scholarly journals Effects of X-Irradiation of a Part of the Body on Mortality Rate and on Histological Changes in the Goldfish, Carassius auratus

1968 ◽  
Vol 9 (3-4) ◽  
pp. 141-151
Author(s):  
Hisami ETOH ◽  
Yasuko HYODO-TAGUCHI ◽  
Takashi MARUYAMA
2010 ◽  
Vol 58 (1) ◽  
pp. 29-37 ◽  
Author(s):  
Ramasamy Harikrishnan ◽  
Chellam Balasundaram ◽  
Young-Gun Moon ◽  
Man-Chul Kim ◽  
Ju-Sang Kim ◽  
...  

Goldfish ( Carassius auratus ) weighing 13 ± 2 g were administered intramuscularly a sublethal dose (1.8 × 10 3 cfu/ml) of Aeromonas hydrophila to induce ulcerative dermatitis. On day 3 and day 6 after infection the fish were dip-treated (for 5 min/day) with a tri-herbal concoction of Curcuma longa, Ocimum sanctum and Azadirachta indica (1%). The LD 50 value was recorded at a concentration of 2.3 × 10 4 between 30 and 36 days after infection. In the infected untreated group the cumulative mortality was higher, while in the early-treated group (day 3) there was no mortality. In the late-treated group (6th day) the mortality increased to 23.3% on day 36. In the infected group the size of ulcers progressively increased from 43.3% of the body length on day 18 to 86.7% on day 36. In the early-treated fish the size of ulcers was 23.3% of the body length on day 18; by day 36 after treatment the ulcer had completely healed. In contrast, there was only a moderate recovery in the late-treated group. From the results it can be concluded that early tri-herbal treatment ensures successful recovery from ulcerative dermatitis induced by A. hydrophila .


1952 ◽  
Vol 3 (2) ◽  
pp. 126 ◽  
Author(s):  
RJ Affleck

The colours of nacreous (mottled) fish are usually mottled but specimens do occur in which only one kind of the black, orange, or yellow chromatophores is present, while some lack pigments over most of the body. The colours appear metallic, pearl, or matt depending on the presence or absence of reflecting tissue in two definite layers. The hues seen in these fish are black, smoke, blue, orange, yellow, blood-red, and silver, which occur singly or in combinations. These hues are produced by black, orange, and yellow pigments in chromatophores, silver reflectillg tissue, and haemoglobin in the blood. The presence of a yellow pigment — a carotenoid — is reported for the first time. Although the colour red has been reported no red pigment has ever been described. An intense orange pigment will produce a red effect on a pale blood-red background. The nacreous (mottled) group of the goldfish is intermediate between the metallic (scaled) and matt (transparent) groups with regard to the amount of reflecting tissue. The colours of these fish may not be used as criteria of the groups.


1973 ◽  
Vol 51 (2) ◽  
pp. 143-150 ◽  
Author(s):  
Melvin Weisbart

Goldfish injected intraperitoneally with 203Hg(NO3)2 lost mercury at an apparent constant rate resulting in a biological half-life of 568 h. Correlated with this loss was a linear increase in the amount of mercury in the water.The mercury-203 content in the tissues displayed four different responses.(1) Gall bladder, gonad, and spleen tissues showed no significant regressions.(2) Eye, kidney, and intestinal tissue manifested significant losses of mercury, but the rate of loss was not significantly different from that of the body as a whole.(3) Gill, heart, skin, and swim bladder tissues lost mercury at rates faster than the body as a whole.(4) Brain, liver, muscle, and head kidney tissues showed no significant losses of mercury.


PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3759
Author(s):  
Raghunath B. Shivappa ◽  
Larry S. Christian ◽  
Jerry M. Law ◽  
Gregory A. Lewbart

A study was carried out to assess the effect of Stress Coat® on slime production in goldfish (Carassius auratus) and koi (Cyprinus carpio). The study also investigated histological changes that might be associated with slime producing cells, and wound healing in koi. Several formulations of Stress Coat® were investigated and the results showed that polyvinylpyrrolidone (PVP), also known as povidone, an ingredient of Stress Coat®, when used alone, showed significantly higher slime production in goldfish than salt and Stress Coat® without PVP after 25 h. The results also showed that koi treated with compounds containing PVP showed better wound healing than those not exposed to PVP. Histology results showed no difference between compounds tested with regards to density and number of slime producing cells.


2019 ◽  
Vol 6 (2) ◽  
pp. 159
Author(s):  
Kismiyati, Nadia Ayu Fadila Asshaufi, Hari Suprapto

Abstract Goldfish (Carassius auratus) is one of the most popular freshwater fish, therefore they has a very great potential market. Increased effort in Goldfish (Carassius auratus) aquaculture industry, fish farmer also faced greater problems. One of it is disease caused by ectoparacites Lernaea cyprinacea. The predilection of Lernaea cyprinacea can be be directly visible, by the presence of parasites attached to the body surface, fins, gills, eyes and mouth of fish. Lernaea cyprinacea attack on fish can cause pathological change such as lesions and nodules on the skin and fins. This research was conducted in March-November 2013. Location of sampling conducted in Tulungagung East Java while Goldfish (Carassius auratus) pathological examination in the Laboratory of Faculty of Fisheries and Marine Airlangga University. The purpose of this study was to determine the predilection of Lernaea cyprinacea that mostly infested on Goldfish (Carassius auratus) and knowing the change of anatomical pathology in Goldfish (Carassius auratus) infested by Lernaea cyprinacea. The method used was a survey method with random sampling technique and change in anatomic pathology described by the scoring method. The result showed that the predilection of Lernaea cyprinacea mostly infested on Goldfish (Carassius auratus) on dorsal and caudal fin, anatomic pathology changes on Goldfish (Carassius auratus) that infested by Lernaea cyprinacea are abscess, haemorhage, laceration, and fins damaged


Author(s):  
Vjatscheslav Kuznetsov ◽  
Vladimir Kuznetsov

The article touches upon the problems of breeding goldfish Carassius Auratus (L.), abundance of juveniles, size and age composition of the catches and the growth of this species in small rivers (for example, the Kazanka River and the lower reaches of the Sviyaga River) in terms of stocking the Kuibyshev Reservoir by goldfish. It has been stated that the process of stocking small rivers with goldfish has much in common with that in the reservoir. Spawning in the Kazanka in 2016 proceeded in two stages, and the gonads contained the roe of 2 portions. The first mass spawning took place from 11 to 20 May, and the second spawning – from 11 to 20 June. Macrophytes, driftwood and washed away roots of trees served as substrate for spawning. During the reproduction period of the species in the river the proportion of females made 75.0%, males - 25.0%. In the lower reaches of the Sviyaga in the period of 1998-2001 the proportion of males in catches made 26.1-65.7%. The maximum number of goldfish larvae and fingerlings in the lower reaches of the Sviyaga was observed in 2007-2009 and in 2014. These years had a similar regime of water level, but different temperature conditions in the spring period. Males in the catches had smaller sizes and body weight, compared with females. In the Kazanka in 2013-2016 the average body length of females in catches ranged within 16.7-23.8 cm, and males – within 15.9-20.6 cm. The age composition of goldfish in the river in 2013 consisted of 4-8 summer fish of 2006-2008 generations. Among them prevailed individuals at the age of 6 (53.1%) of the 2006 generation. In 2014-2016 in the catches there were fish aged 6-9 years old, although there were individuals up to 15 years old. The body length of the similar aged individuals of both sexes was not significantly different. Student criterion between both sexes at different ages ranged from 0.06 to 0.84. Growth of individuals of different generations in 2007-2010 also did not differ reliably. Thus, the average body size of 6- year-old fish of these generations ranged from 17.7 to 18.1 cm. The growth of goldfish in different reaches of the Kuibyshev Reservoir was higher than in the Kazanka, but Fulton fatness coefficient in the river was lower. The average values of the fatness coefficient ranged from 3.24 to 3.63 in the river, and in the reservoir reaches they are from 2.93 to 3.07.


2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Mehmet Ates ◽  
Veysel Demir ◽  
Ragip Adiguzel ◽  
Zikri Arslan

The increased use of nanosized materials is likely to result in the release of these particles into the environment. It is, however, unclear if these materials are harmful to aquatic animals. In this study, the sublethal effects of exposure of low and high concentrations of titanium dioxide nanoparticles (TiO2NPs) on goldfish (Carassius auratus) were investigated. Accumulation of TiO2NPs increased from 42.71 to 110.68 ppb in the intestine and from 4.10 to 9.86 ppb in the gills of the goldfish with increasing exposure dose from 10 to 100 mg/L TiO2NPs. No significant accumulation in the muscle and brain of the fish was detected. Malondialdehyde as a biomarker of lipid oxidation was detected in the liver of the goldfish. Moreover, TiO2NPs exposure inhibited growth of the goldfish. Although there was an increase (8.1%) in the body weights of the goldfish for the control group, in the low and high exposure groups 1.8% increase and 19.7% decrease were measured, respectively. The results of this study contribute to the current understanding of the potential ecotoxicological effects of nanoparticles and highlight the importance of characterization of NPs in understanding their behavior, uptake, and effects in aquatic systems and in fish.


Animals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1808
Author(s):  
Hanan. S. Al-Khalaifah ◽  
Shimaa A. Amer ◽  
Dina M. M. Al-Sadek ◽  
Alshimaa A. Khalil ◽  
Eman M. Zaki ◽  
...  

The potential effects of cacao bean meal, Theobroma cacao L., (CBM) on the growth, health status, blood biochemical parameters, antioxidant, immune status, physiological parameters, female reproductive performance, and gonadal histological features of fantail goldfish (Carassius auratus, L.) were evaluated using a complete randomized block design with sex as a block. The trial lasted for 60 days. A total of 54 healthy fantail goldfish (36 broodstock females and 18 broodstock males) were randomly allocated into three treatments with supplementation of three levels of cocoa powder 0, 5, and 10 g kg−1 diet, CBM0, CBM5, and CBM10, respectively, with the sex ratio being four females:two males per replicate. The body weight gain and feed conversion ratio of males were increased in the CBM10 treatment (p < 0.05). The CBM10 diet improved relative feed costs (p < 0.05). Females fed on the CBM10 diet had an increase in the serum level of total protein (p = 0.001). Females fed on a diet supplemented with CBM5 showed a decrease in the serum level of triglyceride compared to females fed on CBM0 and CBM10 diets (p = 0.03). CBM10 diet increased the serum superoxide dismutase (SOD) activity of fish compared to CBM0 and CBM5 diets (p = 0.004). Serum levels of testosterone and estradiol were significantly increased in males fed on the CBM10 diet. The female reproductive performance was improved by CBM supplementation (p < 0.05). Ovarian histology exhibited increased granulation and follicle numbers after dietary CBM supplementation compared to the control treatment. Therefore, cacao bean meal can be used as a feed supplement in the diets of fantail goldfish for improving the growth, health status, and female reproductive performance, economic efficiency, and gonadal histological structure.


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