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The libido of winter boars was poor, and the amount of ejaculate was relatively low compared with other seasons. The main reason was that the northern temperatures were too low, the pigs had less exercise, and the supply of green fodder was insufficient. In order to better exert the winter production performance of the boar and improve its semen quality, the following points should be made:
1, do a good job of insulation. It is best to keep the temperature within 15°C and reduce the temperature difference as much as possible. The plastic pigshed should be insulated as soon as possible, and the ventilation openings should be closed. The door must be hung with cotton curtains to avoid excessive humidity. When sunlight is strong at noon, it is fast. Ventilation.
2, increase daily intake. Due to the lower temperature in winter, the need for the maintenance of the pigs needs to be increased. Therefore, it is necessary to increase the amount of daily feeding 250-500g compared with other seasons.
3. In order to make up for the lack of winter green feed, each pig is fed 500g of fresh carrots every day.
4, add eggs. It has been proved that the feeding performance of two boiled eggs per pig per day has markedly improved the production performance of boars.
5, appropriate to reduce the exercise, to avoid pigs due to excessive temperature difference between inside and outside the resulting cold, but should improve the brushing strength of boars in order to promote blood circulation and improve disease resistance.
6, protect the boar testicular species. The winter boar testicles are stiff and chapped, so always wipe the testicles with a hot towel and apply Vaseline ointment when needed.
How to ensure that boars play a good performance in winter
Core Tip: The quality of boar semen quality is not only related to the individual differences in the boar itself, but also has an important relationship with the external environment. Winter boars have poor sexual desire and a small amount of ejaculation. In order to improve their production performance, insulation work should be done; daily food intake should be increased to increase energy; and appropriate exercise control should be performed.