30/11/2025
*Managing the Farrowing and Lactating Sow: A Comprehensive Guide for Optimizing Piglet Survival and Sow Productivity*
*Part I*
Farrowing and lactation are the defining moments in a sow’s reproductive cycle. More than 60% of all preweaning piglet losses occur within the first 72 hours of life, and sow health challenges such as mastitis–metritis–agalactia (MMA) frequently appear during this period. Because of this, farrowing and lactation management have a disproportionate impact on farm profitability, sow longevity, piglet quality and the overall genetics performance on the farm.
This detailed article provides a complete, step-by-step guide to preparing, managing, and supporting farrowing and lactating sows. It integrates best practices from modern intensive systems, Danish production principles, and field-proven protocols used by high-performing operations globally.
*1. Understanding the Physiology: Why This Stage Is High-Risk*
Before diving into practical management, it is important to understand what the sow is undergoing physiologically:
*1.1 Hormonal Shifts*
Near farrowing, the sow experiences sharp drops in progesterone, rise in estrogen, and surges in oxytocin and prolactin. These influence:
* uterine contractions,
* milk letdown,
* maternal behavior,
* and susceptibility to stress.
*1.2 Immune Vulnerability*
Because of the metabolic pressure of milk production, the sow’s immune system becomes more fragile postpartum, increasing risk of:
* mastitis,
* uterine infections,
* fever syndromes,
* agalactia.
*1.3 Piglet Limitations*
Newborn piglets:
* cannot regulate temperature properly,
* have limited energy stores,
* depend entirely on colostrum for antibodies,
* are physically small and weak.
Understanding these biological constraints frames why proper management is essential.
*2. Preparation Before Farrowing: Laying the Foundation (1–2 Weeks Out)*
Farrowing success begins well before the first contraction. Preparation involves nutrition, environment, health programs, and human readiness.
*2.1 Nutritional Preparation*
*Body Condition Score (BCS) Targets*
Aim for *BCS 3.0–3.5*
* Thin sows struggle during labor and produce less colostrum.
* Overfat sows have higher dystocia rates.
*Diet Before Farrowing*
* Maintain moderate energy feed.
* Increase fiber to reduce constipation and lower MMA risk.
* Ensure adequate minerals and vitamins.
*2.2 Health Preparation*
* Update gestation vaccinations (per herd program).
* Deworm before moving to farrowing.
*2.3 Movement to Farrowing Rooms*
Move sows *3–7 days* before expected farrowing to:
* reduce social stress,
* allow environmental acclimatization,
* give time for observation and settling.
*2.4 Environmental and Biosecurity Preparation*
*Farrowing Room Conditions*
* Thoroughly wash, disinfect and dry crates.
* Preheat room to **18–22°C**.
* Preheat the creep area to **32–35°C**.
*Biosecurity*
* Use dedicated boots and clothing.
* Restrict movement between farrowing rooms.
*2.5 Equipment and Supplies to Prepare*
* Obstetrical gloves
* Towels
* Disinfectants
* Heat lamps or plates
* Iodine solution
* Colostrum replacer
* Record sheets
* Clean buckets
* Vet-approved oxytocin/antibiotics (not for routine use)
Preparation eliminates delays when complications arise.
*3. Managing the Farrowing Process*
Farrowing is unpredictable—even genetically superior sows require supervision. The goal is to support normal delivery while minimizing interference.
*3.1 Recognizing Early Signs*
Hours before farrowing:
* Restlessness
* Nest building (if bedding exists)
* Swollen v***a
* Milk letdown
* Reduced feed intake
Stage II farrowing begins when the first strong contractions appear.
*3.2 Normal Farrowing Pattern*
* First piglet: within 1–2 hours of contractions
* Interval between piglets: *10–30 minutes*
* Entire farrowing: *2–5 hours*, depending on litter size
* Placenta passage: usually after the last piglet
*3.3 Supervision Guidelines*
* Once Stage II begins, check the sow *every 20–30 minutes*
* Record time of each piglet.
* Ensure the creep heat is functioning.
* Remove afterbirths and keep the pen clean.
*3.4 When to Intervene*
Assistance (with training) or vet call is needed if:
* Strong contractions >30–60 minutes with no piglet.
* > 60–90 minutes between piglets.
* Piglets visibly stuck in canal
* Sow collapse or extreme exhaustion
*3.5 Assisting a Difficult Farrowing*
1. Trained personnel only:
2. Wear clean, long obstetrical gloves.
3. Lubricate generously.
4. nsert hand gently and locate piglet.
5. Align piglet with birth canal.
6. Apply gentle traction during contractions only.
Never forcefully pull; this can rupture tissues.
If placenta is blocking the way or sow is exhausted, veterinary assistance is mandatory.
~victor Eyo~