Economic and epidemiological impact of different intervention strategies for subclinical and clinical mastitis

Gussmann, Maya Katrin; Steeneveld, W.; Kirkeby, Carsten; Hogeveen, H.; Farre, Michael; Halasa, Tariq Hisham Beshara

doi:10.1016/j.prevetmed.2019.03.001

Cited by 45 publications

(29 citation statements)

References 35 publications

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“…In humans, it is one of the most common causes of bacteremia, skin, and soft tissue infection [1,2]. In animals, it is one of the most prevalent causative agents of clinical and subclinical mastitis in dairy farms, causing approximately one-third of cases in cattle, resulting in significant economic losses [3]. In Algeria, research focuses on clinical disease, e.g., mastitis in sheep [4] and nasal carriage of S. aureus strains, such as the highly pathogenic clones ST80 or ST152 PVL+ [5,6].…”

Section: Introductionmentioning

confidence: 99%

Methicillin-Resistant Staphylococcus aureus (MRSA) in Poultry Species in Algeria: Long-Term Study on Prevalence and Antimicrobial Resistance

Benrabia

Hamdi

Shehata

et al. 2020

Veterinary Sciences

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Methicillin-resistant Staphylococcus aureus (MRSA) is a well-known pathogen with a serious impact on human and veterinary public health. To determine antibiotic resistance of MRSA in poultry, 4248 nasal swabs were collected from 840 poultry farms in 18 different Wilayas (provinces) of Algeria. Swabs were collected between 2011 and 2018 from breeding hens, laying hens, broilers, and turkeys. Identification was carried out by the classical culture methods, and the disc diffusion test was used to determine the antibiotic resistance patterns. S. aureus was isolated from 477 (56.8%) farms, and flock prevalence was 52.8%, 48.8%, 48.4%, and 75.6% in breeding hens, laying hens, broilers, and turkeys, respectively. MRSA was isolated from 252 (30%) farms and flock prevalence was 22%, 33.5%, 27.4%, and 36%, respectively. As expected, all MRSA isolates were resistant to cefoxitin, penicillin G, amoxicillin/clavulanic acid, and oxacillin. High levels of resistance were found for tetracycline (82.5%), erythromycin (70.6%), clindamycin (68.6%), and ciprofloxacin (50%). Almost all isolates were susceptible to vancomycin (100%) and mupirocin and rifampicin (99.2%), followed by chloramphenicol (82.3%), and gentamicin (76%). This moderate proportion of MRSA in poultry poses a considerable risk to public health. The results of this study highlight the need for control programs that encompass primary animal production and the food chain to mitigate contamination and spread of MRSA in the poultry industry of Algeria, and consequently to humans.

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Section: Introductionmentioning

confidence: 99%

Methicillin-Resistant Staphylococcus aureus (MRSA) in Poultry Species in Algeria: Long-Term Study on Prevalence and Antimicrobial Resistance

Benrabia

Hamdi

Shehata

et al. 2020

Veterinary Sciences

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“…On the other hand, the majority of environmental mastitis is caused by bacterial species present in the intestinal and faecal microbiota, such as Escherichia coli , Klebsiella sp., Enterobacter sp., Streptococcus uberis and Streptococcus dysgalactiae (El‐Sayed et al, ). The former bacterial species are more frequently associated with chronic inflammation and subclinical mastitis with high somatic cell counts (SCC) and drop in milk production whereas the latter most often cause acute inflammation and clinical mastitis, coupled with macroscopic alteration of the milk (Gussmann et al, ). Nevertheless several other bacterial species of environmental origin can also be associated with subclinical mastitis, such as different non‐ aureus staphylococci, nonclassical streptococci/enterococci or corynebacteria (Reyher et al, ; El‐Sayed et al, ).…”

Section: Introductionmentioning

confidence: 99%

Comparison of quantitative PCR and MALDI‐TOF mass spectrometry assays for identification of bacteria in milk samples from cows with subclinical mastitis

et al. 2019

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Aims: The objective of this study was to compare qualitatively and quantitatively the results of identification of the bacteria present in milk samples from cows with subclinical mastitis using multiplex qPCR assay and matrix-assisted laser desorption-ionization time of flight mass spectrometry (MALDI-TOF MS â ) after bacteriological growth. Methods and Results: A total of 182 samples were aseptically collected from 119 cows with high somatic cell counts (>2Á10 5 SCC per ml) on 11 farms in Belgium in 2014. The mutiplex qPCR assay was carried out on 350 µl of milk with the PathoProof â Complete-16kit. Ten microlitre of milk was streaked on Columbia blood agar and three selective agar plates. Growing colonies were identified by MALDI-TOF MS. Of the 182 samples, 90 gave positive results with either or both tests for one or two bacterial species/genera. Total qualitative agreement of the bacteria identified was observed in 41 mono-or bi-bacterial samples (46%) and partial agreement in 19 bi-bacterial samples at both or either tests (21%). The results of both tests on those mono-and bibacterial samples were not significantly different (McNemar test; P = 0Á395) with a fair agreement (Cohen's kappa test; k = 0Á375; P = 0Á055). Moreover, quantitative correlation between the qPCR intensity and the numbers of growing colonies was observed in half of the 60 samples with qualitative matching results. Conclusions: Both methods give identical qualitative and quantitative results with approximately a half and a quarter of the mono-and bi-bacterial samples respectively. Several reasons can explain the differences. The multiplex qPCR assay only targets the most important mammary gland pathogens and can detect DNA of bacteria both alive and dead. Conversely, bacteria only grow when alive and the MALDI-TOF MS databases do not include all bovine milkassociated bacterial species yet. Significance and Impact of the Study: This study further highlights the limitations and complementarity of the genetic and phenotypic tests for the identification of bacteria present in milk samples.

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“…Mastitis is well known as an endemic disease that has a significant economic loss in the dairy industry, especially in small farms (Getaneh et al 2017;Gussmann et al 2019). Mastitis may influence cows to yield less milk and reduced quality or even inconsumable milk (Huijps et al 2008).…”

Section: Introductionmentioning

confidence: 99%

“…One of the treatments that can be used for small farmers is the application of teat-dipping. An expert mentions that the application of teat-dipping could reduce the probability of subclinical mastitis and prevent the spread to other healthy cows (Gussmann et al 2019;van den Borne et al 2010). However, the application of teat-dipping will increase the costs of milk production from labor and medicine usage.…”

Section: Introductionmentioning

confidence: 99%

Partial Budgeting of the Application of Teat-dipping to Control Mastitis in Small Farms

Indrawan¹,

Sudarnika

Basri

et al. 2020

Acta Vet Indones

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Subclinical mastitis has a higher prevalence than clinical mastitis in many small farmers in Bogor city, and it could reach more than 80 percent. However, the application of teat-dipping could help small farms to control subclinical mastitis prevalence. The objective of this study was to measure the cost of teat-dipping application as subclinical mastitis control in small dairy farms. The partial budget was employed based on the experimental data collected in small dairy farms in Bogor. A number of cows were the basis of simulation for the mean of milk value and the application cost. The findings show an incentive for farmers to apply teat dipping in their farms. The incentive of teat dipping application could be improved to prevent sub-clinical mastitis infection and increase milk production.

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Economic and epidemiological impact of different intervention strategies for subclinical and clinical mastitis

Cited by 45 publications

References 35 publications

Methicillin-Resistant Staphylococcus aureus (MRSA) in Poultry Species in Algeria: Long-Term Study on Prevalence and Antimicrobial Resistance

Methicillin-Resistant Staphylococcus aureus (MRSA) in Poultry Species in Algeria: Long-Term Study on Prevalence and Antimicrobial Resistance

Comparison of quantitative PCR and MALDI‐TOF mass spectrometry assays for identification of bacteria in milk samples from cows with subclinical mastitis

Partial Budgeting of the Application of Teat-dipping to Control Mastitis in Small Farms

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