Veterinary Science & Technology

ISSN: 2157-7579

Open Access

Kazuyuki Kaneko

1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 229-8501

  • Commentry
    The Effect of PGF, GnRH, E2 or Antibiotics on the Intrauterine Environment and Reproduction in Holstein Dairy Cows with Retained Placentas
    Author(s): Kazuyuki KanekoKazuyuki Kaneko

    PGF2α, GnRH, estradiol (E2), or antibiotics were given to dairy cows with retained placenta after parturition to establish the most suitable treatment to prevent the development of endometritis. One hundred and seventy five parous Holstein cows with retained placenta were allocated to into six treatment groups, and groups were given PGF2α, GnRH, E2, or antibiotics at 30 or 45 days after parturition. The intrauterine perfusion fluid was collected at 60 days after parturition, and a bacteriological and cytological examination was conducted. Reproductive performance was also investigated. The detection rate for Trueperella pyogenes in the intrauterine perfusion fluid in each group ranged from 0% to 16%, and T. pyogenes was not isolated in cows that were given PGF2α or E2. The percentage of neutrophils observed in the intrauterine perfusion fluid ranged.. Read More»
    DOI: 10.4172/2157-7579.1000444

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