Hostname: page-component-848d4c4894-cjp7w Total loading time: 0 Render date: 2024-07-02T08:51:35.888Z Has data issue: false hasContentIssue false
  • English
  • Français

Interannual and geographical reproducibility of the nutritional quality of milk fat from commercial grazing flocks

Published online by Cambridge University Press:  24 September 2012

Mailo Virto ,
Marian Bustamante ,
Juan Carlos Ruiz de Gordoa ,
Gustavo Amores ,
Paula N. Fernández-Caballero ,
Nerea Mandaluniz ,
Josune Arranz ,
Ana I. Nájera ,
Marta Albisu  and
Francisco J. Pérez-Elortondo
...Show all authors
Mailo Virto*
Affiliation:
Biochemistry and Molecular Biology, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 01006 Vitoria-Gasteiz, Spain
Marian Bustamante
Affiliation:
Biochemistry and Molecular Biology, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 01006 Vitoria-Gasteiz, Spain
Juan Carlos Ruiz de Gordoa
Affiliation:
Biochemistry and Molecular Biology, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 01006 Vitoria-Gasteiz, Spain
Gustavo Amores
Affiliation:
Biochemistry and Molecular Biology, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 01006 Vitoria-Gasteiz, Spain
Paula N. Fernández-Caballero
Affiliation:
Biochemistry and Molecular Biology, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 01006 Vitoria-Gasteiz, Spain
Nerea Mandaluniz
Affiliation:
NEIKER-Tecnalia, P.O. Box 46, 01080 Vitoria-Gasteiz, Spain
Josune Arranz
Affiliation:
NEIKER-Tecnalia, P.O. Box 46, 01080 Vitoria-Gasteiz, Spain
Ana I. Nájera
Affiliation:
Food Science and Technology, Faculty of Pharmacy, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 01006 Vitoria-Gasteiz, Spain
Marta Albisu
Affiliation:
Food Science and Technology, Faculty of Pharmacy, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 01006 Vitoria-Gasteiz, Spain
Francisco J. Pérez-Elortondo
Affiliation:
Food Science and Technology, Faculty of Pharmacy, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 01006 Vitoria-Gasteiz, Spain
Luis J. R. Barron
Affiliation:
Food Science and Technology, Faculty of Pharmacy, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 01006 Vitoria-Gasteiz, Spain
Mertxe de Renobales
Affiliation:
Biochemistry and Molecular Biology, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 01006 Vitoria-Gasteiz, Spain
*
*For correspondence; e-mail: mailo.virto@ehu.es
Get access Rights & Permissions [Opens in a new window]

Abstract

The objective of the present work was to study the differences in the fatty acid (FA) composition of raw sheep milk fat under commercial milk production conditions throughout lactation, in two consecutive years. Particular attention was placed on the C18:2cis-9,trans-11 isomer, C18:1trans-11 acid, and unsaturated FA as the feeding regimen of 10 commercial flocks of latxa dairy sheep changed from indoor feeding to part-time grazing conditions (from early spring) as traditionally practiced in the Basque Country (Northern Spain). Farms located at an altitude of between 600 and 700 m, in two different geographical areas with different rainfall were selected. Milk samples were collected monthly from late January (indoor feeding) until mid-, or end of, June (outdoor feeding), during two consecutive years. In spite of some interannual variability (most likely due to large differences in rainfall), the evolution of individual FA throughout lactation was comparable between years, indicating that it was reproducible under commercial milk production conditions. The average concentrations of C18:2cis-9,trans-11 isomer and C18:1trans-11 acid in milk from the commercial flocks increased about 200% during the transition period (end of March or early April until May), from indoor feeding (late January or early February until the end of March) to the outdoor period (early May to mid-June), remaining constant during the outdoor period (27·53 ± 9·32 μmol/g fat and 71·58 ± 20·53 μmol/g fat, respectively). Non-atherogenic FA comprised approximately 50% of all saturated FA at any time during lactation, whereas the milk atherogenicity index decreased significantly during the outdoor period. The Trolox-equivalent antioxidant capacity of the water-soluble milk fraction did not appear to be influenced by feeding management. The FA composition of cheeses made during the second year with milk from the indoor or outdoor periods reflected those of the corresponding milks. A principal components analysis clearly showed that differences in the milk FA composition were primarily due to outdoor grazing, with very little contribution from the geographical zone or the year.

Keywords

Grazingindoor feedinginterannual reproducibilitymilk fatCLAunsaturated fatty acids
Type
Research Article
Information
Journal of Dairy Research , Volume 79 , Issue 4 , November 2012 , pp. 485 - 494
Copyright
Copyright © Proprietors of Journal of Dairy Research 2012

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Abilleira, E, Collomb, M, Schlichtherle-Cerny, H, Virto, M, De Renobales, M & Barron, LJR 2009 Winter/Spring changes in fatty acid composition of farmhouse Idiazabal cheese due to different flock management systems. Journal of Agricultural and Food Chemistry 57 4746–4753CrossRefGoogle ScholarPubMed
Atti, N, Rouissi, H & Othmane, MH 2006 Milk production, milk fatty acid composition and conjugated linolieic acid (CLA) content in dairy ewes raised on feedlot or grazing pasture. Livestock Science 104 121–127CrossRefGoogle Scholar
Basque Metereology Agency http://www.euskalmet.euskadi.net/s07-5853x/es/meteorologia/home.apl?e=5Google Scholar
Bianchi, L, Nunzi, C, Pauselli, M, Moscati, L, Cestola, E, Duranti, E & Casoli, C 2011 Evaluating the antioxidante capacity in different fractions of sheep milk. Milchwissenschaft 66 410–413Google Scholar
Biondi, L, Valvo, MA, Di Gloria, M, Tenghi, ES, Galofaro, V & Priolo, A 2008 Changes in ewe milk fatty acids following turning out to pasture. Small Ruminant Research 75 17–23Google Scholar
Cabiddu, A, Decandia, M, Addis, M, Piredda, G, Pirisi, A & Molle, G 2005 Managing Mediterranean pastures in order to enhance the level of beneficial fatty acids in sheep milk. Small Ruminant Research 59 169–180Google Scholar
Chilliard, Y, Ferlay, A, Rouel, J & Lamberet, G 2003 A review of nutritional and physiological factors affecting goat milk lipid synthesis and lipolysis. Journal of Dairy Science 86 1751–1770CrossRefGoogle ScholarPubMed
Christie, WW 1982 A simple procedure for rapid transmethylation of glycerolipids and cholesteryl esters. Journal of Lipid Research 23 1072–1075CrossRefGoogle ScholarPubMed
Clausen, MR, Skibsted, LH & Stagsted, J 2009 Characterization of major radical scavenger species in bovine milk through size exclusion chromatography and functional assays. Journal of Agricultural and Food Chemistry 57 2912–2919Google Scholar
Couvreur, S, Hurtaud, C, Lopez, C, Delaby, L & Peyraud, JL 2006 The linear relationship between the proportion of fresh grass in the cow diet, milk fatty acid composition, and butter properties. Journal of Dairy Science 89 1956–1969Google Scholar
De la Fuente, LF, Barbosa, E, Carriedo, JA, Gonzalo, C, Arenas, RM, Fresno, JM & San Primitivo, F 2009 Factors influencing variation in fatty acid content in ovine milk. Journal of Dairy Science 92 3791–3799Google Scholar
De Renobales, M, Amores, G, Arranz, J, Virto, M, Barron, LJR, Bustamante, MA, Ruiz de Gordoa, JC, Nájera, AI, Valdivielso, I, Abilleira, E, Beltrán de Heredia, I, Pérez-Elortondo, FJ, Ruiz, R, Albisu, M & Mandaluniz, N 2012 Part-time grazing improves sheep milk production and its nutritional characteristics. Food Chemistry 130 90–96Google Scholar
Elwood, PC, Givens, DI, Beswick, AD, Fehily, AM, Pickering, JE & Gallcher, J 2008 The survival advantage of milk and dairy consumption: an overview of evidence from cohort studies of vascular diseases, diabetes and cancer. Journal of the American College of Nutrition 27 723S–734SGoogle Scholar
Ferlay, A, Agabriel, C, Sibra, C, Journal, C, Martin, B & Chilliard, Y 2008 Tanker milk variability in fatty acids according to farm feeding and husbandry practices in a French semimountain area. Dairy Science and Technology 88 193–215CrossRefGoogle Scholar
Folch, J, Lees, M & Stanley, GHS 1957 A simple method for the isolation and purification of total lipids from animal tissues. Journal of Biological Chemistry 226 497–509CrossRefGoogle ScholarPubMed
Gómez-Cortés, P, Frutos, P, Mantecón, AR, Juárez, M, de la Fuente, MA & Hervás, G 2009 Effect of supplementation of grazing dairy ewes with a cereal concentrate on animal performance and milk fatty acid profile. Journal of Dairy Science 92 3964–3972Google Scholar
Hodgson, J, Forbes, TDA, Armstrong, RH, Beattie, MM & Hunter, EA 1991 Comparative studies of the ingestive behaviour and herbage intake of sheep and cattle grazing on indigenous hill plant communities. Journal of Applied Ecology 28 205–227Google Scholar
Jenkins, TC & McGuire, MA 2006 Major advances in nutrition: impact on milk composition. Journal of Dairy Science 89 1302–1310Google Scholar
Kelsey, JA, Corl, BA, Collier, RJ & Bauman, DM 2003 The effect of breed, parity, and stage of lactation on conjugated linoleic acid (CLA) in milk fat from dairy cows. Journal of Dairy Science 86 2588–3893CrossRefGoogle ScholarPubMed
Licitra, G 2011 World wide traditional cheeses: banned for business? Dairy Science and Technology 90 357–374Google Scholar
Lock, AL & Garnsworthy, PC 2003 Seasonal variation in milk conjugated linoleic acid and Δ9-desaturase activity in dairy cows. Livestock Production Science 79 47–59Google Scholar
Luna, P, Fontecha, J, Juárez, M & de la Fuente, MA 2005 Conjugated linoleic acid in ewe milk fat. Journal of Dairy Research 72 415–424CrossRefGoogle ScholarPubMed
Martini, M, Liponi, GB & Salari, F 2010 Effect of forage:concentrate ratio on the quality of ewe's milk, especially on milk fat globules characteristics and fatty acids composition. Journal of Dairy Research 77 239–244Google Scholar
Mele, M, Contarini, G, Cercari, L, Serra, A, Buccioni, A, Povolo, M, Conte, G, Funaro, A, Banni, S, Lercker, G & Secchiari, P 2011 Enrichment of Pecorino cheese with conjugated linoleic acid by feeding dairy ewes with extruded linseed: effect on fatty acid and triglycerides composition and on oxidative stability. International Dairy Journal 21 365–372Google Scholar
Method PE/ALVO/02 of Laboratorio Instituto Lactológico de Lekunberri (Navarra), acredited by ENAC according to criteria described in the Norm UNE-EN ISO/IEC 17025:2005. http://www.illekunberri.com/docs/documentos/AlcanceAcreditaconALVO_LE381_REV7.pdfGoogle Scholar
Oregui, LM & Falagan-Prieto, A 2006 Spécificités et diversité des systèmes de production o, vine et caprine dans le Bassin Méditerranéen (Specificity and diversity of sheep and goat production systems in Mediterranean Basin). Options Méditerranéenes A 70 77–86Google Scholar
Ostrovský, I, Pavlíková, E, Blaško, J, Górová, R, Kubinec, R, Margetín, M & Soják, L 2009 Variation in fatty acid composition of ewes’ milk during continuous transition from dry winter to natural pasture diet. International Dairy Journal 19 545–549Google Scholar
Parodi, PW 2003 Anti-cancer agents in milkfat. Australian Journal of Dairy Technology 58 114–118Google Scholar
Parodi, PW 2009 Has the association between saturated fatty acids, serum cholesterol and coronary heart disease been over emphasized? International Dairy Journal 19 345–361CrossRefGoogle Scholar
Sanz Sampelayo, MR, Chilliard, Y, Schmidely, Ph & Boza, J 2007 Influence of type of diet on the fat constituents of goat and sheep milk. Small Ruminant Research 68 42–63CrossRefGoogle Scholar
Toral, PG, Frutos, P, Hervás, G, Gómez-Cortés, P, Juárez, M & de la Fuente, MA 2010 Changes in milk fatty acid profile and animal performance in response to fish oil supplementation, alone or in combination with sunflower oil, in dairy ewes. Journal of Dairy Science 93 1604–1615CrossRefGoogle ScholarPubMed
Tsiplakou, E, Mountzouris, KC & Zervas, G 2006 Concentration of conjugated linoleic acid in grazing sheep and goat milk fat. Livestock Science 103 74–84Google Scholar
Tsiplakou, E, Kotrotsios, V, Hadjigeorgiou, I & Zervas, G 2010 Differences in sheep and goats milk fatty acid profile between conventional and organic farming systems. Journal of Dairy Research 77 343–349CrossRefGoogle ScholarPubMed
Ulbricht, TLV & Southgate, DAT 1991 Coronary heart disease: seven dietary factors. Lancet 338 985–992Google Scholar
Zulueta, A, Maurizi, A, Frigola, A, Esteve, MJ, Coli, R & Burini, G 2009 Antioxidant capacity of cow milk, whey and deproteinized milk. International Dairy Journal 19 380–385. And references cited in this paperGoogle Scholar