In the present protocol, the primers for the 1st PCR must be designed to amplify approximately 1 kb upstream and downstream flanking regions of the target region in the genome. Such long flanking sequences are necessary to improve the efficiency of homologous recombination.

The final economic benefit of pig breeding lies in the profit after the pig goes on the market. The economic benefit of a pig is in addition to sow sharing, vaccine, veterinary medicine, artificial labor, water and electricity, etc.

This product consists of Pediococcus lactis, Lactobacillus plantarum and its metabolites, montmorillonite powder, etc. It can effectively absorb and degrade mycotoxins in feed, especially for the most toxic and widely distributed aflatoxins.

A variety of complex, diverse, non-pathogenic microorganisms inhabit the rumen of healthy ruminants, including rumen bacteria, anaerobic fungi, archaea, and rumen protozoa.

Avian influenza is a kind of poultry infection syndrome caused by type A influenza virus, which seriously threatens the global breeding industry, human health and public health safety.

From the 1990s to the present, in our country’s pig production, pseudorabies pigs have been regarded as the most harmful viral disease.