scholarly journals Relationships Between Fat and Cholesterol Contents and Fatty Acid Composition in Different Meat-Producing Animal Species

2020 ◽  
Vol 70 (3) ◽  
pp. 374-385
Author(s):  
Violeta Razmaitė ◽  
Artūras Šiukščius ◽  
Rūta Šveistienė ◽  
Saulius Bliznikas ◽  
Virginija Jatkauskienė
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Beef Cattle ◽  
Acid Composition ◽  
Red Deer ◽  
Animal Species ◽  
Cholesterol Content ◽  
Intramuscular Fat ◽  
Fat Content

AbstractThe objective of this study was to determine the relationships between intramuscular fat, cholesterol contents and fatty acid composition in the muscles of different animal species. Intramuscular fat, cholesterol and fatty acid composition in 207 muscle samples from 129 animals of different species (pigs, beef cattle, farmed red deer, horses and geese) were determined and analysed. The obtained results indicated unequal relations between intramuscular fat and cholesterol contents and fatty acid proportions in the muscles of different animal species. The increase of intramuscular fat content resulted in higher monounsaturated and lower polyunsaturated fatty acid contents in most muscles of meat producing animals. In all the species higher fatness did not show any increase in cholesterol content and also cholesterol contents were lower as fat increased in m. semimembranosus of pigs and m. pectoralis profundus of horses. The cholesterol content positively correlated with saturated and monounsaturated fatty acids in the longissimus muscle with the lowest fat content found in red deer and beef cattle, whereas the correlations between these measures were negative in m. pectoralis profundus of horses and the breast of goose containing high fat levels. Negative correlations between polyunsaturated fatty acids and cholesterol content were found in the longissimus muscle of red deer and cattle, whereas these correlations in goose breast and horse meat were positive.

Performance, pork quality and fatty acid composition of entire males, surgically castrated or immunocastrated males, and female pigs reared under organic system

2013 ◽  
Vol 16 (1) ◽  
pp. 107-114 ◽  
Author(s):  
E.R. Grela ◽  
E. Kowalczuk-Vasilev ◽  
R. Klebaniuk
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Polyunsaturated Fatty Acids ◽  
Acid Composition ◽  
Intramuscular Fat ◽  
Fat Content ◽  
Quality Traits ◽  
Organic System ◽  
Pig Production

Abstract This study was carried out on the farm specializing in organic pig production on 80 fatteners of the Polish native Pulawska breed, allocated into 4 groups (20 pigs each): EM - entire (uncastrated) males, IM - immunocastrates - males vaccinated with ImprovacR, CM - surgically castrated males and G - gilts. The highest average daily gains were achieved by the IM group, slightly lower by EM, whereas the lowest by CM and G groups. Content of polyunsaturated fatty acids (PUFA) in intramuscular fat and backfat (10.19% and 10.68%, respectively) of IM was lower (P ≤ 0.05) than in fat of EM (11.4% and 13.20%, respectively), but higher (P ≤ 0.05) in comparison to CM (8.43% and 8.71%, respectively). Vaccination of boars against GnRH has not decreased quality traits of organically produced pork. Furthermore, comparing to meat from surgically castrated males, it resulted in better qualities (lower fat content in carcass, higher PUFA level in fat, better physicochemical meat properties).

scholarly journals Circulating Non-Esterified Fatty Acids as Biomarkers for Fat Content and Composition in Pigs

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 386
Author(s):  
Marc Tor ◽  
Francesca Vilaró ◽  
Roger Ros-Freixedes ◽  
Javier Álvarez-Rodríguez ◽  
Lluís Bosch ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Intramuscular Fat ◽  
Fat Content ◽  
Adipose Tissues ◽  
Esterified Fatty Acids ◽  
Fasting Duration ◽  
Intramuscular Fat Content

Circulating non-esterified fatty acids (NEFA) can reflect the composition of dietary fat or adipose tissues depending on the fasting conditions. Therefore, circulating NEFA may be valuable as biomarkers for meat quality traits, such as intramuscular fat content and fatty acid composition in finishing pigs. Genetic variants that regulate lipid metabolism can also modulate the circulating NEFA. We conducted an experiment with 150 heavy Duroc pigs to evaluate fluctuations in the circulating NEFA composition due to age, fasting duration and two genetic polymorphisms, one in the leptin receptor (LEPR; rs709596309) and one in the stearoyl-CoA desaturase (SCD; rs80912566) gene. Circulating NEFA were more saturated and less monounsaturated than the subcutaneous and intramuscular adipose tissues. Absolute circulating NEFA content was more influenced by fasting duration than age. The SCD polymorphism did not impact NEFA content or composition. The LEPR polymorphism affected the content but not the fatty acid composition. Circulating oleic acid NEFA content after a short fasting was positively correlated with intramuscular fat content and, after a long fasting, with intramuscular oleic acid content. We conclude that circulating NEFA reflect environmental and genetic metabolic changes but are of limited value as biomarkers for intramuscular fat content and fatty acid composition.

Fat content and fatty acids profile of colostrum and milk of primitive Konik horses (Equus caballus gmelini Ant.) during six months of lactation

2008 ◽  
Vol 75 (3) ◽  
pp. 302-309 ◽  
Author(s):  
Jan Pikul ◽  
Jacek Wójtowski ◽  
Romualda Danków ◽  
Beata Kuczyńska ◽  
Jacek Łojek
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Equus Caballus ◽  
Fat Content ◽  
Slight Effect ◽  
Milk Samples ◽  
Stage Of Lactation ◽  
Fatty Acids Profile

The effect of the stage of lactation, the number of foals and age of the mare on changes in the fat content and fatty acid composition of colostrum and milk of primitive Konik horses was investigated. Colostrum and milk samples from 12 lactating mares were collected at the beginning of lactation, on the days 1 and 2 after foaling and then, starting from the first month of lactation, at 4-week intervals up to the sixth month of lactation. Significant differences were observed in fat content as well as the composition of some analysed fatty acids between colostrum and milk of mares of the Konik breed. The number of foalings and the age of mares did not have a statistically significant effect on the fat content in milk and had only a slight effect on the fatty acid composition. Milk produced by mares of the Konik breed is characterized by a considerable content of polyene fatty acids with 18 carbon atoms, a low ratio of n-6 fatty acids to n-3 fatty acids as well as low, highly advantageous values of atherogenic and thrombogenic indices.

scholarly journals Fatty acid composition of subcutaneous and intramuscular adipose tissue in east Balkan pigs

2015 ◽  
Vol 31 (4) ◽  
pp. 543-550 ◽  
Author(s):  
T. Popova ◽  
J. Nakev ◽  
Y. Marchev
Keyword(s):  
Fatty Acids ◽  
Adipose Tissue ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Polyunsaturated Fatty Acids ◽  
Acid Composition ◽  
Subcutaneous Fat ◽  
Intramuscular Fat ◽  
Longissimus Dorsi ◽  
Intramuscular Adipose Tissue

The aim of this study was to provide information on the fatty acid profile of different adipose depots - subcutaneous (upper and inner backfat layers) and intramuscular (m. Longissimus dorsi) in East Balkan pigs. The animals were reared in free-range conditions and slaughtered at an average live weight of 107?1.65kg. The results of the study showed that the various adipose tissues in pigs have different lipid metabolism and hence differ in their fatty acid composition. Intramuscular fat had significantly higher content of the saturated C16:0 and C18:0 (P<0.001), as well as the C16:1 (P<0.001) than the subcutaneous fat. In regards to the content of the polyunsaturated fatty acids, the latter displayed considerably higher content of both C18:2 and C18:3 (P<0.001) in comparison to the intramuscular fat in m. Longissimus dorsi. The differences between the subcutaneous and intramuscular adipose tissue in the individual fatty acids determined the similar trend of change in the total content of saturated and polyunsaturated fatty acids. Significant differences between the backfat layers were detected for C16:1, C18:0 and C18:3 (P<0.001). Stearic acid (C18:0) displayed higher content of the inner, while both C16:1 and C18:3 had higher proportion in the outer backfat layer in the East Balkan pigs. Except for C20:2, the long chain polyunsaturated n-6 and n-3 fatty acids had significantly higher proportions in the intramuscular fat, however no differences were determined between the two backfat layers.

scholarly journals cholesterol content and fatty acid composition of most consumed turkish hard and soft cheeses

2011 ◽  
Vol 23 (No. 4) ◽  
pp. 166-172 ◽  
Author(s):  
O. Kinik ◽  
O. Gursoy ◽  
A.K. Seckin
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Cholesterol Content ◽  
Oleic Acid Content ◽  
Soft Cheese ◽  
The Mean

Cholesterol content and fatty acid composition of 29 different most popular hard (Tulum, Teneke Tulum, aged Kashar, and fresh Kashar cheeses) and soft cheese (White Pickled cheeses) samples from the markets ofIzmirinTurkeywere determined by gas chromatography. Cholesterol content of hard and soft cheeses ranged from 46.47 to 138.99 mg/100&nbsp;g fat. Relative to the mean cholesterol values, the highest cholesterol content was found in fresh Kashar cheese. The fatty acid composition is quite similar in all samples. As concerns the saturated fatty acids, the most abundant in the cheeses investigated were palmitic (C16:0), stearic (C18:0), and myristic acids (C14:0). Palmitic acid levels were found to be the highest of the saturated fatty acid in all samples. Oleic acid content (5.93&ndash;29.38 mg/100 g fatty acids) in all cheeses was considerable higher than those of other unsaturated fatty acids. No specific trend or correlation between cholesterol and individual fatty acids was observed. &nbsp;

Quality Characteristics of Fresh Meat from Pigs of the Gascon Breed

2004 ◽  
Vol 10 (1) ◽  
pp. 29-34 ◽  
Author(s):  
P. Sans ◽  
M. J. Andrade ◽  
S. Ventanas ◽  
J. Ruiz
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Neutral Lipids ◽  
Biceps Femoris ◽  
Monounsaturated Fatty Acids ◽  
Intramuscular Fat ◽  
Polar Lipids ◽  
Neutral And Polar Lipids

Chemical parameters involved in technological meat quality for dry cured processing of Gascon pigs were studied in longissimus dorsi (LD) and biceps femoris (BF) muscles. Muscles from Gascon pigs showed 2.60 and 2.84% of intramuscular fat content, 23.64 and 22.14% protein content and 1.34 and 4.63mg of myoglobin per gram of muscle (respectively LD and BF). Intramuscular fat (IMF) and myoglobin levels were higher than those reported for commercial pigs, but lower than those previously found in Iberian pigs. A similar situation was detected in the fatty acid composition of neutral and polar lipids of both muscles. Thus, monounsaturated fatty acids (MUFA) in neutral lipids of Gascon pig muscles (LD and BF respectively) were 58.27 and 51.98%, while polyunsaturated fatty acids (PUFA) levels were 5.61 and 14.13% respectively; values similar to those found in Iberian pigs and quite different to usual values in commercial pig breeds. The same trend was found in polar lipids. Both muscles showed a low susceptibility to induced lipid oxidation, in agreement with their fatty acid composition. These results pointed out that meat from pigs of the Gascon breed showed optimal characteristics for dry cured processing.

scholarly journals Changes of the fatty acid composition of sprouts during germination

2010 ◽  
pp. 89-92
Author(s):  
Melinda-Rita Márton ◽  
Sándor Szép ◽  
Zsolt Mándoki ◽  
Melinda Tamás ◽  
Salamon Rozália Veronika ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Stearic Acid ◽  
Palmitic Acid ◽  
Acid Composition ◽  
Sunflower Seed ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Fat Content

During our research we studied the fat content and fatty acid composition during the germination and sprouting periods of the most important sprouts: wheat, lentil, alfalfa, radish and sunflower seed. In this article we present our research results during this sprouting study. The concentration of the saturated fatty acids (palmitic acid, stearic acid) decreased, the concentration of the unsaturated fatty acids increased during germination, but the tendency was not so high than was published in the literature.

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