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Effect of the Selective Dry Cow Therapy on Udder Health and Milk Microbiota
Recently, the use of antimicrobials on dairy farms has been significantly limited from both the legislative and consumer points of view. This study aims to check the efficacy of selective dry cow therapy (SDCT) versus blanket dry cow therapy (BDCT) on bovine udder in healthy animals. SDTC is when an...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10451862/ https://www.ncbi.nlm.nih.gov/pubmed/37627678 http://dx.doi.org/10.3390/antibiotics12081259 |
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author | Filippone Pavesi, Laura Pollera, Claudia Sala, Giulia Cremonesi, Paola Monistero, Valentina Biscarini, Filippo Bronzo, Valerio |
author_facet | Filippone Pavesi, Laura Pollera, Claudia Sala, Giulia Cremonesi, Paola Monistero, Valentina Biscarini, Filippo Bronzo, Valerio |
author_sort | Filippone Pavesi, Laura |
collection | PubMed |
description | Recently, the use of antimicrobials on dairy farms has been significantly limited from both the legislative and consumer points of view. This study aims to check the efficacy of selective dry cow therapy (SDCT) versus blanket dry cow therapy (BDCT) on bovine udder in healthy animals. SDTC is when an antibiotic is administered only to infected cows, compared with BDCT, where all cows receive an antimicrobial, regardless of their infection status. The milk samples were collected from enrolled Holstein Friesian cows 7 days before dry-off (T0) and 10 days after calving (T1) to assess somatic cell count (SCC), intramammary infections (IMIs), and milk microbiota variation. After pre-drying sampling, cows are randomly assigned to the following treatments: internal teat sealant alone (ITS; 24 cows), which is a treatment in a cow that does not receive antibiotics in SDTC, or in combination with intramammary antibiotic treatment (A+ITS; 22 cows). Non-statistically significant results are found between the two treatment groups at T1 for SCC, milk yield, and alpha diversity in milk microbiota. A statistically (p < 0.033) T1 IMI decrease is reported in the A+ITS group, and a significant beta diversity analysis is shown between the two timepoints (p = 0.009). This study confirms the possibility of selective drying without new IMI risk or increased SCC at calving, considering healthy cows without contagious infections and SCC values >200,000 cells/mL in the previous lactation. |
format | Online Article Text |
id | pubmed-10451862 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-104518622023-08-26 Effect of the Selective Dry Cow Therapy on Udder Health and Milk Microbiota Filippone Pavesi, Laura Pollera, Claudia Sala, Giulia Cremonesi, Paola Monistero, Valentina Biscarini, Filippo Bronzo, Valerio Antibiotics (Basel) Article Recently, the use of antimicrobials on dairy farms has been significantly limited from both the legislative and consumer points of view. This study aims to check the efficacy of selective dry cow therapy (SDCT) versus blanket dry cow therapy (BDCT) on bovine udder in healthy animals. SDTC is when an antibiotic is administered only to infected cows, compared with BDCT, where all cows receive an antimicrobial, regardless of their infection status. The milk samples were collected from enrolled Holstein Friesian cows 7 days before dry-off (T0) and 10 days after calving (T1) to assess somatic cell count (SCC), intramammary infections (IMIs), and milk microbiota variation. After pre-drying sampling, cows are randomly assigned to the following treatments: internal teat sealant alone (ITS; 24 cows), which is a treatment in a cow that does not receive antibiotics in SDTC, or in combination with intramammary antibiotic treatment (A+ITS; 22 cows). Non-statistically significant results are found between the two treatment groups at T1 for SCC, milk yield, and alpha diversity in milk microbiota. A statistically (p < 0.033) T1 IMI decrease is reported in the A+ITS group, and a significant beta diversity analysis is shown between the two timepoints (p = 0.009). This study confirms the possibility of selective drying without new IMI risk or increased SCC at calving, considering healthy cows without contagious infections and SCC values >200,000 cells/mL in the previous lactation. MDPI 2023-07-31 /pmc/articles/PMC10451862/ /pubmed/37627678 http://dx.doi.org/10.3390/antibiotics12081259 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Filippone Pavesi, Laura Pollera, Claudia Sala, Giulia Cremonesi, Paola Monistero, Valentina Biscarini, Filippo Bronzo, Valerio Effect of the Selective Dry Cow Therapy on Udder Health and Milk Microbiota |
title | Effect of the Selective Dry Cow Therapy on Udder Health and Milk Microbiota |
title_full | Effect of the Selective Dry Cow Therapy on Udder Health and Milk Microbiota |
title_fullStr | Effect of the Selective Dry Cow Therapy on Udder Health and Milk Microbiota |
title_full_unstemmed | Effect of the Selective Dry Cow Therapy on Udder Health and Milk Microbiota |
title_short | Effect of the Selective Dry Cow Therapy on Udder Health and Milk Microbiota |
title_sort | effect of the selective dry cow therapy on udder health and milk microbiota |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10451862/ https://www.ncbi.nlm.nih.gov/pubmed/37627678 http://dx.doi.org/10.3390/antibiotics12081259 |
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