Change of Various Characteristics between Spawning and Non-spawning Season in Diploid and Induced Triploid Far Eastern Catfish, Silurus asotus

Lim, Seongyop; Gil, Hyun Woo; Park, In-Seok

doi:10.12717/dr.2017.21.3.275

Cited by 5 publications

(4 citation statements)

References 16 publications

(21 reference statements)

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“…And the fish is nocturnal so it active night and it is carnivorous fish so it mostly predates not only crustaceans but also aqatic animals. The fish formerly inhabited rivers in Manchuria, Japan, Taiwan, China and Northeast Asia, and elsewhere; and it is widely distributed throughout freshwater systems (Park & Im, 2001; Park et al, 2004, 2017; Gil et al, 2017; Lim et al, 2017). This species is an example of tasty and nutritious food, and has been used as such; it is also widely used in private treatment (Park & Im, 2001; Park et al, 2004, 2017; Gil et al, 2017; Lim et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

The Anesthetic Effects of Clove Oil and MS-222 on Far Eastern Catfish, Silurus asotus

Park¹

2019

Dev. Reprod.

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The objective of this study is to evaluate the anesthetic effects of clove oil and tricaine methanesulfonate (MS-222) on the Far Eastern catfish, Silurus asotus , by measuring the times to anesthesia and recovery. Each anesthetic effect of clove oil and MS-222 was tested in two groups of fish with different body sizes: a group of small fish (mean body length: 15.5±1.58 cm, mean body weight: 50.1±5.91 g, n=20) and a group of large fish (mean body length: 31.5±4.19 cm, mean body weight: 302.1±15.22 g, n=20). The anesthetics were used at concentrations of 200, 300, 400, 500, and 600 ppm. The results showed significant relationships between the concentration of the anesthetic and the body size of the fish. Each of these variables showed statistical significance ( p <0.05). The time to anesthesia decreased linearly with increasing concentration in the large fish for both clove oil and MS-222 ( p <0.05). Based on an optimal anesthetic time of approximately 1 min, the preferred concentrations of the anesthetics were 500 ppm for clove oil and 600 ppm for MS-222. Both the anesthetic time and the recovery time were shorter for the small fish than for the large fish ( p <0.05). Our study showed that the smaller-sized Far Eastern catfish was more easily anesthetized and recovered more rapidly from anesthesia than the larger-sized fish.

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Section: Introductionmentioning

confidence: 99%

The Anesthetic Effects of Clove Oil and MS-222 on Far Eastern Catfish, Silurus asotus

Park¹

2019

Dev. Reprod.

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“…Lipid distribution patterns in fish vary widely amongst species (Ackman, ; Kaneko et al, ). Siluriformes species are known to accumulate lipids in myomers and subcutaneous adipose tissues (Fauconneau & Laroche, ; Lim, Gil, & Park, ). However, there is little information on lipid accumulation patterns in the other species used in the present study.…”

Section: Discussionmentioning

confidence: 99%

Lipid distribution patterns of nine commercial fish in Thailand

et al. 2019

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Lipid distribution pattern is an important trait, which is related to flesh quality and the yield rate of aquaculture products. Here we investigated lipid distribution patterns by oil red O staining for nine economically important fish in Thailand. The most remarkable feature was that Siluriformes species had a thick layer of subcutaneous lipids, possibly to compensate the evolutionary loss of scales. In addition, we found several other characteristic staining patterns: (1) dotted stains at the boundary of red and white muscles and along the subcutaneous tissue in crystal‐eyed catfish, (2) double lines of staining along the subcutaneous layer in crystal‐eyed catfish, (3) dotted stains along the horizontal septum lines in hybrid catfish, (4) pronounced retroperitoneal fat accumulation in Nile tilapia and red tilapia, (5) pronounced fat accumulation in the inclinator muscle of the fins in Indian spiny turbot, (6) intense staining under the scales of common carp and (7) three dotted stains in soft finrays in clown knifefish. Although lipid distribution patterns are known to be affected by environmental conditions, the observed species differences suggest the strong genetic control of lipid distribution. This trait should be considered as a target of selective breeding especially for Siluriformes, in addition to commonly used parameters such as growth rate and disease resistance.

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“…Upon attaining sexual maturity, these fish begin to experience reduced growth and decreased feeding efficiency ( Choi et al, 1992 ). Therefore, the induction of triploidy offers more rapid growth and added value due to the increased production of larger catfish ( Lim et al., 2017 ).…”

Section: Introductionmentioning

confidence: 99%

“…Triploidization is a technique used to generate sterile aquatic animals by taking advantage of the incompatibility in pairing the three homologous chromosomes during meiosis I ( Don & Avtalion, 1986 ). This technique has also been used to enhance the productivity of several fish species because of its assumed ability to increase yield by channeling the energy required from gonadal development to somatic growth ( Tave, 1993 ; Gil et al, 2017 ; Lim et al, 2017 ). More importantly, it generates fish that are unable to breed and contribute to the local gene pool if they were to accidentally escape from confinement.…”

Section: Introductionmentioning

confidence: 99%

Pysiological Responses of Diploid and Triploid Far Eastern Catfish, Silurus asotus to Water Temperature Stress

Lee

Kim

Gil³

et al. 2018

Dev. Reprod.

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The aim of study is to contribute to this knowledge-base by investigating the respiratory function, the metabolic rate and the difference of physiological responses un-der low water temperature (20℃→15℃) stress be-tween diploid and triploid far eastern catfish, Silurus asotus. During the 48 hrs of water temperature stress exposure time, the respiratory frequencies, CO2 and NH4+ concentrations of diploid had higher values than those of triploid (p<0.05). However, pH of triploid was higher than those of diploid (p<0.05), and oxygen consumption rate was not different between diploid and triploid (p>0.05). The level of plasma cortisol and plasma glucose of triploid was lower than those of the diploid (p<0.05). However, in case of lactic acid, there were not significant between triploid and diploid (p>0.05). These results suggest that diploid was more sensitive for low water temperature stress response than triploid in this species.

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Change of Various Characteristics between Spawning and Non-spawning Season in Diploid and Induced Triploid Far Eastern Catfish, Silurus asotus

Cited by 5 publications

References 16 publications

The Anesthetic Effects of Clove Oil and MS-222 on Far Eastern Catfish, Silurus asotus

The Anesthetic Effects of Clove Oil and MS-222 on Far Eastern Catfish, Silurus asotus

Lipid distribution patterns of nine commercial fish in Thailand

Pysiological Responses of Diploid and Triploid Far Eastern Catfish, Silurus asotus to Water Temperature Stress

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