نتایج جستجو برای: chronic mastitis
تعداد نتایج: 503704 فیلتر نتایج به سال:
Introduction Mastitis continues to be the most frequent and costly disease of dairy cattle. Financial losses due to mastitis occur for both subclinical and clinical stages of the disease. Losses caused by subclinical mastitis are well documented. Each doubling of SCC above 50,000 cells/ml results in a loss of 0.4 kg and 0.6 kg of milk per day in first lactation and older cows, respectively (Hor...
licensed dairy farms in the central region of fars province were randomly selected in order to participate in aseasonal prevalence study. a cross-sectional study was designed to determine prevalence at cow and quarterlevel based on clinical signs for clinical mastitis and indirect tests for subclinical mastitis. 6180 quarters from1545 dairy cows were tested by clinical examination and californi...
Current sensor systems are used to detect cows with clinical mastitis. Although, the perform well enough not negatively affect adoption of automatic milking systems, performance is far from perfect. An important advantage availability multiple measurements per day. By clearly defining need for detection subclinical mastitis (SCM) and (CM) farmers' management perspective, SCM CM may be improved....
BACKGROUND S. aureus is one of the main pathogens involved in ruminant mastitis worldwide. The severity of staphylococcal infection is highly variable, ranging from subclinical to gangrenous mastitis. This work represents an in-depth characterization of S. aureus mastitis isolates to identify bacterial factors involved in severity of mastitis infection. METHODOLOGY/PRINCIPAL FINDINGS We emplo...
Mastitis control is based upon adoption of preventive control strategies including good milking hygiene, the use of properly functioning milking equipment, provision of clean and dry housing areas, sound nutritional programs and proper identification and treatment of cows that are infected with subclinical and clinical mastitis. Worldwide, many dairy farmers have adopted these procedures and pr...
BACKGROUND The reported incidence of lactational mastitis varies greatly; the single highest reported incidence in the scientific literature is 33%. The purpose of this study was to collect data regarding incidence and experiences of lactational mastitis from women attending a meeting of lactation specialists and to compare findings in a similar population reported in 1990 by Riordan and Nichol...
Clinical and laboratory studies in an outbreak of Maedi-visna disease in a flock of sheep and goats were conducted. The clinical findings of the disease were loss of wool, dyspnea and coughing, progressive condition loss, exercise intolerance and chronic mastitis. Nervous signs were developed later and were characterized by gait abnormalities of the hind limbs, ataxia, tremor of facial muscles ...
Fecal contamination of bedding has been associated with coliform mastitis caused by E. coli, while coliform mastitis caused by Klebsiella spp. is associated with wet sawdust and wood shavings.(1) Coliform mastitis has an average incidence rate of 15% to 20% in herds with low somatic cell counts (SCC) and is implicated in 30% to 40% of clinical cases. It is a common cause of fatal mastitis in ca...
The indiscriminate and injudicious administration of antibiotics and irrational treatment of bovine mastitis with different antibiotics have invited serious complications like multiple drug resistance. The present paper reports the microbiological examination and reporting of a clinical case of mastitis in cow and its recommended therapeutic management with the selected broad spectrum antibioti...
Mastitis is by far the most common and most costly disease in milk production in industrialised countries. Costs are related to loss in milk quality, decreased milk production related to subclinical mastitis, discarded milk, replacement cows, cost of treatment and labour costs [1]. This disease is the most frequent reason for the use of antimicrobials in dairy cows [2]. It can be classified int...
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