scholarly journals Cholesterol and n-3 and n-6 fatty acid content in eggs from laying hens fed with red crab meal (Pleuroncodes planipes)

2005 ◽  
Vol 84 (1) ◽  
pp. 167-172 ◽  
Author(s):  
S. Carrillo-Dominguez ◽  
M.E. Carranco-Jauregui ◽  
R.M. Castillo-Dominguez ◽  
M.I. Castro-Gonzalez ◽  
E. Avila-Gonzalez ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Acid Content ◽  
Laying Hens ◽  
Fatty Acid Content

The effect of dietary herring meal on the omega-3 fatty acid content of plasma and egg yolk lipids of laying hens

1995 ◽  
Vol 75 (2) ◽  
pp. 247-253 ◽  
Author(s):  
D. M. Nash ◽  
R. M. G. Hamilton ◽  
H. W. Hulan
Keyword(s):  
Fatty Acid ◽  
Acid Content ◽  
Plasma Lipids ◽  
Laying Hens ◽  
Control Diet ◽  
Fatty Acid Content ◽  
Total Lipid Content ◽  
Egg Yolk ◽  
Omega 3 ◽  
Omega 6

The effect of dietary HM on plasma and egg yolk lipids of commercial White Leghorn hens was studied over 350 d. A total of 192 birds were given corn-wheat-soybean meal diets that contained either 0, 4, 8, or 12% HM. Analysis of plasma lipids at four periods in the laying cycle (169, 211, 253 and 287 d) and at five times during the test day (0800, 1000, 1200, 1400 and 1600 h) were performed. Egg lipids were analyzed at each of the four periods.Plasma total lipids were inversely related (P < 0.01) to dietary HM levels while omega-3 and omega-6 fatty acid levels were positively and inversely related (P < 0.001), respectively. HM levels did not influence the total lipid content of the egg yolk lipids but omega-3 and omega-6 fatty acid content were positively and inversely related, respectively. The levels of eicosapentaenoic (20:5n3, EPA) and docosahexaenoic (22:6n3, DHA) acid were 11 and 3 times higher, respectively (7.8 and 100.5 mg yolk−1) in the yolks from hens given the 12% HM diet compared to the control diet. Key words: Herring meal, laying hens, omega-3 fatty acids, eicosapentaenoic acid, docosahexaenoic acid

Camelina Meal Increases Egg n-3 Fatty Acid Content Without Altering Quality or Production in Laying Hens

Lipids ◽  
2012 ◽  
Vol 47 (5) ◽  
pp. 519-526 ◽  
Author(s):  
Radhika Kakani ◽  
Justin Fowler ◽  
Akram-Ul Haq ◽  
Eric J. Murphy ◽  
Thad A. Rosenberger ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Acid Content ◽  
Laying Hens ◽  
Fatty Acid Content ◽  
Camelina Meal

scholarly journals Krill Meal Enhances Antioxidant Levels and n-3 Fatty Acid Content of Egg Yolk from Laying Hens Fed a Low-Pigment Diet

2020 ◽  
Vol 57 (3) ◽  
pp. 192-199
Author(s):  
Kwanticha Prommetta ◽  
Seksom Attamangkune ◽  
Yuwares Ruangpanit
Keyword(s):  
Fatty Acid ◽  
Acid Content ◽  
Laying Hens ◽  
Fatty Acid Content ◽  
Egg Yolk

Effect of light intensity on the ultrastructure of the filamentous cyanobacterium, Anabaena variabilis

1988 ◽  
Vol 46 ◽  
pp. 300-301
Author(s):  
C. S. Bricker ◽  
S. R. Barnum ◽  
B. Huang ◽  
J. G. Jaworskl
Keyword(s):  
Fatty Acid ◽  
Light Intensity ◽  
Acid Content ◽  
Fatty Acid Content ◽  
Anabaena Variabilis ◽  
Chloroplast Envelope ◽  
Major Constituent ◽  
Filamentous Cyanobacterium ◽  
Photosynthetic Membrane ◽  
Effect Of Light

Cyanobacteria are Gram negative prokaryotes that are capable of oxygenic photosynthesis. Although there are many similarities between eukaryotes and cyanobacteria in electron transfer and phosphorylation during photosynthesis, there are two features of the photosynthetic apparatus in cyanobacteria which distinguishes them from plants. Cyanobacteria contain phycobiliproteins organized in phycobilisomes on the surface of photosynthetic membrane. Another difference is in the organization of the photosynthetic membranes. Instead of stacked thylakolds within a chloroplast envelope membrane, as seen In eukaryotes, IntracytopIasmlc membranes generally are arranged in three to six concentric layers. Environmental factors such as temperature, nutrition and light fluency can significantly affect the physiology and morphology of cells. The effect of light Intensity shifts on the ultrastructure of Internal membrane in Anabaena variabilis grown under controlled environmental conditions was examined. Since a major constituent of cyanobacterial thylakolds are lipids, the fatty acid content also was measured and correlated with uItrastructural changes. The regulation of fatty acid synthesis in cyanobacteria ultimately can be studied if the fatty acid content can be manipulated.

Determination of fatty acid content in some edible insects of Mexico

2016 ◽  
Vol 2 (1) ◽  
pp. 37-42 ◽  
Author(s):  
J.M. Pino Moreno ◽  
A. Ganguly
Keyword(s):  
Oleic Acid ◽  
Fatty Acid ◽  
Acid Content ◽  
Periplaneta Americana ◽  
Fatty Acid Content ◽  
Capric Acid ◽  
Caproic Acid ◽  
Insect Species ◽  
Edible Insects

In the present paper we have determined the fatty acid content of some edible insects of Mexico. A comparative analysis of the insect species studied in this research showed that caproic acid was present in a minimal proportion which ranged between 0.01 for Periplaneta americana (nymphs) and 0.06 (g/100 g, dry basis) for Euschistus strenuus. The highest proportion of caprilic acid (0.09) was found in Tenebrio molitor (adults). Atta sp. had the highest amount of capric acid (0.26). Polistes sp. was found to be rich in lauric acid (0.77) and for myristic acid it had the highest content (5.64). Dactylopius sp. and E. strenuus were rich in palmitic acid (14.89). Euschistus taxcoensis had the highest quantity of palmitoleic acid (12.06). Llaveia axin exhibited the highest quantity of stearic acid (22.75). Polistes sp. was found to be rich in oleic acid (38.28). The highest quantity of linoleic acid was observed in T. molitor (larvae) (10.89), and in L. axin the highest content of linolenic acid (7.82) was obtained. A comparison between the species under the present investigation revealed that, in general, the insects are poor in caproic, caprilic, capric, lauric, myristic, palmitoleic and linolenic acids, because the quantities were either minimal or could not be detected at all. They had moderate quantities of stearic, palmitic and linoleic acids and had high quantities of oleic acid. Finally it was concluded that although a particular insect species is unable to fulfil the total fatty acid need for a human, if consumed in combination they could definitely be able to supply a good amount of this highly valued nutrient.

scholarly journals Production Performance of Moina macrocopa (Straus 1820) (Crustacea, Cladocera) Cultured in Different Salinities: The Effect on Growth, Survival, Reproduction, and Fatty Acid Composition of the Neonates

Diversity ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 105
Author(s):  
Amirah Yuslan ◽  
Sharifah Najuwa ◽  
Atsushi Hagiwara ◽  
Mazlan A. Ghaffar ◽  
Hidayu Suhaimi ◽  
...  
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Acid Content ◽  
Fatty Acid Content ◽  
Production Performance ◽  
Reproduction Rate ◽  
Moina Macrocopa ◽  
Polyunsaturated Fatty Acid Content ◽  
Survival And Reproduction

Salinity is a known factor in shaping population dynamics and community structure through direct and indirect effects on aquatic ecosystems. Salinity changes further influence food webs through competition and predation. The responses of Moina macrocopa (Cladocera) collected from Setiu Wetland lagoon (Terengganu) was evaluated through manipulative laboratory experiments to understand the ability of M. macrocopa to tolerate high salinity stress. Specifically, the fatty acid composition, growth, survival, and reproduction of this cladocerans species was examined. Sodium chloride (NaCl) as used in the treatments water with the concentration 0, 4, 6, 8, 12, and 15 salinity. Fatty acid levels were determined using Gas Chromatography and Mass Spectrophotometry (GC-MS). The results indicated that optimal conditions produced the highest fatty acid content, especially the polyunsaturated fatty acid content, such as EPA (eicosapentaenoic acid), ALA (alpha-linoleic acid), ARA (arachidonic acid), and DHA (docosahexaenoic acid). Furthermore, M. macrocopa survival was best at salinity 0, with a percentage of 98%, whereas the opposite occurred at salinity 15, with approximately 20% of viable animals surviving. Besides, M. macrocopa also showed the highest reproduction rate at salinity 0 (e.g., average initial age of reproduction, 4.33 ± 0.58 days) compared with other salinities level. Interestingly, the difference in growth at different salinities was not evident, an unusual finding when considering adverse effects such as osmoregulation pressure on the organism. Based on the results, we conclude that M. macrocopa can only tolerate salinity below salinity 8 and cannot withstand stressful environmental conditions associated with salinities above 8.

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