[Survey of lameness in six dairy farms of Shiraz and marvdasht during one year period]

ABSTRACT

Descriptive study of lameness in some dairy farmsin Shiraz and Marvdasht in Pars Province.Descriptive study.624 cattle in six dairy farms.The dairy farms were selected on the basis ofowners' cooperation, type of production and predominantbreed [Holstine breed]. In the first step farmers wereinterviewed using a questionnaire to record the generalinformation of herd. A separate form was completed forevery affected cow according to history and clinicalexamination. This study was continued for a period of oneyear.The results of this study wereanalyzed descriptively.The results indicated that 13.74% of examinedcattle showed lameness. From that 4.8% were in winter, 4% in spring, 2.12% in summer and 2.7% in autumn.Lactating cows were most affected. 2-5 years old cowswere the most sensitive ones. Most of lesions were locatedin thedigital region [89.55%] showing72.10%inhindlimb, 46.48% in lateral claw of hind limbs.Bed condition, rainfall, age, hoof trimmingmanagement, no footbath, inadequate exercise and stage oflactation were determining factors in occurrence oflameness in this studyDescriptive study of lameness in some dairy farmsin Shiraz and Marvdasht in Pars Province.Descriptive study.624 cattle in six dairy farms.The dairy farms were selected on the basis ofowners' cooperation, type of production and predominantbreed [Holstine breed]. In the first step farmers wereinterviewed using a questionnaire to record the generalinformation of herd. A separate form was completed forevery affected cow according to history and clinicalexamination. This study was continued for a period of oneyear.The results of this study wereanalyzed descriptively.The results indicated that 13.74% of examinedcattle showed lameness. From that 4.8% were in winter, 4% in spring, 2.12% in summer and 2.7% in autumn.Lactating cows were most affected. 2-5 years old cowswere the most sensitive ones. Most of lesions were locatedin thedigital region [89.55%] showing72.10%inhindlimb, 46.48% in lateral claw of hind limbs.Bed condition, rainfall, age, hoof trimmingmanagement, no footbath, inadequate exercise and stage oflactation were determining factors in occurrence oflameness in this study