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Food quality affects diet preference of rabbits: experimental evidence

机译:食品质量影响兔子的饮食偏好:实验证据

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When foraging, small mammalian herbivores do not show a preference for the forage with the highest biomass, which can be explained by several hypotheses (e.g. antipredator considerations, more difficult handling of tall swards and/or the higher nutritional quality of shorter grasses). We tested the ability of rabbits to discriminate between plants of different nutritional value and whether they prefer the most nutritious. A feeding trial in which rabbits (Oryctolagus cuniculus (Linnaeus, 1758)) were offered two different types of grasses (fertilised and unfertilised) was executed under experimental conditions. The rabbits preferred the grasses with the highest protein percentage, when conditions were controlled for sward height/plant biomass. This observation is equivalent to results obtained in geese and provides experimental evidence about the capability of rabbits to select for plants with the highest nutritional quality.
机译:觅食时,小型哺乳动物草食动物不喜欢生物量最高的牧草,这可以通过几种假设来解释(例如,对捕食者的考虑,对高草的处理更加困难和/或较短草的营养质量更高)。我们测试了兔子区分具有不同营养价值的植物以及它们是否更喜欢营养的能力。在实验条件下进行了一项饲喂试验,在试验中给兔子(穴兔(Oryctolagus cuniculus)(Linnaeus,1758))提供两种不同类型的草(受精和未受精)。当控制草皮高度/植物生物量的条件时,兔子偏爱蛋白质百分比最高的草。该观察结果等同于在鹅中获得的结果,并提供了有关兔子选择具有最高营养品质的植物的能力的实验证据。

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