scholarly journals Distribution of α-transducin and α-gustducin immunoreactive cells in the chicken (Gallus domesticus) gastrointestinal tract

2016 ◽  
Vol 95 (7) ◽  
pp. 1624-1630 ◽  
Author(s):  
M. Mazzoni ◽  
C. Bombardi ◽  
C. Vallorani ◽  
F. Sirri ◽  
R. De Giorgio ◽  
...  
2020 ◽  
Vol 216 ◽  
pp. 107936
Author(s):  
Marisa Caixeta Valadão ◽  
Lorendane Millena de Carvalho ◽  
Ítalo Stoupa Vieira ◽  
Paulo Henrique Neves ◽  
Vinícius Monteiro Ferreira ◽  
...  

2019 ◽  
Vol 2 (1) ◽  
pp. 9
Author(s):  
Talita Yuanda Reksa ◽  
Poedji Hastutiek ◽  
Hana Eliyani ◽  
Kusnoto Kusnoto ◽  
Mufasirin Mufasirin

The aim of this research is to identify the prevalence of gastrointestinal track protozoa in local chicken (Gallus domesticus) located in Kramat Village, District of Bangkalan, Bangkalan Regency using fecal examination. The number of sample used were 140 including 70 samples from rice fields location and 70 samples from fisheries location. The result showed that 54 (38.6%) local chickens were infected by species of Eimeria; E. acervulina (2.5%), E. brunetti (22.8%), E. maxima (46.8%), E. mitis (1.3%), E. necatrix (22.8%), E. praecox (2.5%), and E. tenella (1.3%). The result was made of 16 (22.9%) local chickens in rice fields location and 38 (54.3%) local chickens in fisheries location. The infection of Eimeria sp. on male local chickens were 24 (34.3%) while on the female local chickens were 30 (42.9%). Chi Square Test showed that there was a highly significant difference toward the prevalence in rice fields and fishery locations (p<0.01), but there was no significant difference toward the prevalence of male and female local chickens (p>0.05).


2018 ◽  
Vol 97 (11) ◽  
pp. 4063-4072
Author(s):  
M Mazzoni ◽  
T B Karunaratne ◽  
F Sirri ◽  
M Petracci ◽  
R De Giorgio ◽  
...  

1985 ◽  
Vol 6 (2) ◽  
pp. 52-58 ◽  
Author(s):  
Susan T. Bagley

AbstractThe genus Klebsiella is seemingly ubiquitous in terms of its habitat associations. Klebsiella is a common opportunistic pathogen for humans and other animals, as well as being resident or transient flora (particularly in the gastrointestinal tract). Other habitats include sewage, drinking water, soils, surface waters, industrial effluents, and vegetation. Until recently, almost all these Klebsiella have been identified as one species, ie, K. pneumoniae. However, phenotypic and genotypic studies have shown that “K. pneumoniae” actually consists of at least four species, all with distinct characteristics and habitats. General habitat associations of Klebsiella species are as follows: K. pneumoniae—humans, animals, sewage, and polluted waters and soils; K. oxytoca—frequent association with most habitats; K. terrigena— unpolluted surface waters and soils, drinking water, and vegetation; K. planticola—sewage, polluted surface waters, soils, and vegetation; and K. ozaenae/K. rhinoscleromatis—infrequently detected (primarily with humans).


Author(s):  
C.D. Fermin ◽  
M. Igarashi

Otoconia are microscopic geometric structures that cover the sensory epithelia of the utricle and saccule (gravitational receptors) of mammals, and the lagena macula of birds. The importance of otoconia for maintanance of the body balance is evidenced by the abnormal behavior of species with genetic defects of otolith. Although a few reports have dealt with otoconia formation, some basic questions remain unanswered. The chick embryo is desirable for studying otoconial formation because its inner ear structures are easily accessible, and its gestational period is short (21 days of incubation).The results described here are part of an intensive study intended to examine the morphogenesis of the otoconia in the chick embryo (Gallus- domesticus) inner ear. We used chick embryos from the 4th day of incubation until hatching, and examined the specimens with light (LM) and transmission electron microscopy (TEM). The embryos were decapitated, and fixed by immersion with 3% cold glutaraldehyde. The ears and their parts were dissected out under the microscope; no decalcification was used. For LM, the ears were embedded in JB-4 plastic, cut serially at 5 micra and stained with 0.2% toluidine blue and 0.1% basic fuchsin in 25% alcohol.


Author(s):  
César D. Fermin ◽  
Dale Martin

Otoconia of higher vertebrates are interesting biological crystals that display the diffraction patterns of perfect crystals (e.g., calcite for birds and mammal) when intact, but fail to produce a regular crystallographic pattern when fixed. Image processing of the fixed crystal matrix, which resembles the organic templates of teeth and bone, failed to clarify a paradox of biomineralization described by Mann. Recently, we suggested that inner ear otoconia crystals contain growth plates that run in different directions, and that the arrangement of the plates may contribute to the turning angles seen at the hexagonal faces of the crystals.Using image processing algorithms described earlier, and Fourier Transform function (2FFT) of BioScan Optimas®, we evaluated the patterns in the packing of the otoconia fibrils of newly hatched chicks (Gallus domesticus) inner ears. Animals were fixed in situ by perfusion of 1% phosphotungstic acid (PTA) at room temperature through the left ventricle, after intraperitoneal Nembutal (35mg/Kg) deep anesthesia. Negatives were made with a Hitachi H-7100 TEM at 50K-400K magnifications. The negatives were then placed on a light box, where images were filtered and transferred to a 35 mm camera as described.


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