Effect of switch trimming on udder and teat hygiene of dairy cows
| Autor: | Maria E. Prado, R.A. Black, Heather D Ingle, Christa A. Rice, Sarah Z Childers, Peter D. Krawczel, Nicole L. Eberhart |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Tail animal structures media_common.quotation_subject Biology Animal Welfare Bacterial counts Milking 03 medical and health sciences fluids and secretions Animal science Mammary Glands Animal Enterobacteriaceae Hygiene Animal welfare medicine Animals Lactation Udder Animal Husbandry Dairy cattle media_common General Veterinary 0402 animal and dairy science food and beverages Streptococcus 04 agricultural and veterinary sciences 040201 dairy & animal science Coliform bacteria Dairying 030104 developmental biology medicine.anatomical_structure Animal Science and Zoology Trimming Cattle Female |
| Zdroj: | Journal of applied animal welfare science : JAAWS. 21(3) |
| ISSN: | 1532-7604 |
| Popis: | The study objective was to determine the effects of trimming the switch of dairy cows on teat-end bacterial counts and udder hygiene scores. Cows (n = 102) were blocked by days in milk, milk production, and parity and then assigned to (a) treatment (trimming of their tail switch using a commercially available trimmer), or (b) control (unaltered tails). Udder hygiene was recorded for cows on Days 0 (initiation of treatment), 32, and 64. A subset of cows (n = 21) was used to assess Streptococci and coliform bacterial populations on teat ends. Samples were collected by swabbing the left front teat end before milking on Days 0, 32, and 64 and were cultured within 24 hr of sampling. The GLIMMIX and PROC Frequency (SAS Version 9.3) were used to analyze data. There were no treatment effects of switch trimming on hygiene scores or bacterial counts. These findings suggest that udder hygiene may not be driven by tail status. Environmental and management factors, such as cleanliness, stall bedding, and stall design, may be more important contributing factors in maintaining udder health. |
| Databáze: | OpenAIRE |
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