Results: 6

Histomorphological structure of the Bursa cloacalis (Bursa of Fabricius) in young Leiothrix lutea: a comparative study using light microscopy and transmission electron microscopy

Int. j. morphol; 39 (6), 2021
SUMMARY: This study aimed to investigate the microstructure and ultrastructure of the Bursa cloacalis (Bursa of Fabricius) (BC) in young Leiothrix lutea at various days of age (a few days after hatching) using light microscopy and transmission electron microscopy. The bird BC was sampled at 1, 5, 7, and ...

Evaluation of bursal lymphoid depletion: comparison between the conventional histology method and digital lymphocyte depletion evaluation system

Pesqui. vet. bras; 34 (supl.1), 2014
Fifty-five bursa of Fabricius (BF) were evaluated by optical microscopy for three different avian histopathologists (H1, H3 and H4) to determine the degree of lymphoid depletion. One histologist evaluated the same slides at two different times (H1 and H2) with four-months interval between the observation...

Distribution and Quantification of Lymphocytes in the Major Lymphoid Organs of Naturally Gumboro Infected Broilers

Int. j. morphol; 30 (4), 2012
Gumboro disease is caused by the infectious bursal disease virus (IBDV) which rapidly destroys immature B-lymphocytes of bursa of Fabricious, and causes immune suppression and high mortality in commercial broiler farms in Bangladesh. To investigate the possible effect of IBDV on lymphocytes and its distr...

Vascularizaçäo arterial da bolsa cloacal em Gallus gallus domesticus (matrizes de corte Avian Farms)
Arterial vascularization of the cloacal bursa in Gallus gallus domesticus (breeding stoch of the Avian Farms linage)

Estudou-se em trinta exemplares de Gallus gallus domesticus da linhagem Avian Farms, fêmeas, com idades entre 10 e 12 semanas, a origem, o número e a ordenaçäo dos vasos arteriais da bolsa cloacal, mediante injeçäo dos sistemas vasculares arteriais das aves com soluçäo aquosa de Neoprene Látex 4...

Irrigaçäo da bolsa cloacal, em aves reprodutoras, da linhagem Peterson (Gallus gallus domesticus)
Irrigation of the cloacal bursa in breeding stoch of the Peterson linage (Gallus gallus domesticus)

Estudaram-se em 30 exemplares de matrizes pesadas de corte machos da linhagem Peterson (Gallus gallus domesticus), com idade variando de 10 a 12 semanas, a origem, o número e a ordenaçäo dos vasos arteriais da bolsa cloacal, um dos órgäos responsáveis pela produçäo de respostas humorais nas aves....

Infectious bursal disease: a case reprot
Doença infecciosa bursal: estudo de caso

Este trabalho descreve um surto de Doenças Infecciosas Bursal (DIB) ocorrendo em frangos de corte oriundos de reprodutoras imunizadas, alojadas em quatro granjas vizinhas e vacinadas ou näo vacinadas com vírus da DIB. Mortalidade elevada, mau desempenho e ocorrência de infecç*es múltiplas foram os ...