1. Select gilts from the offspring of excellent male and female pigs: When selecting gilts for gilts, choose to understand the performance of their parents and their immediate blood relatives, from the high feed remuneration, fast weight gain, good meat quality, slaughter rate Highly maternity, good calving, strong milking ability, rapid growth and development of piglets, and significant weaning weight and adaptability are used for the selection of gilts from offspring.
2. Selection of gilts selected to stay cultivar characteristics: the body surface requirement is a clear-cut head, eyes bright, good motherhood, a smooth shoulder month, chest width and depth, back straight wide and long back, rear hips wide, muscle Plump, moderate limbs, firm and powerful, well-posed, well-balanced body parts, normal nipple development, more than 6 pairs of effective nipples, neatly arranged, moderately slender, short, moderate, distance equal, distinct features, sparse, short, shiny, smooth body , flexible.
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