81 (3) pp 158-167

Title: 
Induction of parturition in the sow
Author(s): 
R. DECALUWE, G.P.J. JANSSENS, I. DECLERCK, A. DE KRUIF, D. MAES
Abstract: 

Inducing parturition in the sow can be used to improve farrowing supervision, which may lead to moreweaned piglets. However, if not applied properly, it may lead to premature delivery. Therefore, induction ofparturition should be performed not earlier than two days before the average gestation length of the sows ofa farm.To induce parturition, different protocols, such as single administration of prostaglandins, doubleadministration of prostaglandin with 6-hour interval (split-dose technique) and a combination ofprostaglandins and oxytocin 24 hours later, and different administration routes, such as intramuscularinjection in the neck region and injection in the vulvar region, can be used. Other strategies exist but they areless effective and/or less frequently used.A single injection of prostaglandins results in 60% of the sows farrowing within working hours (22-32hours after injection). Using the split-dose technique or the combination of prostaglandins and oxytocin 24hours later, the percentage increases with 20%. The use of oxytocin however increases the risk of asphyxia inthe piglets, especially in case of inappropriate use. Whether farrowing induction should be applied and whichprotocol used depend on the herd and the preferences of the farmer.

Full text: 
pp 158-167
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