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    • Irish Journal of Agricultural & Food Research
    • IJAFR, volume 44, 2005
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    Cow serum and colostrum immunoglobulin (IgG1) concentration of five suckler cow breed types and subsequent immune status of their calves

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    Author
    Murphy, B.M.
    Drennan, Michael J
    O'Mara, Frank P.
    Earley, Bernadette
    Keyword
    Breed
    Colostrum
    Immunoglobulins
    Suckler cow
    Date
    2004
    
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    URI
    http://hdl.handle.net/11019/672
    Citation
    B.M. Murphy, M.J. Drennan, F.P. O’Mara and B. Earley. Cow serum and colostrum immunoglobulin (IgG1) concentration of five suckler cow breed types and subsequent immune status of their calves. Irish Journal of Agricultural and Food Research 44: 205–213, 2005
    Abstract
    The objective of this study was to determine the effect of cow breed type on (a) cow serum and colostrum immunoglobulin (IgG1) concentrations and (b) subsequent calf serum IgG1 concentration and zinc sulphate turbidity (ZST) units. Five cow breed types were examined: LF (Limousin × Friesian), LLF (Limousin × (Limousin × Friesian)), L (Limousin), C (Charolais) and SLF (Simmental × (Limousin × Friesian)). Three blood samples were taken by jugular venipuncture from the cows at approximately 90, 60 and 30 days pre partum, at parturition and at 15 days or more post partum and from the calves at 48 (40 to 56) h post partum. Prior to suckling a 20 ml sample of colostrum was obtained. Milk yield was estimated using the weigh-suckleweigh technique. The decrease in serum IgG1 concentration in cows between 90 days pre partum and parturition was greater (P < 0.01) for LF cows than all other breed types, except SLF. There was no difference between LLF, L, C and SLF cows. There was no effect of cow breed type on colostrum IgG1 concentration. Milk yield was higher (P < 0.001) for LF cows than all other breed types, while that of SLF was higher than the three remaining breed types, which were similar. Calf serum IgG1 concentration and ZST units were higher (P < 0.01) for the progeny of LF cows than all others except SLF. There was no difference between the progeny of LLF, L, C and SLF cows. Calf serum IgG1 was affected by cow breed type and showed a positive relationship with cow serum IgG1 decreases in late pregnancy.
    Funder
    Teagasc Walsh Fellowship Programme
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    IJAFR, volume 44, 2005
    Animal & Bioscience

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