allantoic fluid


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al·lan·to·ic flu·id

the fluid within the allantois.

al·lan·to·ic flu·id

(al'an-tō'ik flū'id)
The liquid within the allantoic cavity.

allantoic fluid

Fluid found in the fetal membrane that develops from the yolk sac.
See also: fluid
References in periodicals archive ?
Cytopathic effect was evident at 48-72 hours after inoculation of LMH and Vero cell cultures with the allantoic fluid from dead embryos.
Biochemical profile of ovine amniotic and allantoic fluids. Tamilnadu J.
As shown in Figure 2a, the virus sample prepared by centrifugation at sucrose chosen was found to be very pure compared to infected crude allantoic fluid. The transmission electron microscopic observation (Jeol T-100) of the negative stained virus samples supported the purity of the viruses and gave information about the morphology of purified virus particles (Figure 2b).
In allantoic fluid, lactic acid was only found after day 9 of incubation.
The 44th passaged virus was inoculated into five 9-11 days old embryonated SPF fowl eggs and allantoic fluids were harvested after 5 days of post inoculation.
Spot Agglutination Test: A drop of allantoic fluid was placed on a glass slide and mixed with an equal volume of 5% freshly prepared washed chicken RBC's (Tiwari et al, 1996)
A correlation coefficient was employed to diagnose relationship between volume of allantoic fluid and initiation of calving.
Infectious allantoic fluid ([10.sup.6] [EID.sub.50]) generated using each type of reassortant was intranasally administrated to three chickens each.
The reference strains of influenza A virus (A/PR/8/34-H1N1 and A/Udorn/307/72-H3N2) procured from CDC, Atlanta, GA, USA, and the pandemic H1N1-2009 (A/Delhi/1/2009-H1N1) isolated at our laboratory, to serve as positive control, were propagated to sufficiently high titres in 10-days old embryonated chicken eggs and the virus-containing allantoic fluid was harvested and stored in -80[degrees]C until use.
The allantoic fluid, about 5 mL in quantity was aspirated from every embryonated egg in to a 10 mL pipette and poured in to a sterilized ampoule at - 20oC (Arshad et al., 1994).
Allantoic fluid (AF) from two eggs selected randomly was harvested at an hourly interval and stored at -70[degrees]C.