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. 2024 Jan 28:23:100337.
doi: 10.1016/j.vas.2024.100337. eCollection 2024 Mar.

Improved muscle fatty acid composition and oxidative stability in lambs grazing on sainfoin pasture

Zijian Li  1 , Chao Peng  1 , Hucheng Wang  1 , Xianbai Liu  2
Affiliations

Improved muscle fatty acid composition and oxidative stability in lambs grazing on sainfoin pasture

Zijian Li et al. Vet Anim Sci. .

Abstract

As a mode of animal management, grazing on pasture has the potential to improve animal performance and provide healthy meat. However, there is little information about the effects of lamb meat quality grazed on sainfoin pasture. Therefore, the present study was conducted to compare the fatty acid composition and oxidative stability of growing lambs. The twenty-four lambs were randomly divided into grazing on sainfoin pasture (GS) or feeding indoors pelleted total mixed ration (FI). The results show that GS had the higher polyunsaturated fatty acids (PUFA), especially n-3 PUFA (P = 0.002), and beneficial for nutritional index of fatty acid. Corresponding that GS had lower the Thiobarbituric acid reactive substance (TBARS) in raw (P = 0.005) and cooked meat (P = 0.008). The GS had higher total phenols (P = 0.021), ferric reducing antioxidant power (FRAP) (P = 0.048) and α-Tocopherol of meat (P = 0.004). In conclusion, grazing on sainfoin pasture in lambs can improve muscle fatty acid composition and oxidative stability than feeding indoors.

Keywords: Antioxidant capacity; Fatty acids composition; Grazing; Lipid oxidation; Meat quality.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Fig 1
Fig. 1
Interactive effect of the time of storage (days 0, 3 and 6) and management mode on lipid oxidation (TBARS values) measured in raw meat slices stored aerobically at 4 °C. Mean values and standard error bars are presented. a,b,c,d Different superscript letters indicate differences (P ≤ 0.05) between values tested using the Tukey's adjustment for multiple comparisons. GS: Grazing on sainfoin pasture; FI: Feeding indoors pelleted total mixed ration. TBARS: Thiobarbituric acid reactive substance.
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