Laska M
Department of Medical Psychology, University of Munich Medical School, Goethestr. 31, D-80336 Munich, Germany.
Physiol Behav. 2001 May;73(1-2):111-20. doi: 10.1016/s0031-9384(01)00439-5.
I assessed the occurrence of food preferences in captive squirrel monkeys and pigtail macaques and analyzed whether their preferences correlate with nutrient composition. Using a two-alternative choice test, I repeatedly presented six Saimiri sciureus and six Macaca nemestrina with all possible binary combinations of 12 types of food that are part of their diet in captivity. The two species exhibited significantly different rank orders of preference. Correlational analyses revealed that the preference ranking of the squirrel monkeys was significantly positively correlated with total energy content, irrespective of the source of energy as neither total carbohydrate content nor protein or lipid content was significantly correlated with food preference. In contrast, the preference ranking of the pigtail macaques showed a significant positive correlation with total carbohydrate content and with fructose content but not with total energy content of the food items. These results suggest that squirrel monkeys are opportunistic feeders with regard to maximizing net gain of energy, whereas pigtail macaques are not but rather seek to meet their requirements of metabolic energy by preferring foods that are high in carbohydrates.
我评估了圈养松鼠猴和豚尾猕猴食物偏好的发生情况，并分析了它们的偏好是否与营养成分相关。通过双选测试，我向6只松鼠猴和6只豚尾猕猴反复呈现了它们圈养饮食中12种食物的所有可能二元组合。这两个物种表现出显著不同的偏好等级顺序。相关性分析表明，松鼠猴的偏好等级与总能量含量显著正相关，无论能量来源如何，因为总碳水化合物含量、蛋白质或脂质含量与食物偏好均无显著相关性。相比之下，豚尾猕猴的偏好等级与总碳水化合物含量和果糖含量显著正相关，但与食物的总能量含量无关。这些结果表明，在使能量净收益最大化方面，松鼠猴是机会主义觅食者，而豚尾猕猴则不然，它们通过偏好高碳水化合物食物来满足其代谢能量需求。
