavojdian, Dinu
Pályázati támogatás:TÁMOP-4.2.2/B-10/1-2010-0024
TÁMOP
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8.

001-es BibID:BIBFORM079291
035-os BibID:(cikkazonosító)e4416 (WoS)000426518200008 (Scopus)85042415707 (PMID)29492347 (PMCID)PMC5827040
Első szerző:Kusza Szilvia (agrármérnök)
Cím:Kompetitive Allele Specific PCR (KASP TM) genotyping of 48 polymorphisms at different caprine loci in French Alpine and Saanen goat breeds and their association with milk composition / Szilvia Kusza, Ludovic Toma Cziszter, Daniela Elena Ilie, Maria Sauer, Ioan Padeanu, Dinu Gavojdian
Dátum:2018
ISSN:2167-8359
Megjegyzések:Using a novel and fast genotyping method called Kompetitive Allele Specific PCR (KASP TM), we carried out a pilot study on 48 single nucleotide polymorphisms (SNPs) belonging to 40 genes in French Alpine (n = 24) and Saanen (n = 25) goats reared in Romania. Furthermore, the associations of the 13 polymorphic genetic variants with milk production and composition were investigated. Thirty-five SNPs did not show polymorphism in the studied populations. Polymorphic SNPs were detected in the following genes: CAST, CLEC4E, DES, GHRHR, HSP90AA1, IL15RA, IL1RN, IL8, MITF, PPRC1, SOCS3, TNF and TNFSF13. The studied Alpine population was in Hardy-Weinberg disequilibrium at the g.62894878A>G locus (rs671391101) (P < 0.05). The results showed that four SNPs rs671391101 (GHRHR), rs640582069 (IL1RN) rs635583012 (SOCS3) and rs635969404 (IL15RA) out of the 13 polymorphic markers were significantly associated with milk production, protein, fat and lactose content in the Alpine breed. However, no significant effect was recorded in the Saanen population regarding milk yield or milk chemical composition. The current results provide new insights for the development of SNP marker-assisted selection technology in the goat industry and confirm the potential of using SNPs for the GHRHR, IL1RN, SOCS3, and IL15RA genes as candidate genes for selection, highlighting the direct implications of such genes for farm production outputs. The results from this study are relevant for future goat genomic studies and the inclusion of the associated traits into up-to-date selection schemes.
Tárgyszavak:Agrártudományok Állatorvosi tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
KASP
Saanen
Polymorphism
Romania
French alpine
Milk traits
Associations
Megjelenés:PeerJ. - 6 (2018), p. 1-15. -
További szerzők:Cziszter, Ludovic Toma Ilie, Daniela Elena Sauer, Maria Padeanu, Ioan Gavojdian, Dinu
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9.

001-es BibID:BIBFORM106676
035-os BibID:(cikkazonosító)300 (WoS)000914082600001 (Scopus)85146777802
Első szerző:Wanjala, George (Animal scientist)
Cím:An on-station analysis of factors affecting growth traits of Pure Red Maasai and Dorper sheep breeds under an extensive production system / George Wanjala, Nelly Kichamu, Ludovic Toma Cziszter, Putri Kusuma Astuti, Szilvia Kusza
Dátum:2023
ISSN:2076-2615
Megjegyzések:This comparative study aimed to evaluate genetic and environmental factors` effects on thegrowth traits of lambs in Dorper and Red Maasai (RedM) sheep breeds. The data analyzed containedthe following measurements: birth weight (Bwt), weaning weight (Wwt), yearling weight (Ywt), birthtype (single or twins), and details on each lamb`s dam (dam ID and age) and sire. Except for the RedM,whose birth weight decreased with time, both breeds generally showed an increase in other growthweights across the study period, with yearly variations affecting both breeds. Additionally, analysis bya linear mixed model with restricted maximum likelihood (REML) showed that only breed as a factorsignificantly (p< 0.05) influenced birth weight; breed, sex, and birth type all significantly (p< 0.05)influenced weaning weight, whereas season, sex, and dam age significantly (p< 0.05) influencedyearling weight. The RedM breed outperformed the Dorper breed in post-weaning growth rate,demonstrating early resilience and adaptation to local environmental factors independent of maternalinfluence. Breed and non-genetic factors play a vital role in the growth of lambs, and the resultsof this study offer an opportunity for improved farm management under an extensive productionsystem and selection for the conservation of the indigenous Red Maasai breed.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
weaning weight
yearling weight
growth traits
non-genetic factors
extensive production
Megjelenés:Animals. - 13 : 2 (2023), p. 1-10. -
További szerzők:Kichamu, Nelly (1978-) Cziszter, Ludovic Toma Astuti, Putri Kusuma (1994-) (állattenyésztési genetikus) Kusza Szilvia (1979-) (agrármérnök)
Pályázati támogatás:Tempus Public Foundation
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