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Economical and financial analysis of lamb finishing fed with diets formulated according to the NRC (1985) and the NRC (2007)

Rogério, Marcos Cláudio Pinheiro ; de Castro, Eliane Minervina ; Martins, Espedito Cezário ; Monteiro, Jomar Patrício ; de Moraes Silva, Kleibe ; Cândido, Magno José Duarte ; Gomes, Tereza Cristina Lacerda ; Bloc, Antoine Francis Roux ; de Vasconcelos, Ângela Maria ; Leite, Eneas Reis ; Costa, Hélio Henrique Araújo

Tropical animal health and production, 2012-12, Vol.45 (1), p.259-266 [Periódico revisado por pares]

Dordrecht: Springer Netherlands

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Título:
Economical and financial analysis of lamb finishing fed with diets formulated according to the NRC (1985) and the NRC (2007)
Autor: Rogério, Marcos Cláudio Pinheiro ; de Castro, Eliane Minervina ; Martins, Espedito Cezário ; Monteiro, Jomar Patrício ; de Moraes Silva, Kleibe ; Cândido, Magno José Duarte ; Gomes, Tereza Cristina Lacerda ; Bloc, Antoine Francis Roux ; de Vasconcelos, Ângela Maria ; Leite, Eneas Reis ; Costa, Hélio Henrique Araújo
Assuntos: Animal Feed - standards ; Animal Husbandry - economics ; Animal Nutritional Physiological Phenomena - physiology ; Animals ; Biomedical and Life Sciences ; Bixaceae ; Brazil ; Breeding - methods ; Calcium Carbonate ; Carotenoids ; Dietary Proteins - analysis ; Food, Formulated - standards ; Glycine max ; Life Sciences ; Male ; Models, Economic ; National Academy of Sciences, U.S ; Nuclear polyhedrosis virus ; Original Research ; Plant Extracts ; Sheep - physiology ; Silage ; United States ; Veterinary Medicine/Veterinary Science ; Zea mays ; Zoology
É parte de: Tropical animal health and production, 2012-12, Vol.45 (1), p.259-266
Notas: ObjectType-Article-2
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Descrição: This study compares both versions of the nutritional requirement system determined by the National Research Council (NRC) version 1985 (NRC85) and NRC version 2007 (NRC07), for finishing lambs in feedlots. Nineteen crossbred lambs were divided in four groups representing four experimental treatments: one diet according to NRC85 and three diets according to NRC07. The diets recommended by NRC07 considers crude protein intake relative to ruminal undegradable protein at 20, 40, and 60 % levels (NRC07/20, NRC07/40, and NRC07/60). Diets were composed of Brazilian semi-arid native grass silage, soybean meal, corn, annatto byproduct, and limestone. Purchases and sales of lambs were done according to average market prices in Brazil. The economic indicators considered pointed that all treatments were viable but NRC07/20 and NRC07/60 were more profitable with similar net present values (NPVs) and internal return rates (IRRs). NRC07/20 was the best option showing an IRR of 17.20 % and a payback period (PP) of 5.07 considering a fixed annual interest rate of 6 %. Sensitivity analysis considering a 10 % raise in variable costs showed negative NPVs, IRRs inferior to the opportunity cost rates adopted and PPs that exceeded the planning horizon of 7 years for both NRC85 and NRC07/40.
Editor: Dordrecht: Springer Netherlands
Idioma: Inglês

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Economical and financial analysis of lamb finishing fed with diets formulated according to the NRC (1985) and the NRC (2007)

Dordrecht: Springer Netherlands

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