نتایج جستجو برای: subclinical mastitis

تعداد نتایج: 22740  

2017
Heidi Hiitiö Johanna Vakkamäki Heli Simojoki Tiina Autio Jouni Junnila Sinikka Pelkonen Satu Pyörälä

BACKGROUND The dairy industry has undergone substantial structural changes as intensive farming has developed during recent decades. Mastitis continues to be the most common production disease of dairy cows. Nationwide surveys of mastitis prevalence are useful in monitoring udder health of dairy herds and to study the impact of structural changes on the dairy industry. This survey on bovine sub...

2001
Pamela Ruegg

Introduction Mastitis is the most frequent and costly disease of dairy cattle. Losses due to mastitis can be attributed to both subclinical and clinical disease. Clinical mastitis losses are generally readily apparent and consist of discarded milk, transient reductions in milk yield and premature culling (Fetrow, 2000). Subclinical mastitis is considered the most economically important type of ...

A. Rahimi Froushani M. Bolourchi O. Ghasemian Karyak S. Safi,

Subclinical mastitis is considered as one of the most prevalent diseases in dairy cows, causing drasticloss in the dairy industry. Oxidative stress, induced by reactive oxygen species (ROS), is believed to be aprimary factor in various cattle diseases including mastitis, but there are few studies regarding the role ofROS in subclinical mastitis. This study was undertaken to i) study the changes...

2009
Joshua COCKFIELD Caroline LE MARECHAL Yves LE LOIR Marlène CHEVALIER D. Ashley ROBINSON Richard THIERY Jodi LINDSAY

Difference in virulence between Staphylococcus aureus isolates causing gangrenous 2 mastitis versus subclinical mastitis in a dairy sheep flock 3 4 Eric VAUTOR Abstract – Staphylococcus aureus mastitis in dairy sheep ranges from subclinical mastitis to 22 lethal gangrenous mastitis. Neither the S. aureus virulence factors nor the host-factors or the 23 epidemiological events contributing to the...

Journal: :Animal : an international journal of animal bioscience 2015
M D P Peters I D B Silveira V Fischer

A total of 90 cows from three commercial farms were used to evaluate the relationship between subclinical mastitis and clinical mastitis and thermal nociceptive threshold. Milk strips from all udder quarters were tested for clinical mastitis with visual inspection of milk and udder alterations and for subclinical mastitis using California Mastitis Test. Milk yield was recorded, milk was sampled...

Journal: :Revista iberoamericana de micologia 2011
Carolina Segundo Zaragoza Roberto Arnulfo Cervantes Olivares Andrés Ernesto Ducoing Watty Alejandro de la Peña Moctezuma Lourdes Villa Tanaca

BACKGROUND The mastitis subclinical and clinical in cows caused by fungi has been increased specially by yeast of the genus Candida. OBJECTIVE To identify what yeasts were present in milk samples obtained from mammary glands of healthy cows, and others suffering subclinical or clinical mastitis. METHODS From a total of 1,095 milk samples 342 were from mammary glands of healthy dairy cows, 3...

2015

A cross-sectional study to investigate prevalence, seasonal prevalence and causative agents of clinical and subclinical dromedary camel mastitis in Saudi Arabia (KSA) was conducted. The prevalence of acute mastitis was 3.6% and of chronic mastitis was 2.2%. Physical tests, California mastitis test (CMT) and somatic cell count (SCC), were done in normal and infected milk specimens to draw a bord...

Journal: :iranian journal of veterinary research 2011
o. ghasemian karyak s. safi a. rahimi froushani m. bolourchi

subclinical mastitis is considered as one of the most prevalent diseases in dairy cows, causing drasticloss in the dairy industry. oxidative stress, induced by reactive oxygen species (ros), is believed to be aprimary factor in various cattle diseases including mastitis, but there are few studies regarding the role ofros in subclinical mastitis. this study was undertaken to i) study the changes...

Journal: :Research in veterinary science 2010
Onur Atakisi Hasan Oral Emine Atakisi Oguz Merhan S Metin Pancarci Ayla Ozcan Saban Marasli Bulent Polat Armagan Colak Semra Kaya

The aim of this study was to investigate total antioxidant (TAC), and oxidant capacity (TOC) and nitric oxide (NO) levels in milk of cows with subclinical mastitis. Brown Swiss and Holstein breed cows were screened with California Mastitis Test (CMT) to determine mammary glands with subclinical mastitis. Moreover, somatic cell counts (SCC) were determined electronically in all milk samples. Mam...

2000
Pamela L. Ruegg Pamela Ruegg

© 2005, Pamela L. Ruegg Premiums, Production and Pails of Discarded Milk How Much Money Does Mastitis Cost You? Pamela Ruegg, DVM, MPVM University of Wisconsin, Madison Introduction Profit centered dairy farms strive to maximize milk price and control costs. One way to control costs is by minimizing the rate of disease. The most costly disease of dairy cattle is generally considered to be masti...

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