Energetics and litter size variation in domestic dog Canis familiaris breeds of two sizes.

  title={Energetics and litter size variation in domestic dog Canis familiaris breeds of two sizes.},
  author={Michael Scantlebury and Richard E Butterwick and J R. Speakman},
  journal={Comparative biochemistry and physiology. Part A, Molecular & integrative physiology},
  volume={129 4},
We measured resting metabolic rate (RMR), daily energy expenditure (DEE) and metabolisable energy intake (MEI) in two breeds of dog during peak lactation to test whether litter size differences were a likely consequence of allometric variation in energetics. RMR of Labrador retrievers (30 kg, n=12) and miniature Schnauzers (6 kg, n=4) averaged 3437 and 1062 kJ/day, respectively. DEE of Labradors (n=6) and Schnauzers (n=4) averaged 9808 and 2619 kJ/day, respectively. MEI of Labradors (n=12) was… CONTINUE READING


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