Calling by domestic piglets: reliable signals of need?

@article{Weary1995CallingBD,
  title={Calling by domestic piglets: reliable signals of need?},
  author={D. Weary and D. Fraser},
  journal={Animal Behaviour},
  year={1995},
  volume={50},
  pages={1047-1055}
}
Abstract Two manipulations were performed on domestic piglets to determine whether differences in calling during periods of separation from the mother can indicate differences in need. In both cases, the aim was to manipulate the piglet's need for the sow's attention. In the first manipulation a ‘thriving’ piglet (i.e. the piglet with the heaviest weight and most rapid weight gain) and a ‘non-thriving’ one (lightest and slowest weight gain) were selected from each of 15 litters. The two piglets… Expand
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