LONGEVIDADE E DESEMPENHO DE MATRIZES - Dr. Bruno Silva

Key Takeaways

• Excessive growth in young sows, characterized by high weight at a young age, compromises bone structure and significantly increases the probability of early culling before the third parity.
• Relying solely on age or weight as independent targets for insemination is risky; producers must balance physiological maturity to ensure the long-term reproductive viability of the sow.
• Modern swine production has shifted from focusing merely on the number of piglets born to ensuring the efficiency and profitability of the finished market hogs delivered to the system.
• Heat stress during gestation negatively impacts the progeny, reducing lean meat yield by up to 40% and increasing behavioral issues like aggression and poor social interaction in the finishing phase.
• The high genetic potential of modern sows requires a holistic management approach, as current production practices are failing to keep pace with the biological needs of these animals.
• Annual sow mortality rates have surged from approximately 4% to over 20% in recent years, with a significant portion attributed to sudden death, signaling a crisis in animal welfare and management.
• Production stages are deeply interconnected; environmental and nutritional stressors applied to the sow have long-term consequences that manifest as immunological and performance challenges in the offspring.