Erratum to: Trop Anim Health Prod

DOI 10.1007/s11250-011-9789-1

The authors of the article “Vitamin and trace element supplementation in grazing dairy ewe during the dry season: effect on milk yield, composition, and clotting aptitude“ published in Tropical Animal Health and Production (2011) 43:955-960 DOI 10.1007/s11250-011-9789-1 would like to apologize for their omission of not mentioning that the content of the article is in part based on a translation of the article of Laudadio V. and Petrera F. (2004): Integrazione vitaminico-minerale nella pecora da latte al pascolo: effetti sulla produzione quanti-qualitativa di latte. Archivio Veterinario Italiano 55(6): 51-57, http://www.ismea.it/flex/AppData/Redational/Normative/pubnaz/20060327000100264.pdf. As a result of this, F. Petrera will be included in the author list as follows: Tufarelli V., Petrera F., Khan R.U., Laudadio V. (current affiliation of Dr Petrera: CRA: Consiglio per la Ricerca e la Sperimentazione in Agricoltura, Centro di ricerca per le produzioni foraggere e lattiero-casearie, Sede di Cremona).