{"id":"https://openalex.org/keywords/ractopamine","display_name":"ractopamine","description":"Ractopamine is a beta-adrenergic agonist used as a feed additive to promote lean growth in livestock, particularly pigs and cattle.","display_name_alternatives":[],"ids":{"openalex":"https://openalex.org/keywords/ractopamine","wikidata":"https://www.wikidata.org/wiki/Q722419"},"primary_topic":{"id":"https://openalex.org/T13338","display_name":"Pharmacological Effects and Assays","score":0.6384,"subfield":{"id":"https://openalex.org/subfields/1103","display_name":"Animal Science and Zoology"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},"topics":[{"id":"https://openalex.org/T13338","display_name":"Pharmacological Effects and Assays","score":0.6384,"subfield":{"id":"https://openalex.org/subfields/1103","display_name":"Animal Science and Zoology"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10152","display_name":"Animal Nutrition and Physiology","score":0.0718,"subfield":{"id":"https://openalex.org/subfields/1103","display_name":"Animal Science and Zoology"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"works_count":1846,"cited_by_count":21676,"works_api_url":"https://api.openalex.org/works?filter=keywords.id:keywords/ractopamine","updated_date":"2026-10-22T04:07:25","created_date":"2022-04-12T19:38:12"}