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The optimum time frame for viewing a foetus is between 6 to 20 weeks old, aging of foetus can be done in this timeframe. Twins are also detectable within 6 to 20 weeks old. 100-150 and hour can be scanned depending on information required and facilities. Abnormalities such as pyometra and ovarian cysts are detectable in most cases. Animals with no detectable empty uterus are manually checked. Pregnancy scanning is comparable to manual testing in cost per cow, but there are other significant cost savings. Foetus at 11 weeks old.
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