Histopathological changes caused by the metacestodes of Neogryporhynchus cheilancristrotus (Wedl, 1855) in the gut of the gibel carp, Carassius gibelio

2005 ◽  
Vol 53 (1) ◽  
pp. 45-52 ◽  
Author(s):  
K. Molnár
Keyword(s):  
Connective Tissue ◽  
Direct Contact ◽  
Anterior Part ◽  
Water Reservoir ◽  
Host Tissue ◽  
Gibel Carp ◽  
Histopathological Changes ◽  
Host Reaction ◽  
Carassius Gibelio ◽  
Surrounding Connective Tissue

Metacestodes of Neogryporhynchus cheilancristrotus (Wedl, 1855) were found in the gut of some gibel carp (Carassius gibelio) specimens from a Hungarian water reservoir. Location of metacestodes in the freshly opened gut was marked with disseminated, red-coloured, pinhead-sized nodules in the anterior part of the intestine. In histological sections, metacestodes were found in a hole inside the propria layer of the intestinal folds. The worms were in direct contact with the host tissue without being encapsulated as a result of host reaction. In some specimens with extruded rostellum the rostellar hooks were bored into the host tissue and suckers grabbed pieces of the surrounding connective tissue. Around the worms, congested capillaries and formation of macrophages were seen in the lysed connective tissue.

scholarly journals EXPERIMENTAL STUDIES ON HETEROPLASTIC BONE FORMATION

1920 ◽  
Vol 32 (6) ◽  
pp. 745-766 ◽  
Author(s):  
Goichi Asami ◽  
William Dock
Keyword(s):  
Connective Tissue ◽  
Bone Formation ◽  
Direct Contact ◽  
Endochondral Ossification ◽  
Experimental Studies ◽  
Rabbit Kidney ◽  
Transitional Epithelium ◽  
Ear Cartilage ◽  
Calcium Deposits ◽  
New Formation

1. Bone formation in the rabbit kidney with ligated vessels takes place (a) through the activity of young fibroblasts which accumulate to form a membrane-like structure; (b) subsequently by direct ossification of hyaline connective tissue in continuity with preformed bone; and (c) through erosion of lime placques by granulating tissue and laying down of lamellar bone by cells derived from fibroblasts. 2. Bone formation in the rabbit kidney begins not in direct contact with calcium deposits, but in the loose vascular connective tissue close under the transitional epithelium of the calices. 3. With autotransplanted ear cartilage of the rabbit there is an active new formation of cartilage in the connective tissue which surrounds the transplants, and the bone is formed by the fibroblasts from the perichondrium which erode and invade the calcified areas in this new cartilage. 4. The process of bone formation in the kidney is similar to that found in normal membranous ossification, while with the transplanted ear cartilage the process is identical with endochondral ossification.

Heterozygous depletion of pik3r1 improves growth and feed conversion efficiency in Gibel carp (Carassius gibelio)

Aquaculture ◽  
2021 ◽  
pp. 737207
Author(s):  
Jianfei Huang ◽  
Chuang Shi ◽  
Yanping Gao ◽  
Jingzhi Su ◽  
Yuqin Shu ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
Gibel Carp ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
Carassius Gibelio

scholarly journals Characterization of Virulence Properties of Aeromonas veronii Isolated from Diseased Gibel Carp (Carassius gibelio)

2016 ◽  
Vol 17 (4) ◽  
pp. 496 ◽  
Author(s):  
Jingjing Sun ◽  
Xiaojun Zhang ◽  
Xiaojian Gao ◽  
Qun Jiang ◽  
Yi Wen ◽  
...  
Keyword(s):  
Gibel Carp ◽  
Aeromonas Veronii ◽  
Carassius Gibelio ◽  
Virulence Properties

scholarly journals Effect of Breed and Age on Histopathological Changes in Pig M. Semimembranosus

2012 ◽  
Vol 12 (3) ◽  
pp. 311-321 ◽  
Author(s):  
Dorota Wojtysiak ◽  
Katarzyna Połtowicz ◽  
Władysław Migdał
Keyword(s):  
Connective Tissue ◽  
Age Groups ◽  
Histopathological Change ◽  
Histopathological Changes ◽  
Age Changes ◽  
Large White ◽  
Fibre Size ◽  
Giant Fibres ◽  
Fibre Shape ◽  
Selection Of

Effect of Breed and Age on Histopathological Changes in Pig M. SemimembranosusThe aim of the study was to determine the type and extent of histopathological changes in m. semimembranosus of Polish Landrace (PL), Polish Large White (PLW), Duroc, Pietrain, and Puławska pigs at 60, 90, 120, 150, 180 and 210 days of age. Changes in fibre size (atrophy, hypertrophy - giant fibres), changes in fibre shape (angular fibres), degenerative lesions (necrosis with phagocytosis) and connective tissue hypertrophy were evaluated. The presence of giant fibres was the only histopathological change observed in all age groups of PL, PLW, Duroc and Pietrain pigs, with the percentage of pigs with this type of pathology and the frequency of giant, atrophic and angular fibres increasing significantly with age. In Puławska pigs, giant fibres were only found in the oldest pigs aged 210 days. In these animals, giant fibres as well as atrophic fibres (at 180 and 210 days of age) and angular fibres (at 120, 150, 180 and 210 days of age) occurred in the smallest number of animals and were least extensive. Meanwhile, Pietrain pigs were characterized by a greater number of animals, a significantly greater proportion of giant fibres in all analysed age groups, and a greater proportion of atrophic fibres at 180 and 210 days of age compared to the other pig breeds under analysis. For connective tissue hypertrophy and necrosis with phagocytosis, the changes were not extensive. It is concluded that both the advancing age of the animals and selection of the pigs for increased leanness significantly increases the incidence of histopathological changes in muscle tissue, which may directly translate into pork quality.

scholarly journals Population Structure and Some Growth Properties of Gibel Carp (Carassius gibelio) in a Mesotrophic Lake

2016 ◽  
Vol 8 (3) ◽  
pp. 286-291 ◽  
Author(s):  
Hakki DERELI ◽  
Ezgi DİNÇTÜRK
Keyword(s):  
Population Structure ◽  
Trophic Status ◽  
Gibel Carp ◽  
Trophic State Index ◽  
Von Bertalanffy ◽  
Total Length ◽  
Carassius Gibelio ◽  
Mesotrophic Lake ◽  
Growth Properties ◽  
Lake Beysehir

The hereby study investigated gibel carp (Carassius gibelio) in a mesotrophic lake (Lake Beyşehir, Turkey) from April 2013 to March 2014, in order to outline population structure and some growth properties of the species. Two water quality variables (Chlorophyll-a, Trophic State Index (TSI)) were detected seasonally to define trophic status of the lake. Length and weight distributions, length - weight relationship, sex ratio, gonadosomatic index (GSI), condition factor (CF) and von Bertalanffy equation were calculated for C. gibelio sampled monthly. Trophic status of the lake was defined as mesotrophic. Total length and weight of C. gibelio samples was determined in the range of 8.5 and 28.4 cm and 15 and 408 g, respectively. Mean total length and weight of individuals were calculated as 17.5 ± 2.37 cm and 88.6 ± 39.02 g, respectively. There was a negative allometry between length and weight for C. gibelio. The fish samples were composed of 52% females and 48% males, between II and VII years old. Spawning period of the species occurred between April and June after GSI values reached their maximum in March. The CF values were validated between 1.5-1.7 besides the mean rate of females and males were 1.6 and 1.5, respectively. The parameters of von Bertalanffy equation were calculated as L∞: 19.8 cm, W∞: 652.9 gr, k: 0.934. In conclusion, C. gibelio has almost lost the economic value since the individuals are smaller than market size (≥ 250 g), probably due to lack of nutrients/mesotrophic situation of Lake Beyşehir.

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