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Area of Science:

  • Animal Science
  • Nutritional Science
  • Agricultural By-products

Background:

  • Agricultural by-products offer potential for sustainable animal feed.
  • Orange by-products are a readily available resource from citrus processing.
  • Evaluating their nutritional value for livestock is crucial for waste valorization.

Purpose of the Study:

  • To assess the impact of dehydrated orange by-product on rabbit growth performance.
  • To determine effects on carcass yield and meat quality in fattening rabbits.
  • To establish optimal inclusion levels of orange by-product in rabbit diets.

Main Methods:

  • Four diets with 0%, 10%, 20%, and 30% dehydrated orange by-product were fed to rabbits.
  • Rabbits (32 days old) were housed in groups of two, with six replicates per treatment.
  • Growth performance, carcass yield, and meat quality parameters were measured from 32 to 70 days of age.

Main Results:

  • A 20% substitution level significantly improved weight gain and feed conversion ratio (p < 0.05).
  • No adverse effects on carcass yield or meat quality were observed at any inclusion level.
  • The 30% inclusion level showed no significant differences in evaluated parameters (p > 0.05).

Conclusions:

  • Dehydrated orange by-product can substitute up to 30% of commercial feed concentrate for rabbits.
  • Inclusion levels up to 30% do not compromise rabbit performance, carcass yield, or meat quality.
  • This finding supports the use of orange by-products as a sustainable feed ingredient in rabbit production.