Effects of strain and body weight on low-oxygen tolerance of channel catfish (Ictalurus punctatus)

2017 ◽  
Vol 25 (4) ◽  
pp. 1645-1652 ◽  
Author(s):  
Xiaozhu Wang ◽  
Shikai Liu ◽  
Rex Dunham ◽  
Zhanjiang Liu
Keyword(s):  
Body Weight ◽  
Ictalurus Punctatus ◽  
Channel Catfish ◽  
Low Oxygen ◽  
Oxygen Tolerance

Immunohistochemical localization of vitellogenin and associated morphologic changes in hepatocytes of channel catfish, Ictalurus punctatus

1991 ◽  
Vol 69 (1) ◽  
pp. 7-14 ◽  
Author(s):  
Cecily Q. Pacoli ◽  
John M. Grizzle ◽  
James T. Bradley
Keyword(s):  
Body Weight ◽  
Ictalurus Punctatus ◽  
Channel Catfish ◽  
Glycogen Content ◽  
Immunohistochemical Localization ◽  
Immunohistochemical Method ◽  
Freeze Dried ◽  
Positive Immunostaining ◽  
17Β Estradiol ◽  
Morphologic Changes

Vitellogenin (VG) was localized in the cytoplasm of hepatocytes in freeze-dried, plastic-embedded and Bouin's-fixed, paraffin-embedded sections of channel catfish liver. The location of VG was demonstrated by using a peroxidase–antiperoxidase immunohistochemical method. Positive immunostaining was obtained only in naturally vitellogenic females and in fish that had been injected with 2 mg/100 g body weight 17β-estradiol. Vitellogenin reaction product was observed in most but not all of the hepatocytes from estradiol-induced and naturally vitellogenic fish. Glycogen content was reduced in hepatocytes that showed positive VG immunostaining. Nuclear size was larger in hepatocytes from vitellogenic fish compared with nonvitellogenic fish.

Response to three generations of selection for increased body weight in channel catfish, Ictalurus punctatus, grown in earthen ponds

Aquaculture ◽  
2003 ◽  
Vol 228 (1-4) ◽  
pp. 69-79 ◽  
Author(s):  
Mahmoud A Rezk ◽  
R.Oneal Smitherman ◽  
John C Williams ◽  
Amy Nichols ◽  
Huseyin Kucuktas ◽  
...  
Keyword(s):  
Body Weight ◽  
Ictalurus Punctatus ◽  
Channel Catfish ◽  
Three Generations ◽  
Earthen Ponds ◽  
Selection For

scholarly journals Comparative transcriptome analysis of the swimbladder reveals expression signatures in response to low oxygen stress in channel catfish,Ictalurus punctatus

2018 ◽  
Vol 50 (8) ◽  
pp. 636-647 ◽  
Author(s):  
Yujia Yang ◽  
Qiang Fu ◽  
Xiaozhu Wang ◽  
Yang Liu ◽  
Qifan Zeng ◽  
...  
Keyword(s):  
Signaling Pathway ◽  
Ictalurus Punctatus ◽  
Channel Catfish ◽  
Expression Patterns ◽  
Regulation Of Gene Expression ◽  
Mapk Signaling ◽  
Hypoxia Tolerance ◽  
Economic Losses ◽  
Ras Signaling ◽  
Low Oxygen

Channel catfish is the leading aquaculture species in the US, and one of the reasons for its application in aquaculture is its relatively high tolerance against hypoxia. However, hypoxia can still cause huge economic losses to the catfish industry. Studies on hypoxia tolerance, therefore, are important for aquaculture. Fish swimbladder has been considered as an accessory respiration organ surrounded by a dense capillary countercurrent exchange system. In this regard, we conducted RNA-Seq analysis with swimbladder samples of catfish under hypoxic and normal conditions to determine if swimbladder was responsive to low oxygen treatment and to reveal genes, their expression patterns, and pathways involved in hypoxia responses in catfish. A total of 155 differentially expressed genes (DEGs) were identified from swimbladder of adult catfish, whereas a total of 2,127 DEGs were identified from swimbladder of fingerling catfish under hypoxic condition as compared with untreated controls. Subsequent pathway analysis revealed that many DEGs under hypoxia were involved in HIF signaling pathway ( nos2, eno2, camk2d2, prkcb, cdkn1a, eno1, and tfrc), MAPK signaling pathway (voltage-dependent calcium channel subunit genes), PI3K/Akt/mTOR signaling pathway ( itga6, g6pc, and cdkn1a), Ras signaling pathway ( efna3 and ksr2), and signaling by VEGF ( fn1, wasf3, and hspb1) in catfish swimbladder. This study provided insights into regulation of gene expression and their involved gene pathways in catfish swimbladder in response to low oxygen stresses.

EFFECTS OF STARVATION ON BODY WEIGHT AND BODY COMPOSITION OF SMALL-SIZED CHANNEL CATFISH ICTALURUS PUNCTATUS

2009 ◽  
Vol 33 (1) ◽  
pp. 39-45 ◽  
Author(s):  
Xiao-Ying TAN ◽  
Zhi LUO ◽  
Wei-Min WANG ◽  
Bang-Xi XIONG ◽  
Yong-Chao YUAN ◽  
...  
Keyword(s):  
Body Composition ◽  
Body Weight ◽  
Ictalurus Punctatus ◽  
Channel Catfish

Preparation and characterization of collagen polypeptide chelated calcium from fish bone powder of channel catfish(Ictalurus punctatus)

2012 ◽  
Vol 36 (2) ◽  
pp. 314
Author(s):  
Jian-feng LU ◽  
Chang-wei MENG ◽  
Jin LI ◽  
Zi-hui GONG ◽  
Lin LIN ◽  
...  
Keyword(s):  
Ictalurus Punctatus ◽  
Channel Catfish ◽  
Fish Bone ◽  
Bone Powder

Bioeconomic Analysis of Flavobacterium columnare Vaccine Pond Trials with Channel Catfish Ictalurus punctatus

2021 ◽  
Author(s):  
Jillian K. Malecki ◽  
Luke A. Roy ◽  
Cova R. Arias ◽  
Miles D. Lange ◽  
Craig A. Shoemaker ◽  
...  
Keyword(s):  
Ictalurus Punctatus ◽  
Channel Catfish ◽  
Flavobacterium Columnare

Novel polymorphisms in Stearoyl‐CoA Desaturase (SCD) and Fatty Acid Desaturase 2 (FADS2) in channel catfish ( Ictalurus punctatus, Rafinesque, 1818 )

2021 ◽  
Author(s):  
Oliva Mendoza‐Pacheco ◽  
Gaspar Manuel Parra‐Bracamonte ◽  
Xochitl Fabiola De la Rosa‐Reyna ◽  
Ana María Sifuentes‐Rincón ◽  
Isidro Otoniel Montelongo‐Alfaro ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Ictalurus Punctatus ◽  
Channel Catfish ◽  
Fatty Acid Desaturase ◽  
Stearoyl Coa Desaturase ◽  
Fatty Acid Desaturase 2
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