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The use of orange waste with and without enzymes in broilers diets and its effect on their performance, carcass traits and some blood parameters

Author Affiliations

  • 1Regional Center for Food and Feed, Agriculture Research Centre, Giza, EGYPT
  • 2Regional Center for Food and Feed, Agriculture Research Centre, Giza, EGYPT
  • 3Animal Production Department, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, EGYPT

Res. J. Animal, Veterinary and Fishery Sci., Volume 2, Issue (12), Pages 14-19, December,24 (2014)

Abstract

Two hundreds and eighty eight (288) ROSS chicks (one day old) were used in the present experiment. The chicks were divided into eight groups. The first two groups were a negative control group fed a basal diet and positive control group fed a basal diet supplemented with enzyme. The six remaining groups were fed diets containing orange waste in partial replacement of yellow corn at the replacement levels 20, 40 and 60% with and without enzyme supplementation. Orange waste was subjected to different chemical analysis. A digestion trial was performed to determine the gross energy of orange waste. During the experiment, the feed consumption and chicken’s live body weight were recorded and the feed conversion ratio (feed/ gain) was then calculated. Blood plasma was analyzed for cholesterol and triglycerides. At the end of the 42 days of experiment the European Production Efficiency Factor (EPEF) was calculated. The results of broilers performance experiment showed that replacing the yellow corn with orange waste in broilers’ diet did not cause any significant (P<0.05) changes in the broilers’ performance at all replacement levels with and without enzyme addition except for the group fed 60% orange waste without enzyme which recorded significantly (P<0.05) lower numerical values of body weight, weight gain and feed intake and the worst feed conversion ratio compared to the other groups. The results of blood analysis showed that increasing the replacement level of orange waste in the diets had a positive effect causing a significant (P<0.05) decrease in the blood cholesterol and blood triglyceride levels of the chickens. The economic evaluation revealed that using enzyme or orange waste 20% plus enzyme increasing the European production efficiency factor (EPEF). The results of the study generally proved that the orange waste have promising application in broiler chickens’ feed without any detrimental effect.

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