An observational study on the relationship between zinc concentrations in bulk tank milk and in serum and farmer-reported zinc supplementation of dairy cattle for facial eczema prophylaxis

Author(s):  
WA Mason ◽  
EL Cuttance ◽  
P Jamieson ◽  
SR Davis
2020 ◽  
Vol 103 (3) ◽  
pp. 2685-2692
Author(s):  
A. Gazzola ◽  
A.M. Maisano ◽  
V. Bianchini ◽  
F. Vezzoli ◽  
A. Romanò ◽  
...  

2011 ◽  
Vol 140 (9) ◽  
pp. 1710-1713 ◽  
Author(s):  
A.-F. TAUREL ◽  
R. GUATTEO ◽  
A. JOLY ◽  
F. BEAUDEAU

SUMMARYThe relationship between the level of antibodies in bulk tank milk (BTM) and the within-herd seroprevalence of Coxiella burnetii in cows was assessed. Blood from milking cows and BTM were sampled in 55 infected herds and tested using commercial enzyme-linked immunosorbent assay (ELISA) kits. The relationship between antibody levels and WHP, which was quantified using a general linear model, was only moderate (R2=0·15). Nevertheless, the lowest antibody level in BTM was associated with the lowest mean within-herd prevalence. The present finding indicates that ELISA applied to BTM could identify infected herds with quite low within-herd seroprevalence. For such herds, the vaccination of dairy cows as well as nulliparous heifers using a phase I vaccine could effectively prevent C. burnetii shedding.


2012 ◽  
Vol 61 (2) ◽  
pp. 163-168 ◽  
Author(s):  
A. Piñero ◽  
J. F. Barandika ◽  
A. Hurtado ◽  
A. L. García-Pérez

2012 ◽  
Vol 171 (6) ◽  
pp. 156.2-156 ◽  
Author(s):  
G. E. Valergakis ◽  
C. Russell ◽  
R. Grogono-Thomas ◽  
M. C. Eisler ◽  
A. J. Bradley

2016 ◽  
Vol 134 ◽  
pp. 139-144 ◽  
Author(s):  
Zary Nokhodian ◽  
Awat Feizi ◽  
Abdolreza Moradi ◽  
Majid Yaran ◽  
Shervin Ghaffari Hoseini ◽  
...  

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