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Comparison of fatty acid profile in erythrocyte membranes of beagle dogs in weeks 0, 8 and 16 in summer and winter periods.
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Fatty acids from the omega-3 family play an important role in both human and animal organisms, but they are not synthesized in the body and must be provided with diet. This study examined an effect of ethyl esters of linseed oil rich in alpha-linolenic acid supplemented to healthy beagle dogs on the fatty acid profile of their blood...
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... results for changes in the fatty acid composition in the erythrocyte membranes are presented in Table 5. In both the summer and winter periods, a significant increase in PUFA content and a decrease in SFA at week 8 was observed. ...Similar publications
Omega-3 fatty acids are an important factor contributing to the prevention and cure of numerous diseases, and therefore their supplementation with diet is a significant issue. There are numerous supplements on the market containing omega-3 acids, of both plant and animal origin. In our study, we compared an effect of linseed oil, ethyl esters of li...
Citations
... Flaxseed oil is known for its high content of essential fatty acids, particularly α-linolenic acid (ALA), an omega-3 fatty acid known for its health benefits [28]. Analyzing the fatty acid composition of flaxseed oil offers valuable insights into its potential health advantages and suitability for various applications [29]. ...
This study explored the efficacy of rosemary as a natural antioxidant and preservative to combat oxidative rancidity in linseed oil. The characterization of rosemary essential oil and extract demonstrated a high phenolic content, particularly in rosmarinic and carnosic acids. Utilizing optimized mixture design, a potent fat preservative was developed that leveraged the synergistic interactions of these rosemary compounds. The preservative exhibited significant antioxidant activity, evidenced by reductions in acidity levels (0.773 to 1.097) and peroxide values (1.473 to 2.494), as well as notable shifts in extinction values of linseed oil subjected to thermo-oxidative stress. Furthermore, it effectively preserved the stability of key fatty acids, outperforming the synthetic preservative BHT in preventing the oxidation of primary fatty acids, including stearic, oleic, linoleic, and α-linoleic acids. These findings underscored the potential of rosemary-derived preservatives to enhance oxidative stability and extend the shelf life of linseed oil, offering promising implications for food quality and safety.
... The synthesis of fatty acids in the epidermis can be low, and dietary fat plays an important role. Hence supplemented or dietetic fatty acids can change lipid composition in epidermis (Kirby et al. 2007(Kirby et al. , 2009Marsh et al. 2008), and therefore affect sebum composition in dogs (Wyrostek et al. 2023). Both experimental diets presented enough total fat and essential fatty acid (linoleic acid) to achieve adult dogs' requirements according to FEDIAF (2021). ...
Black soldier fly meal in pet diets is gaining acceptance. This study aimed to assess the use of black soldier fly larvae defatted meal (BSFL) and its impact on blood parameters, biochemical markers, organic antioxidant capacity, skin barrier function and skin and coat quality. A cross-over study involved eight beagle dogs with two periods of 50 days each and a washout period of seven days in between. Two approximately iso-nutritive extruded diets were evaluated, the first containing 29.5% BSFL meal and a control diet containing 26% poultry by-product meal (PBP) as protein source. Skin and coat evaluations and blood collections were conducted before and after each period. Skin barrier function was assessed by measurement of trans epidermal water loss (TEWL) and stratum corneum hydration (SCH) in belly and pinna of the dogs on days 0, 15, 30, and 45 of each period. A trend for higher antioxidant effect significant reduction in serum scavenging capacity was found with PBP for BSFL diet trough malondialdehyde and Vitamin E measurement in dog's serum 2,2-diphenyl-1-picryl-hydrazyl (DPPH) assay. When fed PBP diet dogs exhibited reduction in serum cholesterol triglycerides and decreased LDL levels after 50 days, while dogs fed BSFL presented significant reduction in ALT. TEWL was significantly reduced in belly and pinna over time when dogs were fed BSFL, and TEWL in belly was significantly lower in dogs fed BSFL in comparison to PBP. while Increased SCH was also higher for the BSFL group observed in the same along the feeding period in comparison to PBP, indicating improved ability of the dogs to retain water and keep skin moisture. Improvement skin barrier function could be related to fatty acids from BSFL and increased sebaceous lipids in skin. These are responsible for to avoid water loss and improve skin protection against microbial insults. Inclusion of BSFL as protein source did not promote negative changes in blood biochemistry and had minor antioxidant effect in healthy dogs. However, it proved effective in improving skin barrier function, making BSFL a valuable alternative protein source for dogs, particularly those with sensitive skin or allergies manifesting on the skin.
