Free range rearing of pigs with access to pasture grazing — effect on fatty acid composition and lipid oxidation products

Nilzén, V; Babol, J; Dutta, Paresh C.; Lundeheim, N.; Enfält, Ann‐Charlotte; Lundström, Kerstin

doi:10.1016/s0309-1740(00)00164-9

Cited by 112 publications

(84 citation statements)

References 23 publications

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“…The a-tocopherol contents in porcine tissues reflect the tocopherol concentration of the diets (Daza et al, 2005), and therefore, the high levels of a-tocopherol in the grass and acorns with which Iberian pigs were fed explain the high levels of such substances in their tissues. The influence of the intake of natural resources on the tocopherol levels in porcine tissues from free-range-reared pigs has been previously described (Rey et al, 1998;Cava et al, 2000;Nilzé n et al, 2001), which is consistent with the present results. On the other hand, the dietary supplementation with a-tocopherol was a successful strategy to increase atocopherol levels in porcine tissues.…”

Section: Resultssupporting

confidence: 93%

“…Tocopherols are the most important natural antioxidants in meat and meat products and their protective activity against oxidation has been largely described in meat and several meat products (Ló pez-Bote and Nilzé n et al, 2001). Tocopherols have been described as successful inhibitors of lipid-oxidative reactions during ripening of Iberian dry-cured ham improving some particular sensory characteristics such as flavour and odour intensity .…”

Section: Resultsmentioning

confidence: 99%

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Chemical composition and oxidative status of tissues from Iberian pigs as affected by diets: extensive feeding v. oleic acid- and tocopherol-enriched mixed diets

Ventanas

Tejeda

Estévez

2008

Animal

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The present work was intended to analyse the chemical composition and oxidative stability of the muscle biceps femoris and adipose tissues from Iberian pigs fed different finishing diets: free-range feeding on grass and acorns in a 'Montanera' traditional system (MON), fed in confinement with a mixed diet containing high-oleic sunflower oil (115 g/kg of diet) and supplemented with 250 mg/kg a-tocopherol (HOVE), and fed in confinement with a tocopherol-non-supplemented control mixed diet (CON). Muscles from MON pigs contained significantly (P , 0.05) higher amounts of intramuscular fat than those from HOVE and CON pigs. Muscles from MON and HOVE pigs had significantly higher levels of a-tocopherol than muscles from CON pigs whereas free-range feeding provided significantly higher levels of g-tocopherol to muscles from MON pigs than the experimental diets did to CON and HOVE pigs. Adipose tissues from MON and HOVE pigs contained significantly lower proportions of saturated fatty acids and significantly higher levels of oleic acid and monounsaturated fatty acids than those from CON pigs. Tissues from MON pigs contained significantly smaller levels of polyunsaturated fatty acids than those from CON and HOVE pigs. To a higher extent, feeding background affected the fatty acid composition of polar lipids from the muscle biceps femoris than that of neutral lipids. Tissues from MON pigs contained significantly smaller v-6/v-3 values than those from pigs fed mixed diets. Compared to tissues from CON pigs, those from MON and HOVE pigs exhibited a higher oxidative stability as a likely result of a most favourable fatty acid composition and the presence of higher tocopherol levels.

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Section: Resultssupporting

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Chemical composition and oxidative status of tissues from Iberian pigs as affected by diets: extensive feeding v. oleic acid- and tocopherol-enriched mixed diets

Ventanas

Tejeda

Estévez

2008

Animal

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“…Muscle α-tocopherol concentration was similar among genotypes (Table 3), according to Nilzén et al (2001). Similar values of α-tocopherol concentration have been noted in muscle from female, castrated male and entire male pigs (Högberg et al, 2004).…”

Section: Meat Qualitysupporting

confidence: 75%

Growth, Carcass and Meat Quality of Casertana, Italian Large White and Duroc x (Landrace x Italian Large White) Pigs Reared Outdoors

Maiorano

Gambacorta

Tavaniello

et al. 2013

Italian Journal of Animal Science

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To compare growth, skeletal development, carcass traits and meat quality of different genotypes, 10 Casertana (CT), 10 Italian Large White (LW) and 10 Duroc x (Landrace x Italian Large White) (DU) crosses, barrows of 90 days of age, were allotted to the same outdoor rearing and feeding conditions. Live weight was recorded and average daily gain (ADG) was calculated. At slaughter (330-day-old) dressing and lean percentages were determined; backfat thickness and loin eye depth were measured. Carcasses were dissected into commercial cuts. Water holding capacity, pH and colour (45 min and 24 h post-mortem) were measured. Longissimus lumborum muscle samples were collected for cholesterol, α-tochopherol and intramuscular collagen (IMC) analyses. CT compared to DU and LW had the lowest growth rate and skeletal development.Casertana showed higher backfat thickness, lower lean cut/fatty cut ratio and less lean meat (P<0.05). Loin eye depth differed among genotypes with LW>DU>CT (P<0.05). CT showed higher red colour of the meat than DU and LW (P<0.05). CT compared to LW had the highest hydroxylysylpiridinoline (HLP) crosslink concentration and HLP/IMC ratio, and a lower IMC amount (P<0.05). Casertana pigs produced meat that could be tougher than that from the improved breed, but more acceptable from the technological point of view.At eleven months of age bone weight, length and diameter were clearly genetic type-related; differently, the bone maturity was similar among the genotypes studied.

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“…Ashes content was no significantly different between breeds or sexes, such as Pugliese et al (2004a) results as well as in the studies by Nilzén et al (2001) and Estévez et al (2006), comparing Iberian and commercial. Though, the last authors found lower values than in the present work.…”

Section: Meat Chemical Characteristicssupporting

confidence: 50%

Pork Meat Quality of Preto Alentejano and Commercial Largewhite Landrace Cross

Teixeira

Rodrigues

2013

Journal of Integrative Agriculture

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This work aimed to evaluate the physical-chemical characteristics of pork from a local breed (Portuguese black pork called Preto Alentejano) and a commercial breed. Sixteen animals were used, 4 females and 4 males from each breed. Animals had 80-100 kg of live weight. The longissimus muscle between the 5th thoracic vertebra and the 10th lumbar vertebra was used in the analysis. Samples were analysed for protein, fat, pigments, ashes, dry mater, water-holding capacity, and texture.Results of fat and pigments contents indicate significant (P<0.05 and P<0.01) differences for all treatments. For protein, ashes, dry mater, water-holding capacity and texture, no significant differences were found for sex. In the analysis of fatty acids composition, ten were detected, being the main ones C16:0, C18:0, C16:1, C18:1, C18:2. There was a predominance of monounsaturated fatty acids (MUFA), followed by saturated (SFA) and polyunsaturated (PUFA). Differences were significant for sex (P<0.01) and breed (P<0.01). Preto Alentejano breed and females presented the higher percentages of SFA (P<0.01) and MUFA (P<0.001) fatty acids. Differences between breeds might be due to breed production system and feed differences.

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Free range rearing of pigs with access to pasture grazing — effect on fatty acid composition and lipid oxidation products

Cited by 112 publications

References 23 publications

Chemical composition and oxidative status of tissues from Iberian pigs as affected by diets: extensive feeding v. oleic acid- and tocopherol-enriched mixed diets

Chemical composition and oxidative status of tissues from Iberian pigs as affected by diets: extensive feeding v. oleic acid- and tocopherol-enriched mixed diets

Growth, Carcass and Meat Quality of Casertana, Italian Large White and Duroc x (Landrace x Italian Large White) Pigs Reared Outdoors

Pork Meat Quality of Preto Alentejano and Commercial Largewhite Landrace Cross

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