Relative effectiveness of herbal methionine compared to DLmethionine on growth, performance and carcass responses basis in broiler chickens

Authors

  • Hossein Moravej Associate Professor of poultry nutritionDepartment of Animal Sciences, Faculty of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
  • Mahmood Shivazad Department of Animal Sciences, Faculty of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
  • Majid Alahyari-Shahrasb Department of Animal Sciences, Faculty of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
  • Sheila Hadinia Department of Animal Sciences, Faculty of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
Abstract:

BACKGROUND: The degree to which the amount of aningested nutrient is absorbed and available to the body is calledbioavailability. OBJECTIVES: Relative effectiveness of herbalmethionine (H-Met®) compared to DL-methionine (DL-Met)was investigated in this experiment. METHODS: Exponentialregression analysis was used to determine bioefficacy of H-Met®based on body weight gain, feed intake and feed conversion. DLMetand H-Met® were added to a basal diet in 3 and 4 levels,respectively, in starter, grower and finisher periods. Therefore,that met the nutrient and energy requirements of broiler chickens,with the exception of Met+Cys. RESULTS: In the 42-d trial,broilers growth increased significantly (p

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Journal title

volume 7  issue 2

pages  95- 101

publication date 2013-07-01

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