Evaluation of Pelleting Mealworm (Tenebrio Molitor) Powder with Chokeberry By-product Meal To improve Duck Production and Meat Quality Traits

ABSTRACT This study aimed to evaluate the effects of dietary supplementation pelleted Tenebrio molitor (TM) powder with chokeberry by-product (CBP) meal on duck production and meat quality traits. A total of 180 0-day-old Pekin ducks were allocated randomly between three dietary groups viz., control, Treatment 1, and Treatment 2, with three pens per group and twenty birds per pen, characterized by increasing levels of pelleted TM powder with CBP meal in concentration of 0%, 1.5%, and 3%, respectively, and reared until 42 days of age in a completely randomized design. On day 42, the ducks were sacrificed, and breast and thigh muscles were used for meat quality evaluations. Feeding pelleted TM powder with CBP meal resulted in a significant difference in final body weight, weight gain and feed conversion ratio (p<0.05). Additionally, a significant difference was observed in the pH of the breast meat samples (p<0.05). As the only significant difference between the breast and thigh meat, 1,1-diphenyl-2-picryhydrazyl radical scavenging was influenced significantly by the dietary inclusion of pelleted TM powder with CBP meal (p<0.05). However, the values of thiobarbituric acid reactive substances and meat color in both breast and thigh meat were insignificant (p>0.05) different among all groups. To conclude, the inclusion of up to 3 % of pelleted TM powder with CBP meal in the diets of ducks did improve the growth production and antioxidant characteristics effects, which could decrease TBARS and reflected by changes in 1,1-diphenyl-2- picrylhydrazyl free DPPH radical scavenging values.

摘要 本研究旨在评估日粮中添加复配苦莓副产物粕（chokeberry by-product meal, CBP）的制粒黄粉虫（Tenebrio molitor, TM）粉对北京鸭生产性能及肉品质性状的影响。试验选取180只1日龄北京鸭，采用完全随机设计将其随机分为3个日粮组，即对照组、处理1组与处理2组，每组设3个重复栏，每栏饲养20只鸭；3组日粮分别添加浓度为0%、1.5%、3%的制粒TM粉复配CBP粕，试验周期为42天。试验第42天对所有试验鸭进行屠宰，采集胸肌与腿肌样本用于肉品质指标测定。结果表明，饲喂含CBP粕的制粒TM粉日粮可显著影响试验鸭的终末体重、增重及饲料转化率（p<0.05）。此外，胸肌样本的pH值亦存在显著组间差异（p<0.05）。作为胸肌与腿肌间唯一存在显著差异的指标，日粮添加制粒TM粉复配CBP粕可显著影响1,1-二苯基-2-苦基肼基（1,1-diphenyl-2-picrylhydrazyl, DPPH）自由基清除率（p<0.05）。但各组间胸肌与腿肌的硫代巴比妥酸反应物（thiobarbituric acid reactive substances, TBARS）含量及肉色指标均无显著组间差异（p>0.05）。综上，在鸭日粮中添加最高3%的制粒TM粉复配CBP粕，可有效改善鸭的生长生产性能与抗氧化特性，能够降低TBARS含量，该效果可通过DPPH自由基清除率的变化得以体现。