In vitro amino acid absorption using hydrolysed sardine muscle or soybean meal at different intestinal regions of the Pacific bluefin tuna (Thunnus orientalis)

2011 ◽  
Vol 17 (3) ◽  
pp. e789-e797 ◽  
Author(s):  
E. MARTÍNEZ-MONTAÑO ◽  
E. PEÑA ◽  
M.T. VIANA
Keyword(s):  
Amino Acid ◽  
Soybean Meal ◽  
Bluefin Tuna ◽  
Pacific Bluefin Tuna ◽  
Thunnus Orientalis ◽  
Acid Absorption ◽  
Amino Acid Absorption ◽  
The Pacific

Optimization of cold-shock conditions for the induction of triploidy in the Pacific bluefin tuna, Thunnus orientalis (Temminck et Schlegel)

Aquaculture ◽  
2021 ◽  
Vol 530 ◽  
pp. 735769
Author(s):  
Takao Hayashida ◽  
Kentaro Higuchi ◽  
Kazuharu Nomura ◽  
Junpei Konishi ◽  
Yukinori Shimada ◽  
...  
Keyword(s):  
Cold Shock ◽  
Bluefin Tuna ◽  
Pacific Bluefin Tuna ◽  
Thunnus Orientalis ◽  
The Pacific

Characterization of Transthyretin in the Pacific Bluefin Tuna, Thunnus orientalis

2006 ◽  
Vol 23 (5) ◽  
pp. 443-448 ◽  
Author(s):  
Yutaka Kawakami ◽  
Manabu Seoka ◽  
Shigeru Miyashita ◽  
Hidemi Kumai ◽  
Hiromi Ohta
Keyword(s):  
Bluefin Tuna ◽  
Pacific Bluefin Tuna ◽  
Thunnus Orientalis ◽  
The Pacific

scholarly journals The First Detection of Kudoa hexapunctata in Farmed Pacific Bluefin Tuna in South Korea, Thunnus orientalis (Temminck and Schlegel, 1844)

Animals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1705
Author(s):  
Gyoungsik Kang ◽  
Kwang-Min Choi ◽  
Dong-Hee Cho ◽  
Min-Soo Joo ◽  
Min-Jin Heo ◽  
...  
Keyword(s):  
South Korea ◽  
Food Poisoning ◽  
Bluefin Tuna ◽  
Pacific Bluefin Tuna ◽  
Thunnus Orientalis ◽  
Internal Organs ◽  
Molecular Biological Analysis ◽  
The Pacific ◽  
Fish And Shellfish ◽  
Kudoa Hexapunctata

The consumption of fish and shellfish worldwide is steadily increasing, and tuna is a particularly valuable fish species. However, infection caused by Kudoa spp. is causing problems in many fish including the Pacific bluefin tuna (Thunnus orientalis), and there is much controversy about the association of these infections with foodborne disease. In this study, using haematological and histological analyses of the blood and internal organs (liver, spleen, kidney, heart, stomach, intestine, gill, and muscle) of Pacific bluefin tuna cultured in South Korea, infection with Myxosporea was first identified, and molecular biological analysis was conducted. In this study, Kudoa hexapunctata was finally identified. The Pacific bluefin tunas analysed in this study did not show any gross pathology lesions, such as visible cysts and/or myoliquefaction, of infection with this species. The histological analytical results can provide guidelines for the identification of K. hexapunctata. In the case of K. hexapunctata-induced infection, unlike other countries, such as Japan, there have been no reports in South Korea, and this study is the first to detect K. hexapunctata infection in Pacific bluefin tuna cultured in South Korea. The correlation between K. hexapunctata and food poisoning is not yet clear, however, it is thought that continuous observation of its infection is necessary.

Acute and neonatal capsaicin treatment inhibit jejunal amino acid absorption through a Na+-dependent mechanism

1997 ◽  
Vol 272 (4) ◽  
pp. G815-G821 ◽  
Author(s):  
K. A. Barada ◽  
S. S. Dika ◽  
S. F. Atweh ◽  
N. E. Saade ◽  
C. F. Nassar
Keyword(s):  
Amino Acid ◽  
Intestinal Epithelial ◽  
Primary Afferent ◽  
Acid Absorption ◽  
Amino Acid Absorption ◽  
Afferent Fibers ◽  
Dependent Component ◽  
Primary Afferent Fibers

It has recently been shown that capsaicin inhibits alanine absorption in rat jejunum via mechanisms that involve intestinal capsaicin-sensitive primary afferent (CSPA) fibers. This study provides further evidence that the effect of capsaicin is neurally mediated and demonstrates that CSPA fibers regulate Na+-dependent amino acid absorption. In vivo, basal alanine absorption in rats neonatally treated with capsaicin was reduced by 35% below control. Furthermore, intraluminal perfusion of 400 microM capsaicin reduced jejunal alanine absorption by 31% in sham rats but had no significant effect in rats neonatally treated with capsaicin. In vitro, capsaicin significantly reduced uptake of alanine and proline by jejunal strips but had no effect on uptake of lysine. Tetrodotoxin (0.2 microM) partially blocked the effects of capsaicin but did not itself affect alanine absorption. Capsaicin reduced unidirectional mucosal-to-serosal alanine (1 mM) influx by 33%, an effect that becomes significant after 5 min of preincubation with capsaicin. Neonatal capsaicin treatment reduced basal alanine influx in jejunal strips by 37%; however, preincubation of these strips with capsaicin had no significant effect. Kinetic analysis of alanine steady-state uptake and influx by jejunal strips incubated with capsaicin revealed that capsaicin reduced the Na+-dependent component of alanine influx into intestinal epithelial cells. Long-term sensory denervation by capsaicin also decreased the Na+-dependent component of alanine absorption. These data suggest that intestinal capsaicin-sensitive primary afferent fibers regulate Na+-dependent amino acid absorption.

Capacity for digestive hydrolysis and amino acid absorption in Atlantic salmon (Salmo salar) fed diets with soybean meal or inulin with or without addition of antibiotics

Aquaculture ◽  
2006 ◽  
Vol 261 (1) ◽  
pp. 392-406 ◽  
Author(s):  
Ståle Refstie ◽  
Anne Marie Bakke-McKellep ◽  
Michael H. Penn ◽  
Anne Sundby ◽  
Karl D. Shearer ◽  
...  
Keyword(s):  
Amino Acid ◽  
Atlantic Salmon ◽  
Salmo Salar ◽  
Soybean Meal ◽  
Acid Absorption ◽  
Amino Acid Absorption ◽  
Atlantic Salmon Salmo Salar

Soybean meal can partially replace enzyme-treated fish meal in the diet of juvenile Pacific bluefin tuna Thunnus orientalis

2011 ◽  
Vol 77 (4) ◽  
pp. 615-621 ◽  
Author(s):  
Amal Biswas ◽  
Biswajit K. Biswas ◽  
Junichi Ito ◽  
Osamu Takaoka ◽  
Norishige Yagi ◽  
...  
Keyword(s):  
Soybean Meal ◽  
Fish Meal ◽  
Bluefin Tuna ◽  
Pacific Bluefin Tuna ◽  
Thunnus Orientalis ◽  
Treated Fish

Effect of ethanol on amino acid absorption across in vivo rat intestine

1981 ◽  
Vol 241 (2) ◽  
pp. G176-G181
Author(s):  
R. S. Green ◽  
R. G. MacDermid ◽  
R. L. Scheig ◽  
J. J. Hajjar
Keyword(s):  
Amino Acid ◽  
Acute Effect ◽  
Ethanol Administration ◽  
Rat Intestine ◽  
Single Pass ◽  
Acid Absorption ◽  
Amino Acid Absorption ◽  
Acute Ethanol

The acute effect of ethanol on amino acid absorption across the in vivo rat intestine was studied using single-pass continuous perfusion and recirculation techniques. The single-pass steady-state perfusion was used to examine the effect on the entire small intestine and recirculation perfusion to examine the effect on short intestinal segments and to limit ethanol absorption. Unlike the in vitro findings of other investigators, ethanol does not cause inhibition of net amino acid absorption in vivo unless the alcohol is perfused in 2 M or higher concentrations. The inhibition that is observed at these concentrations is very likely due to severe injury and shedding of intestinal cells as evidenced by an increased recovery of DNA in the perfusates. The findings suggest that acute ethanol administration, in concentrations that are comparable to those found in the upper intestines of humans after the ingestion of moderate doses of alcohol, does not have a prominent effect on amino acid absorption across the in situ rat intestine. Under these conditions, the ethanol inhibition of active absorption is masked by enhanced diffusion of the amino acids across the intestine.

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