{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T17:19:27Z","timestamp":1787678367348,"version":"build-2784847793"},"reference-count":8,"publisher":"Wiley","issue":"19","license":[{"start":{"date-parts":[[1999,11,6]],"date-time":"1999-11-06T00:00:00Z","timestamp":941846400000},"content-version":"vor","delay-in-days":5,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Veterinary Record"],"published-print":{"date-parts":[[1999,11]]},"abstract":"<jats:p>\n                    Leptospiral infection has been reported in calves which were either stillbom or dead from perinatal weak calf syndrome; 356 such calves were examined for evidence of associations between leptospiral infection and macroscopic, histological and microbiological findings, and the parity of the dam. Calves in which leptospiral antigen was detected in the placenta were significantly lighter by an average of 6 to 10\u00a0kg than calves with no antigen in the placenta. Calves infected with\n                    <jats:italic>Leptospira<\/jats:italic>\n                    were more likely to be infected by\n                    <jats:italic>Actinomyces pyogenes<\/jats:italic>\n                    or\n                    <jats:italic>Bacllus<\/jats:italic>\n                    species. No other significant associations were detected. The adrenal gland, lung and placenta were the most useful organs to examine for leptospiral antigen. The placenta was the only antigen\u2010positive tissue 8.9 per cent of the calves submitted with their placenta.\n                  <\/jats:p>","DOI":"10.1136\/vr.145.19.539","type":"journal-article","created":{"date-parts":[[2010,10,5]],"date-time":"2010-10-05T02:05:51Z","timestamp":1286244351000},"page":"539-542","source":"Crossref","is-referenced-by-count":29,"title":["Stillbirth\/perinatal weak calf syndrome: a study of calves infected with\n                    <i>Leptospira<\/i>"],"prefix":"10.1002","volume":"145","author":[{"given":"A.","family":"Smyth","sequence":"first","affiliation":[{"name":"Veterinary Sciences Division Department of Agriculture for Northern Ireland Stoney Road Belfast BT4 3SD"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D. A.","family":"Fitzpatrick","sequence":"additional","affiliation":[{"name":"Biometrics Division Department of Agriculture for Northern Ireland New Forge Lane Belfast"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"W. A.","family":"Ellis","sequence":"additional","affiliation":[{"name":"Veterinary Sciences Division Department of Agriculture for Northern Ireland Stoney Road Belfast BT4 3SD"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[1999,11,6]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/0378-1135(86)90031-3"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1136\/vr.110.7.147"},{"key":"e_1_2_6_4_1","volume-title":"GENSTAT 5 Release 3 Reference Manual","author":"GENSTAT 5 COMMITTEE","year":"1994"},{"key":"e_1_2_6_5_1","first-page":"406","volume-title":"Pathology of Domestic Animals","author":"KENNEDY P. C.","year":"1993"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/0021-9975(78)90052-X"},{"key":"e_1_2_6_7_1","first-page":"571","article-title":"Lack of effect of selenium supplementation on the incidence of weak calves in dairy herds","volume":"119","author":"RICE D. A.","year":"1986","journal-title":"Veterinary Record"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1136\/vr.139.1.11"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1136\/vr.130.12.237"}],"container-title":["Veterinary Record"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1136%2Fvr.145.19.539","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/bvajournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1136\/vr.145.19.539","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,26]],"date-time":"2025-10-26T11:06:36Z","timestamp":1761476796000},"score":1,"resource":{"primary":{"URL":"https:\/\/bvajournals.onlinelibrary.wiley.com\/doi\/10.1136\/vr.145.19.539"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1999,11]]},"references-count":8,"journal-issue":{"issue":"19","published-print":{"date-parts":[[1999,11]]}},"alternative-id":["10.1136\/vr.145.19.539"],"URL":"https:\/\/doi.org\/10.1136\/vr.145.19.539","archive":["Portico"],"relation":{},"ISSN":["0042-4900","2042-7670"],"issn-type":[{"value":"0042-4900","type":"print"},{"value":"2042-7670","type":"electronic"}],"subject":[],"published":{"date-parts":[[1999,11]]}}}