稻-鸭生态种养对鸭生产性能及肉品质的影响

选用21日龄金定公鸭132只,随机分为3个处理组,每组3个重复.试验1组为地上平养组,每重复20只鸭,饲喂配合日粮;试验2,3组为稻-鸭生态种养组,按12只/667 m~2投放,每重复12只鸭.第2组饲喂配合日粮,饲喂量为第1组的60%;第3组饲喂稻谷,饲喂量为第1组的60%.试验期42 d.结果表明:1)稻-鸭生态种养组与地上平养组比较,鸭末重、日增重下降(P<0.01),料重比降低(P<0.01),尤以稻-鸭生态种养补充配合饲料组最好.2)与地上平养组比较,稻-鸭生态种养组鸭屠宰率、半净膛率、全净膛率下降(P>0.05),肌肉中水、蛋白质含量没有明显变化(P>0.05),但是肌肉粗脂肪含量下降(P<0.05),胸肌的熟肉率提高,失水率降低(P>0.05),腿肌的熟肉率、失水率没有显著变化(P>0.05),胸肌的肉色评分极显著提高(P<0.01),腿肌的肉色评分有所提高(P>0.05),表明稻-鸭生态种养鸭的肉品质有一定的改善.

Effects of rice-duck ecological management technique on growth performance and meat quality of ducks

132 21-day-old male Jin-ding ducks were randomly divided into 3 groups with 3 replicates.Group 1 was fed with just feed on ground and 20 birds each replicate,Group 2 and group 3 fell into the category of rice-duck system groups,with each group having 3 replicates (667 m~2 as a unit) and each repetition 12 ducks.Group 2 was fed with complete feed while group 3 was fed with paddy,the diet weight of each group was 60% that of group 1.The experimental period lasted 42 days.The results were as follows:(1) Compared to that of the group fed on ground, the ADG of rice-duck system groups also decreased,but the F/G of rice-duck system groups was decreased (P<0.01) and the best group was rice-duck system group fed with complete feed (P<0.01).(2) Compared to that of the group fed on ground,the percentage of carcass yield,eviscerated yield with giblet and eviscerated yield of rice-duck system groups decreased (P>0.05);the moisture and crude protein of their muscle showed no change among groups(P>0.05);the fat of the ducks decreased (P<0.05);the percentage of cooked meat of their breast muscle increased ,the percentage of water loss of their breast muscle showed decreased (P>0.05);the percentage of cooked meat and water loss of their leg muscle showed no change (P>0.05);As for the mark of meat color,their muscle had significantly improved (P<0.01); while their leg muscle had slightly improved (P>0.05).It indicated that the meat quality of ducks fed with nee-duck system technique were improved.