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Volume 93, Issue 3 , Pages 901-910 , March 2010

Interrelationships between herd-level reproductive performance measures based on intervals from initiation of the breeding program in year-round and seasonal calving dairy herds

Received 18 January 2009 ,Accepted 24 November 2009.

Median pregnancy rates (cumulative percentage of cows pregnant) in 43 year-round calving herds (■) and 124 seasonal calving herds (◊) by week of breeding program. Bars indicate 25th and 75th percentil

Median pregnancy rates (cumulative percentage of cows pregnant) in 43 year-round calving herds (■) and 124 seasonal calving herds (◊) by week of breeding program. Bars indicate 25th and 75th percentiles.
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Scattergraphs of submission versus conception rates for 43 year-round calving herds (■) and 124 seasonal calving herds (◊) for the first (upper graph) and second (lower graph) 3-wk periods of the bree

Scattergraphs of submission versus conception rates for 43 year-round calving herds (■) and 124 seasonal calving herds (◊) for the first (upper graph) and second (lower graph) 3-wk periods of the breeding program.
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