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Relationship between milk protein polymorphism and selected cows’ reproductive indices

2023Journal article Open access
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dc.contributor.authorCzerniawska-Piątkowska, Ewa
dc.contributor.authorCioch-Szklarz, Barbara
dc.contributor.authorKowalczyk, Alicja
dc.contributor.authorWrzecińska, Marcjanna
dc.contributor.authorWójcik, Jerzy
dc.contributor.authorKordan, Władysław
dc.contributor.authorAraújo, José Pedro
dc.contributor.authorCerqueira, Joaquim
dc.contributor.authorKossakowski, Kamil
dc.contributor.authorCwynar, Przemysław
dc.contributor.authorSablik, Piotr
dc.date.accessioned2024-01-03T11:04:45Z
dc.date.available2024-01-03T11:04:45Z
dc.date.issued2023
dc.description.abstractThis research sought to determine the effect of selected milk protein polymorphisms on the reproduction parameters of 598 black and white Polish Holstein–Friesian cattle. The analyzed genes were kappa-casein (CSN3) and beta-lactoglobulin (BLG). The following reproductive indexes were selected: the age at first calving, the interpregnancy period, the calving interval, and the insemination index. The influence of the identified genotypes on the course of parturition in cows was also analyzed. Source data were collected for each cow from the beginning of the herd life and reproduction to its culling from the herd or the end of its third lactation. Data on the age at first calving, the amount of semen portions for artificial insemination (insemination index), the interpregnancy period, and the calving interval for each cow were also collected. A contingency analysis was performed through contingency tables using a Pearson’s chi-squared test for each CSN3 and BLG genotype. The results show that the BB genotype of the kappa-casein gene was associated with the most favorable values of reproductive indicators. In the case of the calving interval, the values were significantly more favorable than those of other genotypes (p 0.05). No effect of beta-lactoglobulin polymorphism on the analyzed reproductive indices was observed. On the other hand, in the case of the interpregnancy period, significant statistical differences were obtained between the AA and BB genotypes. The analyzed kappa-casein and beta-lactoglobulin genotypes did not significantly influence the course of parturition in cows. To conclude, the genotype polymorphism BB CSN3 is the most favorable for the performance of the cows in the examined herd.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCzerniawska-Piątkowska, Ewa; Cioch-Szklarz, Barbara; Kowalczyk, Alicja; Wrzecińska, Marcjanna; Wójcik, Jerzy; Kordan, Władysław; Araújo, José Pedro; Cerqueira, Joaquim; Kossakowski, Kamil; Cwynar, Przemysław; Sablik, Piotr (2023). Relationship between milk protein polymorphism and selected cows’ reproductive indices. Animals. eISSN 2076-2615. 13:11, p. 1-10pt_PT
dc.identifier.doi10.3390/ani13111729pt_PT
dc.identifier.eissn2076-2615
dc.identifier.urihttp://hdl.handle.net/10198/29041
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectPolish Holstein–Friesian cattlept_PT
dc.subjectMilk protein polymorphismpt_PT
dc.subjectKappa-caseinpt_PT
dc.subjectBeta-lactoglobulinpt_PT
dc.subjectReproductive indicatorspt_PT
dc.titleRelationship between milk protein polymorphism and selected cows’ reproductive indicespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage10pt_PT
oaire.citation.issue11pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleAnimalspt_PT
oaire.citation.volume13pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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