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An exploratory analysis of the suitability of diets fed to a flightless insectivore, the North Island brown kiwi ( Apteryx mantelli ), in New Zealand
Author(s) -
Potter Murray A.,
Hendriks Wouter H.,
Lentle Roger G.,
Thomas Donald V.,
Minson Charlotte J.,
Pindur Nicola B.
Publication year - 2009
Publication title -
zoo biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.5
H-Index - 54
eISSN - 1098-2361
pISSN - 0733-3188
DOI - 10.1002/zoo.20283
Subject(s) - kiwi , biology , nutrient , dry matter , food science , zoology , ecology
The ingredients and the macro‐ and micro‐nutrient contents of diets that are fed to captive kiwi at seven New Zealand holding facilities were subject to analysis. The nutrient compositions were compared across facilities and with an estimate of the nutrient composition of the diets of wild kiwi based on the intake of various dietary ingredients reported in the literature. A total of 20 ingredients were used, the number and proportion of these ingredients varied greatly between facilities. Six of the diets were based primarily on meat and three comprised a mixture of meat and cat biscuits. Just one included a proprietary insectivore mix. Nutrient content varied greatly between the seven diets, organic matter ranging from 91.8 to 95.6%, crude protein from 41.9 to 62.9%, and crude fat from 9.0 to 28.7% of dry matter content. Large variations were found in the total content and profile of amino acids and of fatty acids of the diets. The nutrient content of all seven diets differed from that of the natural diet of wild kiwi. Hence, the presence of nutrient deficiencies in the current formulations cannot be excluded. Zoo Biol 29:537–550, 2010. © 2009 Wiley‐Liss, Inc.