Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 533771
Title Diet preference tests for a wet versus dry feed, wheat structure and pellet size in broiler chickens
Author(s) Elling-Staats, M.L.; Loon, Jorik van; Raaijmakers, M.M.P.; Poel, A.F.B. van der; Kwakkel, R.P.
Event 21th European Symposium on Poultry Nutrition, Salou/Vila-Seca, 2017-05-08/2017-05-11
Department(s) Animal Nutrition
WIAS
Publication type Contribution in proceedings
Publication year 2017
Abstract Diet preferences of broiler chickens were studied during 3 different choice-fed periods (P1, P2, P3). In P1 (1 to 7 days), chickens received a crumble starter diet with 250g/kg ground wheat (GW) in two separate feed troughs with dry and wet feed (1:1 feed to water). During P2 (8 to 21 days), chickens received diets in four separate feed troughs with whole wheat (WW) and GW in a 4 mm pelleted diet, fed dry and wet. In P3 (22 to 34 days), chickens received WW and GW dry pellets of 4 and 6 mm diameter in 4 separate feed troughs. Ingredient compositions of all diets from day 8 to 34 were similar (350g/kg wheat). Consumption from each feed trough was measured daily over a 6h-period. In P1, a strong preference for wet feed was found of 90.7% of total air-dry feed intake (P<0.001). In P2, preferences over the 4 diets were WW wet (62.6%), GW wet (33.7%), WW dry (2.6%) and GW dry (1.1%). Separate statistical analyses were done for the 6 slowest growing pens (SGP) (64g/d) and the 6 fastest growing pens (FGP) (70g/d). A positive correlation between average daily gain (ADG) and WW wet consumption was found for SGP (r=0.88, P=0.022) and a negative correlation for FGP (r=-0.83, P=0.042). Moreover, the ADG of FGP correlated positively with dry WW intake (r=0.81, P=0.050). In P3, preferences over the 4 diets were WW 6mm (33.4%), WW 4mm (33.2%), GW 4mm (24.3%) and GW 6mm (9.1%). Only FGP showed a preference for 4mm pellets (60.2% P= 0.005). The ADG of FGP were negatively correlated with WW intake in general (r=-0.83, P=0.039); no significant correlations were found for SGP. It is clear that chickens strongly prefer wet over dry diets and a high intake of a wet diet in combination with WW seems to benefit the slowest growing chickens. WW is preferred over GW, however a somewhat higher GW versus WW intake seems to benefit the faster growing chickens. The preference for 4 over 6 mm pellets seems to depend on growth rate and diet structure.
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