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Management program for improving sow and gilt performance by feeding dichlorvos.

D G Siers, M A Schooley, L J Brown

American Journal of Veterinary Research

|December 1, 1977

Summary

Feeding sows dichlorvos during late gestation significantly improved litter performance. Treated litters showed higher survival rates and increased weights from birth to market.

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Area of Science:

Animal Science
Veterinary Medicine
Reproductive Biology

Background:

Optimizing sow productivity is crucial for the swine industry.
Late gestation is a critical period influencing fetal development and subsequent litter performance.

Purpose of the Study:

To evaluate the impact of slow-release dichlorvos supplementation in late gestation on sow and litter performance.
To assess the effects on key productivity metrics including litter survival and growth rates.

Main Methods:

Sows received a daily dose of 1,000 mg of dichlorvos via a slow-release formulation for the final 30 days of gestation.
Performance of litters from treated sows was compared to a control group.

Main Results:

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Dichlorvos treatment significantly improved litter performance (P < 0.01).

Key improvements included a 2.3% increase in pigs born alive per litter and a 9.6% increase in pig birth weights.

Litters from treated sows exhibited enhanced survival rates and improved growth, with overall litter weights being 11.6%, 16.5%, and 12.4% higher at birth, weaning, and market, respectively.

Conclusions:

Supplementation with slow-release dichlorvos during late gestation is an effective strategy to enhance sow productivity.
The treatment positively impacts multiple aspects of litter performance, from birth survival to market weight, indicating a significant benefit for swine production.