Managing Reproduction in Hyperprolific Sow Herds

Area of Science:

• Animal Science
• Reproductive Biology
• Swine Production

Background:

• Modern swine genotypes exhibit hyperprolificity, leading to larger litters.
• These hyperprolific sows possess distinct body and reproductive characteristics compared to older genotypes.
• Altered sow physiology necessitates updated management strategies for optimal reproductive efficiency.

Purpose of the Study:

• To review the primary care requirements and challenges in managing hyperprolific sows.
• To examine reproductive management across key stages: gilt selection, gestation, parturition, lactation, and weaning-estrus interval.
• To identify strategies for managing surplus piglets and highlight areas for future research.

Main Methods:

• Literature review synthesizing current knowledge on hyperprolific sow management.
• Analysis of challenges faced by sows and their piglets during different reproductive phases.
• Identification of successful management interventions and research gaps.

Main Results:

• Hyperprolific sows present unique physiological demands requiring tailored nutritional and environmental management.
• Piglet survival and growth during lactation are critical challenges, necessitating specific interventions for surplus piglets.
• The weaning-estrus interval in hyperprolific sows may be influenced by their demanding lactation performance.

Conclusions:

• Effective reproductive management of modern hyperprolific sows demands a comprehensive approach, addressing sow physiology and piglet needs.
• Further research is crucial to refine management protocols, optimize gilt selection, and enhance piglet development strategies.
• Adapting management practices is key to maximizing the genetic potential of hyperprolific swine populations.