Bovine Immune Genes and Milk Production
Author Information
Author(s): Beecher Christine, Daly Mairead, Childs Stuart, Berry Donagh P, Magee David A, McCarthy Tommie V, Giblin Linda
Primary Institution: Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland
Hypothesis
The study aims to quantify the associations between polymorphisms in immune genes and milk production traits in dairy cattle.
Conclusion
Only the CXCR1-777 polymorphism tended to associate with somatic cell score, while other immune gene polymorphisms were linked to milk composition traits.
Supporting Evidence
- The TLR4-2021 polymorphism was associated with milk protein and fat percentage in late lactation.
- CXCR1-777 was significantly associated with fat yield in bulls.
- The CD14-1908 A allele was linked to increased milk fat and protein yield.
- A SERPINA1 haplotype was identified with superior genetic merit for milk protein yield.
Takeaway
Scientists studied how certain genes in cows affect their milk production and health, finding that some genes are linked to better milk quality.
Methodology
The study involved genotyping 246 dairy cows and 848 Holstein-Friesian bulls for various immune gene polymorphisms and analyzing their associations with milk traits.
Limitations
The results may only apply to specific family lines and farm management practices similar to those studied.
Participant Demographics
246 lactating dairy cows from five breeds and 848 Holstein-Friesian bulls.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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