title: Liquid residue of cassava as a replacement for corn in the diets of sheep.
abstract: The effect of the replacement of corn with the liquid residue of cassava was evaluated at levels of 0, 25, 50, 75, and 100% in the diets of sheep on the intake and nutrient digestibility, weight gain, and carcass characteristics. Forty non-castrated crossbred Santa Ines sheep at 4 months of age and an initial body weight of 19.5 ± 2.5 kg were slaughtered after 90 days at the feedlot. A quadratic effect was found for intake of dry matter (DM), organic matter (OM), non-fiber carbohydrates (NFC), and digestible OM, with estimated values of 1130, 1080, 558, and 777 g/day at 11.2, 11.9, 30.8, and 2.18% of replacing corn with liquid residue of cassava, respectively. However, the intake of crude protein (CP) and neutral detergent fiber (NDF) decreased linearly around 105 to 45.3 g CP/day and 413 to 284 g NDF/day. The same effect was found for digestibility of DM (715 to 649 g/kg), OM (725 to 669 g/kg), CP (801 to 759 g/kg), and NDF (486 to 379 g/kg), which decreased linearly as the dietary liquid residue of cassava increased. The maximum average daily gain (174 g/day) was estimated with a 22.4% replacement level. Liquid residue of cassava can replace up to 25% of the corn in the diets of sheep, since it was possible to obtain a gain above 100 g/day, which is considered to be satisfactory.
authors.affiliation: Department of Animal Science, Universidade Federal Rural de Pernambuco, Dom Manoel de Medeiros Street, s/n, Dois Irmãos, Recife, 52171-900, PE, Brazil.
authors.forename: Hilson Barretto
authors.initials: HB
authors.lastname: dos Santos Filho
authors.forename: Robson Magno Liberal
authors.initials: RM
authors.lastname: Véras
authors.forename: Marcelo de Andrade
authors.initials: Mde A
authors.lastname: Ferreira
authors.forename: Janaina de Lima
authors.initials: Jde L
authors.lastname: Silva
authors.forename: Gustavo Araújo
authors.initials: GA
authors.lastname: de Vasconcelos
authors.forename: Luciana Felizardo Pereira
authors.initials: LF
authors.lastname: Soares
authors.forename: Daniel Barros
authors.initials: DB
authors.lastname: Cardoso
mesh_terms: D000821:Animal Feed / Q000032:analysis*; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D004032:Diet / Q000662:veterinary*; D004043:Dietary Fiber / Q000378:metabolism; D004063:Digestion; D005247:Feeding Behavior; D002365:Manihot; D012756:Sheep / Q000502:physiology*; D015430:Weight Gain; D003313:Zea mays