›› 2013, Vol. 40 ›› Issue (12): 81-84.

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Effects of Dietary Energy and Protein Levels on Production Performance of Laying Ducks

WEI Li-min1, SUN Rui-ping1,2, LIN Zhe-min1, TAN Shu-yi1,2, HUANG Li-li1, WANG Feng3, ZHENG Xin-li3   

  1. 1. Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural Sciences, Haikou 571100, China;
    2. National Waterfowl System Haikou Test Station, Haikou 571100, China;
    3. Hainan Key Laboratory of Tropical Animal Reproduction, Breeding and Epidemic Disease Research, Haikou 571100, China
  • Received:2013-06-24 Online:2013-12-20 Published:2014-02-11

Abstract: The aim of the study was to investigate the effects of dietary energy and protein levels on production performance of laying ducks. The experiment was designed by 3×3 factorial arrangement with three energy levels (10.8, 11.3 and 11.8 MJ/kg ME) and three protein levels (17.0%, 19.0% and 21.0% P). A total of 432 sixteen-week-old Jinding laying ducks were randomly allocated into nine treatments, experiment one group (10.8 MJ/kg ME, 17.0% P), experiment two group (10.8 MJ/kg ME, 19.0% P), experiment three group (10.8 MJ/kg ME, 21.0% P), experiment four group (11.3 MJ/kg ME, 17.0% P), experiment five group (11.3 MJ/kg ME, 19.0% P), experiment six group (11.3 MJ/kg ME, 21.0% P), experiment seven group (11.8 MJ/kg ME, 17.0% P), experiment eight group (11.8 MJ/kg ME, 19.0% P) and experiment nine group (11.8 MJ/kg ME, 21.0% P), each treatment had four replicates of 12 ducks per replicate, and the experiment lasted for 90 days. The results showed that the average egg weight of laying ducks was significantly effected by the levels of dietary energy (P<0.05), and the feed intake and feed/egg weight were not significantly effected by the levels of dietary energy (P>0.05). The production performance was not significantly effected by the levels of dietary protein (P>0.05). In the adding level range of experiments, interactions of energy and protein didn't affect the production performance of laying ducks (P>0.05).It was suggested that 11.3 MJ/kg ME, and 17.0% P in dietary were suitable for Jinding laying ducks in Hainan.

Key words: laying ducks; energy; protein; production performance

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