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Effect of sex, dietary glycerol or dietary fat during late fattening, on fatty acid composition and positional distribution of fatty acids within the triglyceride in pigs.
Animal. 2015 Nov; 9(11):1904-11.A

Abstract

The effect of sex, source of saturated fat (lard v. palm oil) and glycerol inclusion in the fattening diet on composition and fatty acid positional distribution in the triglyceride molecule was studied in pigs from 78 to 110 kg BW. Average daily gain and carcass characteristics, including ham and loin weight, were not affected by dietary treatment but sex affected backfat depth (P < 0.01). A significant interaction between sex and glycerol inclusion was observed; dietary glycerol increased lean content in gilts but not in barrows (P < 0.05 for the interaction). Individual and total saturated fatty acid (SFA) concentrations were greater in barrows than in gilts. In contrast, the concentration of total polyunsaturated fatty acids (PUFA) and of C18:2n-6, C18:3n-3, C20:3n-9 and C20:4n-6 in the intramuscular fat (IMF) was higher (P < 0.05) in gilts than in barrows. Sex did not affect total monounsaturated fatty acids (MUFA) concentration in the IMF. The proportion of SFA in the subcutaneous fat (SF) was higher in barrows than in gilts (P < 0.001). Within the individual SFA, sex affected only the concentrations of C14:0 and C16:0 (P < 0.001). Dietary fat did not affect total SFA or PUFA concentrations of the IMF but the subcutaneous total MUFA concentration tended to be higher (P = 0.079) in pigs fed lard than in pigs fed palm oil. Dietary glycerol increased total MUFA and C18:1n-9 concentration in the IMF and increased total MUFA and decreased C18:2n-6, C18:3n-3 and total PUFA concentrations in the SF. The data indicate that altering the fatty acid composition of the triglyceride molecule at the 2-position, by dietary intervention during the fattening phase, is very limited.

Authors+Show Affiliations

1Departamento de Producción Animal,Universidad Complutense de Madrid,28040 Madrid,Spain.2Departamento de Nutrición y Bromatología,Universidad Complutense de Madrid,28040 Madrid,Spain.3CEI Campus Moncloa,UCM-UPM,28040 Madrid,Spain.5Incarlopsa,Tarancón,16400,Cuenca,Spain.3CEI Campus Moncloa,UCM-UPM,28040 Madrid,Spain.1Departamento de Producción Animal,Universidad Complutense de Madrid,28040 Madrid,Spain.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26272512

Citation

Segura, J, et al. "Effect of Sex, Dietary Glycerol or Dietary Fat During Late Fattening, On Fatty Acid Composition and Positional Distribution of Fatty Acids Within the Triglyceride in Pigs." Animal : an International Journal of Animal Bioscience, vol. 9, no. 11, 2015, pp. 1904-11.
Segura J, Cambero MI, Cámara L, et al. Effect of sex, dietary glycerol or dietary fat during late fattening, on fatty acid composition and positional distribution of fatty acids within the triglyceride in pigs. Animal. 2015;9(11):1904-11.
Segura, J., Cambero, M. I., Cámara, L., Loriente, C., Mateos, G. G., & López-Bote, C. J. (2015). Effect of sex, dietary glycerol or dietary fat during late fattening, on fatty acid composition and positional distribution of fatty acids within the triglyceride in pigs. Animal : an International Journal of Animal Bioscience, 9(11), 1904-11. https://doi.org/10.1017/S1751731115001639
Segura J, et al. Effect of Sex, Dietary Glycerol or Dietary Fat During Late Fattening, On Fatty Acid Composition and Positional Distribution of Fatty Acids Within the Triglyceride in Pigs. Animal. 2015;9(11):1904-11. PubMed PMID: 26272512.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of sex, dietary glycerol or dietary fat during late fattening, on fatty acid composition and positional distribution of fatty acids within the triglyceride in pigs. AU - Segura,J, AU - Cambero,M I, AU - Cámara,L, AU - Loriente,C, AU - Mateos,G G, AU - López-Bote,C J, Y1 - 2015/08/14/ PY - 2015/8/15/entrez PY - 2015/8/15/pubmed PY - 2016/10/1/medline KW - dietary fat KW - glycerol KW - intramuscular fat KW - pig KW - positional fatty acid distribution. SP - 1904 EP - 11 JF - Animal : an international journal of animal bioscience JO - Animal VL - 9 IS - 11 N2 - The effect of sex, source of saturated fat (lard v. palm oil) and glycerol inclusion in the fattening diet on composition and fatty acid positional distribution in the triglyceride molecule was studied in pigs from 78 to 110 kg BW. Average daily gain and carcass characteristics, including ham and loin weight, were not affected by dietary treatment but sex affected backfat depth (P < 0.01). A significant interaction between sex and glycerol inclusion was observed; dietary glycerol increased lean content in gilts but not in barrows (P < 0.05 for the interaction). Individual and total saturated fatty acid (SFA) concentrations were greater in barrows than in gilts. In contrast, the concentration of total polyunsaturated fatty acids (PUFA) and of C18:2n-6, C18:3n-3, C20:3n-9 and C20:4n-6 in the intramuscular fat (IMF) was higher (P < 0.05) in gilts than in barrows. Sex did not affect total monounsaturated fatty acids (MUFA) concentration in the IMF. The proportion of SFA in the subcutaneous fat (SF) was higher in barrows than in gilts (P < 0.001). Within the individual SFA, sex affected only the concentrations of C14:0 and C16:0 (P < 0.001). Dietary fat did not affect total SFA or PUFA concentrations of the IMF but the subcutaneous total MUFA concentration tended to be higher (P = 0.079) in pigs fed lard than in pigs fed palm oil. Dietary glycerol increased total MUFA and C18:1n-9 concentration in the IMF and increased total MUFA and decreased C18:2n-6, C18:3n-3 and total PUFA concentrations in the SF. The data indicate that altering the fatty acid composition of the triglyceride molecule at the 2-position, by dietary intervention during the fattening phase, is very limited. SN - 1751-732X UR - https://www.unboundmedicine.com/medline/citation/26272512/Effect_of_sex_dietary_glycerol_or_dietary_fat_during_late_fattening_on_fatty_acid_composition_and_positional_distribution_of_fatty_acids_within_the_triglyceride_in_pigs_ L2 - https://www.cambridge.org/core/product/identifier/S1751731115001639/type/journal_article DB - PRIME DP - Unbound Medicine ER -