Accuracy of the prediction of parturition date through ultrasonographic measurement of fetal parameters in the queen

Ultrasonographic and progesterone changes during Days 21 to 63 of pregnancy in queens

“…The accuracy of gestational age prediction by ultrasonography changes on gestational week basis, and this observation in our work is in agreement with the findings of Beccaglia et al [16] and Beccaglia and Luvoni [17]. The predictions obtained by Beccaglia et al using HD were similar to our result.…”

“…Although several researchers have done many ultrasonography studies on queen pregnancy, to our knowledge, there are no thorough studies during the last two-thirds of gestation [10,[12][13][14][15][16][17][18]. In 1986, Davidson et al [10] described a considerable variability in the diameters of the gestational sacs (GSs) and the lengths of fetal poles among individual fetuses within a litter, as well as between litters [10].…”

“…Recent studies have investigated whether the accuracy of parturition date prediction is affected by the week of pregnancy when ultrasonographic examination is performed [16,17]. Beccaglia and Luvoni [17] showed that prediction of parturition date obtained by measurement of inner chorionic cavity and biparietal measurements was equally accurate in predicting parturition date at week 5 of gestation.…”

Prediction of Parturition Date in the Bitch and Queen

“…1990). Prediction of parturition date ±2 days using BPD is possible in 85% of queens (Beccaglia et al. 2008b).…”

“…2008b). The DPTV, however, is quite inaccurate with prediction of parturition date within ±2 days in only 60% of queens, and therefore rarely used (Beccaglia et al. 2008b).…”