Betekenis van:
zona pellucida

zona pellucida
Zelfstandig naamwoord
    • thick membrane around the mammalian ovum; can be penetrated by one sperm in the fertilization process; usually remains around the fertilized egg until it is implanted in the wall of the uterus

    Hyperoniemen


    Voorbeeldzinnen

    1. Embryos(except embryos subject to penetration of the zona pellucida)
    2. they were produced without penetration of the zona pellucida;
    3. Subjected to penetration of zona pellucida (a) yes/no (1)
    4. the embryos were produced without penetration of the zona pellucida,
    5. Category: specify if (a) penetration or (b) non penetration of zona pellucida.
    6. Produced embryos (1) (a) Derived by in vitro fertilisation (b) Subjected to penetration of zona pellucida
    7. Category: specify whether there is (a) penetration or (b) non-penetration of zona pellucida.
    8. Category: specify if a) penetration or b) non penetration of zona pellucida.
    9. In the light of the risk assessment carried out by the IETS and in line with the recommendations of the OIE, the conditions governing imports of in vivo derived bovine embryos should be simplified while stricter animal health requirements should be maintained for imports of in vitro produced embryos, with special restrictions where the zona pellucida has been damaged during the process.
    10. underwent an agent identification test, carried out in accordance with the Manual of Diagnostic Tests and Vaccines for Terrestrial Animals on a blood sample taken on the day of collection or the day of slaughtering and giving negative results — the embryos having been produced, in the latter case, without penetration of the zona pellucida (1);
    11. were kept during a seasonally free period or protected from the competent vector Culicoides for at least 60 days prior to, and during, the collection of the oocytes and the embryos were produced without penetration of the zona pellucida, except if the donors underwent a serological test to detect antibodies to the bluetongue virus group, carried out in accordance with the Manual of Diagnostic Tests and Vaccines for Terrestrial Animals between 21 and 60 days after collection and giving negative results, and the embryos were stored for at least 30 days (1), or
    12. or [II.1.2. has not been free from foot and mouth disease during the 12 months immediately prior to collection of the ova/embryos (1) and/or carried out vaccination against foot-and-mouth disease during that period and the donor females come from holdings on which no animal was vaccinated against foot-and-mouth disease during 30 days prior to collection and no animal of susceptible species showed clinical signs of foot-and-mouth disease during the 30 days prior to, and at least 30 days after, the ova/embryos (1) were collected and the ova/embryos (1) were not subjected to penetration of zona pellucida;]