21 CFR 528.2000

§ 528.2000 Deletion of exon 7 of CD163 gene in domestic pigs.

United States · 21 CFR — Food and Drugs · Status: effective

Cite this

Citation: 21 CFR 528.2000, § 528.2000 Deletion of exon 7 of CD163 gene in domestic pigs, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/87677
Permanent ID: ys:prov:87677@1
SHA-256: 5c83ea29ed234edca6be5402f2570c9e0fdc3d8c2230810836c39b5c6fd639aa

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Full text

(a) Specifications. Deletion of one (heterozygous) or two (homozygous) copies of exon 7 of CD163 gene1(abbreviated CD163ΔE7) in domestic pigs (Sus scrofa domesticus). (b) Sponsor. See No. 086205 in § 510.600(c) of this chapter. (c) Conditions of use—(1) Intended use. Deletion of exon 7 of the CD163 gene in domestic pigs (Sus scrofa domesticus) is intended to confer resistance to porcine reproductive and respiratory syndrome virus (PRRSV) in homozygous pigs. Pigs carrying one or two copies of CD163DE7, and their offspring, are intended for breeding or to be used as sources of food.

Legislative history

This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.