Feed additive for improving carcass quality of meat poultry as well as preparation method and application of feed additive

The invention discloses a feed additive for improving carcass quality of meat poultry. The feed additive comprises the following components in percentage by mass: 30.0%-35% of magnesium threonine, 5.0%-8.0% of iron methionine, 17.0%-21.0% of iron threonine, 10.0%-14.0% of manganese hydroxymethionine, 0.3%-0.5% of chromium methionine, 9.0%-10.0% of selenium yeast, 9.0%-10.0% of manganese nicotinate and 10.0%-12.0% of a carrier. The feed additive can improve the carcass quality of meat poultry. The invention further discloses a preparation method and application of the feed additive, the feed additive is added into meat poultry feed according to the adding amount of 0.05%-0.1%, and the obtained product is safe, efficient, low in emission, environmentally friendly, low in cost and capable of being used for large-scale industrial production. 本发明公开了一种改善肉禽胴体品质的饲料添加剂，包括以下质量分数的各组分：苏氨酸镁30.0％～35％、蛋氨酸铁5.0％～8.0％、苏氨酸铁17.0％～21.0％、羟基蛋氨酸锰10.0％～14.0％、蛋氨酸铬0.3％～0.5％、酵母硒9.0％～10.0％、烟酸锰9.0％～10.0％和载体10.0％～12.0％。该饲料添加剂，能够改善肉禽胴体品质。本发