Managing the lactating sow for optimal weaning and rebreeding performance

Area of Science:

• Animal Science
• Reproductive Physiology
• Swine Nutrition

Background:

• Sow reproductive performance is closely linked to nutrient intake during lactation.
• Effective management during lactation is crucial for optimizing milk production and subsequent fertility.

Purpose of the Study:

• To identify key management factors that influence lactating sow feed intake.
• To provide strategies for maximizing nutrient intake to support milk production and reproductive efficiency.

Main Methods:

• Reviewing factors influencing sow feed intake, including environmental temperature, diet, water availability, and body condition.
• Discussing environmental control methods such as drip cooling, ventilation, and flooring.
• Considering biological factors like parity, genetics, litter size, and disease.

Main Results:

• Decreasing effective environmental temperature, increasing diet nutrient density, ensuring feed and water access, and managing gestation weight gain enhance feed intake.
• Environmental controls like drip cooling and ventilation help maintain sows within their thermoneutral zone.
• Individual sow factors significantly impact feed intake, necessitating tailored management.

Conclusions:

• Optimizing lactating sow feed intake requires a multifaceted approach addressing environmental, dietary, and biological factors.
• Implementing appropriate management strategies can improve nutrient intake, leading to better milk production and reproductive outcomes.
• Farm-specific management plans are essential for maximizing sow performance and preventing reproductive issues.