How to determine the structure of pigs scientifically?

1 year ago

The herd structure refers to the proportion of pigs belonging to different groups in the entire herd.

How to determine the structure of pigs scientifically?

The herd structure refers to the proportion of pigs belonging to different groups in the entire herd.

To ensure the smooth development of the pig farm, reduce the cost of raising the pigs, and increase the economic benefits of raising pigs, the herd structure must be determined scientifically and reasonably.

  1. The amount of basic sows to be reared must be determined on the basis of the farm's production tasks, that is, the number of slaughter pigs or the number of piglets provided. It is possible to produce 2 tires per head of basic sow, provide 8 to 10 piglets per litter, and push back the ratio of 96% to 98% of the survival rate during the finishing period.

Namely: Slaughter task / 97% = Number of bred piglets

Number of bred piglets/9 heads/2 births = number of basic sows

  1. The number of male boars can be calculated according to the proportion of males and females in the situation of females and sows in advance, 20-30, or the proportion of males and females in case of artificial insemination.

  2. The percentage of reserved male and female sows can be arranged according to 50% of the basic sows and breeding boars respectively. The elimination rate of basic sows and breeding boars is 25% – 30%. Therefore, the reserve of reserved pigs can be retained. The proportion can also be grasped on an annual basis or 1-2 times the number of basic sows to be eliminated and supplemented. Good quality young and middle-aged (1.5 - 4 years old) males and females should maintain 80% - 85% of the basic sow population. proportion.

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