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Refinement of two female fertility QTL using alternative phenotypes in French Holstein dairy cattle
Author(s) -
Guillaume F.,
Gautier M.,
Ben Jemaa S.,
Fritz S.,
Eggen A.,
Boichard D.,
Druet T.
Publication year - 2007
Publication title -
animal genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.756
H-Index - 81
eISSN - 1365-2052
pISSN - 0268-9146
DOI - 10.1111/j.1365-2052.2006.01542.x
Subject(s) - biology , fertility , holstein cattle , quantitative trait locus , dairy cattle , phenotype , genetics , zoology , microbiology and biotechnology , gene , population , demography , sociology
Summary Two quantitative trait loci (QTL) affecting female fertility were mapped in French dairy cattle. Phenotypes were non‐return rates at 28, 56, 90 and 282 days after insemination. On chromosome 3, a QTL was significant at 1% for non‐return rate at 90 days, suggesting that it affects early fertility events. An analysis of SLC35A3 , which causes complex vertebral malformation, excluded this gene from the QTL interval. On chromosome 7, a QTL was almost significant ( P = 0.05) for non‐return rate at 282 days. This QTL was associated with abortion and stillbirth problems. Use of appropriate phenotypes appeared important for fine‐mapping QTL associated with fertility.