Question

Appearance through vulva the fore limbs of fetus with chin resting on knees during calving is indicative of

• A. Dystocia
• B. Twinning
• C. Still birth
• D. Eutocia

Hint:

Normal presentation = Anterior presentation, Dorso-sacral position, with limbs and head fully extended (Eutocia).

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Parturition (calving) involves three variables: presentation, position, and posture of the fetus as it enters the birth canal.
The ease of delivery depends on how the fetus aligns with the maternal pelvis.

Step 2: Detailed Explanation:
Eutocia is defined as a normal, uncomplicated birth.
During a normal calving, the fetus enters the birth canal in:
Anterior presentation (head first).
Dorso-sacral position (the fetal spine aligns with the maternal spine).
Extended posture (both forelimbs are extended forward, and the head rests flat on top of the knees/forelimbs).
When the two front hooves emerge from the vulva followed by the muzzle and chin resting on the knees, it indicates the fetus is in the correct position for an easy, unassisted birth.
Dystocia refers to a difficult birth caused by abnormal fetal presentation or maternal factors.
Twinning often leads to dystocia due to entangled limbs.
Still birth refers to a dead fetus but is not defined by its presentation.

Step 3: Final Answer:
The presentation of the forelimbs with the chin resting on the knees represents a normal delivery, which is termed eutocia.