Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/34060
Title: Predições da espectroscopia no infravermelho próximo podem determinar a digestibilidade e o consumo alimentar de cordeiros confinados
Other Titles: Near-IR spectroscopy predictions can determine the digestibility and feed intake from feedlot lambs
Keywords: Espectroscopia de reflectância do infravermelho proximal
Lambs - Digestibility
Consumo alimentar
Near infrared reflectance spectroscopy
Cordeiros - Digestibilidade
Food consumption
Issue Date: Mar-2018
Publisher: Universidade Federal de Minas Gerais, Escola de Veterinária
Citation: ALMEIDA, M. T. C. et al. Predições da espectroscopia no infravermelho próximo podem determinar a digestibilidade e o consumo alimentar de cordeiros confinados. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte, v. 70, n. 2, p. 597-605, Mar./Apr. 2018.
Abstract: This research was carried out to validate the effectiveness of the Near-IR spectroscopy method in predicting intake and digestibility of DM and nutrients of diets for feedlot lambs, in order to compare with the conventional laboratory method. Samples of diets, ort,s and feces of forty Santa Ines lambs were subjected to both methods and analyzed for DM, MM, NDF, ADF, CP, and EE for future calculations for intake and digestibility. Most of the model's correlation coefficient was in the range of 0.66 to 0.81, being suitable for quantitative prediction. Highest values for CP content of 0.85 (diets) and 0.87 (orts) were observed. There were high correlations between the methods to predicting intake (average values of 0.93) and digestibility (average values of 0.93). Correlations between the variables obtained by the prediction of NIRS and the conventional method were adequate, showing that regardless of the method, the nutritional content of diets, orts and feces can be used to calculate the intake and digestibility of DM and nutrients of lambs’ diets. The Near-IR spectroscopy method is recommended for accuracy, speed and low cost compared to conventional method.
URI: http://repositorio.ufla.br/jspui/handle/1/34060
Appears in Collections:DZO - Artigos publicados em periódicos



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