Please use this identifier to cite or link to this item:
Title: Efficiency of somatic cell count and california mastitis test in the diagnosis of subclinical mastitis in terrincha ewes
Author: Mendonça, Álvaro
Machado, M.
Tavares, A.
Quintas, Hélder
Valentim, Ramiro
Maurício, Raimundo
Cardoso, Manuel
Keywords: Mastites
Terrincha ewes
Somatic Cells Count
Mastitis Californian Test
Issue Date: 2012
Publisher: Associação Portuguesa de Buiatria
Citation: Mendonça, Álvaro; Machado, M.; Tavares, A.; Quintas, Helder; Valentim, Ramiro; Maurício, Raimundo; Cardoso, Manuel (2012) - Efficiency of somatic cell count and california mastitis test in the diagnosis of subclinical mastitis in terrincha ewes. In XXVII World Buiatrics Congress. Lisbon
Abstract: This study aimed to compare the efficiency of microbiological test with Californian Mastitis Test and somatic cell count in the diagnosis of Subclinical Mastitis (SM) in Terrincha sheep. Twenty-seven of a flock of about 200 Terrincha ewes (local breed) were studied for a period of 9 weeks (n > 497 samples). Milk samples were aseptically collected from each half udder once a week. At the same time, another sampled was collected from the bulk tank. After being transported to Lab under refrigeration all samples were immediately processed. The tests performed were the total microbial count (PCA), the Californian Mastitis Test (CMT) and the somatic cell count (SCC). After PCA testing, all samples exceeding 500 cfu/ml of milk (10-1 dilution) were considered positive to mastitis. The SCC was performed by a Fossmatic equipment at the Lactogal Lab. CMT was more accurate to predict Negative (87.1%) than Positive (43.1%) samples (Chi-square = 42.5; P≤0.001), meaning that 12.9% half udders were classified as negative being positive and 47.7% half udders were classified as positive being negative. PCA Negative and Positive samples were related to different SCC values (Negative: 277,048.9 ± 571,249.7 vs. Positive: 800,329.5 ± 1,444.970 somatic cells; P≤0.001), allowing to identify the real Positive (infected) half udders in complement to CMT.
Peer review: yes
ISSN: 0873/6758
Appears in Collections:CA - Resumos em Proceedings Não Indexados ao ISI/Scopus

Files in This Item:
File Description SizeFormat 
70. SCC and CMT in diagnosis of subclinical mastitis (CM Buiatria 2012).pdf1,61 MBAdobe PDFView/Open

FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Degois 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.