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Anim Biosci > Accepted Articles
DOI: https://doi.org/10.5713/ab.20.0592    [Accepted] Published online December 13, 2020.
Performance and meat quality of lambs fed detoxified castor meal
Hellenn Cardoso Oliveira1  , Rasmo Garcia1  , Vitor Visintin Silva de Almeida2  , Aline Cardoso Oliveira2  , Aureliano José Vieira Pires3  , Ueslei Leonardo Cardoso Oliveira4  , Andreia Santos Cezario5  , Dorgival Morais de Lima Júnior2,* 
1Department of Animal Science, Federal University of Viçosa, Av. Peter Henry Rolfs, Viçosa - MG, 36570-900, Brazil
2Campus Arapiraca, Federal University of Alagoas, Av. Manoel Severino Barbosa, Bom Sucesso Arapiraca – AL, 57309-005, Brazil
3Department of Animal Science, State University of Southeast Bahia, BR 415, Itapetinga - BA, 45700-000, Brazil
4Department of Environment and Agrarian Science, Universidade Estadual de Santa Cruz, BR 415 (Ilhéus/Itabuna) km16. Ilhéus – BA, 45.662-900, Brazil
5Campus Morrinhos, Federal Institute of Goiano, BR 153, km633, Morrinhos - GO, 75650-000, Brazil
Correspondence:  Dorgival Morais de Lima Júnior, Tel: (082)33165466, Fax: (082)88334034, Email: dorgival.junior@arapiraca.ufal.br
Received: 24 August 2020   • Revised: 8 October 2020   • Accepted: 24 August 2020
Abstract
Objective
The objective of this experiment was to evaluate the performance and meat quality of lambs fed diets containing four levels of substitution (0, 33, 67, and 100 %) of soybean meal for detoxified castor meal (CM).
Methods
Twenty-four sheep (18.5 ± 2.71 kg initial body weight) were distributed in a completely randomized design with four treatments and six replicates.
Results
The intakes of dry matter (DM), crude protein (CP) and metabolizable energy were not affected (p > 0.05) by the CM levels. The neutral detergent fiber (NDF) intake increased linearly (p < 0.05) and the non-fiber carbohydrates intake (NFC) had a linear decrease (p < 0.05). Final body weight and average daily gain had a decreasing linear effect (p < 0.05) with the inclusion of the CM levels in the diet. Effects of the inclusion of CM were not observed (p > 0.05) on the percentage of total lipids of the lamb meat, but the inclusion of CM in the concentrate had a positive quadratic (p < 0.05) the oleic acid (C18:01n9) in lipids of the lamb meat. Conclusions: Inclusion of detoxified castor meal in the concentrate impairs the productive performance, however it contributed to increase monounsaturated fatty acids content in the meat of lambs. Replacing up to 33% soybean meal with detoxified castor meal is recommended.
Keywords: Biodiesel By-product; Lamb Performance; Ricinus communis; Sheep; Sugarcane Silage


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