Minimising weight loss in new broiler hatchlings through early feeding of simple sugars
M. M. Bhuiyan A , F. Gao B , S. H. Chee C and P. A. Iji A DA School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia.
B College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.
C AB Vista, 25 International Business Park, #03-01 German Centre, 609916, Singapore.
D Corresponding author. Email: piji@une.edu.au
Animal Production Science 51(11) 1002-1007 https://doi.org/10.1071/AN11055
Submitted: 21 April 2011 Accepted: 26 August 2011 Published: 21 October 2011
Abstract
Two experiments were conducted to assess the effect of delayed access to feed after hatch and the potential of two carbohydrate oligomers, trehalose and palatinose, as supplements for early feeding of broiler chickens. A total of 360 and 252 straight run broiler chicks were used in Experiments 1 and 2, respectively, with each involving six treatments and six replicates. The diets were commercial in nature and supplemented with palatinose or trehalose (at 10 or 20 g/kg). Chicks were allowed to access feed within 8 h of hatch or 36 h. In Experiment 2, the supplements were fed at 10 or 20 g/kg diet; the commercial diets was also fed immediately or delayed. One of the diets contains zinc-bacitracin at 50 ppm and fed within 8 h of hatch. Delayed access to feed and water was found to reduce starting weight at placement whereas early access to feed generally improved it. Supplementation with trehalose, in particular led to higher (P < 0.001) 21-day weights than in the other groups although feed conversion ratio was not improved. The benefits of early feeding was demonstrated and trehalose may have some potential as an early feed supplement but further studies are required into how it can be applied at economic levels to minimise production costs down.
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