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Title: The influence of odour, taste and nutrients on feeding behaviour and food preferences in horses
Contributor(s): Van Den Berg, Mariette  (author); Giagos, Vasileios (author); Lee, Caroline  (author); Brown, Wendy  (author)orcid ; Cawdell-Smith, A J (author); Hinch, Geoffrey  (author)orcid 
Publication Date: 2016
Open Access: No
DOI: 10.1016/j.applanim.2016.08.015
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Abstract: While it has been established that nutrients and flavours (odour, taste) play an important role in diet selection by horses, previous studies have not always clarified what type of flavouring (e.g. non-nutritive or nutritive) was used. Therefore, the objective of this study was to determine the influence of distinct food characteristics (odour, taste, nutrients) on the preference of horses using different preference testing protocols. This experiment consisted of three phases; adaptation (Pl), two-choice testing (P2) and multiple-choice testing using a chequerboard design (P3). Four pelleted diets equal in digestible energy, but contrasted in crude protein (IP; 14% and HP; 27%) and added non-caloric (natural) sweetener (i.e. LP,LP+, HP, HP+) were consecutively fed to each of sixteen adult horses. The diets were paired with four non-nutritive odours (coconut, banana, cinnamon, spearmint), with a unique odour and diet combination allocated to each group of four horses. In P1, each diet was presented solely for five days to facilitate pre- and post-ingestive associations: in P2 a two-choice test was conducted with four diet combinations (contrasts) over three days; and in P3 the four diets were presented simultaneously in a checkerboard fashion over a 5-day period. Feed intake, bucket/zone visits and time spent foraging or moving were recorded. The key findings of this study were: (1) In Pl an initially large variation in intake was recorded with only some horses showing a neophobic response to a new odour/food, but variation declined within 2 days with the majority of the horses consuming over 9~ of the diets. (2) Nutrient (HP) content appeared to be the main driver for diet intake in P2 (P< 0.05) and P3 (P
Publication Type: Journal Article
Source of Publication: Applied Animal Behaviour Science, v.184, p. 41-50
Publisher: Elsevier BV
Place of Publication: Amsterdam, The Netherlands
ISSN: 0168-1591
Field of Research (FOR): 070204 Animal Nutrition
070203 Animal Management
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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