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      https://www.ias.ac.in/article/fulltext/jgen/099/0027

    • Keywords

       

      paternal lineage; Holstein Friesian crossbred bull; acrocentric Y-chromosome.

    • Abstract

       

      Karyotyping is one among the culling parameter used for taking up culling decisions. Cytogenetic screening of breeding bulls has been recommended to screen for chromosomal abnormalities before semen production in artificial insemination. The chromosomal analysis of a Holstein Friesian crossbred bull revealed the presence of acrocentric Y-chromosome, which was further confirmed by CBGbanding. The shape of the Y-chromosome determining that male line used for crossbreeding was from indigenous origin. Karyotyping is a best and reliable technique for the identification of crossbred calves born to the indigenous bulls.

    • Author Affiliations

       

      V. HARSHINI1 P. KUMARASAMY1 S. M. K. KARTHICKEYAN1 D. CAUVERI1 A. MANGALA GOWRI2 S. RANGASAMY3

      1. Department of Animal Genetics and Breeding, Madras Veterinary College, Chennai 600 007, India
      2. Centre for Stem Cells and Regenerative Medicine, Madras Veterinary College, Chennai 600 007, India
      3. Department of Veterinary Gynaecology and Obstetrics, Madras Veterinary College, Chennai 600 007, India

    • Dates

       
      Published
      7 April 2020
      Manuscript received
      7 January 2020
      Manuscript revised
      8 February 2020
      Accepted
      17 February 2020

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      Posted on July 25, 2019

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