Results 41 to 50 of about 9,879 (228)

Ontogenic development of immunoglobulins (Igs)-positive lymphocytes in the lymphoid organs of native chickens of Bangladesh

open access: yesInternational Journal of Veterinary Science and Medicine, 2013
The first appearance, distribution and frequency of immunoglobulins (Igs)-positive lymphocytes were investigated in the lymphoid organs of native chicken’s embryos from embryonic day (ED) 8 to ED 20.
Md. Nabiul Islam   +4 more
doaj   +1 more source

Age-related histology of the bursa of Fabricius in bronze turkeys (Meleagris meleagris gallopavo)

open access: yesBulgarian Journal of Veterinary Medicine, 2022
The aim of the present study was to establish age-dependent histological changes occurring in the bursa of Fabricius of bronze turkeys. To this end, histological preparations from 60 clinically healthy birds (30 males and 30 females) were examined by ...
G. Penchev
doaj   +1 more source

The Presence of Immunoglobulin in the Bursa of Fabricius ,

open access: yesPoultry Science, 1967
Abstract Three-week-old birds were immunized with 40 mg. bovine serum albumin (BSA) per Kg. body weight. The bursa of Fabricius was removed 30 minutes after BSA injection and from another group of birds at 24-hour intervals for 5 consecutive days. The bursa was frozen −25°C. and sectioned in a cryostat (−25°C.) at 4 mμ.
Sandra Whatley, Bruce Glick
openaire   +3 more sources

Determine the weight of thymus, bursa of Fabricius and spleen and its ratio to body weight in some diseases of broilers [PDF]

open access: yesMirror of Research in Veterinary Sciences and Animals, 2014
Evaluation of lymphoid organs weight and determination of their weight: body weight ratio is the most used model to estimate protection rate given by vaccines against some diseases.
H. M. Majed , H. Sahar
doaj  

Effect of Cordyceps militaris Hot Water Extract on Immunomodulationassociated Gene Expression in Broilers, Gallus gallus

open access: yesThe Journal of Poultry Science, 2019
Cordyceps militaris is a well-known Chinese medicinal fungus that has been used as a nutraceutical food in several Asian countries. Cordycepin (3′-deoxyadenosine), a secondary metabolite produced from Cordyceps militaris, has been demonstrated to exert a
Yeong-Hsiang Cheng   +2 more
doaj   +1 more source

Cryptosporidium spp. in bursa of Fabricius of broiler chickens from Uruguay

open access: yesCiência Rural, 2015
The presence of Cryptosporidium spp. was detected in broiler chickens of 32-40 days of age, colonizing the bursa of Fabricius. The histologic study with haematoxylin and eosin staining was done on specimens of trachea, complete intestinal tract and bursa.
Susana Casanova   +2 more
doaj   +1 more source

Effect of dietary dexamethasone on the morphologic and morphometric adaptations in the lymphoid organs and mortality rate in broilers

open access: yesVeterinary Medicine and Science, 2023
Background Thymus, bursa of Fabricius and spleen are the major lymphoid organs of avian species that plays a crucial role in their immunity. Though glucocorticoids are reportedly used as growth promoters, they also suppress the immune system.
Rafiqul Islam   +3 more
doaj   +1 more source

A transmissible disease of the bursa of Fabricius of ducks [PDF]

open access: yesAvian Pathology, 1994
Longitudinal surveys of commercial Pekin ducks from four farms with a history of poor flock performance and high mortality rate showed that there was lymphoid depletion of the bursa of Fabricius in most ducks selected from 7 days of age onward. Such lesions were not present in Pekin ducks from a farm with a history of good flock performance and low ...
J. A. Smyth, M. S. McNulty
openaire   +3 more sources

The role of the bursa of Fabricius in the immune response to vaccinal antigens and the development of immune tolerance in chicks (Gallus domesticus) vaccinated at a very young age

open access: yesPoultry Science, 2017
&NA; Vaccination is recognized to be the most cost‐effective means of preventing, controlling, and even eradicating infectious diseases. Conventional poultry are vaccinated through various routes including eye/nose drops, drinking water, vent brush, or ...
M. E. Ifrah   +3 more
semanticscholar   +1 more source

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