TY - JOUR U1 - Wissenschaftlicher Artikel A1 - Köllmann, Katharina A1 - Wente, Nicole A1 - Zhang, Yanchao A1 - Krömker, Volker T1 - Investigations on Transfer of Pathogens between Foster Cows and Calves during the Suckling Period JF - Animals N2 - To date, there have been few studies on the health effects of foster cow systems, including the transmission of mastitis-associated pathogens during suckling. The present study aimed to compare the pathogens detected in the mammary glands of the foster cow with those in the oral cavities of the associated foster calves and to evaluate the resulting consequences for udder health, calf health and internal biosecurity. Quarter milk sampling of 99 foster cows from an organic dairy farm was conducted twice during the foster period. Oral cavity swabs were taken from 345 foster calves. Furthermore, quarter milk samples were collected from 124 biological dams to investigate possible transmission to the foster cows via the suckling calves. All samples were microbiologically examined and confirmed by MALDI-TOF (matrix-assisted laser desorption time-offlight mass-spectrometry). Using RAPD-PCR (randomly amplified polymorphic DNA polymerase chain reaction), strain similarities were detected for Pasteurella multocida, Staphylococcus aureus, S. sciuri and Streptococcus (Sc.) suis. Transmission of P. multocida and S. aureus probably occurred during suckling. For S. sciuri and Sc. suis, environmental origins were assumed. Transmission from dam to foster cow with the suckling calf as vector could not be clearly demonstrated. KW - foster cows KW - Kälberaufzucht KW - Säugen KW - Euter KW - Pasteurella multocida KW - calf rearing KW - suckling KW - udder health Y1 - 2021 UN - https://nbn-resolving.org/urn:nbn:de:bsz:960-opus4-20885 U6 - https://doi.org/10.25968/opus-2088 DO - https://doi.org/10.25968/opus-2088 N1 - Gefördert mit Mitteln des Publikationsfonds der Bibliothek der Hochschule Hannover. VL - 11 IS - 9 ER -