A polymorphism in the insulin-like growth factor 1 gene is associated with postpartum resumption of ovarian cyclicity in Holstein-Friesian cows under grazing conditions.
Acta Vet Scand · 2013 · PMC3599257 · PMID 23409757
Significance was set at P ≤ 0.05, and a trend towards significance was set at P ≤ 0.1.
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