The effect of dietary CLA supplementation on meat and eating quality, and the histochemical profile of the m. longissimus dorsi from stress susceptible fatteners slaughtered at heavier weights

Migdał, Władysław; Pasciak, P.; Wojtysiak, Dorota; Barowicz, T.; Pieszka, M.; Pietras, M.

doi:10.1016/j.meatsci.2003.08.008

Cited by 28 publications

(16 citation statements)

References 32 publications

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“…There were also no significant effects (P>0.05) of dietary CLA on the content of crude protein, ether extract and ash in the Longissimus dorsi muscle, but the dietary supplementation of CLA increased (P<0.05) dry matter content in L. dorsi muscle. Similar results are found by Migdal et al (2004) where a significant increase in dry matter content in meat occurred in pigs fed 2% CLA.…”

Section: Resultssupporting

confidence: 88%

Effects of conjugated linoleic acid supplementation on growth, carcass characteristics and fatty acid profiles of muscle and fat in growing-finishing pigs

Han¹,

Feng²,

Yu³

et al. 2011

J. Anim. Feed Sci.

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This study investigated the effects of dietary supplementation of conjugated linoleic acid (CLA) on the growth performance, carcass characteristics, muscle quality and fatty acid compositions in the skeletal muscle and backfat of growing-finishing pigs from 39.5 to 108.0 kg. Forty-eight pigs were randomly allotted to four diets containing 0 (control), 0.5, 1.0 or 1.5% of CLA mixture (35.2% cis-9, trans-11 and 37.5% trans-10, cis-12) for 12 weeks. The results showed that dietary CLA supplementation did not affect the animal's growth performance and carcass characteristics, whereas significantly increased dry matter content of the Longissimus dorsi muscle (P<0.05). The CLA supplementation also increased the content of saturated fatty acids, but decreased (P<0.05) the content of unsaturated fatty acids (UFA) in both the backfat and Longissimus dorsi muscle. The CLA concentrations in the Longissimus dorsi muscle and backfat were increased linearly by the CLA supplementation in a dose-dependent manner. However, CLA cis-9, trans-11 and CLA trans-10, cis-12 showed different deposition efficiencies in pigs.

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Section: Resultssupporting

confidence: 88%

Effects of conjugated linoleic acid supplementation on growth, carcass characteristics and fatty acid profiles of muscle and fat in growing-finishing pigs

Han¹,

Feng²,

Yu³

et al. 2011

J. Anim. Feed Sci.

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show abstract

“…In the present study, the CLA preparation increased the level of saturated acids, mainly C 18:0. These results concur with earlier studies that found a positive effect of CLA on the saturation of fatty acids in pig lipids (Migdał et al, 2004). The dietary CLA supplement was found to increase the level of n-3 UFA and to reduce the level of n-6 acids (Smith et al, 2002).…”

Section: Discussionsupporting

confidence: 92%

The effect of dietary conjugated linoleic acid on the levels of lipids, cholesterol and iodothyronines in the blood of pigs

Sechman¹,

Pieszka²,

Rzasa³

et al. 2007

J. Anim. Feed Sci.

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The aim of the investigation was to study the effect of dietary conjugated linoleic acid (CLA) on the concentrations of lipids, fatty acids and iodothyronines: thyroxine (T 4 ), triiodothyronine (T 3 ), reverse-triiodothyronine (rT 3 ), free T 4 (FT 4 ) and free T 3 (FT 3 ) in blood plasma of pigs. The experiment was carried out on 50 fatteners (average liveweight 50 kg) divided into 5 groups (5 gilts and 5 barrows per group). The pigs were fed a basal diet supplemented with 0, 0.5, 1, 1.5 and 2% of CLA isomers. Blood samples were collected from fatteners weighing 105 kg. Supplementation of the diet with CLA did not significantly affect lipid parameters in blood plasma. In comparison with gilts, a significantly higher concentration of triglycerides in barrows was found. In CLA-fed pigs, significant changes in the plasma fatty acid profile were noticed. The higher doses of CLA caused a significant increase in CLA and saturated fatty acids (SFA) with a concomitant decrease in monounsaturated (MUFA) and polyunsaturated (PUFA) fatty acids in blood plasma. Moreover, dietary CLA decreased the ∆9 desaturase index in a dose-dependent manner, probably as a result of Journal of Animal and Feed Sciences, 16, 2007, 193-204 8 Corresponding author: e-mail: rzsechma@cyf-kr.edu.pl DIETARY CLA ON LIPIDS AND IODOTHYRONINES IN PIGSthe inhibitory effect of CLA on stearoyl-CoA activity.Only the lowest dose of CLA (0.5%) increased T 4 and T 3 concentrations in blood plasma of fatteners by 64 and 27%, respectively. There were no significant changes in rT 3 , FT 4 and FT 3 in the plasma of CLA-treated pigs. The results obtained indicate that dietary CLA influenced the fatty acid profile in blood plasma of fatteners without affecting basic lipid parameters. The increase in T 4 and T 3 concentrations in the blood of CLAtreated pigs suggests that low doses of CLA may stimulate the function of the pituitary-thyroid axis and/or deiodinase activity. On the other hand, the absence of changes in FT 4 and FT 3 indicates that CLA treatment does not affect thyroid hormone homeostasis in blood.

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“…Recently, the influence of feed supplementation with 2% CLA (mixture of isomers) was investigated on the quality of pork and showed, among other things, a reduced ratio of n-6/n-3 PUFA [27]. On the other hand, the LA diet had the opposite effect by increasing the ratio of n-6/n-3 PUFA in all tissues, which is in agreement with work by Du et al [25].…”

Section: Discussionsupporting

confidence: 84%

Fatty acid profiles in tissues of mice fed conjugated linoleic acid

Gøttsche

Straarup

2006

Eur. J. Lipid Sci. Technol.

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The effect of dietary CLA supplementation on meat and eating quality, and the histochemical profile of the m. longissimus dorsi from stress susceptible fatteners slaughtered at heavier weights

Cited by 28 publications

References 32 publications

Effects of conjugated linoleic acid supplementation on growth, carcass characteristics and fatty acid profiles of muscle and fat in growing-finishing pigs

Effects of conjugated linoleic acid supplementation on growth, carcass characteristics and fatty acid profiles of muscle and fat in growing-finishing pigs

The effect of dietary conjugated linoleic acid on the levels of lipids, cholesterol and iodothyronines in the blood of pigs

Fatty acid profiles in tissues of mice fed conjugated linoleic acid

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