Spencer S A, Vinter J, Hull D
Pediatr Res. 1985 Jan;19(1):127-30. doi: 10.1203/00006450-198501000-00033.
Newborn rabbits were overfed by encouraging them to suckle from two lactating does. Rabbits fed in this way (double fed) were compared with littermate controls (single fed) at age 7, 14, and 21 days. The double-fed rabbits gained weight more rapidly and at each age contained a higher percentage of fat than their single-fed counterparts. During the 1st wk the double fed rabbits stored some of their extra fat in the cervical and interscapular adipose lobes. Double-fed rabbits utilized their feeds more efficiently than single fed rabbits in that they gained more weight per unit milk intake and their gross energetic efficiency was 10-20% higher. In a second series of experiments oxygen consumption rate was measured in single- and double-fed rabbits at ages 7, 14, 21, and 28 days. The relation between oxygen consumption and body weight were similar. We conclude that rabbits respond to over-feeding with an increased rate of weight gain associated with extra fat deposition, and this is associated with increased energy efficiency.
通过鼓励新生兔从两只正在泌乳的母兔那里吸吮乳汁，使其过度进食。将以这种方式喂养（双份喂养）的兔子与同窝对照兔（单份喂养）在7日龄、14日龄和21日龄时进行比较。双份喂养的兔子体重增加更快，且在每个年龄段，其体内脂肪百分比均高于单份喂养的同窝兔。在第一周期间，双份喂养的兔子将其多余的脂肪储存于颈部和肩胛间脂肪叶中。双份喂养的兔子比单份喂养的兔子更有效地利用饲料，因为它们每摄入单位牛奶所增加的体重更多，且其总能量效率高10%-20%。在第二组实验中，测量了7日龄、14日龄、21日龄和28日龄单份喂养和双份喂养兔子的耗氧率。耗氧量与体重之间的关系相似。我们得出结论，兔子对过度喂养的反应是体重增加速率加快，并伴有额外的脂肪沉积，而这与能量效率提高有关。
