How to raise lean pigs

As the Spring Festival approaches, there will be an increase in favor of lean-type pigs in the market. Then, how to adopt a more appropriate method to cultivate lean-type pigs?

First of all, it is still the most crucial species. Breeding fine varieties is the basic guarantee for obtaining lean-type pigs and is a key factor in determining lean meat ratio. The lean meat percentage of fat-type pigs or native-type pigs is generally 38-45%, and the lean meat percentage of the offspring that crosses with superior breeders such as Duroc can reach 55%, and Duroc and Landrace are raised. A ternary hybrid pig produced by Yorkshire or other lean pigs has a lean meat percentage of more than 64%. Therefore, it is preferred to use binary and ternary hybrid pigs.

Secondly, to increase the protein level of feeds, the corresponding protein supply standards should be established according to the different stages of pig growth and development. When the live pigs start to eat, that is, when the body weight is 10-20 kg, the feed protein level should be 22-20%; when the growth period is 40-60 kg, the feed protein level should be 19-16%; when it reaches the fattening period, it is the weight At 60-90 kg, feed protein levels should be 16-14%, and it is necessary to adjust protein levels at this stage.

At the same time to change the feeding method. The control method should be adopted after the front is open and limited. Normally, the live weight is 60 kg before the feed is opened. With the limit of 60 kg, the feed must be restricted in the future. Generally, a limit of 10-15% is appropriate and green feed is added at the same time. Increasing the growth rate and feed utilization rate of pigs in the early stage of fattening can inhibit the growth of fat, save feed, etc., and increase the carcass lean meat percentage.

Finally, to comply with the requirements for regular slaughter, Vulgar said: “Pig long bones, middle pig long meats, big pig long oils”, in terms of the growth and development of pigs, the larger the body weight, the more fat, the lean percentage. The corresponding reduction in the amount of feed consumed by the unit weight gain is not economical. Therefore, the slaughter of pigs with a gross weight of 90 kg is considered to be the best plan, and even if the three-way crossbred pigs are slaughtered to a live weight of 110 kg, they will not reduce the carcass grade and may be more suitable for consumers. The lean, thin and faty meat requirements, but overall, the market's demand for lean pigs still dominates.

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