Pregnancy Diagnosis

Probe Position
			Place probe against flank. Aim just behind opposite shoulder and slowly rotate hand backwards.
Pregnancy Diagnosis
	1-115 days	In the presence of the boar
	18-24 days	In the presence of the boar checking for regular estrus return
	25-34 days	In the presence of the boar to check for late returns
	28 days	With the Doppler machine for uterine pulse Real time ultrasound
	35 days	With the Doppler machine for uterine pulse
	8 weeks	By eye, looking for dropped abdomen Any questionable sow, recheck with Doppler for uterine pulse and fetal pulse or real time for fetus
False Positives
	False uterine pulse when the sow is coming or in season. This is why you need two positives (28 and 35 days) to be confident that the sow is pregnant Always check that the Doppler machine is well serviced and has a well charged battery Regularly re-listen to the teaching tape Use plenty of gel between the head and the sow's body wall
Interpretation
	A sow which records one negative must be rechecked the following day A sow with two negatives must go back to the boar and be rechecked A sow wrongly believed to be in pig post 35 days costs you around $3 a day
Result interpretation:
28 days 35 days Significance Result +ve  +ve  Pregnant Result -ve +ve Coming into second estrus return Result +ve -ve Embryonic death possibly Result -ve -ve Not pregnant

Real time Ultrasound Analysis -interpretation

Extension holder for the real time probe to save back issues

Non-pregnant uterus	Ovarian Follicles and uterine outline	Sow in estrus

Pregnancy fetal vesicles at 28 days. It is essential to visualize the fetus within the vesicle.
Fetal skeleton