Influence of socially involved hand-raising on life history and stress responses in greylag geese
Influence of socially involved hand-raising on life history and stress responses in greylag geese
复制标题
DOI：
10.1075/is.11.3.03hem
复制
发表时间：
2010-01-01
影响因子：
1.5
通讯作者：
Kotrschal, Kurt
中科院分区：
文献类型：
--
作者：
Hemetsberger, Josef;Scheiber, Isabella B. R.;Kotrschal, Kurt
动物在各种环境下人工饲养，包括实验研究。这经常被批评为生产具有非典型行为的动物。在这里，我们比较生活史的330手提出的和631鹅提出的灰雁从自由飞行的羊群，以确定是否手提高影响生活史，生殖变量和行为。我们发现，在生活史（如男性年龄，配对债券的年龄）或生殖变量（如蛋数，蛋重，孵化和羽化的年轻人的数量）的手提出的鹅和鹅提出的差异不大。然而，手提出的女性有较低的预期寿命比鹅提出的，主要是由于捕食在繁殖过程中。手工饲养的鹅强调社会，处理和捕食者的压力显着减少，受到攻击的同种和不太警惕比鹅养鹅。我们的结论是，手提高导致鹅物种典型的生活史，但减少了压力反应。这使得人工饲养的鹅成为研究的合作伙伴，但在暴露于捕食者时也更容易受到伤害。
Animals are hand-raised in a variety of contexts, including experimental research. This has been criticized frequently as producing animals with species-untypical behaviour. Here we compare life histories of 330 hand-raised and 631 goose-raised Greylag geese from a free-flying flock to determine whether hand-raising affected life history, reproductive variables and behaviour. We found little differences in life histories (e.g. male age, age at pair bond) or reproductive variables (e.g. number of eggs, egg weight, number of young hatched and fledged) of hand-raised and goose-raised geese. However, hand-raised females had lower life expectancies than goose-raised ones, mainly due to predation during breeding. Hand-raised geese were stressed significantly less during social, handling and predator stress, were attacked less by conspecifics and were less vigilant than goose-raised geese. We conclude that hand-raising resulted in geese with species-typical life histories but reduced stress responses. This makes hand-raised geese cooperative partners for research, but also more vulnerable when exposed to predators.