Synergistic Combination of Exogenous Hormones to Improve the Spawning and Post-spawning Survival of Female Yellow Catfish

Hu, Weihua; Huang, Peipei; Xiong, Yang; Guo, Wenjie; Wang, Yuhong; Fan, Qi-Wen; Wang, Qingyun; Mei, Jie

doi:10.3389/fgene.2020.00961

Cited by 10 publications

(6 citation statements)

References 37 publications

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“…Artificial propagation of yellow catfish were performed according to a previous study (Hu et al, 2020). The spawning of female yellow catfish was triggered by two rounds of intrapleural injection, using Luteinizing hormone releasing hormone A 2 (LHRH‐A 2, Ningbo second hormone factory, China) at a dose of 14 μg/kg bodyweight for the first injection under the bottom of left pectoral fin.…”

Section: Methodsmentioning

confidence: 99%

Effects of feeding rate and dietary protein levels on the breeding performance of female yellow catfish ( Pelteobagrus fulvidraco )

Xiong

Gao

Wang

et al. 2021

Aquaculture Research

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Nutritional components and feeding strategies are multifarious amongst different producers, whereas they are just designed for fish farming but not suitable for improving the reproductive performance of broodfish. Yellow catfish (Pelteobagrus fulvidraco), an omnivorous species, is one of the important aquaculture fish in China. In order to improve the reproductive performance of female yellow catfish (119.86-134.54 g), four feeding strategies (0.5%, 0.75%, 1% and 1.5% BW/d) and three dietary protein levels (34%, 40% and 46%) were examined, respectively, in the two separate trials. The females with moderate feed restriction (1%) showed significant lower mesenteric fat index (MFI) and higher gonadosomatic index (GSI) than the satiation group (1.5%) and excessive feeding restriction groups (0.5% and 0.75%). Females with high MFI were difficult to be artificially propagated and showed a high mortality rate, whilst the fish at 1.0% feeding rate displayed low mortality rate and high ratios of spawned fish, as well as high percentages of fertilization and hatching. Meanwhile, the offspring of 1.0% feeding rate group showed a low malformation rate and high survival rate. Multiple spawning in the same breeding season are applied in yellow catfish to reduce the number of parent fish and increase the fry production, and gonadal recrudescence after spawning might be affected by different nutrient values including dietary protein levels. In the second trail, female yellow catfish were fed with 34%, 40% and 46% crude protein diet at 1% feeding rate for the second spawning, and the best reproductive and breeding performances were observed in the fish group with 46% crude protein diet. These results demonstrate that 1% feeding rate is optimum for the spawning and reproductive performance of female yellow catfish for the first artificial spawning, and 46% dietary protein group had the best reproductive performances in the second spawning.

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Section: Methodsmentioning

confidence: 99%

Effects of feeding rate and dietary protein levels on the breeding performance of female yellow catfish ( Pelteobagrus fulvidraco )

Xiong

Gao

Wang

et al. 2021

Aquaculture Research

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“…The fish were fed twice daily at 8:00 am and 16:00 pm with a commercial feed. Artificial insemination was performed according to the previous study (Hu et al, 2020). Samples were collected at 4‐cell stage, 20 and 45 days post fertilization (dpf), and 2, 4, 8 and 12 months old.…”

Section: Methodsmentioning

confidence: 99%

Defective germplasm assembly and germ cell development contribute to hybrid sterility in yellow catfish

Chu

Xiong

et al. 2021

Aquaculture Research

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Hybrid sterility has been widely observed in fish species; however, the molecular mechanisms of hybrid sterility are not well understood. In this work, we compared the reproductive development of yellow catfish (Pelteobagrus fulvidraco, PF) and hybrid yellow catfish (Pelteobagrus fulvidraco ♀ × Pelteobagrus vachelli ♂) from embryo to adult at cellular and molecular levels. Firstly, we developed a pair of genetic markers to efficiently distinguish PF and PV (Pelteobagrus vachelli) and their interspecific hybrid. Hybrid sterility was observed in hybrid yellow catfish, as indicated by the germ cell‐less phenotype and defective gonadal development. The expression levels of germ cell differentiation‐related and gonadal somatic cell development‐related genes were obviously down‐regulated in PF × PV hybrid than in PF. In addition, meiotic and mitotic defects were detected in the testis of PF × PV hybrid, since the numbers of Sycp3‐ and PH3‐positive cells were obviously reduced. As early as 4‐cell stage, defects of germplasm assembly and accelerated decay of maternal germline‐specific mRNAs were observed in hybrid yellow catfish. Our studies provide evidence that hybrid sterility in animals might be caused by the accelerated decay of germplasm mRNAs, impaired germplasm assembly and defective germ cell development.

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“…hormone therapy, changing temperature and photoperiod). [278][279][280] Nonetheless, salinity has a significant role in modulating reproduction in aquaculture. In males, spermatozoa are quiescent until motility is triggered during release into hyposmotic environments for FW fish or hyperosmotic environments for marine species 281 ; thus, when fish are exposed to different salinities, spermatozoa quality may also be affected.…”

Section: Reproductionmentioning

confidence: 99%

“…Typically factors other than salinity are employed for modulating reproduction in aquacultured fish (i.e. hormone therapy, changing temperature and photoperiod) 278–280 . Nonetheless, salinity has a significant role in modulating reproduction in aquaculture.…”

Section: Implications For Productionmentioning

confidence: 99%

Salinity tolerance of fishes: Experimental approaches and implications for aquaculture production

Seale,

Cao,

Chang

et al. 2024

Reviews in Aquaculture

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The life history, distribution and diversity of fishes are largely influenced by environmental salinity. Changes in salinity affect a range of physiological processes including metabolism, nutrition, reproduction and growth. Therefore, fish can be conditioned to environmental parameters most suitable for production, where distinct traits are optimised through species‐specific manipulation of salinities. The primary purpose of this review is to summarise the existing literature on the salinity tolerance of aquacultured fish. The various experimental approaches for determining salinity tolerance are compared, along with summarised information for key species employed in aquaculture, including their native distributions, life history stage and optimal salinity for survival and growth. The implications for production were assessed by considering the effects of salinity on growth, reproduction, management, disease mitigation and marketability.

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Synergistic Combination of Exogenous Hormones to Improve the Spawning and Post-spawning Survival of Female Yellow Catfish

Cited by 10 publications

References 37 publications

Effects of feeding rate and dietary protein levels on the breeding performance of female yellow catfish ( Pelteobagrus fulvidraco )

Effects of feeding rate and dietary protein levels on the breeding performance of female yellow catfish ( Pelteobagrus fulvidraco )

Defective germplasm assembly and germ cell development contribute to hybrid sterility in yellow catfish

Salinity tolerance of fishes: Experimental approaches and implications for aquaculture production

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