Digestive constraints on an aquatic carnivore: effects of feeding frequency and prey composition on harbor seals

@article{Trumble2003DigestiveCO,
  title={Digestive constraints on an aquatic carnivore: effects of feeding frequency and prey composition on harbor seals},
  author={Stephen J. Trumble and Perry S Barboza and Michael A. Castellini},
  journal={Journal of Comparative Physiology B},
  year={2003},
  volume={173},
  pages={501-509}
}
We hypothesized that increased feeding frequency in captive harbor seals would increase nutrient loads and thus reduce retention time and the digestive efficiency of natural prey. We measured daily feed intake and excretion during 6 feeding trials and fed herring (49% lipid), pollock (22% lipid) or an equal mix of each diet over 24 months. Animals were accustomed to feeding at either high or low frequency. Body mass and intake did not vary with season. Although mean retention times were similar… CONTINUE READING

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