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        1 - Local care of the hooves (Footbath application)
        Khosro Safari Nikroo mohammad ali sadeghi
        Foothbathes are one of the most efficient methods of control and prevention of foot lamenesses specially hoof infectious diseases in dairy herd facilities. In this article different types of foothbathes, design and structure, solutions and renewal rates have been review More
        Foothbathes are one of the most efficient methods of control and prevention of foot lamenesses specially hoof infectious diseases in dairy herd facilities. In this article different types of foothbathes, design and structure, solutions and renewal rates have been reviewed. Copper sulphate and formalin were the most frequently used solution and dimention of 81 cm of width, 3-3.7 m length and depth of 11 cm were introduced as standard dimentions. On the other hand due to environmental and human concerns these solution should be evacuated approperiatly. Also the most appropriate range of bath usage was between 1-4 times a day and 1-7 times a week and in each bath, between 100-300 cows can pass without significant reduction of chemical solution concentration. It should be noted that merely observing these instructions will not reduce digital diseases, and other health and disease control programs should be considered in the herd. Manuscript profile
      • Open Access Article

        2 - Gait biomechanics and digital growth and weight bearing pattern in dairy cows.
        mohammad ali sadeghi Khosro Safari Nikroo Mohammad mirhaj
        Lameness is one the most important problems in dairy herds and a major cause of financial loss and pain and discomfort to animals. Different surveys have revealed that most lameness causing lesions in cattle originate in the claw and in order to better understand the cl More
        Lameness is one the most important problems in dairy herds and a major cause of financial loss and pain and discomfort to animals. Different surveys have revealed that most lameness causing lesions in cattle originate in the claw and in order to better understand the claw disorders, one has to have good understanding of the anatomic structure, horn characteristics, and biomechanics of the claw. The claw is a direct product of the underlying living tissue and different factors affect the rate of horn growth and wear. Here, we aim to review the different factors effecting the horn growth and wear, weight bearing, and biomechanics of the claw. Manuscript profile
      • Open Access Article

        3 - 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

        4 - Management of birth canal injuries in dairy cows
        Bahare Hafezi mohammad ali sadeghi Ahmadreza  Mohammadnia
        Injuries of the birth canal in cows (perineal lacerations, fistula…) cause significant economic loss in dairy herds. These injuries usually are associated with obstetric trauma during labor. Third degree perineal lacerations and fistula formation usually happen because More
        Injuries of the birth canal in cows (perineal lacerations, fistula…) cause significant economic loss in dairy herds. These injuries usually are associated with obstetric trauma during labor. Third degree perineal lacerations and fistula formation usually happen because of dystocia, improper repairs, abscesses and forced extractions and lead to fecal contamination of the birth canal and reduced fertility. The main reason for the birth canal and external part of the reproductive tract surgery is to restore fertility of the animal and repair the injuries associated with dystocia. In this review the causes, management, and treatment of these disorders by emphasizing on the importance of birth canal injuries in cows were discussed. Manuscript profile
      • Open Access Article

        5 - Local anethetic techniques of distal limbs in cattle
        mohammad ali sadeghi Samaneh Ghasemi
        Cattle usually tolerate physical restraint so, many surgical or therapeutic techniques including limbs procedures can be performed by using a combination of mild sedation and local or reginal anesthesia. These techniques avoid the risk of general anesthetic and are rela More
        Cattle usually tolerate physical restraint so, many surgical or therapeutic techniques including limbs procedures can be performed by using a combination of mild sedation and local or reginal anesthesia. These techniques avoid the risk of general anesthetic and are relatively simple and inexpensive with low side effects. Local or reginal anesthesia involve the local anesthetic drug that provide the absence of sensation in a region of body. Use of appropriate of local anesthesia is an important tool to perform different therapeutic and surgical procedures in limbs of cattle. It is important that local anesthesia provides sufficient analgesia for pain management. Lidocaine is the most common local anesthetic drug used in cattle. Before injection, the skin should be cleaned to reduce the chance of introducing pathogens. There are several techniques of local and reginal anesthesia including nerve block, ring block, four-point and, intravenous regional anesthesia for distal limbs in cattle. In nerve block, an anesthetic drug injects near specific nerves while ring block performs by injection of an anesthetic drug circumferentially around the mid-metacarpus or metacarpus region. In low four-point block, local anesthetic drug is injected in four sites to anesthetize the lower limb from pastern distally. During intravenous regional anesthesia, an anesthetic drug is intravenously injected by a catheter followed by the placement of a tourniquet around the limb. Consideration to the volume of used local anesthetic drug is necessary for prevention of toxic effect of these drugs. In this article, the most common local anesthetic techniques of the distal limbs in cattle are described. Manuscript profile
      • Open Access Article

        6 - Ligamentous injuries of the stifle joint in cattle
        Zahra Sadat  Yousef Sani Ahad Jafari Rahbar Alizadeh mohammad ali sadeghi
        Lameness of the hindlimbs originating from the stifle joint is one of the causes of pain, production losses, and culling from herd in cattle. Stifle is a large joint divided into femeropatellar and lateral and medial femorotibial joints. The major soft tissue structures More
        Lameness of the hindlimbs originating from the stifle joint is one of the causes of pain, production losses, and culling from herd in cattle. Stifle is a large joint divided into femeropatellar and lateral and medial femorotibial joints. The major soft tissue structures of the stifle joint are lateral and medial collateral ligaments, cranial and caudal cruciate ligaments, lateral, middle, and medial patellar ligaments, and menisci That contribute to stabilize the stifle joint and its function. Different disorders including fractures, arthritis, and injuries of the menisci, collateral, and cruciate ligaments, and upward fixation of the patella affect stifle joint in cattle. The most important sequela of the stifle injuries is degenerative joint disease. Various degree of joint effusion, pain and lameness are the common clinical signs of stifle injuries in cattle. Lameness of the stifle joint may be difficult to diagnose and treat. Therefore, careful examination of the hindlimb is indicated. Radiography and ultrasonography can be used for diagnosis of stifle joint injuries in cattle. Because of the economic considerations and other limitations, advanced diagnostic techniques such as arthroscopy, computed tomography, and magnetic resonance imaging are uncommonly performed in cattle. Conservative management and surgical techniques are used for treatment of stifle disorders in cattle. Economic value of the cattle, severity of injury, presence of degenerative joint disease, availability of surgical equipment, and expertise of the surgeon should be considered for selecting of treatment options. Prognosis of stifle disorders in cattle is variable and depends on the type of injury, its severity, involved structures and concurrent injuries as well as cattle condition. In this article the most important soft tissues injuries of the stifle joint, clinical signs, diagnosis, treatment and prognosis of these injuries are described. Manuscript profile