نتایج جستجو برای: walking catfish

تعداد نتایج: 45925  

2013
Elena Preziosa Shikai Liu Genciana Terova Xiaoyu Gao Hong Liu Huseyin Kucuktas Jeffery Terhune Zhanjiang Liu

BACKGROUND Calpains, a superfamily of intracellular calcium-dependent cysteine proteases, are involved in the cytoskeletal remodeling and wasting of skeletal muscle. Calpains are generated as inactive proenzymes which are activated by N-terminal autolysis induced by calcium-ions. METHODOLOGY/PRINCIPAL FINDINGS In this study, we characterized the full-length cDNA sequences of three calpain gen...

2013
Zhiqiang Xu Jiaping Chen Xuguang Li Jiachun Ge Jianlin Pan Xiaofeng Xu

Channel catfish (Ictalurus spp.) is an economically important species in freshwater aquaculture around the world and occupies a prominent position in the aquaculture industry of the United States. MicroRNAs (miRNAs) play important roles in the regulation of almost every biological process in eukaryotes; however, there is little information available concerning miRNAs in channel catfish. In this...

Journal: :Indian journal of experimental biology 2014
Neerja Aggarwal Shashi Vadan Goswami Preeti Khandelwal Neeta Sehgal

Seasonal variations in the aromatase activity in H. fossilis estimated by a microassay were correlated with the sex steroids, vitellogenin in and ovarian weight during circannual reproductive cycle. In the female catfish, aromatase activity was detectable in the hypothalamus throughout the year whereas in ovary only during active vitellogenesis. In the catfish, hypothalamic aromatase levels inc...

2005
P. LYNN KENNEDY YOUNG - JAE LEE

Recent increases in imports of catfish, shrimp, and crawfish have caused concern as to their impact on domestic prices. This study seeks to identify the linkages between imports of these goods and producer prices. Increases in imports of catfish and shrimp are shown to decrease related domestic prices. However, recent trends show a simultaneous increase in both imports and domestic prices of cr...

Journal: :Journal of immunology 2003
He Zhou Eva Bengtén Norman W Miller L William Clem Melanie Wilson

Previously, a series of clonal alloantigen-dependent T cell lines established from the channel catfish revealed distinctly different TCR beta rearrangements. Here, a follow-up study of the junctional diversity of these TCR gene rearrangements focuses on characterization of the genomic organization of the TCRB locus. Surprisingly, a total of 29 JB genes and two substantially different CB genes w...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2006
U H Schulz C Leuchtenberger

The South American silver catfish (Rhamdia quelen) is a widely distributed species in Central and South America in areas east of the Andes between Venezuela and the northern parts of Argentina. The bottom dwelling species occurs in lakes and reservoirs as well as in rivers. Between June 2000 and December 2001, sixteen silver catfish were tracked during fourteen 24-h cycles in two-hour-intervals...

Journal: :DNA sequence : the journal of DNA sequencing and mapping 2003
Geoffrey C Waldbieser A Lelania Bilodeau Dan J Nonneman

In order to support analysis of channel catfish populations and genetic improvement programs, the channel catfish, Ictalurus punctatus, mitochondrial genome was completely sequenced and revealed gene structure and gene order common to vertebrates. Nucleotide sequence comparisons of cytochrome b (Cytb) and cytochrome c oxidase subunit 1 (COI) demonstrated genetic separation of the genera Ictalur...

2005
YOUNG-JAE LEE

Recent increases in imports of catfish, shrimp, and crawfish have caused concern as to their impact on domestic prices. This study seeks to identify the linkages between imports of these goods and producer prices. Increases in imports of catfish and shrimp are shown to decrease related domestic prices. However, recent trends show a simultaneous increase in both imports and domestic prices of cr...

2002
Kenneth B. Davis Billy R. Griffin Wayne L. Gray

A quantitative bioassay employing immersion exposure was developed for the infection of channel catfish Ictalurus punctatus with the protozoan parasite Ichthyophthirius multifiliis, commonly referred to as ich. This bioassay as well as waterborne challenge of channel catfish with channel catfish virus (CCV) was used to investigate the effect of confinement stress on the sensitivity of the fish ...

Journal: :Journal of microbiological methods 2009
Benjamin R LaFrentz Phillip H Klesius

Flavobacterium columnare, the causative agent of columnaris disease, is a significant pathogen of many freshwater fish species worldwide and is considered one of the most important pathogens impacting the channel catfish (Ictalurus punctatus Rafinesque) industry in the United States. Recent research has demonstrated that F. columnare exhibits a chemotactic response to mucus from the skin of cat...

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