Detailed Explanation of Methods and Technical Points for Retaining Ternary Sows for Breeding
This year, because pork prices have soared, the price of piglets has also been rising continuously. At present, the price of exotic binary sow piglets on the market is as high as more than 300 yuan, and many pig farmers are reluctant to spend that much, and are also afraid of buying problematic pigs. Therefore, in order to make money from pig farming, many pig farmers want to retain ternary sows for breeding. How exactly should this be done? Let's take a look together.
1. Careful selection and retention
Ternary sows have shortcomings such as unclear estrus, low success rate of mating, severe return to estrus, and poor maternal nature, while the quality of their offspring is uneven. Because they contain Duroc bloodlines, they grow quickly and are very prone to obesity. However, after many years of practice, piglets born to excellent sows can inherit certain high-quality genes. Therefore, when selecting sows to retain for breeding, you must be careful and meticulous, and select from multiple aspects. They should have a clean and delicate face, a broad back and a spacious body, strong limbs, 6 or more pairs of functional teats, quiet behavior, and a gentle temperament.
2. Fine management
The health management of ternary sows is very easily overlooked, so prevention and control of African swine fever must be done well. Drugs with the effect of enhancing the pig herd's non-specific immunity can be continuously added to the feed. Before mating, 2 rounds of deworming and basic immunization work must be completed. After 60 kg, use feed specially formulated for replacement gilts. After 80 kg, control feed intake, and ensure that the temperature and humidity of the raising environment are suitable. During the rearing period, estrus management should be strengthened. Methods such as boar stimulation, increased exercise, semi-stall feeding, and light stimulation can be used to stimulate estrus.
3. Precise nutrition
In order to ensure that the reproductive organs, intestines, and limbs and hooves of ternary sows can develop normally, and to ensure that they have sufficient physical strength, healthy intestines, and a solid skeleton when entering the reproductive period. First, farmers should promptly switch to feeding replacement gilt feed, and at the same time condition the nutrition, so as to ensure that ternary sows have sufficient nutrition for growth and development.
4. Precise improvement
During mating, rotational crossbreeding technology can be used: cross ternary sows with purebred Large White boars, then cross the female offspring that meet breeding standards with Duroc. In this way, excellent commercial pigs can be produced. This method is suitable for most farmers. Breeding technology can also be used: cross them with Duroc to produce offspring, continuously reducing the proportion of Duroc bloodline, and by the third generation they can be used for breeding. This method is suitable for pig farms with long-term breeding plans.
The above is an introduction to how to retain ternary sows for breeding. I hope it can help you. If you want to learn more related knowledge, please stay tuned to us.