Landrace breeding method

Abstract

The invention relates to a landrace breeding method. The method comprises the following processing steps: (1) castrating piglets; (2) weaning the piglets; (3) when the pigs are 60-120 days old, feeding the pigs with a feed containing the following raw materials in parts by weight: 35 parts of wheat bran, 18 parts of pumpkin powder, 4.5 parts of bone powder, 11 parts of soybean cakes, 3 parts of red beans, 9 parts of rape seed cakes, 15 parts of brewer's grains, 2 parts of duck blood powder, 7 parts of vinegar residues, 5 parts of barley powder, 0.01 part of compound vitamin, 0.02 part of compound amino acid and 0.01 part of compound trace elements; (4) when the pigs are older than 121 days, feeding the pigs with other compound feeds. The method has the beneficial effects that the growth rate of the landrace can be further increased and the health care value of the pork can be improved by using different feeds and processing modes in the growing period of the landrace.

Description

technical field [0001] The invention belongs to the field of breeding, and in particular relates to a breeding method for Landrace pigs. Background technique [0002] Landrace pig originates in Denmark and is a world-renowned lean-meat pig breed. The main advantages are large litter size, fast growth and development, feed saving, high carcass lean meat rate, etc., but poor stress resistance and high nutritional requirements for feed. Landrace pork has excellent quality and high lean meat rate, and is an important meat-providing pig. However, Landrace pigs are weak in physique, poor in stress resistance, and prone to reproductive disorders and cracked hooves. [0003] Landrace pigs need to be castrated during the growth process to increase the growth rate of the pigs. However, within half a month to one month after castration, the growth will be slow, or even stop growing, and severe cases will cause infection and death. Contents of the invention [0004] The purpose of t...

AI Technical Summary

Problems solved by technology

The main advantages are large litter size, fast growth and development, feed saving, high carcass lean meat rate, etc., but poor stress resistance and high nutritional requirements for feed

Landrace pork has excellent quality and high lean meat percentage, and is an important meat-providing pig. However, Landrace pigs are weak in physique, poor in stress resistance, and prone to reproductive disorders and cracked hooves.

[0003] Landrace pigs need to be castrated during the growth process to increase the growth rate of the pigs. However, within half a month to one month after the castration treatment, the growth will be slow, or even stop growing, and severe cases will cause infection and death.