Results 241 to 250 of about 16,405 (273)
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In vitro organ culture of embryonic bursa of fabricius
Developmental & Comparative Immunology, 1990An in vitro method for organ culture of embryonic bursa of Fabricius is presented. It is shown that bursa cells proliferate in in vitro culture as evidenced by [3H]-thymidine incorporation. We assessed the expression of B-cell alloantigen (Bu-la and Bu-lb), class I (B-F) and class II (B-L) antigens of chicken major histocompatibility complex (MHC), and
Jerzy S. Nowak +2 more
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Histone fractions in chicken bursa of fabricius and thymus
Comparative Biochemistry and Physiology Part A: Physiology, 1973Abstract 1. 1. Whole histone and the five main histone fractions were isolated from chicken bursa of Fabricius and thymus. 2. 2. The proteins were all characterized by polyacrylamide gel electrophoresis and amino acid analyses and compared with the corresponding fractions from calf thymus. 3. 3.
N Sotirov, E.W Johns
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Cryptosporidiosis of the bursa of fabricius and trachea in broilers
Avian Pathology, 1982Cryptosporidial parasitisation of the bursa of Fabricius and trachea is described in broilers. The response in both tissues was of epithelial hyperplasia and inflammatory cell infiltration. No clinical signs were reported.
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Bursa of Fabricius, a Source of Bluecomb Infectious Agent
Avian Diseases, 1972SUMMARY Cell-free filtrates were prepared from bursae of Fabricius collected from bluecomb-infected turkey poults. Such filtrates were found uniformly infective when administered orally to bluecomb- susceptible poults under 7 days old. Evidence is presented that the bursa is a more satisfactory source of bluecomb agent for laboratory study than is the ...
Panigrahy B, Nagi Sa, Hall Cf
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Particles Resembling Circovirus in the Bursa of Fabricius of Pigeons
Avian Diseases, 1994Histological examination of the bursae from 12 pigeons under 4 months old revealed basophilic globular inclusion bodies, 5 to 25 microns in diameter, in the cytoplasm and the nuclei of the various bursal follicular cells. Electron microscopy of these inclusions revealed large electron-dense areas containing non-enveloped icosahedral viral particles, 14-
J. S. Jeffrey +6 more
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Some Observations on the Bursa of Fabricius in Chukars
The Journal of Wildlife Management, 1962This paper reports a method to distinguish birds-of-the-year, hereinafter referred to as juveniles, from adults in chukars (Alectoris graeca) during the fall by measuring the depth of the bursa. When young chukars have completed their post-juvenal molt, normally before the end of October, they are difficult to distinguish accurately from adults by ...
Howard Campbell, Roy E. Tomlinson
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Sex steroid sensitivity of developing bursa of Fabricius.
The International Journal of Developmental Biology, 1989Sex steroid sensitivity of the bursa of Fabricius (BF) was studied from the early embryonic time until its regression. Expression of progesterone receptor (PR) served as a dual marker: first, as a marker for progesterone sensitivity and second, as a marker for estrogen action, since it is an estrogen-induced protein.
T Ylikomi, P Tuohimaa
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Effects of Bisphenol A and Diethylstilbestrol on the Involution of Bursa of Fabricius in the Hens
, 2013The bursa of Fabricius is a primary lymphoid organ in birds responsible for B lymphocyte maturation. Sex steroid hormones influence regression of the bursa of Fabricius.
F. Yiğit, A. Aktaş, S. Dağlioğlu
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