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https://doi.org/10.15567/mljekarstvo.2021.0101

Genetic polymorphism and effect on milk production of CSN2 gene in conventional and local cattle breeds in Croatia

Ante Ivanković ; University of Zagreb Faculty of Agriculture, Svetošimunska cesta 25, 10000 Zagreb, Croatia
Mateja Pećina ; University of Zagreb Faculty of Agriculture, Svetošimunska cesta 25, 10000 Zagreb, Croatia
Jelena Ramljak ; University of Zagreb Faculty of Agriculture, Svetošimunska cesta 25, 10000 Zagreb, Croatia
Vedat Pašić ; Meggle d.o.o., Bihać, Grabeška 34, 77000 Bihać, Bosnia and Herzegovina

Puni tekst: engleski, pdf (1 MB) str. 3-12 preuzimanja: 106* citiraj
APA 6th Edition
Ivanković, A., Pećina, M., Ramljak, J. i Pašić, V. (2021). Genetic polymorphism and effect on milk production of CSN2 gene in conventional and local cattle breeds in Croatia. Mljekarstvo, 71 (1), 3-12. https://doi.org/10.15567/mljekarstvo.2021.0101
MLA 8th Edition
Ivanković, Ante, et al. "Genetic polymorphism and effect on milk production of CSN2 gene in conventional and local cattle breeds in Croatia." Mljekarstvo, vol. 71, br. 1, 2021, str. 3-12. https://doi.org/10.15567/mljekarstvo.2021.0101. Citirano 23.04.2021.
Chicago 17th Edition
Ivanković, Ante, Mateja Pećina, Jelena Ramljak i Vedat Pašić. "Genetic polymorphism and effect on milk production of CSN2 gene in conventional and local cattle breeds in Croatia." Mljekarstvo 71, br. 1 (2021): 3-12. https://doi.org/10.15567/mljekarstvo.2021.0101
Harvard
Ivanković, A., et al. (2021). 'Genetic polymorphism and effect on milk production of CSN2 gene in conventional and local cattle breeds in Croatia', Mljekarstvo, 71(1), str. 3-12. https://doi.org/10.15567/mljekarstvo.2021.0101
Vancouver
Ivanković A, Pećina M, Ramljak J, Pašić V. Genetic polymorphism and effect on milk production of CSN2 gene in conventional and local cattle breeds in Croatia. Mljekarstvo [Internet]. 2021 [pristupljeno 23.04.2021.];71(1):3-12. https://doi.org/10.15567/mljekarstvo.2021.0101
IEEE
A. Ivanković, M. Pećina, J. Ramljak i V. Pašić, "Genetic polymorphism and effect on milk production of CSN2 gene in conventional and local cattle breeds in Croatia", Mljekarstvo, vol.71, br. 1, str. 3-12, 2021. [Online]. https://doi.org/10.15567/mljekarstvo.2021.0101
Puni tekst: hrvatski, pdf (1 MB) str. 3-12 preuzimanja: 62* citiraj
APA 6th Edition
Ivanković, A., Pećina, M., Ramljak, J. i Pašić, V. (2021). Genetski polimorfizam i utjecaj na proizvodnju mlijeka CSN2 gena u konvencionalnim i lokalnim pasminama goveda u Hrvatskoj. Mljekarstvo, 71 (1), 3-12. https://doi.org/10.15567/mljekarstvo.2021.0101
MLA 8th Edition
Ivanković, Ante, et al. "Genetski polimorfizam i utjecaj na proizvodnju mlijeka CSN2 gena u konvencionalnim i lokalnim pasminama goveda u Hrvatskoj." Mljekarstvo, vol. 71, br. 1, 2021, str. 3-12. https://doi.org/10.15567/mljekarstvo.2021.0101. Citirano 23.04.2021.
Chicago 17th Edition
Ivanković, Ante, Mateja Pećina, Jelena Ramljak i Vedat Pašić. "Genetski polimorfizam i utjecaj na proizvodnju mlijeka CSN2 gena u konvencionalnim i lokalnim pasminama goveda u Hrvatskoj." Mljekarstvo 71, br. 1 (2021): 3-12. https://doi.org/10.15567/mljekarstvo.2021.0101
Harvard
Ivanković, A., et al. (2021). 'Genetski polimorfizam i utjecaj na proizvodnju mlijeka CSN2 gena u konvencionalnim i lokalnim pasminama goveda u Hrvatskoj', Mljekarstvo, 71(1), str. 3-12. https://doi.org/10.15567/mljekarstvo.2021.0101
Vancouver
Ivanković A, Pećina M, Ramljak J, Pašić V. Genetski polimorfizam i utjecaj na proizvodnju mlijeka CSN2 gena u konvencionalnim i lokalnim pasminama goveda u Hrvatskoj. Mljekarstvo [Internet]. 2021 [pristupljeno 23.04.2021.];71(1):3-12. https://doi.org/10.15567/mljekarstvo.2021.0101
IEEE
A. Ivanković, M. Pećina, J. Ramljak i V. Pašić, "Genetski polimorfizam i utjecaj na proizvodnju mlijeka CSN2 gena u konvencionalnim i lokalnim pasminama goveda u Hrvatskoj", Mljekarstvo, vol.71, br. 1, str. 3-12, 2021. [Online]. https://doi.org/10.15567/mljekarstvo.2021.0101

Sažetak
Over the past three decades, the scientific and public interest has been initiated by studies in which the negative effect of milk consumption of beta-casein A1 variant has been observed on consumers’ health. The production of “A2 milk” is one of the ways to economically increase the competitiveness of small and medium-sized dairy farms. Breeders of endangered local breeds are also interested in reaffirmation through production of “A2 milk”. The aim of this study is to determine frequencies of A1 and A2 variants of beta-casein in three commercial and three local breeds of cattle in Croatia, and their relationship with production indicators of commercial breeds in the first three lactations. The genomic DNA was extracted from hair and determination of CSN2 genotypes was conducted by PCR RFLP method. Data for milk yield and chemical composition were provided by the central database. The dominant presence of A2 variant beta-casein in the investigated cattle breeds (0.650-0.758) and the increase in the frequency of A2 beta-casein in the population of Simmental and Istrian cattle were determined. The association of A2A2 and A1A1 genotypes of beta-casein with lactation production and milk fat content in the first and second lactation was observed (p<0.05). The dominance of the A2 allelic variation of beta-casein makes the researched conventional and local breeds suitable for the production of “A2 milk”. The breeding extension of A2 allelic variation of beta-casein within local cattle breeds should be carried out carefully trying not to lose part of the existing genetic variability.

Ključne riječi
beta-casein; cattle breeds; polymorphism; A2 milk

Hrčak ID: 246950

URI
https://hrcak.srce.hr/246950

[hrvatski]

Posjeta: 340 *