Bai Xue, Li Fei, Li Fadi, Guo Long
State Key Laboratory of Grassland Agro-ecosystems, Lanzhou University, Lanzhou 730020, China; College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China.
State Key Laboratory of Grassland Agro-ecosystems, Lanzhou University, Lanzhou 730020, China; College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China.
Meat Sci. 2022 Dec;194:108961. doi: 10.1016/j.meatsci.2022.108961. Epub 2022 Aug 31.
Thirty-two male Hu lambs (32.31 ± 3.31 kg; 4-months-old) were randomly assigned to four treatments: (1) control (CON), (2) selenium-enriched yeast (SeY, 0.8 mg/kg), (3) selenized glucose (SeGlu, 0.8 mg/kg), and (4) sodium selenite (SS, 0.8 mg/kg) to evaluate their effects on Hu lamb production and slaughter performance, antioxidant capacity, hematological parameters, meat quality and shelf-life. The production and slaughter performances were not different (P > 0.05) among treatments. SeGlu and SeY increased (P < 0.05) the total antioxidant capacity in serum and muscle selenium content while decreasing (P < 0.05) the malondialdehyde (MDA) contents both in serum and muscle. SeGlu extended muscle shelf-life by 7.7 h compared with CON and decreased (P < 0.05) yellowness (b*) and lightness (L*) in meat stored for 24 h. In summary, the effects of SeGlu were similar to those of SeY and better than those of SS in improving serum and muscle antioxidant status, prolonging muscle shelf-life, and increasing selenium deposition in muscle.
32只雄性湖羊羔羊（体重32.31±3.31千克；4月龄）被随机分为四组进行处理：（1）对照组（CON），（2）富硒酵母组（SeY，0.8毫克/千克），（3）硒化葡萄糖组（SeGlu，0.8毫克/千克），以及（4）亚硒酸钠组（SS，0.8毫克/千克），以评估它们对湖羊羔羊生产性能、屠宰性能、抗氧化能力、血液学参数、肉质和货架期的影响。各处理组之间的生产性能和屠宰性能没有差异（P>0.05）。SeGlu和SeY提高了（P<0.05）血清总抗氧化能力和肌肉硒含量，同时降低了（P<0.05）血清和肌肉中的丙二醛（MDA）含量。与对照组相比，SeGlu使肌肉货架期延长了7.7小时，并降低了（P<0.05）储存24小时的肉的黄度（b*）和亮度（L*）。综上所述，在改善血清和肌肉抗氧化状态、延长肌肉货架期以及增加肌肉中硒沉积方面，SeGlu的效果与SeY相似且优于SS。
