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      1 - Lameness, an ongoing threat to dairy farms
      Ahmadreza Mohamadnia Amir Nejati
      Number11 , Year , AutumnWinter 2019
      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 Full Text
      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. Paper Details

    • Open Access Paper

      2 - Epidemiology of lameness; economic importance, prevalence and incidence
      Marzieh Faezi Reyhaneh Sangtarash
      Number11 , Year , AutumnWinter 2019
      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 Full Text
      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. Paper Details

    • Open Access Paper

      3 - Risk factors for cattle lameness
      Ahmadreza Mohamadnia
      Number11 , Year , AutumnWinter 2019
      Lameness and its consequences are one the most important causes of economic losses in dairy farming. Lameness is a multifactorial condition that can be managed by knowing its risk factors and their importance in specific farms and conditions. Current article focusses on Full Text
      Lameness and its consequences are one the most important causes of economic losses in dairy farming. Lameness is a multifactorial condition that can be managed by knowing its risk factors and their importance in specific farms and conditions. Current article focusses on understanding value of causative agents and risk factors in a condition like lameness and evaluating risk factors in dairy farms. Risk factors were classified into farm building or environment factors (Top roof of the barns and its slop and height, flooring and its drainage, distance to milking parlour, milking parlour collecting area, alleys and foot bathes) Managerial factors (Nutrition and feeding, overstocking, herd composition, days in milk, cow movements in the herd, slurry cleaning and drainage, bedding) environment (Temperature, humidity, raining, wind, altitude, heat stress management) and cow factors (body condition scoring, milk production, concurrent diseases, time budgeting). Each factor was analysed in Iran’s dairy farming situation and applied methods of its management were discussed. Paper Details

    • Open Access Paper

      4 - Locomotion biomechanic and scoring in dairy farms
      Shabnaz mokhtarnazif Marzieh Faezi
      Number11 , Year , AutumnWinter 2019
      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 Full Text
      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. Paper Details

    • Open Access Paper

      5 - Cow comfort, a basis for lameness control
      Reyhaneh Sangtarash Shabnaz mokhtarnazif Ensiyeh Sajadyan jaghargh
      Number11 , Year , AutumnWinter 2019
      As the number of large-scale dairy farms increase dairy cow welfare has become a hot topic in recent years. This growing interest in animal welfare has motivated legislators to set new rules. The most important concerns regarding dairy cow welfare include whether the da Full Text
      As the number of large-scale dairy farms increase dairy cow welfare has become a hot topic in recent years. This growing interest in animal welfare has motivated legislators to set new rules. The most important concerns regarding dairy cow welfare include whether the dairy cow is feeling well, functioning well, and performing natural behavior. Cow behavior and comfort level have a direct relationship with her production and health and cow comfort is one of the most important factors affecting the profitability of dairy farms due to its association with premature slaughter, survival of cows and reproductive life (number of complete lactations before slaughter). In this paper, we explained the concept of comfort in dairy cattle and its risk factors such as stall design, floor type, density, lameness and heat stress. Then the measures of cow comfort are introduced and the management considerations related to cattle comfort are discussed. Paper Details

    • Open Access Paper

      6 - Metabolic disturbances predispose dairy cows to lameness
      Ali  Ghashghaii Mohamad Riahi
      Number11 , Year , AutumnWinter 2019
      During the recent decades, a considerable increase in milk production has occurred in dairy cows. But it has been accompanied by an unwanted increase in different diseases and disorders such as metabolic disturbances. Negative energy balance can cause ketosis and fatty Full Text
      During the recent decades, a considerable increase in milk production has occurred in dairy cows. But it has been accompanied by an unwanted increase in different diseases and disorders such as metabolic disturbances. Negative energy balance can cause ketosis and fatty liver. Disturbances in macro-minerals such as calcium, phosphorus and magnesium, micro-minerals, proteins and enzymes often occur days to weeks after parturition. One or the most challenging post-parturient problem, is ruminal acidosis, that it mainly occurs due to changes in ration by using high fermentable carbohydrates to support milk production. All of mentioned disturbances can affect the hoof health and causing lameness in dairy cows. Laminitis is an important sequel of metabolic disturbances and ruminal acidosis in combination with inappropriate housing and management. Lameness can affect cow health and comfort, causing considerable economic losses in dairy industry. Paper Details

    • Open Access Paper

      7 - Early diagnosis, an important success factor for treatment and control of lameness in cow
      Mohammad Reza  Aghchelou
      Number11 , Year , AutumnWinter 2019
      Lameness is one of the cases of culling of cows; also it causes weight and production loss because of pain and has a lot of therapeutic cost. In a study, the prevalence of lameness was estimated on average 2.2% in dairy herds by farmers. After more objective locomotion Full Text
      Lameness is one of the cases of culling of cows; also it causes weight and production loss because of pain and has a lot of therapeutic cost. In a study, the prevalence of lameness was estimated on average 2.2% in dairy herds by farmers. After more objective locomotion scoring, the prevalence of lameness in same dairy herds was on average 8.1%. This matter shows importance of correct lameness diagnosis. The aim of this article is review of practical ways to early diagnosis of lameness in cows. Early diagnosis of lameness in cows is a very important matter because a cow that shows sever lameness have major problems and easily recognizable but a cow with lesser injury have a milder lameness and diagnosis is more difficult. In case of timely detection there is more success in treatment because of less injury. The best time for lameness diagnosis is the cows are monitored when they go to the milking parlor and return. The studies were shown usually farmers identify one of the four lamb cows because they spend a little time for this task, also the gait of cows change on different floors, like wet concrete, although it is difficult to diagnose the sound gait of mild lameness in many cases. In dairy cattle farms in addition to Body Condition Score which is done regularly, Locomotion Scoring is done regularly to allow early diagnosis of lameness. Paper Details

    • Open Access Paper

      1 - Epidemiology of lameness; economic importance, prevalence and incidence
      Marzieh Faezi Reyhaneh Sangtarash
      Number11 , Year , AutumnWinter 2019
      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 Full Text
      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. Paper Details

    • Open Access Paper

      2 - Lameness, an ongoing threat to dairy farms
      Ahmadreza Mohamadnia Amir Nejati
      Number11 , Year , AutumnWinter 2019
      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 Full Text
      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. Paper Details

    • Open Access Paper

      3 - Cow comfort, a basis for lameness control
      Reyhaneh Sangtarash Shabnaz mokhtarnazif Ensiyeh Sajadyan jaghargh
      Number11 , Year , AutumnWinter 2019
      As the number of large-scale dairy farms increase dairy cow welfare has become a hot topic in recent years. This growing interest in animal welfare has motivated legislators to set new rules. The most important concerns regarding dairy cow welfare include whether the da Full Text
      As the number of large-scale dairy farms increase dairy cow welfare has become a hot topic in recent years. This growing interest in animal welfare has motivated legislators to set new rules. The most important concerns regarding dairy cow welfare include whether the dairy cow is feeling well, functioning well, and performing natural behavior. Cow behavior and comfort level have a direct relationship with her production and health and cow comfort is one of the most important factors affecting the profitability of dairy farms due to its association with premature slaughter, survival of cows and reproductive life (number of complete lactations before slaughter). In this paper, we explained the concept of comfort in dairy cattle and its risk factors such as stall design, floor type, density, lameness and heat stress. Then the measures of cow comfort are introduced and the management considerations related to cattle comfort are discussed. Paper Details

    • Open Access Paper

      4 - Risk factors for cattle lameness
      Ahmadreza Mohamadnia
      Number11 , Year , AutumnWinter 2019
      Lameness and its consequences are one the most important causes of economic losses in dairy farming. Lameness is a multifactorial condition that can be managed by knowing its risk factors and their importance in specific farms and conditions. Current article focusses on Full Text
      Lameness and its consequences are one the most important causes of economic losses in dairy farming. Lameness is a multifactorial condition that can be managed by knowing its risk factors and their importance in specific farms and conditions. Current article focusses on understanding value of causative agents and risk factors in a condition like lameness and evaluating risk factors in dairy farms. Risk factors were classified into farm building or environment factors (Top roof of the barns and its slop and height, flooring and its drainage, distance to milking parlour, milking parlour collecting area, alleys and foot bathes) Managerial factors (Nutrition and feeding, overstocking, herd composition, days in milk, cow movements in the herd, slurry cleaning and drainage, bedding) environment (Temperature, humidity, raining, wind, altitude, heat stress management) and cow factors (body condition scoring, milk production, concurrent diseases, time budgeting). Each factor was analysed in Iran’s dairy farming situation and applied methods of its management were discussed. Paper Details

    • Open Access Paper

      5 - Locomotion biomechanic and scoring in dairy farms
      Shabnaz mokhtarnazif Marzieh Faezi
      Number11 , Year , AutumnWinter 2019
      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 Full Text
      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. Paper Details

    • Open Access Paper

      6 - Metabolic disturbances predispose dairy cows to lameness
      Ali  Ghashghaii Mohamad Riahi
      Number11 , Year , AutumnWinter 2019
      During the recent decades, a considerable increase in milk production has occurred in dairy cows. But it has been accompanied by an unwanted increase in different diseases and disorders such as metabolic disturbances. Negative energy balance can cause ketosis and fatty Full Text
      During the recent decades, a considerable increase in milk production has occurred in dairy cows. But it has been accompanied by an unwanted increase in different diseases and disorders such as metabolic disturbances. Negative energy balance can cause ketosis and fatty liver. Disturbances in macro-minerals such as calcium, phosphorus and magnesium, micro-minerals, proteins and enzymes often occur days to weeks after parturition. One or the most challenging post-parturient problem, is ruminal acidosis, that it mainly occurs due to changes in ration by using high fermentable carbohydrates to support milk production. All of mentioned disturbances can affect the hoof health and causing lameness in dairy cows. Laminitis is an important sequel of metabolic disturbances and ruminal acidosis in combination with inappropriate housing and management. Lameness can affect cow health and comfort, causing considerable economic losses in dairy industry. Paper Details

    • Open Access Paper

      7 - Early diagnosis, an important success factor for treatment and control of lameness in cow
      Mohammad Reza  Aghchelou
      Number11 , Year , AutumnWinter 2019
      Lameness is one of the cases of culling of cows; also it causes weight and production loss because of pain and has a lot of therapeutic cost. In a study, the prevalence of lameness was estimated on average 2.2% in dairy herds by farmers. After more objective locomotion Full Text
      Lameness is one of the cases of culling of cows; also it causes weight and production loss because of pain and has a lot of therapeutic cost. In a study, the prevalence of lameness was estimated on average 2.2% in dairy herds by farmers. After more objective locomotion scoring, the prevalence of lameness in same dairy herds was on average 8.1%. This matter shows importance of correct lameness diagnosis. The aim of this article is review of practical ways to early diagnosis of lameness in cows. Early diagnosis of lameness in cows is a very important matter because a cow that shows sever lameness have major problems and easily recognizable but a cow with lesser injury have a milder lameness and diagnosis is more difficult. In case of timely detection there is more success in treatment because of less injury. The best time for lameness diagnosis is the cows are monitored when they go to the milking parlor and return. The studies were shown usually farmers identify one of the four lamb cows because they spend a little time for this task, also the gait of cows change on different floors, like wet concrete, although it is difficult to diagnose the sound gait of mild lameness in many cases. In dairy cattle farms in addition to Body Condition Score which is done regularly, Locomotion Scoring is done regularly to allow early diagnosis of lameness. Paper Details

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