Reference | Maynou2017a (10055)

Effects of feeding pasteurized waste milk to dairy calves on phenotypes and genotypes of antimicrobial resistance in fecal Escherichia coli isolates before and after weaning.


Maynou, G.; Migura-Garcia, L.; Chester-Jones, H.; Ziegler, D.; Bach, A.; Terré, M. (United States of America)

Journal of Dairy Science (2017)

Reference


The enrolled calves were selected from 3 commercial dairy operations in Minnesota at 3 ± 1.3 d of age. At the farm of origin, calves were offered at least 3 colostrum feedings of 3 to 4 L each within the first 24 h of life and thereafter 2 L of mixed transition milk twice daily. Upon arrival, calves were weighed and assigned to 1 of the 2 milk feeding treatments by farm of origin and BW(?): (1) calves fed nonmedicated all-milk protein milk replacer (MR) (26% CP, 31% fat, on a DM basis; Milk Products Inc., Chilton, WI) at a 12.5% DM concentration; (2) calves fed pasteurized waste milk (pWM) (28.4% CP, 30.1% fat, DM basis). From arrival to d 56 of study, calves were housed in individual pens. Calves were fed 0.34 kg of DM/feeding of their respective milk treatment twice daily from arrival to d 42, and once daily from d 43 to weaning at d 49.

Fecal samples of each calf were collected at arrival, at d 35 (preweaning), and at d 56 (postweaning) by inserting a sterile swab (Puritan HydraFlock, Puritan Diagnostics LLC, Guilford, ME) into the rectal cavity

AST Method: None

Reference explicitly reports AST breakpoints: True

Reference reports using a MIC table: False

Is Excluded: False

Country Sub-Region Sub-Region Detail
United States of America Other (Other) Minnesota
ID Note Resolution

Factors


Title Host Host Production Stage Description ROs
Calf management Cattle None Farm Calves fed pasteurized waste milk Vs. milk replacer 1
Calf management Cattle Pre-weaned Calves Farm Calves fed pasteurized waste milk Vs. milk replacer 9