Effect of toasting time on the utilization of soyabean in broiler feeds

  • OS George
  • DN Onunkwo
  • KO Ogbamba
Keywords: The effects of various toasting time on the utilization of dietary full-fat soyabean as source of protein was studied, using 180 unsexed day-old Gabro broiler chicks. Bird were fed a control diet or diets in which full fat soyabean toasted for 0, 5, 10, 15 a

Abstract

The effects of various toasting time on the utilization of dietary full-fat soyabean as source of protein was studied, using 180 unsexed day-old Gabro broiler chicks. Bird were fed a control diet or diets in which full fat soyabean toasted for 0,5,10,15 and 20 minutes was added at 30% inclusion level during 4 weeks of feeding. Inclusion of full fat soyabean irrespective of toasting time caused a decrease in feed intake relative to the control diet (p<0.05). Birds fed the control diet retained the highest levels of body weight gain, feed intake and feed/gain ratio, which was comparable to those of birds fed diet with full-fat soyabean toasted for 15 minutes but higher than those of birds fed diets with full-fat soyabean toasted for 0,5,10 or 20 minutes (p<0.05). The current study showed that full-fat soyabean toasted for 15 minutes will remove the trypsin inhibitors, thus enhancing growth and performance of broiler birds.

Keywords: Toasting time, full-fat soyabean, broiler, feed

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eISSN: 0794-4721