96123 20240123082600.0 doi 10.3390/ani10101851 sideral 120703 ART-2020-120703 eng Lacasta, D. Universidad de Zaragoza (orcid)0000-0002-7822-6646 Anaplasmosis outbreak in lambs: First report causing carcass condemnation 2020 Access copy available to the general public Unrestricted In spring and summer 2020, six outbreaks of condemnation of jaundiced lamb carcasses were diagnosed in different farms in Aragón region, Spain. Anaplasma ovis was identified in all affected farms. Four hundred and ninety-two lambs from two affected farms were more closely examined. Clinical examination, haematologies, biochemistries, histopathology and microbiological and molecular analyses were performed. After slaughter, 34.84% of the lambs showed jaundiced carcasses and 79.64% presented splenomegaly at the abattoir. All tested lambs with icteric carcasses showed positive A. ovis PCR, although 72.72% of the unaffected lambs also tested positive. However, the bacterial load was significantly higher in the animals that showed jaundiced carcasses (Cq: 25.00 vs 26.16; p = 0.004). Moreover, all the tested lambs that showed severe anaemia were PCR positive. On the contrary, the PCR negative lambs did not show anaemia. Lambs that presented icteric carcasses displayed severe regenerative anaemia with significantly lower erythrocyte count (7.18 vs. 11.97), haematocrit (26.89 vs. 34.82) and haemoglobin (8.50 vs. 11.10) than unaffected lambs. Reticulocyte count (18.80 vs. 5.65) was also significantly increased in affected animals. This article describes a new disorder caused by Anaplasma ovis that is producing significant economic losses associated with the carcass condemnation of apparently healthy lamb. info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 2.752 2020 VETERINARY SCIENCES 19 / 146 = 0.13 2020 Q1 T1 AGRICULTURE, DAIRY & ANIMAL SCIENCE 13 / 63 = 0.206 2020 Q1 T1 0.583 2020 Veterinary (miscellaneous) 2020 Q1 Animal Science and Zoology 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Ferrer, L.M. Universidad de Zaragoza (orcid)0000-0003-0042-8800 Sanz, S. Labanda, R. González, J.M. Universidad de Zaragoza (orcid)0000-0002-4655-9171 Benito, A.Á. Ruiz, H. Rodríguez-Largo, A. Universidad de Zaragoza (orcid)0000-0002-2685-1730 Ramos, J.J. Universidad de Zaragoza (orcid)0000-0002-2724-2785 1009 773 Universidad de Zaragoza Dpto. Patología Animal Área Sanidad Animal 1009 617 Universidad de Zaragoza Dpto. Patología Animal Área Medicina y Cirugía Animal 10, 10 (2020), 1851 [9 pp] Animals (Basel) Animals 2076-2615 502442 http://zaguan.unizar.es/record/96123/files/texto_completo.pdf Versión publicada 464100 http://zaguan.unizar.es/record/96123/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:96123 articulos driver 2024-01-23-08:21:33 ARTICLE