Trächtigkeitsfeststellung beim Schwein rnit dem Doppler-Verfahren

Meinhardt, H.; Kappen, Chr; Holtz, W.

doi:10.1111/j.1439-0531.1995.tb00747.x

Cited by 1 publication

(2 citation statements)

References 8 publications

(4 reference statements)

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“…However, after day 18 the accuracy was 98 per cent for the pregnant sows and 87 per cent for the non‐pregnant sows. The data are in agreement with previous studies that reported that between 92 and 94 per cent of sows can be correctly diagnosed as pregnant and that between 52 and 76 per cent can be correctly diagnosed as non‐pregnant (Martinat‐Bottè and others 1988, Martinez and others 1992, Szenci and others 1992, 1993, 1997, Meinhardt and others 1995, Quesnel and others 1996). The slight differences in the present study could be due to the fact that sows that were diagnosed pregnant on the first examination but had resorbed the fetus by day 28 were excluded from the analysis.…”

Section: Discussionsupporting

confidence: 92%

“…B‐mode ultrasound is one of the more practical tests of pregnancy in pigs. Taverne and others (1985), Jackson (1986), Botero and others (1986), Martinat‐Bottè and others (1988), Martinez and others (1992), Meinhardt and others (1995), Szenci and others (1992, 1993, 1997) and Quesnel and others (1996) used scanners with transducers of between 3·5 and 5 MHz to diagnose pregnancy in sows from day 18 after insemination. The accuracy of pregnancy diagnosis before day 18 has not been determined.…”

mentioning

confidence: 99%

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Early diagnosis of pregnancy in sows by ultrasound evaluation of embryo development and uterine echotexture

Rensis¹,

Bigliardi²,

Parmigiani³

et al. 2000

Veterinary Record

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Two operators attempted to detect pregnancy ultrasonographically in 196 sows daily from 15 to 25 days after insemination; 20 unbred sows were also investigated. The probe was applied transcutaneously on the right abdominal wall near the last three mammary glands. During each examination, the embryos were visualised and their transverse and longitudinal dimensions were measured. Pregnancy was confirmed by an ultrasonographic detection of embryos five days after the first ultrasound diagnosis and finally 30 to 32 days after insemination. The accuracy of diagnosis was less than 83 per cent on days 15, 16 and 17 but improved to more than 90 per cent from day 18 onwards. The uterine echotexture was studied in seven sows at oestrus and 15, 17, 19, 21, 23 and 25 days after insemination. The echotexture was more homogeneous from days 15 to 25 after insemination than at oestrus.

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