Acta Veterinaria Hungarica
Volume/Issue:
Volume 58: Issue 1
The influence of transfer gun passage time through the uterine cervix on pregnancy rate in recipient heifers
Authors:
Jędrzej Jaśkowski University of Life Sciences Department of Veterinary Agriculture Wojska Polskiego 52 60-628 Poznań Poland

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Krzysztof Urbaniak University of Life Sciences Department of Veterinary Agriculture Wojska Polskiego 52 60-628 Poznań Poland

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Paweł Antosik University of Life Sciences Department of Veterinary Agriculture Wojska Polskiego 52 60-628 Poznań Poland

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Renata Włodarczyk University of Life Sciences Department of Veterinary Agriculture Wojska Polskiego 52 60-628 Poznań Poland

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Pages:
125–132
Online Publication Date:
16 Feb 2010
Publication Date:
01 Mar 2010
Article Category:
Journal Article
DOI:
https://doi.org/10.1556/avet.58.2010.1.13
Keywords:
Recipient heifers; pregnancy rate; time; passage of transfer gun
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The influence of passage time of the transfer gun through the uterine cervix and body to the embryo insertion site on pregnancy rate was analysed in 248 recipient heifers (mean age: 15–17 months). Embryos (90 fresh and/or 88 and 70 frozen in glycerol and ethylene glycol, respectively, grades 4 and 5, stage 1 or 2) were transferred to the ipsilateral uterine horn on day 7. Two different transfer guns were used in this experiment: a sterilisable steel transfer instrument to be used without sheaths with a removable tip made of gold-plated stainless steel (Wörrlein Minitüb) or a transfer stylet with sheaths with a metal tip and a side opening (Cassou gun, IMV Technologies). The time of passage of the instruments through the uterine cervix and body to the site of embryo deposition in the uterine horn was measured in the study. In order to randomise the risk of errors, all manipulations were carried out by the same experienced operator. The average time needed for the insertion of embryos into the uterus was 50.6 seconds (s) and it was longer for the transfer gun with sheaths than for the metal-tipped transfer gun (60.1 and 40.8 s, respectively) (P < 0.001). The average conception rate was 45.6%. If the time needed to insert embryos into the uterus was 10-60 s, the conception rate was 53.4% (up to 20, 21–30, 31–40, 41–50 and 51–60 s − 57.7, 52.5, 50, 51.5 and 50%, respectively). In contrast, if the time needed to insert the embryo in the uterine horn was longer than 60 s, the conception rate was 20.4% (61–80, 80.1–120 and > 120 s − 28.0, 6.0 and 24.9%, respectively). Thus, it cannot be excluded that the type of the applied transfer gun may influence pregnancy rate in recipient cows due to its effect on cervical passage time.

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Cover Acta Veterinaria Hungarica
Acta Veterinaria Hungarica
Print ISSN:
0236-6290
Online ISSN:
1588-2705
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Senior editors

Editor-in-Chief: Ferenc BASKA

Editorial assistant: Szilvia PÁLINKÁS

 

Editorial Board

  • Mária BENKŐ (Acta Veterinaria Hungarica, Budapest, Hungary)
  • Gábor BODÓ (University of Veterinary Medicine, Budapest, Hungary)
  • Béla DÉNES (University of Veterinary Medicine, Budapest Hungary)
  • Edit ESZTERBAUER (Veterinary Medical Research Institute, Budapest, Hungary)
  • Hedvig FÉBEL (University of Veterinary Medicine, Budapest, Hungary)
  • László FODOR (University of Veterinary Medicine, Budapest, Hungary)
  • János GÁL (University of Veterinary Medicine, Budapest, Hungary)
  • Balázs HARRACH (Veterinary Medical Research Institute, Budapest, Hungary)
  • Peter MASSÁNYI (Slovak University of Agriculture in Nitra, Nitra, Slovak Republic)
  • Béla NAGY (Veterinary Medical Research Institute, Budapest, Hungary)
  • Tibor NÉMETH (University of Veterinary Medicine, Budapest, Hungary)
  • Zsuzsanna NEOGRÁDY (University of Veterinary Medicine, Budapest, Hungary)
  • Dušan PALIĆ (Ludwig Maximilian University, Munich, Germany)
  • Alessandra PELAGALLI (University of Naples Federico II, Naples, Italy)
  • Kurt PFISTER (Ludwig-Maximilians-University of Munich, Munich, Germany)
  • László SOLTI (University of Veterinary Medicine, Budapest, Hungary)
  • József SZABÓ (University of Veterinary Medicine, Budapest, Hungary)
  • Péter VAJDOVICH (University of Veterinary Medicine, Budapest, Hungary)
  • János VARGA (University of Veterinary Medicine, Budapest, Hungary)
  • Štefan VILČEK (University of Veterinary Medicine in Kosice, Kosice, Slovak Republic)
  • Károly VÖRÖS (University of Veterinary Medicine, Budapest, Hungary)
  • Herbert WEISSENBÖCK (University of Veterinary Medicine, Vienna, Austria)
  • Attila ZSARNOVSZKY (Szent István University, Gödöllő, Hungary)

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Acta Veterinaria Hungarica
Language English
Size A4
Year of
Foundation		 1951
Volumes
per Year		 1
Issues
per Year		 4
Founder Magyar Tudományos Akadémia
Founder's
Address		 H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-6290 (Print)
ISSN 1588-2705 (Online)

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