Feeding Laying Hens Stearidonic Acid-Enriched Soybean Oil, as Compared to Flaxseed Oil, More Efficiently Enriches Eggs with Very Long-Chain n-3 Polyunsaturated Fatty Acids

Abstract Background The oil from industrial hemp seeds (Cannabis sativa) is an ideal source of stearidonic acid, which is a precursor fatty acid for the long-chained n-3 polyunsaturated fatty acids. These fatty acids are important for neonatal development, health and immunity. Hemp seed oil has been investigated for the influence on human health, but research on the impact in pig nutrition is scarce. The aim of our research was to study the effect of dietary hemp seed oil relative to soybean oil to lactating sows on the transfer of fatty acids to the off-spring and the effect on piglets’ immune and nutritional status. Results The fatty acid composition of the hemp seed and the soybean oil influenced the fatty acid composition of sow plasma, colostrum and mature milk. The highest proportion of C18:3n-3, C18:4n-3 and C20:4n-6 was obtained in mature milk fat of sows fed 5% hemp seed oil diet when compared to the other dietary fat sources (5% soybean oil or a 50:50 mix of hemp and soybean oil at 5%). The effect of dietary oil supplementation to sows was reflected in the plasma fatty acids profile of piglets. Notably the proportion of C20:5n-3 and C22:5n-3 was the highest in plasma of piglets suckling sows fed hemp seed oil-containing diets, whereas no C18:4n-3 could be detected hence indicating conversion of α-linolenic acid (ALA) and stearidonic acid (SDA) to the longer chained n-3 polyunsaturated fatty acids. Dietary fat source also influenced number of born piglets, their weight gain during first week, plasma concentration of glucose and IgG, and haematological profile. Conclusions The hemp seed oil resulted in direct maternal supply with n-3 long-chain polyunsaturated fatty acids (LCPUFA), especially ALA and SDA, and piglets were able to convert these fatty acids obtained via the sow milk intake to C20:5n-3 and C22:5n-3. Furthermore, some interesting effects of the 5% hemp seed oil was obtained with regard to piglet initial body weight gain and glucose, which could be of interest for further research, i.e., the capability of hemp seed oil to benefit piglets during early life.

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A reduced cost strategy for enriching chicken meat with omega-3 long chain polyunsaturated fatty acids using dietary flaxseed oil

British Poultry Science ◽

10.1080/00071668.2017.1293798 ◽

2017 ◽

Vol 58 (3) ◽

pp. 283-289 ◽

Cited By ~ 15

Author(s):

K. Kanakri ◽

J. Carragher ◽

R. Hughes ◽

B. Muhlhausler ◽

R. Gibson

Keyword(s):

Fatty Acids ◽

Polyunsaturated Fatty Acids ◽

Flaxseed Oil ◽

Chicken Meat ◽

Omega 3 ◽

Cost Strategy ◽

Long Chain

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The effect of phosphorus starvation on the fatty acid composition of Visheria strains

Issues of modern algology (Вопросы современной альгологии) ◽

10.33624/2311-0147-2021-2(26)-159-163 ◽

2021 ◽

pp. 159-163

Author(s):

Zinaida V. Krivova ◽

Yevhen I. Maltsev ◽

Maxim S. Kulikovskiy

Keyword(s):

Fatty Acids ◽

Fatty Acid ◽

Polyunsaturated Fatty Acids ◽

Fish Oil ◽

Saturated Fatty Acids ◽

Nitrogen Concentration ◽

Stearidonic Acid ◽

Relevant Today ◽

Phosphorus Deprivation ◽

Long Chain

Fatty acids are widely used in various fields: in medicine, agriculture, in the production of dietary supplement and biofuels, for the maintenance of aquaculture. The main source of fatty acids is fish oil. The relevance of the search for an alternative to fish oil as a source of fatty acids remains relevant today. Many microalgae accumulate fatty acids in quantities sufficient for use in biotechnology. Many studies are currently being conducted on the biochemistry of eustigmatophyceae algae. Most representatives of this class accumulate such polyunsaturated fatty acids as eicosapentaenoic and docosahexaenoic, which are in demand in biotechnology, while maintaining the necessary growth rates of biomass. The strains of Vischeria vischeri described in this work were isolated from soil samples. The obtained fatty acid profiles show that the strains when growing on a BBM medium with a triple nitrogen concentration store a high percentage of saturated palmitic, monounsaturated palmitoleic and polyunsaturated eicosopentaenoic acids. In addition, one of the strains accumulates rare long-chain polyunsaturated fatty acids: stearidonic acid, eicosodienoic acid, and digomo-γ-linoleic acid. Also, an experiment on phosphorus deprivation was conducted with these strains: as a result of this study, it was found that the composition of the fatty acids of the strains practically did not change, however, the concentrations of saturated and monounsaturated acids became higher, and polyunsaturated ones decreased. This trend in changes in the concentrations of fatty acids remained for all the described strains. The strains have been shown to accumulate long-chain saturated fatty acids: behenic and cerotic.

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