Effectiveness of Intramammary Antibiotics, Internal Teat Sealants, or Both at Dry-Off in Dairy Cows: Clinical Mastitis and Culling Outcomes
Intramammary antibiotic (AB) and internal teat sealants (TS) infusion at dry-off have been used to prevent intramammary infections (IMI) in dairy cows during the dry period and reduce the risk of mastitis during the dry period and subsequent lactation. A randomized clinal trial was completed on eigh...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | Antibiotics |
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| Online Access: | https://www.mdpi.com/2079-6382/11/7/954 |
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| author | Sharif S. Aly Emmanuel Okello Wagdy R. ElAshmawy Deniece R. Williams Randall J. Anderson Paul Rossitto Karen Tonooka Kathy Glenn Betsy Karle Terry W. Lehenbauer |
| author_facet | Sharif S. Aly Emmanuel Okello Wagdy R. ElAshmawy Deniece R. Williams Randall J. Anderson Paul Rossitto Karen Tonooka Kathy Glenn Betsy Karle Terry W. Lehenbauer |
| author_sort | Sharif S. Aly |
| collection | DOAJ |
| description | Intramammary antibiotic (AB) and internal teat sealants (TS) infusion at dry-off have been used to prevent intramammary infections (IMI) in dairy cows during the dry period and reduce the risk of mastitis during the dry period and subsequent lactation. A randomized clinal trial was completed on eight California dairy herds to estimate the effects of different dry cow therapies (AB, TS, AB + TS or None) on clinical mastitis and culling. A total of 1273 cows were randomized to one of the four treatment groups over summer and winter seasons. For each enrolled cow, microbiological testing was done on quarter milk samples collected from the first detection of clinical mastitis within the first 150 days in milk (DIM) in the subsequent lactation. Statistical analysis was done using generalized linear mixed models. There were no significant differences in the odds of clinical mastitis or culling between cows treated with AB, TS, or AB + TS compared to the controls. Dry cow therapy with AB and/or TS had no statistically significant effect on clinical mastitis and cow culling during the first 150 DIM. |
| first_indexed | 2024-03-09T12:19:44Z |
| format | Article |
| id | doaj.art-4fdf4496407e4d2db6d17c26c7ee52b2 |
| institution | Directory Open Access Journal |
| issn | 2079-6382 |
| language | English |
| last_indexed | 2024-03-09T12:19:44Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Antibiotics |
| spelling | doaj.art-4fdf4496407e4d2db6d17c26c7ee52b22023-11-30T22:41:40ZengMDPI AGAntibiotics2079-63822022-07-0111795410.3390/antibiotics11070954Effectiveness of Intramammary Antibiotics, Internal Teat Sealants, or Both at Dry-Off in Dairy Cows: Clinical Mastitis and Culling OutcomesSharif S. Aly0Emmanuel Okello1Wagdy R. ElAshmawy2Deniece R. Williams3Randall J. Anderson4Paul Rossitto5Karen Tonooka6Kathy Glenn7Betsy Karle8Terry W. Lehenbauer9Veterinary Medicine Teaching and Research Center, School of Veterinary Medicine, University of California, Davis, Tulare, CA 93277, USAVeterinary Medicine Teaching and Research Center, School of Veterinary Medicine, University of California, Davis, Tulare, CA 93277, USAVeterinary Medicine Teaching and Research Center, School of Veterinary Medicine, University of California, Davis, Tulare, CA 93277, USAVeterinary Medicine Teaching and Research Center, School of Veterinary Medicine, University of California, Davis, Tulare, CA 93277, USACalifornia Department of Food and Agriculture, Animal Health Branch, Sacramento, CA 95814, USAVeterinary Medicine Teaching and Research Center, School of Veterinary Medicine, University of California, Davis, Tulare, CA 93277, USAVeterinary Medicine Teaching and Research Center, School of Veterinary Medicine, University of California, Davis, Tulare, CA 93277, USAVeterinary Medicine Teaching and Research Center, School of Veterinary Medicine, University of California, Davis, Tulare, CA 93277, USACooperative Extension, Division of Agriculture and Natural Resources, University of California, Orland, CA 95963, USAVeterinary Medicine Teaching and Research Center, School of Veterinary Medicine, University of California, Davis, Tulare, CA 93277, USAIntramammary antibiotic (AB) and internal teat sealants (TS) infusion at dry-off have been used to prevent intramammary infections (IMI) in dairy cows during the dry period and reduce the risk of mastitis during the dry period and subsequent lactation. A randomized clinal trial was completed on eight California dairy herds to estimate the effects of different dry cow therapies (AB, TS, AB + TS or None) on clinical mastitis and culling. A total of 1273 cows were randomized to one of the four treatment groups over summer and winter seasons. For each enrolled cow, microbiological testing was done on quarter milk samples collected from the first detection of clinical mastitis within the first 150 days in milk (DIM) in the subsequent lactation. Statistical analysis was done using generalized linear mixed models. There were no significant differences in the odds of clinical mastitis or culling between cows treated with AB, TS, or AB + TS compared to the controls. Dry cow therapy with AB and/or TS had no statistically significant effect on clinical mastitis and cow culling during the first 150 DIM.https://www.mdpi.com/2079-6382/11/7/954dry cow therapymastitiscullingsubclinical mastitisteat end scoreudder hygiene |
| spellingShingle | Sharif S. Aly Emmanuel Okello Wagdy R. ElAshmawy Deniece R. Williams Randall J. Anderson Paul Rossitto Karen Tonooka Kathy Glenn Betsy Karle Terry W. Lehenbauer Effectiveness of Intramammary Antibiotics, Internal Teat Sealants, or Both at Dry-Off in Dairy Cows: Clinical Mastitis and Culling Outcomes Antibiotics dry cow therapy mastitis culling subclinical mastitis teat end score udder hygiene |
| title | Effectiveness of Intramammary Antibiotics, Internal Teat Sealants, or Both at Dry-Off in Dairy Cows: Clinical Mastitis and Culling Outcomes |
| title_full | Effectiveness of Intramammary Antibiotics, Internal Teat Sealants, or Both at Dry-Off in Dairy Cows: Clinical Mastitis and Culling Outcomes |
| title_fullStr | Effectiveness of Intramammary Antibiotics, Internal Teat Sealants, or Both at Dry-Off in Dairy Cows: Clinical Mastitis and Culling Outcomes |
| title_full_unstemmed | Effectiveness of Intramammary Antibiotics, Internal Teat Sealants, or Both at Dry-Off in Dairy Cows: Clinical Mastitis and Culling Outcomes |
| title_short | Effectiveness of Intramammary Antibiotics, Internal Teat Sealants, or Both at Dry-Off in Dairy Cows: Clinical Mastitis and Culling Outcomes |
| title_sort | effectiveness of intramammary antibiotics internal teat sealants or both at dry off in dairy cows clinical mastitis and culling outcomes |
| topic | dry cow therapy mastitis culling subclinical mastitis teat end score udder hygiene |
| url | https://www.mdpi.com/2079-6382/11/7/954 |
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