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Tissue fatty acid composition of pigs fed different fat sources.
Animal. 2008 Dec; 2(12):1753-62.A

Abstract

Dietary fat influences the physico-chemical properties of meat, and fatty acid (FA) composition may have implications on human health. The objectives of the experiment were to study tissue FA partitioning and the effect of dietary fat source on tissue FA composition. Seventy crossbred gilts (61.8 ± 5.2 kg BW average) were fed one of seven treatments: a diet containing a very low level of fat (no fat (NF)) and six fat-supplemented diets (10%: tallow (T), high-oleic sunflower oil (HOSF), sunflower oil (SFO), linseed oil (LO), fat blend (FB: 55% tallow, 35% SFO, 10% LO) and fish oil blend (FO: 40% fish oil, 60% LO). Differential tissue FA depositions were observed, with flare fat being the most saturated, followed by intermuscular, and subcutaneous being the least saturated. Monounsaturated fatty acid (MUFA) deposition showed an opposite tissue pattern. Subcutaneous fat showed the highest MUFAs, intermuscular fat showed intermediate values and flare fat showed the lowest MUFAs. Intramuscular polyunsaturated fatty acid (PUFA) content was less susceptible to dietary treatment modifications compared with other depots. Significant tissue FA modifications were observed due to dietary treatments, mainly in diets rich in PUFA. The saturated fatty acids (SFA) were high in NF-fed and low in HOSF-fed animals, MUFA were high in HOSF-fed and low in SFO-, LO- and FO-fed animals, while PUFA were high in SFO- and LO-fed and low in HOSF-, T- and NF-fed animals. Pigs fed LO and FB showed detectable levels of EPA, which depended on the linolenic content of the diet. The only effective way to increase tissue DHA contents was to add DHA in the diet through FO feeding. Araquidonic acid was high in SFO diets and low in LO and FB diets, and also high in intramuscular fat compared with other tissues. EPA and DHA were also high in intramuscular fat compared with other fat depots. The deposition of oleic and linoleic acids depended on the composition of dietary fat, as their deposition varied between diets, even at similar levels of intake of each FA. The NF diet resulted in the greatest proportion of SFAs (palmitic and stearic) of all treatments tested. SFAs were less susceptible to modification than MUFA in response to the different PUFA levels supplemented in the diet. T resulted in less fat deposition in some of the fat depots and more in others, suggesting that T could partition fat differently among fat depots.

Authors+Show Affiliations

1CENTA, IRTA Building A - Finca Camps i Armet E-17121 Monells, Girona, Spain.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

22444081

Citation

Duran-Montgé, P, et al. "Tissue Fatty Acid Composition of Pigs Fed Different Fat Sources." Animal : an International Journal of Animal Bioscience, vol. 2, no. 12, 2008, pp. 1753-62.
Duran-Montgé P, Realini CE, Barroeta AC, et al. Tissue fatty acid composition of pigs fed different fat sources. Animal. 2008;2(12):1753-62.
Duran-Montgé, P., Realini, C. E., Barroeta, A. C., Lizardo, R., & Esteve-Garcia, E. (2008). Tissue fatty acid composition of pigs fed different fat sources. Animal : an International Journal of Animal Bioscience, 2(12), 1753-62. https://doi.org/10.1017/S1751731108003169
Duran-Montgé P, et al. Tissue Fatty Acid Composition of Pigs Fed Different Fat Sources. Animal. 2008;2(12):1753-62. PubMed PMID: 22444081.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Tissue fatty acid composition of pigs fed different fat sources. AU - Duran-Montgé,P, AU - Realini,C E, AU - Barroeta,A C, AU - Lizardo,R, AU - Esteve-Garcia,E, PY - 2012/3/27/entrez PY - 2008/12/1/pubmed PY - 2008/12/1/medline SP - 1753 EP - 62 JF - Animal : an international journal of animal bioscience JO - Animal VL - 2 IS - 12 N2 - Dietary fat influences the physico-chemical properties of meat, and fatty acid (FA) composition may have implications on human health. The objectives of the experiment were to study tissue FA partitioning and the effect of dietary fat source on tissue FA composition. Seventy crossbred gilts (61.8 ± 5.2 kg BW average) were fed one of seven treatments: a diet containing a very low level of fat (no fat (NF)) and six fat-supplemented diets (10%: tallow (T), high-oleic sunflower oil (HOSF), sunflower oil (SFO), linseed oil (LO), fat blend (FB: 55% tallow, 35% SFO, 10% LO) and fish oil blend (FO: 40% fish oil, 60% LO). Differential tissue FA depositions were observed, with flare fat being the most saturated, followed by intermuscular, and subcutaneous being the least saturated. Monounsaturated fatty acid (MUFA) deposition showed an opposite tissue pattern. Subcutaneous fat showed the highest MUFAs, intermuscular fat showed intermediate values and flare fat showed the lowest MUFAs. Intramuscular polyunsaturated fatty acid (PUFA) content was less susceptible to dietary treatment modifications compared with other depots. Significant tissue FA modifications were observed due to dietary treatments, mainly in diets rich in PUFA. The saturated fatty acids (SFA) were high in NF-fed and low in HOSF-fed animals, MUFA were high in HOSF-fed and low in SFO-, LO- and FO-fed animals, while PUFA were high in SFO- and LO-fed and low in HOSF-, T- and NF-fed animals. Pigs fed LO and FB showed detectable levels of EPA, which depended on the linolenic content of the diet. The only effective way to increase tissue DHA contents was to add DHA in the diet through FO feeding. Araquidonic acid was high in SFO diets and low in LO and FB diets, and also high in intramuscular fat compared with other tissues. EPA and DHA were also high in intramuscular fat compared with other fat depots. The deposition of oleic and linoleic acids depended on the composition of dietary fat, as their deposition varied between diets, even at similar levels of intake of each FA. The NF diet resulted in the greatest proportion of SFAs (palmitic and stearic) of all treatments tested. SFAs were less susceptible to modification than MUFA in response to the different PUFA levels supplemented in the diet. T resulted in less fat deposition in some of the fat depots and more in others, suggesting that T could partition fat differently among fat depots. SN - 1751-7311 UR - https://www.unboundmedicine.com/medline/citation/22444081/Tissue_fatty_acid_composition_of_pigs_fed_different_fat_sources_ L2 - https://www.cambridge.org/core/product/identifier/S1751731108003169/type/journal_article DB - PRIME DP - Unbound Medicine ER -
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