scholarly journals Histomoníase em galinhas (Gallus gallus domesticus) de criações coloniais no sul do Brasil

2021 ◽  
Vol 15 (4) ◽  
pp. 370-375
Author(s):  
Rosimeri Zamboni ◽  
Taina Santos Alberti ◽  
Fabiano Rosa Venancio ◽  
Haide Valeska Scheid ◽  
Carolina Buss Brunner ◽  
...  

Relata-se a ocorrência de histomoníase em galinhas domésticas (Gallus gallus domesticus) de criações coloniais no sul do Brasil. Os casos ocorreram em duas propriedades, localizadas nos municípios de Santa Vitória do Palmar (propriedade 1) e Pelotas (propriedade 2). As aves afetadas, em ambas as propriedades, eram jovens e apresentaram emagrecimento, apatia e anorexia com taxa de mortalidade de aproximadamente 35% nos plantéis. Na propriedade 1, de um total de 35 aves, 12 apresentaram sinais clínicos evoluindo para morte, já na propriedade 2, de um total de 19 aves, 7 tiveram sinais clínicos e morreram. Na necropsia das aves, foram observados na superfície capsular e parênquima hepático nódulos branco-amarelados, multifocais a coalescentes, por vezes, com área central deprimida e circundados por halo pálido medindo até 2,0 mm. O ceco estava dilatado, com lesões elevadas, amareladas e multifocais, estendendo-se da mucosa à serosa, exibindo ainda com parede espessada contendo material caseoso na luz do órgão. Microscopicamente observou-se hepatite e tiflite piogranulomatosa necrosante com numerosos trofozoítos de Histomonas meleagridis intralesionais. O diagnóstico de histomoníase foi confirmado através dos achados macroscópicos e histopatológicos. Destaca-se a ocorrência de histomoníase como causa de mortalidade em aves de criação colonial na região sul do Brasil.

Animals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 777
Author(s):  
Korakot Nganvongpanit ◽  
Piyatida Kaewkumpai ◽  
Varankpicha Kochagul ◽  
Kidsadagon Pringproa ◽  
Veerasak Punyapornwithaya ◽  
...  

The black-bone chicken (Gallus gallus domesticus) is a breed of chicken that is commonly found in Thailand. This breed is known for having a number of black colored organs. Consumers have been notably attracted to the black-bone chicken breed for the characteristic darkness that is observed in many of its organs. However, the degree of darkness in all organs of the black-bone chicken is still in question. Importantly, there have not yet been any published reports on the distribution of melanin pigment in the organs of the black-bone chicken. This research study aims to examine the distribution of the melanin pigment in 33 organs of the Thai black-bone chicken. Ten black-bone chickens (five male, five female) were included in this study. Thirty-two organs including the brain, spinal cord, sciatic nerve, larynx, trachea, syrinx, lungs, heart, pericardium, aorta, brachial vein, kidney, cloaca, oviduct, testis, gastrocnemius muscle, femur, tongue, esophagus, crop, proventriculus, gizzard, duodenum, jejunum, ileum, cecum, pancreas, liver, gall bladder, omentum, abdominal fat, spleen, and skin were examined in this study. Histological sections taken from tissue samples of each of these organs were studied. The findings revealed that the presence of the melanin pigment was not significantly different (p > 0.005) between male and female specimens. Notably, the liver was the only organ in which the melanin pigment had not accumulated. Consequently, there was not a uniform pattern of melanin pigment accumulation throughout the organs of the chickens. The melanin pigment was present in all of the tissue layers of most organs, while the melanin pigment was found in only specific layers of some of the organs. In conclusion, the distribution of melanin pigmentation in the organs of each of the animals in this study was found to be different. However, in some tissue samples, such as those obtained from the liver, no accumulation of the melanin pigment was observed.


Author(s):  
Webster Leonardo Guimarães da Costa ◽  
Isa Marianny Ferreira Nascimento Barbosa ◽  
Débora Pereira Gomes do Prado ◽  
Natália Domann ◽  
Hanstter Hallison Alves Rezende

2020 ◽  
Vol 23 (4) ◽  
pp. 769-780 ◽  
Author(s):  
Vitor Hugo Bessa Ferreira ◽  
Maxence Barbarat ◽  
Flore Lormant ◽  
Karine Germain ◽  
Mathilde Brachet ◽  
...  

2013 ◽  
Vol 195 (1-2) ◽  
pp. 203-204
Author(s):  
Caroline Gracielle Torres Ferreira ◽  
Cláudio Mafra ◽  
Ana Carla Diógenes Suassuna Bezerra ◽  
Otávio Valério de Carvalho ◽  
Abelardo Silva ◽  
...  

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Aijuan Zheng ◽  
Anrong Zhang ◽  
Zhimin Chen ◽  
Shoaib Ahmed Pirzado ◽  
Wenhuan Chang ◽  
...  

Abstract Background Immunological stress decreases feed intake, suppresses growth and induces economic losses. However, the underlying molecular mechanism remains unclear. Label-free liquid chromatography and mass spectrometry (LC-MS) proteomics techniques were employed to investigate effects of immune stress on the hepatic proteome changes of Arbor Acres broilers (Gallus Gallus domesticus) challenged with Escherichia coli lipopolysaccharide (LPS). Results Proteomic analysis indicated that 111 proteins were differentially expressed in the liver of broiler chickens from the immune stress group. Of these, 28 proteins were down-regulated, and 83 proteins were up-regulated in the immune stress group. Enrichment analysis showed that immune stress upregulated the expression of hepatic proteins involved in defense function, amino acid catabolism, ion transport, wound healing, and hormone secretion. Furthermore, immune stress increased valine, leucine and isoleucine degradation pathways. Conclusion The data suggests that growth depression of broiler chickens induced by immune stress is triggered by hepatic proteome alterations, and provides a new insight into the mechanism by which immune challenge impairs poultry production.


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