{"doi":"10.1530/jrf.0.0450037","title":"PLASMA PROGESTERONE, ANDROSTENEDIONE AND TESTOSTERONE CONCENTRATIONS IN FREEMARTIN HEIFERS","abstract":"<jats:title>Summary.</jats:title>\n                  <jats:p>Plasma concentrations of testosterone, androstenedione and progesterone in freemartins, and normal cyclic and non-cyclic heifers were studied. The plasma testosterone concentrations were in general &amp;lt;10 pg/ml in all animals. The mean androstenedione concentration of 28 pg/ml in 10- to 12-month-old freemartins was significantly lower than the mean of 58 to 60 pg/ml for normal 10- to 12-month-old heifers. At 24 months of age the mean androstenedione concentration in the freemartins had risen significantly to 65 pg/ml.</jats:p>","journal":"Reproduction","year":1975,"id":37636,"datarank":2.027772115802464,"base_score":2.9444389791664403,"endowment":2.9444389791664403,"self_citation_contribution":0.44166584687496613,"citation_network_contribution":1.5861062689274983,"self_endowment_contribution":0.44166584687496613,"citer_contribution":1.5861062689274983,"corpus_percentile":null,"corpus_rank":null,"citation_count":18,"citer_count":16,"citers_with_citation_signal":14,"citers_with_endowment":14,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":188211,"name":"N. F. CUNNINGHAM","orcid":null,"position":1,"is_corresponding":false},{"id":188212,"name":"P. G. MILLAR","orcid":null,"position":2,"is_corresponding":false},{"id":188209,"name":"N. SABA","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"base_score":2.9444389791664403,"endowment":2.9444389791664403,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"1195256","pmcid":null,"openalex_id":"https://openalex.org/W1967507320","authors":[],"funders":[],"total_grants":0,"fwci":1.1472,"citation_percentile":0.71253287,"influential_citations":4,"citation_trend":[{"year":2012,"count":1}],"oa_status":"bronze","license":"https://academic.oup.com/pages/standard-publication-reuse-rights","oa_locations":[{"url":"https://rep.bioscientifica.com/downloadpdf/journals/rep/45/1/jrf_45_1_006.pdf","host_type":"journal"},{"url":"https://rep.bioscientifica.com/downloadpdf/journals/rep/45/1/jrf_45_1_006.pdf","host_type":"BRONZE"},{"url":"https://rep.bioscientifica.com/downloadpdf/journals/rep/45/1/jrf_45_1_006.pdf","host_type":"publisher"},{"url":"https://academic.oup.com/reproduction/article-pdf/45/1/37/64930261/jrf_45_1_006.pdf","host_type":"publisher"},{"url":"https://doi.org/10.1530/jrf.0.0450037","host_type":"journal"},{"url":"https://pubmed.ncbi.nlm.nih.gov/1195256","host_type":"repository"},{"url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.534.6941","host_type":""}],"fields_of_study":["Pharmacological Effects and Assays","Reproductive Physiology in Livestock","Meat and Animal Product Quality","Biology","Medicine","Agricultural and Food Sciences","Age Factors","Androstenedione","Animals","Cattle","Freemartinism","Male","Progesterone","Testosterone"],"mesh_terms":["Age Factors","Androstenedione","Animals","Cattle","Freemartinism","Male","Progesterone","Testosterone"],"keywords":["Androstenedione","Testosterone (patch)","Internal medicine","Endocrinology","Plasma concentration","Chemistry","Biology","Medicine","Hormone","Androgen"],"sdg_mappings":[],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-06-10T20:23:01.752406Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}