The prophylactic effect of a teat sealer on bovine mastitis during the dry period and the following lactation

Woolford, M. W.; Williamson, J.; Day, A.M.; Copeman, P. J. A.

doi:10.1080/00480169.1998.36044

Cited by 100 publications

(117 citation statements)

References 5 publications

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“…While considering clinical mastitis at animal level; 4 animals (40%) out of 10 had clinical mastitis. Our observations are in consonanace with those reported by Woolford et al (1998), who observed 2.3 and 13% infection at calving (at quarter level), respectively in cows with and without DCT. McDougall (2010) observed that 9% of uninfected and untreated glands developed new intra-mammary infections over the dry period in pasture-grazed cows, compared to 2-2.5% protected by antibiotic DCT.…”

Section: Results and Discussion Incidence Of Clinical Mastitissupporting

confidence: 81%

Effect of dry cow therapy on incidence of clinical mastitis,milk yield and composition in crossbred cows

Tiwari

Mohanty

Patbandha

et al. 2016

IJAR

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Mastitis is considered as one of the important production disease in dairy cows which incurs huge economic losses to dairy industry, despite considerable efforts has been dedicated to solve it for the last two decades. In the present study, the impact of dry cow therapy (DCT) on incidence of clinical mastitis, milk yield and composition in crossbred cows was studied. About 20 healthy crossbred cows were selected at dry-off and randomly allotted either to control or treatment group. Daily milk yield of cows was recorded up to 45 days post-partum and fortnightly separate quarter wise milk samples were collected for estimation of milk composition. While no quarter in the treatment group showed clinical mastitis, 33.33% of quarters in control group showed clinical mastitis within 45 days post-partum. Milk production increased by 9.71, 8.40 and 18.18% during first, second and third fortnight with overall value 11.84% during the entire 45 days post-calving period in DCT treated cows compared to control group. Also, the overall fat-corrected milk, solid-corrected milk and energy-corrected milk production following 45 days post-partum increased significantly (P<0.05) by 22.71, 23.70 and 22.80%, respectively in treated group than control group. However, overall mean milk components such as fat, protein, lactose, SNF and TS remained similar between treatment and control groups. Taken together, the above results indicated that DCT increased milk yield by reducing incidence of clinical mastitis during early lactation.

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Section: Results and Discussion Incidence Of Clinical Mastitissupporting

confidence: 81%

Effect of dry cow therapy on incidence of clinical mastitis,milk yield and composition in crossbred cows

Tiwari

Mohanty

Patbandha

et al. 2016

IJAR

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“…The data from these trials were evaluated for incidence of new intramammary infections, clinical infections and cure rate of existing infections. These data were also compared with data from the literature (Neave et al 1950 ;Eberhart & Buckalew, 1972 ;Woolford et al 1998;Hassan et al 1999).…”

Section: Probability Estimationmentioning

confidence: 98%

“…Again, cows were randomly allocated within cell count groups to treatment groups. Data from the literature were used as both a source and to confirm some of the physiological effects and economic values that were derived from the above two studies (Neave et al 1950 ;Eberhart & Buckalew, 1972 ;Houben et al 1993 ;Houben et al 1994 ;Woolford et al 1998;Hassan et al 1999;Yalcin et al 1999;Yalcin & Stott, 2000 ;Huxley et al 2002). Data were adjusted where possible for the UK situation and values are in pounds sterling.…”

Section: Probability Estimationmentioning

confidence: 99%

“…However, dry cow antibiotics may not be the most effective control measure against Enterobacteriacae (Smith & Hogan, 1993;Bradley & Green, 2000). Use of a nonantibiotic intramammary teat sealant was as effective as an antibiotic at drying off in prophylaxis (Woolford et al 1998;Berry & Hillerton, 2002a;Huxley et al 2002). A reduction in new intramammary infections at calving due to Enterobacteriacae was found in cows treated with the internal teat sealant compared with those treated with dry cow antibiotic (Huxley et al 2002).…”

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confidence: 93%

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Decision tree analysis to evaluate dry cow strategies under UK conditions

Berry

Hogeveen

Hillerton

2004

Journal of Dairy Research

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Economic decisions on animal health strategies address the cost benefit aspect along with animal welfare and public health concerns. Using decision tree analysis at an individual cow level has highlighted that there is little economic difference between the use of either dry cow antibiotic or an internal teat sealant compared with no treatmnet in preventing a new intra mammary infection in a cow free of infection in all quarters of the mammary gland at drying off.However, a potential net loss of over £20 per cow might occur if the uninfected cow was left untreated. The only economically viable option is antibiotic treatment, for a cow with one or more quarters infected at drying off, although a loss might still be incurred depending on the pathogen concerned and the cure rates achievable.A net loss was found for cows with quarters infected with Corynebacterium spp. at drying off, for both the teat sealant and untreated groups (£22 and £48 respectively) with only antibiotic treated cows showing a financial gain. Combinations of antibiotic of dry cow treatment and teat sealant are in increasingly common use based on enhanced prophylaxis. The cost benefit analysis of this combination suggests financial viability under certain circumstances. 7S0 Mastitis in dairy production

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“…This is similar to previous reports on the incidence of new IMI and prevalence of Strep. uberis in the dry period (Woolford et al, 1998;Berry and Hillerton, 2002). Up to 50% of enterobacterial CM cases that occur within the first 100 DIM arise in quarters that were already infected during the dry period (Bradley and Green, 2000).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the use of dry cow antibiotics in low somatic cell count cows

Scherpenzeel

Uijl

Schaik

et al. 2014

Journal of Dairy Science

104

125

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The goal of dry cow therapy (DCT) is to reduce the prevalence of intramammary infections (IMI) by eliminating existing IMI at drying off and preventing new IMI from occurring during the dry period. Due to public health concerns, however, preventive use of antibiotics has become questionable. This study evaluated selective DCT in 1,657 cows with low somatic cell count (SCC) at the last milk recording before drying off in 97 Dutch dairy herds. Low SCC was defined as <150,000 cells/mL for primiparous and <250,000 cells/ mL for multiparous cows. A split-udder design was used in which 2 quarters of each cow were treated with dry cow antibiotics and the other 2 quarters remained as untreated controls. The effect of DCT on clinical mastitis (CM), bacteriological status, SCC, and antibiotic use were determined at the quarter level using logistic regression and chi-squared tests. The incidence rate of CM was found to be 1.7 times (95% confidence interval = 1.4-2.1) higher in quarters dried off without antibiotics as compared with quarters dried off with antibiotics. Streptococcus uberis was the predominant organism causing CM in both groups. Somatic cell count at calving and 14 d in milk was significantly higher in quarters dried off without antibiotics (772,000 and 46,000 cells/mL, respectively) as compared with the quarters dried off with antibiotics (578,000 and 30,000 cells/mL, respectively). Quarters with an elevated SCC at drying off and quarters with a positive culture for major pathogens at drying off had a higher risk for an SCC above 200,000 cells/mL at 14 d in milk as compared with quarters with a low SCC at drying off and quarters with a negative culture for major pathogens at drying off. For quarters that were culture-positive for major pathogens at drying off, a trend for a higher risk on CM was also found. Selective DCT, not using DCT in cows that had a low SCC at the last milk recording before drying off, significantly increased the incidence rate of CM and SCC. The decrease in antibiotic use by drying off quarters without DCT was not compensated by an increase in antibiotic use for treating CM. Total antibiotic use related to mastitis was reduced by 85% in these quarters.

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The prophylactic effect of a teat sealer on bovine mastitis during the dry period and the following lactation

Cited by 100 publications

References 5 publications

Effect of dry cow therapy on incidence of clinical mastitis,milk yield and composition in crossbred cows

Effect of dry cow therapy on incidence of clinical mastitis,milk yield and composition in crossbred cows

Decision tree analysis to evaluate dry cow strategies under UK conditions

Evaluation of the use of dry cow antibiotics in low somatic cell count cows

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