and remnants of yolk sac
were observed on several specimens of C.
Successful orthotopic liver transplantation for treatment ofa hepatic yolk sac
Pigmentation is unevenly distributed over the body, in the snout and in the upper part of the yolk sac
Newly hatched yolk sac
larvae were kept in the incubation tank with continuous flow of water for about two days or till the yolk of the yolk sac
larvae was absorbed.
Volume of the yolk sac
was estimated according to the formula below which assumes an oval-shaped yolk sac
(Blaxter & Hempel 1966; Cetta & Capuzzo 1982);
Key words: Pediatric; teratoma; testis tumor; yolk sac
Studying fish and reptiles, he traced their journey through the yolk sac
, embryo, and back, where he found that the cell population grew from 100 at the beginning to about 4000 by the time they reached the genital ridge.
It is a vestigial remnant of the original yolk sac
or vitello-intestinal duct (1) and was originally described by Johann F Meckel in 1809.
Ten to 20 days after hatching, the internal yolk sac
became exhausted, whereupon hatchlings were fed ad libitum on wild-caught zooplankton at a density of -90 organisms/L or with enriched adult Artemia (density, 50 organisms/L).
In all cases, ultrasound identified a gestational sac and yolk sac
consistent with the gestational age as measured by the last menstrual period," Dr.
The relative weight of yolk sac
was expressed as a percentage of body weight, while the relative weight of heart or liver was expressed on the basis of the yolk sac
-free chick weight.
The yolk sac
was present, measuring 5 cm in diameter, and its grayish-yellow content was sampled for aerobic culture.
The sublethal effects were indicative of stress and may have been causative factors in reduced larval survival; they included precocious hatch, smaller larval size with larger yolk sac
at hatch, and reduced growth rate.
The hypoblast grows outward to form a layer of tissue (primitive endoderm) that lines the blastocoele and eventually gives rise to the yolk sac
Twenty five micro-liters (10 mg/mL concentration) of the yolk sac
extract (pre or post) were mixed with 25 [micro]L of loading buffer (152 [micro]L laemmli sample buffer and 8 [micro]L 2-ME).