Risk factors for clinical or subclinical mastitis following infusion of internal teat sealant alone at the end of lactation in cows with low somatic cell counts

References

• *Anonymous. SmartSAMM Guidelines and Technotes. https://www.dairynz.co.nz/animal/cow-health/mastitis/tools-and-resources/guidelines-and-technotes/ (accessed 22 July 2021). DairyNZ, Hamilton, NZ, 2020
   Google Scholar
• Dohoo IR, Leslie KE. Evaluation of changes in somatic cell counts as indicators of new intramammary infections. Preventive Veterinary Medicine 10, 225–37, 1991
   Web of Science ®Google Scholar
• Dufour S, Wellemans V, Roy J-P, Lacasse P, Ordonez-Iturriaga A, Francoz D. Non-antimicrobial approaches at drying-off for treating and preventing intramammary infections in dairy cows. Part 1. Meta-analyses of efficacy of using an internal teat sealant without a concomitant antimicrobial treatment. Animal Health Research Reviews 20, 86–97, 2019
   PubMed Web of Science ®Google Scholar
• Grohn YT, Eicker SW, Hertl JA. The association between previous 305-day milk yield and disease in New York state dairy cows. Journal of Dairy Science 78, 1693–702, 1995
   PubMed Web of Science ®Google Scholar
• Holdaway RJ, Holmes CW, Steffert IJ. A comparison of indirect methods for diagnosis of subclinical intramammary infection in lactating dairy-cows. 2. The discriminative ability of 8 parameters in foremilk from individual quarters and cows. Australian Journal of Dairy Technology 51, 72–8, 1996
   Google Scholar
• Kabera F, Dufour S, Keefe G, Roy J-P. An observational cohort study on persistency of internal teat sealant residues in milk after calving in dairy cows. Journal of Dairy Science 101, 6399–412, 2018
   PubMed Web of Science ®Google Scholar
• Kennedy BW, Sethar MS, Moxley JE, Downey BR. Heritability of somatic cell count and its relationship with milk yield and composition in Holsteins. Journal of Dairy Science 65, 843–7, 1982
   Web of Science ®Google Scholar
• McDermott MP, Erb HN, Natzke RP. Predictability by somatic cell counts related to prevalence of intramammary infection within herds. Journal of Dairy Science 65, 1535–9, 1982
   PubMed Web of Science ®Google Scholar
• McDougall S, Castle R. Cow-level risk factors for clinical mastitis in the dry period in cows treated with an internal teat sealant alone at the end of lactation. New Zealand Veterinary Journal 69, 327–336, 2021
   Web of Science ®Google Scholar
• McDougall S, Arthur DG, Bryan MA, Vermunt JJ, Weir AM. Clinical and bacteriological response to treatment of clinical mastitis with one of three intramammary antibiotics. New Zealand Veterinary Journal 55, 161–70, 2007
   PubMed Web of Science ®Google Scholar
• McDougall S, Williamson J, Gohary K, Lacy-Hulbert J. Detecting intramammary infection at the end of lactation in dairy cows. Journal of Dairy Science 104, 10232–49, 2021
   PubMed Web of Science ®Google Scholar
• *Mein GA, Neijenhuis F, Morgan WF, Reinemann DJ, Hillerton JE, Baines JR, Ohnstad I, Rasmussen MD, Timms L, Britt JS, et al. Evaluation of bovine teat conditions in commercial dairy herds 1. Non-infectious factors. Proceedings of the 2nd International Symposium on Mastitis and Milk Quality. Pp 347–51, 2001
   Google Scholar
• *Middleton JR, Fox LK, Pighetti G, Petersson-Wolfe C. Laboratory Handbook on Bovine Mastitis. 3rd Edtn. NMC, New Prague, MN, USA, 2017
   Google Scholar
• Oliver J, Dodd FH, Neave FK. Udder infections in the “dry period”: IV. The relationship between the new infection rate in the early dry period and the daily milk yield at drying-off when lactation was ended by either intermittent or abrupt cessation of milking. Journal of Dairy Research 23, 204–11, 1956
   Web of Science ®Google Scholar
• Petrovski KR, Williamson NB, Lopez-Villalobos N, Parkinson TJ, Tucker IG. Culture results from milk samples submitted to veterinary diagnostic laboratories from August 2003 to December 2006 in New Zealand. New Zealand Veterinary Journal 59, 317–322, 2011
   PubMed Web of Science ®Google Scholar
• Pinedo PJ, Fleming C, Risco CA. Events occurring during the previous lactation, the dry period, and peripartum as risk factors for early lactation mastitis in cows receiving 2 different intramammary dry cow therapies. Journal of Dairy Science 95, 7015–26, 2012
   PubMed Web of Science ®Google Scholar
• Rabiee AR, Lean IJ. The effect of internal teat sealant products (Teatseal and Orbeseal) on intramammary infection, clinical mastitis, and somatic cell counts in lactating dairy cows: a meta-analysis. Journal of Dairy Science 96, 6915–31, 2013
   PubMed Web of Science ®Google Scholar
• Schreiner DA, Ruegg PL. Relationship between udder and leg hygiene scores and subclinical mastitis. Journal of Dairy Science 86, 3460–5, 2003
   PubMed Web of Science ®Google Scholar
• Smith A, Neave FK, Dodd FH. Methods of reducing the incidence of udder infection in dry cows. The Veterinary Record 79, 233–6, 1966
   PubMed Web of Science ®Google Scholar
• Swets J. Measuring the accuracy of diagnostic systems. Science 240, 1285–93, 1988
   PubMed Web of Science ®Google Scholar
• Tucker CB, Lacy-Hulbert SJ, Webster JR. Effect of milking frequency and feeding level before and after dry off on dairy cattle behavior and udder characteristics. Journal of Dairy Science 92, 3194–203, 2009
   PubMed Web of Science ®Google Scholar
• Zobel G, Leslie K, Weary DM, von Keyserlingk MAG. Gradual cessation of milking reduces milk leakage and motivation to be milked in dairy cows at dry-off. Journal of Dairy Science 96, 5064–71, 2013
   PubMed Web of Science ®Google Scholar
• *Non-peer-reviewed
   Google Scholar