The effect of mild fat infiltration in the liver on the fertility of Finnish Ayrshire cows. Acta vet. scand. 1987, 28, 151-155. -The objective of this work was to study the effect of mild fat infiltration in the liver on the reproductive performance of Finnish Ayrshire cows. Eighty-five multiparous and 17 primiparous cows were investigated. The mean percentage of fat in the liver at I week after parturition was 3.9 ± 0.5. Cows with $ 9 % fat in the liver at I week after calving conceived

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... y earlier than those with> 9% (87.1 ± 2.7 and 102.2 ± 15.0 days postpartum, respectively). The difference was not statistically significant. The incidence rate of retentio secundinarum and/or endometritis was significantly higher in the > 9 % fat group than in the $ 9 % fat group. Unobserved oestrus and ovarian cysts occurred with equal frequency in both groups. fatty liver; infertility; ret. sec.