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. 2012 Mar 1;108(10):1800–1809. doi: 10.1017/S0007114512000128

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Copyright © The Authors 2012. The online version of this article is published within an Open Access environment subject to the conditions of the Creative Commons Attribution-NonCommercial-ShareAlike licence < http://creativecommons.org/licenses/by-nc-sa/2.5/>. The written permission of Cambridge University Press must be obtained for commercial re-use.

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Fig. 1 — Actual vitamin A intake of puppies from 8 to 52 weeks of age. Values are means, with 95 % CI represented by vertical bars. Mean values were significantly different between the groups (P < 0·05). Group A (), 5·24 μmol retinol (5000 IU vitamin A)/4184 kJ (1000 kcal) metabolisable energy (ME); group B (), 13·10 μmol retinol (12 500 IU vitamin A)/4184 kJ (1000 kcal) ME; group C (), 78·60 μmol retinol (75 000 IU vitamin A)/4184 kJ (1000 kcal) ME; group D (), 104·80 μmol retinol (100 000 IU vitamin A)/4184 kJ (1000 kcal) ME.

Inline graphic — Actual vitamin A intake of puppies from 8 to 52 weeks of age. Values are means, with 95 % CI represented by vertical bars. Mean values were significantly different between the groups (P < 0·05). Group A (), 5·24 μmol retinol (5000 IU vitamin A)/4184 kJ (1000 kcal) metabolisable energy (ME); group B (), 13·10 μmol retinol (12 500 IU vitamin A)/4184 kJ (1000 kcal) ME; group C (), 78·60 μmol retinol (75 000 IU vitamin A)/4184 kJ (1000 kcal) ME; group D (), 104·80 μmol retinol (100 000 IU vitamin A)/4184 kJ (1000 kcal) ME.