List of Articles گاو

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  1 - Lameness, an ongoing threat to dairy farms
  Ahmadreza Mohamadnia Amir Nejati
  Lameness is one of the most important factors causing economic loss in dairy farms. Pain and discomfort following lameness are the main causes of direct and indirect economic losses. Overall situation of dairy farming and dairy products over the world and Iran is review More

  Lameness is one of the most important factors causing economic loss in dairy farms. Pain and discomfort following lameness are the main causes of direct and indirect economic losses. Overall situation of dairy farming and dairy products over the world and Iran is reviewed in this article. A general look at economic loss cycles, different discomfort and health issues that may caused by lameness are the main topics that were reviewed in this article. Data recording is one of the most important factors that should be considered in any analysis. Current methods of data recording in hoof trimming chute, including paper works and usage of excel sheets and other software were reviewed. General concepts of Farsi language android application for hoof data recording introduced and analysed. Manuscript profile
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  2 - Epidemiology of lameness; economic importance, prevalence and incidence
  Marzieh Faezi Reyhaneh Sangtarash
  Herd health and comprehensive preventive medicine were notified since the last half of 20th century, as the farmers were better educated and the value of individual animals relative to veterinary fees has decreased. Restricted attention had been given to the above idea More

  Herd health and comprehensive preventive medicine were notified since the last half of 20th century, as the farmers were better educated and the value of individual animals relative to veterinary fees has decreased. Restricted attention had been given to the above idea leads to misunderstanding of infectious and non-infectious diseases. Currently, veterinarians must support herd health programs designed to increase production by preventing disease, rather than just dispensing traditional treatment to clinically sick animals. Lameness as one of the costliest disorders in dairy herds, needs special attention. Both preventive costs (such as hoof trimming costs) and the losses due to heifer replacements and milk yield reduction should be counted as the economic losses of a disease. Indeed, local data play an important role in estimating lameness losses. Calculating measures of morbidity is a key point that helps the veterinarian and the farmer to know about the farm condition. So, in this article the economic importance of lameness and the concept of prevalence and incidence of it were reviewed. At the end there are some information about the prevalence and incidence of lameness in Iran and some other countries. Manuscript profile
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  3 - Locomotion biomechanic and scoring in dairy farms
  Shabnaz mokhtarnazif Marzieh Faezi
  Lameness is one of the biggest challenges in modern dairy farm around the world. Lameness is defined as the clinical manifestation of painful disorder resulting in deviation from normal gait or posture. It usually happens following claw lesions, although internal and ex More

  Lameness is one of the biggest challenges in modern dairy farm around the world. Lameness is defined as the clinical manifestation of painful disorder resulting in deviation from normal gait or posture. It usually happens following claw lesions, although internal and external factors can affect it. Following herd size growing, farmer’s attention to individual cows has been reduced, therefore lameness diagnostic accrued in sever stages when treatments have the least effect on recovery and prevention. In this article, we try to understand pain basics and behavior changes related to it, using these changes in gait (i.e. back arch, walking speed, track up, head bob etc.) to assess different locomotion scoring systems and their use in dairy farms. Manuscript profile
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  4 - 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
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  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