Maloney Margaret A, Meiers Susan T, White Jessica, Romano Michael A
Department of Biology, Western Illinois University, Macomb, IL 61455, USA.
J Appl Anim Welf Sci. 2006;9(2):111-27. doi: 10.1207/s15327604jaws0902_2.
This study tested 3 food enrichment items mentioned in a laboratory primate newsletter with 6 adult Eulemur macaco and 3 adult Lemur catta to examine whether the items would affect the behavior of the lemurs. The results suggest that Food Enrichment Item 3 (a wire box filled with whole grapes, apples, or both hidden in straw hung from a branch within the enclosure) caused a significant decrease in the incidence of resting and a significant increase in the incidences of playing and grooming, with no significant effect on the incidence of feeding or foraging. The lemurs' behavior appeared to be most affected by the food enrichment item that required the most manipulation, closely followed by an enrichment that required a moderate amount of manipulation. The order of the exposure to the food enrichment items and the day of the week appear to have an attenuation effect on these behaviors and did affect the incidence of 3 stereotypic behaviors exhibited by a male L. catta such that 3 behaviors declined in occurrence as the study progressed.
本研究用6只成年黑狐猴和3只成年环尾狐猴对一份实验室灵长类动物通讯中提到的3种食物丰富项目进行了测试，以检验这些项目是否会影响狐猴的行为。结果表明，食物丰富项目3（一个铁丝箱，里面装满了整串葡萄、苹果或两者，藏在围场内树枝上悬挂的稻草中）导致休息发生率显著降低，玩耍和梳理毛发的发生率显著增加，对进食或觅食发生率没有显著影响。狐猴的行为似乎受需要最多操作的食物丰富项目影响最大，其次是需要适度操作的丰富项目。接触食物丰富项目的顺序和星期几似乎对这些行为有减弱作用，并且确实影响了一只雄性环尾狐猴表现出的3种刻板行为的发生率，随着研究的进行，这3种行为的发生率下降。
