Abstract

RUBIO VARELA, Juliana Alejandra; DIAZ VARGAS, Mayra  and  DUQUE RAMIREZ, Carlos Felipe. Digestibility of diets with dehydrated citrus pulp for fattening rabbits. Rev. investig. vet. Perú [online]. 2023, vol.34, n.1, e22962.  Epub Feb 27, 2023. ISSN 1609-9117.  http://dx.doi.org/10.15381/rivep.v34i1.22962.

The aim of this study was to evaluate the nutritional composition and in vitro digestibility in rabbits of a pelleted feed using citrus pulp as a substitute for a conventional feed. It was used 24 adult rabbits (>80 days) distributed in four treatments (0, 10, 20 and 30%) with six repetitions. The experimental period was 12 days (7 for the adaptation period and 5 for the faeces collection). The orange pulp presented 7.4% crude protein (CP), 14.9% crude fibre (CF), 3.8% ether extract, 5.1% mineral matter, 4308 kcal/kg of gross energy and 385.76 mg of polyphenols per 100 g of citrus pulp. CP levels decreased as the inclusion level of citrus pulp increased (16.77 to 17.85%), while the dry matter digestibility percentage increased with higher pulp inclusion levels. It is concluded that up to 30% of citrus pulp can be included in rabbit feed as a substitute for commercial concentrate without affecting nutrient digestibility.

Keywords : antioxidants; coefficients; flavonoids; fiber; energy; orange.

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