Wickramasuriya S S, Yoo J, Kim J C, Heo J M
Division of Animal and Dairy Science, Chungnam National University, Daejeon 305-764, Republic of Korea.
Pork Innovation, Department of Agriculture and Food, South Perth, WA 6151, Australia.
Poult Sci. 2016 Jan;95(1):77-83. doi: 10.3382/ps/pev321. Epub 2015 Nov 2.
A study was conducted to determine the apparent metabolizable energy (AME) requirement of Korean native ducklings for hatch to 21 d of age. A total of 336 one-day-old male Korean native ducklings were used in a completely randomized design having 8 dietary treatments to provide a range of AME content from 2,600 to 3,300 kcal/kg (i.e., 100 kcal/kg disparity). Eight experimental diets containing varying levels of AME were formulated to meet the NRC (1994) nutrient specifications. Ducklings were randomly allocated to 48 pens (6 replicates per treatment and 7 ducklings per pen) and were offered their respective diets on an ad libitum basis for the period of study. Body weight and feed intake were measured weekly to calculate feed conversion ratio, energy intake, and protein intake. Two ducklings per pen (n = 6) were euthanized via cervical dislocation to weigh empty body and drumsticks at the conclusion of the experiment. Data were fitted to both linear-plateau and quadratic-plateau models for estimation of the AME requirements for Korean native ducklings for hatch to 21 d of age. The estimated AME requirements were 2,953, 3,007, and 2,950 kcal AME/kg diet for maximum daily gain, daily feed intake, and for minimum feed conversion ratio, respectively.
开展了一项研究，以确定韩国本土雏鸭从孵化到21日龄期间的表观代谢能（AME）需求。总共336只1日龄韩国本土雄性雏鸭被用于完全随机设计，有8种日粮处理，以提供2600至3300千卡/千克的一系列AME含量（即相差100千卡/千克）。配制了8种含有不同水平AME的实验日粮，以满足NRC（1994）的营养规格。雏鸭被随机分配到48个栏中（每个处理6个重复，每个栏7只雏鸭），并在研究期间随意采食各自的日粮。每周测量体重和采食量，以计算饲料转化率、能量摄入量和蛋白质摄入量。在实验结束时，每个栏中挑选2只雏鸭（n = 6）通过颈椎脱臼法安乐死，以称量空腹体重和腿肉重量。数据拟合线性-平台模型和二次-平台模型，以估计韩国本土雏鸭从孵化到21日龄期间的AME需求。对于最大日增重、每日采食量和最低饲料转化率，估计的AME需求分别为2953、3007和2950千卡AME/千克日粮。
