Article
Risk factors associated with detailed reproductive phenotypes in dairy and beef cows.
Animal : an international journal of animal bioscience - 1 May 2014
Carthy T R, Berry D P, Fitzgerald A, McParland S, Williams E J, Butler S T, Cromie A R, Ryan D
Abstract excerpt
The objective of this study was to identify detailed fertility traits in dairy and beef cattle from transrectal ultrasonography records and quantify the associated risk factors. Data were available on 148 947 ultrasound observations of the reproductive tract from 75 949 cows in 843 Irish dairy and beef herds between March 2008 and October 2012. Traits generated included (1) cycling at time of examination, (2)...
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