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Factors affecting milk yield, milk fat, bacterial score, and bulk tank somatic cell count of dairy farms in the central region of Thailand

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Abstract

A study was conducted to determine the effects of season, farm location, and farm size on farm milk yield (FMY), average milk yield per cow (AYC), milk fat, bacterial score, and bulk tank somatic cell count (BTSCC) of dairy farms in the central region of Thailand. Farms were located in the districts of Kaeng Khoi, Muaklek, Pak Chong, and Wang Muang. Collection of data was at the farm level; individual animal records were unavailable. A total of 967,110 daily farm milk yield, 58,575 milk fat and bacterial score, and 24,109 BTSCC records from 1,034 farms were collected from July of 2003 to June of 2006. There were three seasons: rainy, summer and winter. Farms were categorized into small, medium, and large according to the number of cows milked per day. Results showed that FMY and AYC were higher (p <0.05) in winter and lower in the summer and rainy seasons. In addition, the majority of small size farms had higher (p < 0.05) AYC and milk fat values, and lower bacterial score and BTSCC values than medium and large size farms.

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Authors and Affiliations

  1. Department of Animal Sciences, University of Florida, Gainesville, FL, 32611, USA

    J. A. Rhone & M. A. Elzo

  2. Department of Animal Science, Kasetsart University, Bangkok, 10900, Thailand

    S. Koonawootrittriron

Authors
  1. J. A. Rhone
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  2. S. Koonawootrittriron
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  3. M. A. Elzo
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Correspondence to J. A. Rhone.

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Rhone, J.A., Koonawootrittriron, S. & Elzo, M.A. Factors affecting milk yield, milk fat, bacterial score, and bulk tank somatic cell count of dairy farms in the central region of Thailand. Trop Anim Health Prod 40, 147–153 (2008). https://doi.org/10.1007/s11250-007-9074-5

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  • DOI: https://doi.org/10.1007/s11250-007-9074-5

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