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Feeding and breeding sows "Three tricks"
In the process of raising sows, it's essential to follow natural cycles and make the most of favorable conditions while avoiding unfavorable ones. By doing so, farmers can achieve better results in pig breeding. But how exactly can this be done? The following methods are introduced for reference by farmers, herdsmen, and professional pig breeders.
One effective approach is choosing the right season for farrowing. It has been proven that giving birth during cold winters or hot summers can be harmful to both sows and piglets, often leading to significant losses. Therefore, it's best to breed sows during spring and autumn when the temperature is moderate. For example, breeding from early November to early December will result in farrowing in March of the following year, while breeding from early May to early June will lead to farrowing in September. These two periods are considered the optimal seasons for raising healthy piglets. They also provide a good opportunity for sows to recover after weaning, which helps improve conception rates, litter size, and overall piglet growth. Large-scale farms with well-equipped farrowing houses may even consider year-round breeding to further enhance reproductive performance.
Another important aspect is the timely induction of estrus and ovulation. Ensuring that sows come into heat on time, ovulate properly, and are bred at the right moment is crucial for successful breeding and larger litters. In cases where sows experience estrus disorders due to hormonal imbalances or other factors, "tristimulus hormones" can be used as an effective solution. For sows that have been weaned for more than five days, injecting 2 ml of the triad hormone intramuscularly can help stimulate estrus, promote ovulation, and ensure timely mating.
After giving birth, sows are vulnerable to several postpartum diseases such as mastitis, metritis, vaginitis, and fever, which can lead to secondary pneumonia and even death. To prevent these issues, a preventive injection can be given shortly after birth. The recommended method is to administer a mixture of 10 ml of aminopyrine, 2 million units of penicillin, and 100 million units of streptomycin within 12 hours of farrowing. This should be injected intramuscularly behind the ear of the sow. This practice is highly effective in preventing the four major puerperal diseases and can significantly reduce mortality caused by secondary infections.