Identification of potential on-farm sources ofListeria monocytogenesin herds of dairy cattle

2009 ◽  
Vol 234 (5) ◽  
pp. 673-673
Author(s):  
Hussni O. Mohammed ◽  
Korana Stipetic ◽  
Patrick L. McDonough ◽  
Ruben N. Gonzalez ◽  
Daryl V. Nydam ◽  
...  
Keyword(s):  
Dairy Cattle ◽  
On Farm

scholarly journals On-farm characterization and evaluation of dairy cattle crossbreeds in Côte d’Ivoire

2010 ◽  
Vol 1 (2) ◽  
pp. 398-399
Author(s):  
Edouard K. N’Goran ◽  
Valentine C. Yapi Gnaore ◽  
Agathe T. Fantodji
Keyword(s):  
Dairy Cattle ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
On Farm

On-farm use of a water hardness test kit to assess total blood calcium level in dairy cattle

2020 ◽  
Vol 87 (1) ◽  
pp. 56-59
Author(s):  
Filippo Fiore ◽  
Raffaella Cocco ◽  
Daniele Musina ◽  
Nicoletta Spissu
Keyword(s):  
Dairy Cattle ◽  
Calcium Concentration ◽  
Water Hardness ◽  
Hardness Test ◽  
Total Serum ◽  
Total Blood ◽  
Predictive Values ◽  
Blood Calcium ◽  
Test Kit ◽  
On Farm

AbstractIn this Research Communication we report the measurement of total blood calcium concentration with a water hardness test kit (WHTK) in dairy cattle and compare the results to a reference method. The study was carried out on 107 Holstein Friesian cows from three commercial dairy farms in Sardinia (Italy). Blood samples were collected ≤7 d from calving and total serum calcium concentration was determined using a biochemical analyzer and a WHTK. The relationship between the laboratory results and the WHTK results was investigated using Spearman's rank correlation test and simple linear regression was determined. Sensitivity, specificity, negative and positive predictive values, intra and inter-assay coefficient of variation were also calculated. The test values were highly correlated with the laboratory values (R2 = 0.72, P < 0.001). Sensitivity and specificity were respectively 88 and 83% for the WHTK and intra and inter-assay coefficients of variation were 7.3 and 11.3% respectively. The WHTK was identified as a potential on-farm tool for monitoring early postpartum Ca concentrations at herd level.

Escherichia coli O157 in Cull Dairy Cows on Farm and at Slaughter

1997 ◽  
Vol 60 (11) ◽  
pp. 1386-1387 ◽  
Author(s):  
DANIEL H. RICE ◽  
ERIC D. EBEL ◽  
DALE D. HANCOCK ◽  
THOMAS E. BESSER ◽  
DONALD E. HERRIOTT ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Dairy Cattle ◽  
Dairy Cows ◽  
Dairy Herds ◽  
Escherichia Coli O157 ◽  
E Coli ◽  
Cull Cows ◽  
On Farm

Cull dairy cattle both on the farm and at slaughter from herds in the states of Idaho, Oregon, and Washington were surveyed for Escherichia coli O157 by culturing fecal swab samples. A total of 205 cull cows from 19 dairy herds were sampled on the farm of origin; 7 (3.4%) tested positive for E. coli O157. A total of 103 cull cows from 15 dairy herds were sampled at slaughter; 4 (3.9%) were positive for E. coli O157. Eighty-nine cull cows were sampled both at the farm and at slaughter; 2 (2.2%) were positive in both locations, 3 (3.3%) only on the farm, and 2 (2.2%) only at the slaughter plant. Seven (7.9%) of the 89 cull cows tracked from farm to slaughter were positive in at least one location. This suggests a higher prevalence of E. coli O157 in cull dairy cattle than previously has been reported to occur in other ages and classes of cattle.

scholarly journals On-farm starling populations and other environmental and management factors associated with the presence of cefotaxime and ciprofloxacin resistant E. coli among dairy cattle in Ohio

2016 ◽  
Vol 134 ◽  
pp. 122-127 ◽  
Author(s):  
Genet A. Medhanie ◽  
David L. Pearl ◽  
Scott A. McEwen ◽  
Michele T. Guerin ◽  
Claire M. Jardine ◽  
...  
Keyword(s):  
Dairy Cattle ◽  
E Coli ◽  
Factors Associated ◽  
Management Factors ◽  
On Farm

scholarly journals On farm welfare assessment of dairy cattle in small holders’ production system in Assam

2020 ◽  
Vol 8 (2) ◽  
pp. 851-857
Author(s):  
C Dutta ◽  
RJ Deka ◽  
TK Amonge ◽  
M Sonowal ◽  
M Bhuyan ◽  
...  
Keyword(s):  
Dairy Cattle ◽  
Production System ◽  
Welfare Assessment ◽  
Small Holders ◽  
On Farm
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