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        1 - Applied Anatomy and Histology of the bovine hooves and limbs
        Mohammad Mirhaj Mohammad Ali Sadeghi
        Bovine hoof with its fine structures and accurate function is used for routine locomotion. This part of common integument has special characteristics to carry on a very high resistance to external/internal stimuli. Production and components of different parts of this sm More
        Bovine hoof with its fine structures and accurate function is used for routine locomotion. This part of common integument has special characteristics to carry on a very high resistance to external/internal stimuli. Production and components of different parts of this small region vary and its variation in origin of production makes different protection against systemic disturbances or external/internal forces. Variation among species like cattle and horse limbs, expected performance (confinement and milk production versus athletic performance) and metabolic pressure on each animal results in different outcomes after hoof pathologies. For example, unlike horse, in cattle sinking of 3rd phalanx is more pronounced in the heel region. Horn capsule with its firm, sensitive and complex structure tries to neutralize the forces to which the limb is subjected. Any abnormality in hoof capsule vital tissues is a beginning for claw horn disruption lesion (CHDL) in a dairy farm. There are many hypotheses aiming to describe CHDL pathogenesis. No longer is it acceptable to believe that SARA = Subclinical laminitis. The disorder cannot be managed simply from a nutritional perspective and is Multifactorial. With better understanding of each part of this complex structure and the processes that occur after damage, a better understanding of the physiopathology of hoof capsule injuries is obtained. Manuscript profile
      • Open Access Article

        2 - Effect of Trace Mineral on the Hoof Health
        Fatemeh Kohansal Marzieh Faezi
        The claw quality is a product of claw shape, characteristics of the horn and anatomy of the inner structure. Hoof health is largely determined by the production of good quality horn of adequate resistance. The functional integrity of hoof horn essentially depends on a p More
        The claw quality is a product of claw shape, characteristics of the horn and anatomy of the inner structure. Hoof health is largely determined by the production of good quality horn of adequate resistance. The functional integrity of hoof horn essentially depends on a proper differentiation, i.e., keratinization of hoof epidermal cells. Keratinization of hoof epidermis is controlled and modulated by a variety of bioactive molecules and hormones. This process is dependent on an appropriate supply of nutrients including vitamins, minerals, and trace elements. Regulation and control of differentiation and nutrient flow to the epidermal cells play a central role in determining the quality and, consequently, the functional integrity of hoof horn. Decreasing nutrient supply to keratinizing epidermal cells leads to horn production of inferior quality and increased susceptibility to chemical, physical, or microbial damage from the environment. A growing body of evidence suggests that hormones, vitamins, minerals, and trace elements play critical roles in the normal development of claw horn and correct keratin formation. Increasing the bioavailability of trace minerals improves their utilization and thus contributes to an improved integrity of keratinized tissues. Manuscript profile