نتایج جستجو برای: chronic mastitis

تعداد نتایج: 503704  

Journal: :Journal of Dairy Science 1937

2014
A. Lainé C. Bastin L. Théron E. Reding N. Gengler

The objective of this research was to investigate the potential of mid-infrared (MIR) analysis of milk to provide indicators of the udder health status of dairy cows. Mastitis data collected in 49 Walloon herds were merged with test-day data including milk composition and MIR spectra. A total of 1987 healthy lactation and 3204 lactations with at least one mastitis, clinical or sub-clinical, chr...

2017
L. Timms G. M. Pighetti P. Martin H. Barkema S. G. Narayana F. Miglior

Global technologies and strategies have been implemented the past 60+ years and greatly enhanced mastitis control, resulting in improved quantities and quality of milk and dairy products. Continued demands for the highest quality, safest quality milk as a foundation for human nutrition is recognized and supported, and abilities to transport and export dairy products with greater shelf life has ...

Journal: :iranian journal of applied animal science 2015
s. naghshineh s.a. rafat j. shoja g.a. moghaddam m. ebrahimi

the present study aimed to estimate the effects of parity, calving season and year of calving on the prevalence of subclinical mastitis in holstein cows. a total of 2682 records from 869 holstein cows in a large dairy farm (azarbaijan province, iran), respecting the period from 2006 to 2009, were collected. data was analyzed using proc mixed of sas software by mivque method. subclinical mastiti...

Journal: :Journal of Veterinary and Animal Sciences 2022

Staphylococcus aureus is the most frequently isolated pathogen from bovine mastitis including subclinical, clinical, and chronic infections. Virulence factors possessed by S. aid in causing infection inflammation producing toxins proteins, which are responsible for pathogenesis of disease. In current study out 51 animals presented with clinical mastitis, was milk 18 animals. confirmed genus spe...

2006
O. WELLNITZ P. REITH S. C. HAAS H.H.D. MEYER

Different mastitis pathogens induce different courses of infection, i.e. more or less severe. Mammary epithelial cells play an important role in the initial combat against microorganisms by expression of cytokines and acute phase proteins that regulate the immune response. The objective of the present study was to investigate the involvement of the epithelial cells into the outcome of mastitis ...

2006
MILANOV DUBRAVKA

In this paper an outbreak of mastitis in cows resistant to antibiotic treatment on a Holstein-Friesian cattle farm in Vojvodina (Serbia and Montenegro) was described. Microbiological examination of 73 milk samples from lactating cows revealed the presence of Prototheca zopfii in 22 samples (30.13%). Identification of the isolates was performed on the basis of growth features, microscopic appear...

Journal: :Journal of dairy science 2005
L L Tikofsky R N Zadoks

Group G streptococci in animals usually belong to the species Streptococcus canis and are most commonly found in dogs and cats. Occasionally, Strep. canis is detected in milk from dairy cows. An outbreak of Strep. canis mastitis in a dairy herd is described. Based on results from bacterial culture and ribotyping, a cat with chronic sinusitis was the most likely source of the outbreak. Subsequen...

Journal: :Archives of disease in childhood 2003
C Michie F Lockie W Lynn

The process of lactation and feeding, referred to by some as the final stage of labour is remarkably successful. This phase of infant care has been subjected to considerable evolutionary pressure since the earliest mammals, reptiles and birds diversified. It has allowed thousands of species to occupy a vast range of ecological niches. Yet a significant complication of breast feeding remains inf...

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