76 (6) 431-437

Title: 
The agreement of pelvic measurements obtained in Belgian Blue cows with a Rice pelvimeter and the differences between these measurements around parturition
Author(s): 
I. KOLKMAN, K. MATTHYS, G. HOFLACK, L. FIEMS, D. LIPS, A. DE KRUIF, G. OPSOMER
Abstract: 

Because of the elective use of Caesarean Section (CS), the Belgian Blue (BB) breed is being criticized byanimal health organizations in Europe and it also has economical consequences. Within the selection for the reductionof CS, the increase of pelvic dimensions plays a crucial role. Correct information about the pelvic canalis a very important condition to perform this selection. Measurements of the pelvic canal in living animals canbe performed by using a Rice pelvimeter. The present paper describes a study of the repeatability between twodifferent technicians and within one technician of pelvic measurements in double muscled BB cows using a Ricepelvimeter. Additionally, changes within the pelvic dimensions at parturition were examined by measurementsat three different points around calving (one month before, within 24 hours and two weeks after parturition). Nosignificant differences were found for the pelvic height between the two technicians. The variation coefficient ofthe measurements of the second technician proved to be smaller but not significantly different from technician1, for pelvic width as well as for pelvic height. Only the pelvic height measured at parturition significantly differed (0.48 cm) from the measurements taken one month before calving (P < 0.05). Based on these results we candecide that the measurements taken by the Rice pelvimeter are repeatable within one technician and between twodifferent technicians. Finally, parturition can have an effect on the pelvic measurements.

Full text: 
pp 431-437
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