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https://www.readbyqxmd.com/read/28992929/antibiotic-use-by-farmers-to-control-mastitis-as-influenced-by-health-advice-and-dairy-farming-systems
#1
A Poizat, F Bonnet-Beaugrand, A Rault, C Fourichon, N Bareille
Mastitis is a bacterial disease common in dairy farms. Although knowledge about mastitis and its optimal technical management and treatment is now available, some dairy farmers still use antibiotics in inappropriate ways. Antibiotic use by farmers can be influenced by personal restraints and motivations, but it can be assumed that external drivers are also influential. The main purpose of this article is thus to analyse the choices of antibiotic and alternative medicine use for mastitis treatment and investigate the possible influence of two unexplored external drivers in dairy farms: (i) the health advice offered to farmers by farm advisors and veterinarians, (ii) the dairy farming system, as defined by combining the market valuation chosen for the milk, the level of intensification, and the perceived pressure related to investments...
October 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28988520/a-comparison-of-the-effect-of-short-acting-and-long-acting-cloxacillin-based-dry-cow-therapy-on-somatic-cell-counts-after-calving-in-cows-also-given-internal-teat-sealants
#2
L K Whitfield, R A Laven
AIM: To compare, in cows treated with an internal teat sealant, the effect of short-acting and long-acting cloxacillin-based dry-cow therapy on somatic cell counts (SCC) after calving. METHODS: Cows from a spring-calving, pasture-based dairy farm in the Manawatu-Whanganui region of New Zealand were randomly allocated to receive either a short-acting cloxacillin and ampicillin dry-cow therapy and internal teat sealant (n=291) or a long-acting cloxacillin and ampicillin dry-cow therapy and internal teat sealant (n=288) at the end of lactation...
October 8, 2017: New Zealand Veterinary Journal
https://www.readbyqxmd.com/read/28987586/comparison-of-treatment-records-and-inventory-of-empty-drug-containers-to-quantify-antimicrobial-usage-in-dairy-herds
#3
Diego B Nobrega, Jeroen De Buck, S Ali Naqvi, Gang Liu, Sohail Naushad, Vineet Saini, Herman W Barkema
Assessment of antimicrobial use (AMU) is vital for interpreting the origin of changes in antimicrobial resistance (AMR). The objectives of the present study were to estimate the association between AMU determined using on-farm treatment records (TR) and inventory of empty drug containers (INV). Herds were selected to represent Canadian dairy farms. Producers were asked to record animal health events and treatments on a standard General Health Event form. For inventory data, 40-L receptacles were placed at various locations considered convenient to deposit all empty drug containers...
October 4, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28987571/field-trial-of-2-calcium-supplements-on-early-lactation-health-and-production-in-multiparous-holstein-cows
#4
Antonia R Domino, Helen C Korzec, Jessica A A McArt
Our objectives were to measure serum Ca concentrations in the first 48 h postpartum in cows supplemented with oral Ca or subcutaneous Ca and nonsupplemented cows and evaluate the effect of these treatments on the incidence of metritis, displaced abomasum, mastitis, and early lactation disease (any of the diseases milk fever, retained placenta, metritis, or displaced abomasum), removal from the herd, pregnancy to first insemination, and average daily milk yield for the first 10 wk of lactation. We conducted 2 experiments on 1 commercial herd in New York State...
October 4, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28984427/knowledge-gaps-and-research-priorities-in-staphylococcus-aureus-mastitis-control
#5
P Rainard, G Foucras, J R Fitzgerald, J L Watts, G Koop, J R Middleton
This study assessed knowledge gaps and suggested research priorities in the field of Staphylococcus aureus mastitis. Staphylococcus aureus infecting the mammary gland remains a major problem to the dairy industry worldwide because of its pathogenicity, contagiousness, persistence in the cow environment, colonization of skin or mucosal epithelia, and the poor curing efficacy of treatments. Staphylococcus aureus also constitutes a threat to public health due to food safety and antibiotic usage issues and the potential for bidirectional transmission of strains between humans and dairy animals (cows and small ruminants)...
October 6, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28941821/effect-of-group-size-and-health-status-on-behavior-and-feed-intake-of-multiparous-dairy-cows-in-early-lactation
#6
Margit Bak Jensen, Kathryn L Proudfoot
Dairy cows in early lactation are often housed in a large group, where they may have to compete for access to feed and space. However, a cow's ability to compete may be impaired due to production disease, and housing in a small group with minimal competition may be beneficial for cow welfare. The aim of this study was to investigate the effect of group size and health on social and feeding behavior of cows during the first 3 d after introduction to a new group. Data included 54 multiparous Holstein-Friesian cows that were moved from an individual maternity pen and individually joined an existing group pen for 6 (N6) or 24 cows (N24) on d 4 after calving...
September 20, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28934997/teatcups-with-automatic-valves-in-machine-milking-of-goats
#7
Alberto Manzur, José Ramón Díaz, Nemesio Fernández, Sebastià Balasch, Cristòfol Peris
This Research Paper addresses the hypothesis that using teatcups with automatic valves, without cutting off the vacuum prior to cluster removal, could increases the risk of mastitis and affect other milking variables on goats. A first trial used 46 intramammary infection (IMI)-free goats that had been milked with normal teatcups (without automatic valves) during a pre-experimental period of 8 ± 2 d postpartum. These animals were divided into two groups (n = 23), randomly assigning each group to teatcups with automatic valves (teatcups A) or without automatic valves (teatcups B) for a 20-week experimental period...
September 22, 2017: Journal of Dairy Research
https://www.readbyqxmd.com/read/28931582/steroids-administered-after-vacuum-assisted-biopsy-in-the-management-of-idiopathic-granulomatous-mastitis
#8
J Q Deng, L Yu, Y Yang, X J Feng, J Sun, J Liu, F S Fan, L Q Liao
AIMS: The aetiology and treatment options for idiopathic granulomatous mastitis (IGM) are controversial. The aim was to study the clinical and diagnostic features and discuss medical and surgical treatment for IGM in our patients. METHODS: Sixty-five patients who met the histological criteria for IGM were retrospectively studied. The diagnosis of IGM was confirmed using Mammotome (an ultrasound-guided, vacuum-assisted biopsy system), core needle biopsy, quadrantectomy or segmental resection...
October 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28926014/assessing-the-economic-impact-of-an-endemic-disease-the-case-of-mastitis
#9
H Hogeveen, M Van Der Voort
A large part of the world's resources are used to produce animal products. Efficient use of these resources is important to improve social well-being. Endemic animal diseases decrease production efficiency, because they require a higher level of input to produce the same amount of output or result in a lower output with the same amount of input. The optimal level of production with and without disease differs from farm to farm and depends on varying economic circumstances. Given these difficulties, making an accurate theoretical estimation of the economic impact of endemic diseases is challenging...
April 2017: Revue Scientifique et Technique
https://www.readbyqxmd.com/read/28919679/effects-of-intramammary-infusion-of-sage-salvia-officinalis-essential-oil-on-milk-somatic-cell-count-milk-composition-parameters-and-selected-hematology-and-serum-biochemical-parameters-in-awassi-sheep-with-subclinical-mastitis
#10
Myassar O Alekish, Zuhair B Ismail, Mofleh S Awawdeh, Shoroq Shatnawi
AIM: The aims of this study were to evaluate the effects of intramammary infusion of sage (Salvia officinalis) essential oil (EO) on milk somatic cell count (SCC), milk composition parameters and selected hematology and serum biochemical parameters in 20 Awassi ewes affected with subclinical mastitis. MATERIALS AND METHODS: The dried leaves of sage were used to extract the EO by hydrodistillation. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of sage EO against Staphylococcus aureus were determined by the broth dilution method...
August 2017: Veterinary World
https://www.readbyqxmd.com/read/28903881/factors-affecting-the-cost-effectiveness-of-on-farm-culture-prior-to-the-treatment-of-clinical-mastitis-in-dairy-cows
#11
P M Down, A J Bradley, J E Breen, M J Green
The objective of this study was to use probabilistic sensitivity analysis to evaluate the cost-effectiveness of using an on-farm culture (OFC) approach to the treatment of clinical mastitis in dairy cows and compare this to a 'standard' treatment approach. A specific aim was to identify the herd circumstances under which an OFC approach would be most likely to be cost-effective. A stochastic Monte Carlo model was developed to simulate 5000 cases of clinical mastitis at the cow level and to calculate the associated costs simultaneously when treated according to 2 different treatment protocols; i) a 'conventional' approach (3 tubes of intramammary antibiotic) and ii) an OFC programme, whereby cows are treated according to the results of OFC...
September 15, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28900682/treatment-of-staphylococcus-aureus-infections
#12
Michael Z David, Robert S Daum
Staphylococcus aureus, although generally identified as a commensal, is also a common cause of human bacterial infections, including of the skin and other soft tissues, bones, bloodstream, and respiratory tract. The history of S. aureus treatment is marked by the development of resistance to each new class of antistaphylococcal antimicrobial drugs, including the penicillins, sulfonamides, tetracyclines, glycopeptides, and others, complicating therapy. S. aureus isolates identified in the 1960s were sometimes resistant to methicillin, a ß-lactam antimicrobial active initially against a majority S...
September 13, 2017: Current Topics in Microbiology and Immunology
https://www.readbyqxmd.com/read/28890791/potential-of-phytoceuticals-to-affect-antibiotic-residue-detection-tests-in-cow-milk-in-a-randomised-trial
#13
Keena Ae Mullen, Erin Beasley, Julio Q Rizzo, Steven P Washburn, Ronald E Baynes, Sharon E Mason, Kevin L Anderson
Mastitis is a costly disease for dairy farmers. Some dairy farmers use herbal products, or phytoceuticals, to treat mastitis. Phytoceuticals have not been approved for this use by the United States Food and Drug Administration, and have not been tested to determine how they impact antibiotic residue detection testing. The current study tested the potential for phytoceuticals to cause positive results on two milk antibiotic residue screening tests, the Delvotest P and Charm SL Beta-lactam test, or to interfere with the detection of antibiotics by these tests...
2017: Veterinary Record Open
https://www.readbyqxmd.com/read/28873396/a-mouse-mastitis-model-to-study-the-effects-of-the-intramammary-infusion-of-a-food-grade-lactococcus-lactis-strain
#14
Cristina Camperio, Federica Armas, Elena Biasibetti, Paolo Frassanito, Carlo Giovannelli, Liliana Spuria, Claudia D'Agostino, Sabrina Tait, Maria Teresa Capucchio, Cinzia Marianelli
Lactococcus lactis is one of the most important microorganisms in the dairy industry and has "generally recognized as safe" (GRAS) status. L. lactis belongs to the group of lactic acid bacteria (LAB) and is encountered in a wide range of environments. Recently, the use of the intramammary infusion of a live culture of LAB has been investigated as a new antibiotic alternative for treating mastitis in dairy ruminants. Controversial results are described in literature regarding its efficacy and safety. In this study we conducted in-depth investigation of the mammary gland immune response induced by intramammary inoculum of a live culture of L...
2017: PloS One
https://www.readbyqxmd.com/read/28869568/medicinal-plants-based-products-tested-on-pathogens-isolated-from-mastitis-milk
#15
Claudia Pașca, Liviu Mărghitaș, Daniel Dezmirean, Otilia Bobiș, Victorița Bonta, Flore Chirilă, Ioana Matei, Nicodim Fiț
Bovine mastitis a major disease that is commonly associated with bacterial infection. The common treatment is with antibiotics administered intramammary into infected quarters of the udder. The excessive use of antibiotics leads to multidrug resistance and associated risks for human health. In this context, the search for alternative drugs based on plants has become a priority in livestock medicine. These products have a low manufacturing cost and no reports of antimicrobial resistance to these have been documented...
September 4, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28856149/is-idiopathic-granulomatous-mastitis-a-surgical-disease-the-jury-is-still-out
#16
Demetrios Moris, Christos Damaskos, Spyridon Davakis, Michail Vailas, Nikolaos Garmpis, Eleftherios Spartalis, Michael Kontos, Konstantinos Kontzoglou
Idiopathic granulomatous mastitis (IGM), is a rare entity of chronic inflammatory disorder of the breast of unknown etiology. Very few cases have been described so far, almost exclusively in women. Here we describe a case of IGM in a 53-year-old man presented with a right breast mass, progressively enlarging during the last 6 months. Due to the findings of clinical examination and CT-scan, the suspicion for a potentially malignant lesion was given and the decision for surgical resection was made. Microscopic analysis of the specimen showed non-caseating granulomas around mammary lobules, findings compatible with IGM...
August 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28851643/structure-chaperone-like-activity-and-allergenicity-profile-of-bovine-caseins-upon-peroxynitrite-modification-new-evidences-underlying-mastitis-pathomechanisms
#17
Tanaz Sadeghian, Zohreh Tavaf, Ahmad Oryan, Raheleh Shokouhi, Zahra Pourpak, Ali Akbar Moosavi-Movahedi, Reza Yousefi
Mastitis, an inflammatory reaction frequently develops in response to intra-mammary bacterial infection‌‌, may induce the generation of peroxynitrite (PON)‌ which is a highly potent reactive oxygen and nitrogen species. Caseins as the intrinsically unfolded proteins seem feasible substrates to react with PON. Therefore, in the current study, structural and functional aspects of both β-casein (β-CN) and whole casein fraction (WCF) were evaluated after PON modification, using a variety of techniques. Modification of the bovine caseins with PON results in an important enhancement in the carbonyl, nitrotryptophan, nitrotyrosine and dityrosine content of these proteins‌...
August 26, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28831211/screening-method-for-staphylococcus-aureus-identification-in-subclinical-bovine-mastitis-from-dairy-farms
#18
Natapol Pumipuntu, Suphang Kulpeanprasit, Sirijan Santajit, Witawat Tunyong, Thida Kong-Ngoen, Woranich Hinthong, Nitaya Indrawattana
BACKGROUND: Staphylococcus aureus is one of the most important contagious bacteria causing subclinical bovine mastitis. This bacterial infection is commonly identified by determine the pathogen in bovine milk samples through conventional technique including coagulase test. However, this test has several disadvantages as low sensitivity, risk of biohazard, cost expensive, and limited preparation especially in local area. AIM: Aim of this study was to compare and assess the screening method, Mannitol fermentation test (Mannitol salt agar [MSA]), and deoxyribonuclease (DNase) test, for S...
July 2017: Veterinary World
https://www.readbyqxmd.com/read/28815847/mastitis-treatment-reduction-in-antibiotic-usage-in-dairy-cows
#19
REVIEW
V Krömker, S Leimbach
Animal-friendly, economical, resource-saving milk production provides the basis for sustained consumer acceptance. Bovine mastitis plays a decisive role in the dairy industry-disturbing animal health and welfare and causing considerable economic losses on the other hand. Currently, antimicrobial treatment is indispensable to keep bovine udder health, animal welfare and economic aspects in balance. On the contrary, emergence and spread of antimicrobial resistance (AMR) is an urgent matter of particular public interest, and as a consequence, antimicrobial usage (AMU) in production livestock is a critically discussed subject...
August 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28808353/milk-microbiome-and-bacterial-load-following-dry-cow-therapy-without-antibiotics-in-dairy-cows-with-healthy-mammary-gland
#20
Erika C R Bonsaglia, Marilia S Gomes, Igor F Canisso, Ziyao Zhou, Svetlana F Lima, Vera L M Rall, Georgios Oikonomou, Rodrigo C Bicalho, Fabio S Lima
Preventive infusion of antibiotics in the mammary gland of cows consumes 11 tons/year of medically relevant antimicrobials, yet, this practice might not be critical to prevent new infections in the healthy mammary gland of cows. Here, we used next-generation sequencing and quantitative real-time PCR to determine the impact of dry cow therapy without antibiotics on milk microbiome and bacterial load, respectively. Cows diagnosed as negative for mastitis at dry off were randomly allocated to receive antibiotic (intramammary ceftiofur hydrochloride) and teat sealant or just teat sealant...
August 14, 2017: Scientific Reports
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