The ontogeny of resource allocation in giant transgenic rat growth hormone mice

Dry mass budgets were conducted on transgenic metallothionein-1 rat growth hormone mice and normal Mus musculus to assess ontogenic changes in growth, feeding, and resource allocation. Younger mice had higher rates and efficiencies of growth than older mice. Young transgenic mice and normal controls were relatively similar for most features but became progressively dissimilar with time. The rate of growth of transgenics was never faster than …