Opis

• Tytuł:
  “THE HUMAN FACTOR” AS A CAUSE OF FAILURES DURING THE TREATMENT OF COWS USING THE OVS PROGRAM AND PROGESTERONE DEVICES
• Twórca:
  Jaśkowski, Bartłomiej
• Opis:
  In field conditions, vaginal gestagens or the OVS program are used to treat cows withpostpartum anestrus, non-pregnant or repeat breeder. The effectiveness of these variessignificantly. We assume that some of the failures can be attributed to organizational errors,mostly consisting in insufficient observation of oestrus and incorrect timing of insemination.The aim of the research was to determine: 1) the percentage of cows inseminated at thecorrect term, 2) the percentage of cows inseminated at a date significantly different from theexpected date. In total, 1.026 cows from 12 different herds were used in the study. Theanimals were classified into two groups. In group I, 458 females received intravaginalprogesterone device CIDR (Zoetis – containing 1.38 g P4) for 7 days, while 295 femalesreceived the PRID progesterone device (CEVA containing 1.55 g P4). On the day of deviceremoval, a 500 μg i.m. injection of cloprostenol was administered. Cows were inseminatedaccording to heat symptoms. In group II – 273 cows were subjected to the OVS program (i.m.injection of GnRH (Receptal, Intervet), prostaglandin (i.m. injection of 500 μg of cloprostenol(Estrumate, MSD) on day 7 and the same dose like before GnRH on day 9). Females wereinseminated 24h after the final GnRH dose. Of the 753 PRID/CIDR cows, 568 (75.4%) showedheat within the expected period, i.e. between 1 and 5 days after removal of the progesteroneIUD. Another 43 (5.7%) lost their insert. This group included additional 5 (0.6%) cows whichwere inseminated on the 6th or 7th day after insertion of the insert. There were 48 cows intotal that lost the insert (6.3%; CIDR 7.4% vs. PRID – 4.7%). 137 (18.2%) cows wereinseminated more than 5 days after prostaglandin administration. In group II, 117 cows(42.8%) were inseminated within an acceptable time, i.e. up to 3 days after GnRHadministration. The remaining females showed estrus > 5 days after P4 or before PGadministration – 156 (57.1%). Summing up; after the use of progesterone inserts, ¾ of thecows were inseminated on time. In 1/5 cows, for various, unknown reasons (missing heat,lack of heat, cows were inseminated at a later date. Using the OVS program, about 40% ofcows were inseminated on the indicated date. The remaining ones were inseminated too lateor much earlier, during the oestrus and ovulation synchronization program. It cannot be ruledout that the moderate effectiveness of hormonal programs is a gross effect of organizationalerrors and untimely insemination of cows.
• Dostępność obiektu:
  Dostęp otwarty
• Prawa: https://creativecommons.org/licenses/by-nd/4.0 ;
  Prawa autorskie (c) 2023 Jaśkowski B.M.
• Data:
  2023.07.09
• Typ:
  info:eu-repo/semantics/article;
  info:eu-repo/semantics/publishedVersion
• Język:
  angielski
• Źródło:
  Translational Research in Veterinary Science; Vol. 6 No. 1 (2023); 11;
  Translational Research In Veterinary Science; Tom 6 Nr 1 (2023); 11;
  2657-4489
• Format:
  application/pdf
• Wydawca:
  Nicolaus Copernicus University in Toruń
• Relacja: https://apcz.umk.pl/TRVS/article/view/63536/43185
• Temat i słowa kluczowe:
  OVS;
  progesterone programs;
  term failure;
  cows
• Identyfikator: https://apcz.umk.pl/TRVS/article/view/63536
• Dostawca danych:
  Akademicka Platforma Czasopism
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