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  • Title: Effect of different claw trimming methods on the pressure distribution under the bovine claw--an in vitro study.
    Author: Zeiner H, Schobesberger H, Skalicky M, Stanek C.
    Journal: Berl Munch Tierarztl Wochenschr; 2007; 120(3-4):165-72. PubMed ID: 17416140.
    Abstract:
    This survey focusses on the effects of various claw trimming methods as well as the effect of the different resulting claw shapes on the pressure distribution under the sole. 64 bovine claws were trimmed according to 3 different trimming methods, the functional claw trimming method by Toussaint Raven and two other specially modified methods. The alternative methods resulted on the one hand in long and acute-angled claws, on the other hand in a very steep claw profile. The limb samples were attached to the hydraulic plunger of a material testing machine and pressed onto a pressure distribution plate with a predefined load. The pressure distribution pattern was recorded before and after trimming. An obvious stress concentration could be observed in the bulbar region of the outer claws. All of the applied claw trimming methods induced a redistribution of load onto the inner claws while relieving the bulbar area of the outer claws. The inner claws were the main reason for the enlarged floor contact area caused by the trimming techniques. The results show that all techniques led to an improvement of stress conditions. In some cases, methods 2 and 3 were slightly superior in reducing maximum pressure and enlarging floor contact area.
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