Document Detail


Effect of clinical contagious agalactia on the bulk tank milk somatic cell count in Murciano-Granadina goat herds.
MedLine Citation:
PMID:  15377594     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
From 19 herds of Murciano-Granadina goats, weekly bulk tank somatic cell count (BTSCC) were performed from October to April, and suspicious milk (n = 182), synovial fluid, and ocular swabs (n = 15) from diseased goats were processed for mycoplasma isolation and identification. Also BTSCC from 65 herds were determined (n = 2693). A mixed model procedure was used to establish the effect of the herd and the lactation month on the BTSCC. Monthly rolling values were calculated for each herd using data collected over the preceding 3 complete months, and 4 different BTSCC thresholds were considered: 1,750,000, 1,500,000, 1,000,000, and 750,000 cells/mL. The mean log BTSCC for the 7-mo study period was 5.89 +/- 0.28 for herds without mycoplasma detection from clinical cases, 5.91 +/- 0.31 for mycoplasma-infected herds without clinical contagious agalactia (CA), and 6.47 +/- 0.32 for the herd with clinical CA. The posthoc tests revealed that only the herd that suffered a clinical CA outbreak showed counts that were significantly higher. No significant differences were found for BTSCC between herds not showing clinical episodes of CA, regardless of whether the mycoplasma had been isolated or not. The 1,750,000-cells/mL threshold would only be surpassed by a few herds with serious mastitis problems (clinical outbreak of CA for example). Seventy percent of the goat herds studied were in compliance with the proposed European Union legal limit of 1,500,000 cells/mL for goat milk.
Authors:
J C Corrales; A Sánchez; C Luengo; J B Poveda; A Contreras
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of dairy science     Volume:  87     ISSN:  0022-0302     ISO Abbreviation:  J. Dairy Sci.     Publication Date:  2004 Oct 
Date Detail:
Created Date:  2004-09-20     Completed Date:  2005-01-25     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  2985126R     Medline TA:  J Dairy Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3165-71     Citation Subset:  IM    
Affiliation:
Epidemiología y Enfermedades Infecciosas, Facultad de Veterinaria, Universidad de Murcia, 30071 Murcia, Spain.
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MeSH Terms
Descriptor/Qualifier:
Animals
Cell Count*
Female
Goat Diseases / pathology*
Goats
Milk / cytology*,  microbiology*
Mycoplasma Infections / veterinary*
Mycoplasma agalactiae / isolation & purification*
Seasons

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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