African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6576

Full Length Research Paper

The effects of different levels of poultry fat with vitamin E on performance and carcass traits of broilers

Ali Nobakht
Department of Animal Science, Islamic Azad University- Maragheh Branch, Iran.
Email: [email protected]

  •  Accepted: 31 October 2011
  •  Published: 05 March 2012

Abstract

The aim of this experiment was to investigate the effects of different levels of poultry fat with vitamin E on performance and carcass traits of broilers. This study was conducted as 4 × 2 factorial experiment with 4 levels of poultry fat (0, 2, 4 and 6%) and 2 levels of vitamin E (0 and 150 mg/kg) in 8 treatments, 3 replicates and 12 birds in each replicate in a completely randomized design. In this experiment 288 day old broiler chicks (Ross 308 strain) were used for 42 days. Inclusion poultry fat until 6% did not have any adverse effect on performance and carcass traits, whereas using 150 mg/kg vitamin E significantly affected the performance and carcass traits of broilers (P < 0.05). The lowest amounts of daily weight gain (40.22 g) and feed intake (81.89 g), the lowest percent of carcass (69%) were resulted in treatments contained 150 mg/kg of vitamin E. As interactive effects; the lowest amount of daily weight gain (39.11 g) and the lowest carcass percent (68.01%) were obtained by adding 2% of poultry fat and 150 mg/kg vitamin E. It is concluded that in broilers, dietary supplementation of poultry fat until 6% without having any adverse effects on their performance and carcass percent is possible, whereas inclusion 150 mg/kg vitamin E has adverse effects in these respects.

 

Keywords: Broiler, carcass traits, performance, poultry fat, vitamin.