Intrafollicular oocyte transfer in cattle - a technical report

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62157124%3A16170%2F20%3A43878985" target="_blank" >RIV/62157124:16170/20:43878985 - isvavai.cz</a>

Alternative codes found

RIV/61384399:31160/20:00055597

Result on the web

<a href="https://actavet.vfu.cz/media/pdf/actavet_2020089010011.pdf" target="_blank" >https://actavet.vfu.cz/media/pdf/actavet_2020089010011.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2754/avb202089010011" target="_blank" >10.2754/avb202089010011</a>

Result language

angličtina

Original language name

Intrafollicular oocyte transfer in cattle - a technical report

Original language description

The aim of the study was to develop and evaluate the functionality of a new equipment for intrafollicular oocyte transfer (IFOT) in dairy cattle. The new system for IFOT is composed of the applicator, the aspirator, and the injector. After aspiration of oocytes, the IFOT set is inserted into the working tube of the ultrasound transducer holder, the content of the applicator can be injected into the preovulatory follicle via transvaginal ultrasonography by one operator. The function of instruments used for IFOT was firstly verified in laboratory conditions. Slaughterhouse oocytes filled into the instruments were injected into Petri dishes. The highest recovery rates in vitro (97.5%) were achieved when the applicator was stored with the needle in a downward position. Synchronized Holstein heifers were used for in vivo test. Intrafollicular injection of saline (n = 9) was performed to find whether ovulation is affected by the injection. Then IFOTs of phosphate buffered saline with 20 oocytes (n = 21) were performed into the preovulatory follicles followed by 7-day-old embryo collection. Total ovulation rates were 86.7% (26/30). Total recovery rates (oocytes + embryos) were 23.1%, embryo recovery rates were 10.1%. The new instrument allows for the loading of oocytes and easy transportation to recipients, and also allows IFOT to be performed by one person in field conditions. The method does, however, need further investigation.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

40301 - Veterinary science

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Acta veterinaria Brno

ISSN

0001-7213

e-ISSN

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Volume of the periodical

89

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

7

Pages from-to

11-17

UT code for WoS article

000529064300002

EID of the result in the Scopus database

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