Document Detail


Detection of bovine leukocyte antigen DRB3 alleles as candidate markers for clinical mastitis resistance in Holstein x Zebu.
MedLine Citation:
PMID:  18820165     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Bovine leukocyte antigen DRB3 alleles from Holstein x Zebu crossbred dairy cows (n = 409) were analyzed using the PCR-RFLP technique. Exon II of DRB3 was amplified using locus-specific primers (HLO30/HLO32), followed by digestion with 3 restriction enzymes (RsaI, BstyI, and HaeIII). Forty alleles were found with frequency ranging from 0.005 to 0.139. The most frequently detected alleles of Holstein x Zebu were DRB3*16, *51, *23, *11, *8, and *1, accounting for 61.12% of the alleles in the population. Detection of candidate alleles for clinical mastitis occurrence was performed by logistic regression. It was found that percentage of Holstein fraction in crossbred cows had a nonsignificant effect (P > 0.05). However, parity had a significant effect on mastitis occurrence. In addition, DRB3*1 and *52 were the most associated with the occurrence of clinical mastitis, whereas *15, *51, and *22 were associated with resistance in crossbred populations. This is the first report of association of DRB3*15 and *51 with mastitis resistance. The association was validated by examining the candidate alleles in another commercial population. Highly susceptible (n = 43) and resistant (n = 42) groups of Holstein x Zebu cows were investigated. The result confirmed that DRB3*1 and *52 could be considered as susceptibility alleles, whereas *15, *51, and *22 could be considered as resistant alleles in Holstein x Zebu raised under tropical conditions. In addition, allele effects on 305-d milk production were estimated by BLUP. It was shown that most alleles associated with high clinical mastitis occurrence were related to increased milk yield. This study revealed that allele DRB3*10 had the greatest effect on increasing milk yield with moderate resistance to clinical mastitis, which could be used as a potential marker for selection in dairy genetic evaluation.
Authors:
M Duangjinda; D Buayai; V Pattarajinda; Y Phasuk; S Katawatin; T Vongpralub; A Chaiyotvittayakul
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-09-26
Journal Detail:
Title:  Journal of animal science     Volume:  87     ISSN:  1525-3163     ISO Abbreviation:  J. Anim. Sci.     Publication Date:  2009 Feb 
Date Detail:
Created Date:  2009-01-26     Completed Date:  2009-04-01     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8003002     Medline TA:  J Anim Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  469-76     Citation Subset:  IM    
Affiliation:
Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Thailand. monchai@kku.ac.th
Data Bank Information
Bank Name/Acc. No.:
GENBANK/EU586800;  EU586801;  EU586802;  EU586803;  EU586804;  EU586805;  EU586806;  EU586807;  EU586808
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MeSH Terms
Descriptor/Qualifier:
Animals
Base Sequence
Breeding*
Cattle
Female
Gene Frequency
Genetic Markers / genetics*
Histocompatibility Antigens / genetics*
Immunity, Innate / genetics*
Lactation / genetics
Male
Mastitis, Bovine / diagnosis,  genetics*
Milk / secretion
Molecular Sequence Data
Polymorphism, Genetic
Reproducibility of Results
Chemical
Reg. No./Substance:
0/Genetic Markers; 0/Histocompatibility Antigens

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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