Effects of dietary fish oil and corn oil on gonadosomatic and hepatosomatic index, gonadal histology, 17β‐oestradiol level and fatty acids profile of mahseer ( Tor  tambroides ) broodstock in captivity

2021 ◽  
Author(s):  
Muhammad Yazed Abduh ◽  
Ivan Chong Chu Koh ◽  
Ambok Bolong Abol‐Munafi ◽  
Nor Hakim Norazmi‐Lokman ◽  
Noordiyana Mat Noordin
2000 ◽  
Vol 83 (11) ◽  
pp. 2620-2628 ◽  
Author(s):  
D.C. Donovan ◽  
D.J. Schingoethe ◽  
R.J. Baer ◽  
J. Ryali ◽  
A.R. Hippen ◽  
...  

2003 ◽  
Vol 77 (1) ◽  
pp. 165-179 ◽  
Author(s):  
K. J. Shingfield ◽  
S. Ahvenjärvi ◽  
V. Toivonen ◽  
A. Ärölä ◽  
K. V. V. Nurmela ◽  
...  

AbstractMechanisms underlying milk fat conjugated linoleic acid (CLA) responses to supplements of fish oil were investigated using five lactating cows each fitted with a rumen cannula in a simple experiment consisting of two consecutive 14-day experimental periods. During the first period cows were offered 18 kg dry matter (DM) per day of a basal (B) diet formulated from grass silage and a cereal based-concentrate (0·6 : 0·4; forage : concentrate ratio, on a DM basis) followed by the same diet supplemented with 250 g fish oil per day (FO) in the second period. The flow of non-esterified fatty acids leaving the rumen was measured using the omasal sampling technique in combination with a triple indigestible marker method based on Li-Co-EDTA, Yb-acetate and Cr-mordanted straw. Fish oil decreased DM intake and milk yield, but had no effect on milk constituent content. Milk fat trans-11 C18:1, total trans-C18 : 1, cis-9 trans-11 CLA, total CLA, C18 : 2(n-6) and total C18 : 2content were increased in response to fish oil from 1·80, 4·51, 0·39, 0·56, 0·90 and 1·41 to 9·39, 14·39, 1·66, 1·85, 1·25 and 4·00 g/100 g total fatty acids, respectively. Increases in the cis-9, trans-11 isomer accounted for proportionately 0·89 of the CLA response to fish oil. Furthermore, fish oil decreased the flow of C18 : 0(283 and 47 g/day for B and FO, respectively) and increased that of trans-C18 : 1fatty acids entering the omasal canal (38 and 182 g/day). Omasal flows of trans-C18 : 1acids with double bonds in positions from delta-4 to -15 inclusive were enhanced, but the effects were isomer dependent and primarily associated with an increase in trans-11 C18 : 1 leaving the rumen (17·1 and 121·1 g/day for B and FO, respectively). Fish oil had no effect on total (4·36 and 3·50 g/day) or cis-9, trans-11 CLA (2·86 and 2·08 g/day) entering the omasal canal. Flows of cis-9, trans-11 CLA were lower than the secretion of this isomer in milk. Comparison with the transfer of the trans-9, trans-11 isomer synthesized in the rumen suggested that proportionately 0·66 and 0·97 of cis-9, trans-11 CLA was derived from endogenous conversion of trans-11 C18 : 1in the mammary gland for B and FO, respectively. It is concluded that fish oil enhances milk fat cis-9, trans-11 CLA content in response to increased supply of trans-11 C18:1that arises from an inhibition of trans-C18 : 1reduction in the rumen.


2002 ◽  
Vol 283 (5) ◽  
pp. C1365-C1375 ◽  
Author(s):  
Sybille Rex ◽  
Maria A. Kukuruzinska ◽  
Nawfal W. Istfan

We have recently noted that cells treated with fish oil and n–3-fatty acids show slower DNA replication rates than cells treated with a control emulsion or corn oil only. However, it is not clearly understood how such an effect is induced. Fish oil and its metabolites are known to have several modulating effects on signal transduction pathways. Alternatively, they may influence DNA replication by interacting directly with nuclear components. To investigate this problem in greater detail, we have studied the kinetics of DNA synthesis in a cell-free system derived from HeLa cells. Nuclei and cytosolic extract were isolated from cells synchronized in early S phase after treatment with control emulsion, corn oil, or fish oil, respectively. The nuclei were reconstituted with cytosolic extract and a reaction mixture containing bromodeoxyuridine (BrdU) triphosphate to label newly synthesized DNA. The rate of DNA synthesis was measured by bivariate DNA/BrdU analysis and flow cytometry. We show that fish oil-treated cytosol inhibits the elongation of newly synthesized DNA by ∼80% in control nuclei. However, nuclei treated with fish oil escape this inhibitory effect. We also show that addition of nuclear extract from fish oil-treated cells reverses the inhibitory effect seen in the reconstitution system of control nuclei and fish oil-treated cytosol. These results indicate that polyunsaturated fatty acids can modulate DNA synthesis through cytosolic as well as soluble nuclear factors.


1985 ◽  
Vol 162 (4) ◽  
pp. 1336-1349 ◽  
Author(s):  
C A Leslie ◽  
W A Gonnerman ◽  
M D Ullman ◽  
K C Hayes ◽  
C Franzblau ◽  
...  

B10.RIII and B10.G mice were transferred from a diet of laboratory rodent chow to a standard diet in which all the fat (5% by weight) was supplied as either fish oil (17% eicosapentaenoic acid [EPA], 12% docosahexaenoic acid [DHA], 0% arachidonic acid [AA], and 2% linoleic acid) or corn oil (0% EPA, 0% DHA, 0% AA, and 65% linoleic acid). The fatty acid composition of the macrophage phospholipids from mice on the chow diet was similar to that of mice on a corn oil diet. Mice fed the fish oil diet for only 1 wk showed substantial increases in macrophage phospholipid levels of the omega-3 fatty acids (of total fatty acid 4% was EPA, 10% docosapentaenoic acid [DPA], and 10% DHA), and decreases in omega-6 fatty acids (12% was AA, 2% docosatetraenoic acid [DTA], and 4% linoleic acid) compared to corn oil-fed mice (0% EPA, 0% DPA, 6% DHA, 20% AA, 9% DTA, and 8% linoleic acid). After 5 wk this difference between the fish oil-fed and corn oil-fed mice was even more pronounced. Further small changes occurred at 5-9 wk. We studied the prostaglandin (PG) and thromboxane (TX) profile of macrophages prepared from mice fed the two diets just before being immunized with collagen. Irrespective of diet, macrophages prepared from female mice and incubated for 24 h had significantly more PG and TX in the medium than similarly prepared macrophages from male mice. The increased percentage of EPA and decreased percentage of AA in the phospholipids of the macrophages prepared from the fish oil-fed mice was reflected in a reduction in the amount of PGE2 and PGI2 in the medium relative to identically incubated macrophages prepared from corn oil-fed mice. When this same fish oil diet was fed to B10.RIII mice for 26 d before immunization with type II collagen, the time of onset of arthritis was increased, and the incidence and severity of arthritis was reduced compared to arthritis induced in corn oil-fed mice. The females, especially those on the fish oil diet, tended to have less arthritis than the males. These alterations in the fatty acid pool available for PG and leukotriene synthesis suggest a pivotal role for the macrophage and PG in the immune and/or inflammatory response to type II collagen.


2010 ◽  
Vol 95 (4) ◽  
pp. 512-522 ◽  
Author(s):  
R. Kupczyński ◽  
M. Szołtysik ◽  
W. Janeczek ◽  
J. Chrzanowska ◽  
S. Kinal ◽  
...  

2016 ◽  
Vol 10 (3) ◽  
pp. 208 ◽  
Author(s):  
SeyedReza Hejazian ◽  
SeyedehZeynab Hatami Takami ◽  
Esmaeil Ghanbari Shendi

<p>However Kilka is a valuable fish in nutritional point of view, but a large part of it used in poultry feed. The main<br />reason is the undesirable odor. In this study Kilka oil was blended with milk at 1% and 2% level and then the<br />mixture spray dried. These encapsulated Kilka oil were added to cheese as a fortificant materials at 5% level.<br />Cheese without encapsulated Kilka oil was as a control treatment. Results showed that there was no significant<br />difference (p&gt;0.05) between color of fortificated cheese with control cheese. There was no significant difference<br />(p&gt;0.05) between odor of cheese with 5% encapsulated Kilka oil that contain 1% Kilka oil (A) with control<br />cheese. There was no significant difference (p&gt;0.05) between flavor of cheese with 5% encapsulated Kilka oil<br />that contain 1% Kilka oil (A) with cheese with 5% encapsulated Kilka oil that contain 2% Kilka oil (B) but there<br />was significant difference (p&lt;0.05) between these two treatments with control cheese. Also, the eicosapentaenoic<br />acid (EPA) and docosahexaenoic acid (DHA) content of fortified cheeses had significant difference (p&lt;0.05)<br />with control cheese.</p>


2014 ◽  
Vol 5 (12) ◽  
pp. 3208-3215 ◽  
Author(s):  
Marcela A. Martins ◽  
Monique B. Moss ◽  
Iara K. S. Mendes ◽  
Márcia B. Águila ◽  
Carlos Alberto Mandarim-de-Lacerda ◽  
...  

The consumption of n-3 polyunsaturated fatty acids derived from fish oil is associated with cardiovascular benefits, which may result from the participation of nitric oxide.


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