乙酸镁对氟烷基因杂合子育肥猪肌肉加工品质的影响

育肥猪屠宰前饲粮中短期添加乙酸镁,研究其对氟烷基因杂合子育肥猪肌肉加工品质的影响。选用体重相近的氟烷基因杂合子(HalNHaln)大长猪(大白猪×长白猪)36头随机分为2组,即对照组、乙酸镁组,每组18头。乙酸镁组在屠宰前5 d,基础日粮中添加镁1 500mg/kg(以乙酸镁形式),对照组饲喂基础日粮。试验表明:在猪屠宰前饲粮中短期添加1 500 mg/kg水平的镁对试验猪的平均日采食量没有明显影响(P>0.05);可以显著降低肌肉的滴水损失(P<0.05),提高猪肉的熟肉率,从而提高猪肉的加工品质。

Effects of dietary Mg (Ac) 2 supplement on the process quality of pork in HalN Haln pigs

Thirty-six HalNHaln pigs(Y×L) with similar initial live weight were employed to study the enhancing effects of short term dietary addition of Mg prior to slaughter on meat quality.The 36 pigs were allotted to 2 groups: Magnesium acetate group and control group.The diet of Magnesium acetate group was added to 1 500 g/kg Mg in form of Magnesium acetate.The results showed: 1)The dietary addition of Mg had no significantly effects on ADFI of pigs of Magnesium acetate group(P<0.05);2)Short term addition of 1 500 mg/kg Mg prior to lower the muscle dropping lose.At the same time,Mg addition could enhance the rate of cooked muscle(P<0.05).