Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

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Eicher, S.D. et al.

Eicher, Morrow-Tesch, Albright, Dailey, Young, Stanker,

Tail-docking influences on behavioral, immunological, and endocrine responses in dairy heifers.

Behavioral and physiological changes were measured following tail-docking in primiparous heifers. One month before projected first parturition, 21 heifers were assigned to control (nondocked), docked, or docked with lidocaine groups. Heifers were banded to initiate tail-docking and the necrotic tail was removed after 144 h. Physiological, immunological, and behavioral measures were taken for 240 h following banding. Cortisol was not different for control and treated heifers. Haptoglobin increased for docked heifers by 168 h postbanding (24 h postdocking). Alpha1-acid glycoprotein decreased as haptoglobin increased, and alpha1-acid glycoprotein increased until 240 h postbanding. Tumor necrosis factor-alpha increased only with lidocaine and did not show an effect of docking by 240 h postbanding. Lymphocyte phenotyping demonstrated increased CD4+ and CD8+ peripheral blood mononuclear cells for docked plus lidocaine heifers and gammadelta+ cells of those heifers tended to be reduced compared with docked heifers. Eating was the only maintenance behavior affected by banding in both docked groups (increased with banding and decreased with docking). The initial banding procedure did not alter heifer physiology and altered only eating behavior, but the cutting of the tail (docking) increased haptoglobin in response to the tissue damage and returned eating behavior to baseline. The use of lidocaine to anesthetize the tail before banding affected lymphocyte phenotypes and TNF-alpha (banding alone did not alter these parameters).[1]

References

Tail-docking influences on behavioral, immunological, and endocrine responses in dairy heifers. Eicher, S.D., Morrow-Tesch, J.L., Albright, J.L., Dailey, J.W., Young, C.R., Stanker, L.H. J. Dairy Sci. (2000) [Pubmed]

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