Research progress and technical route of pig raising with body shape and appearance

The evaluation and improvement of the body shape and appearance of breeding pigs is an inseparable and important content in the breeding process. Because physical evaluation plays an important role in improving the appearance structure, body characteristics and service life of breeding pigs, especially in improving the structure and quality of limbs and hooves of breeding pigs.

Studies have proved that the shape and appearance of sows are highly related to their service life. In addition, the fruiting degree of body shape also indirectly affects the expected breeding objectives. This is especially important for the breeding of paternal pigs. It has been found that there is obvious correlation between some body shape and appearance characteristics of breeding pigs and the production performance of individuals or their offspring. For example, tall ("big") individuals generally grow faster, and compact individuals generally have a high lean meat rate.

To choose an ideal breeding pig, it should have corresponding breed characteristics and not be divorced from reality.