Swine bcr heavy-chain multiplex pcr primer and application thereof

Provided are a swine BCR heavy-chain multiplex PCR primer and application thereof; said multiplex PCR primer comprises an upstream primer and a downstream primer; said upstream primer is a nucleotide sequence as represented by SEQ ID NO. 1, and said downstream primer is a downstream primer group consisting of the nucleotide sequences represented by SEQ ID NOS. 2-6.