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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
23/09/1997 |
Data da última atualização: |
08/09/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
LEITE, E. R.; STUTH, J. W. |
Afiliação: |
ENEAS REIS LEITE, CNPC; Texas A&M University, College Station, USA. |
Título: |
Fecal NIRS equations to assess diet quality of free-ranging goats. |
Ano de publicação: |
1995 |
Fonte/Imprenta: |
Small Ruminant Research, v. 15, n. 3, p. 223-230, 1995. |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Research was conducted to evaluate the predictability of the nutritional status of free-ranging goats through analysis of fecal materrial by near infrared reflectance spectroscopy (NIRS). Diet samples were collected from esophageally fistulated goats, whereas fecal samples were obtained from nonfistulated animals grazing the study areas. Percentage of crude protein (CP) and standard corrected in vitro digestible organic matter (DOM) were determined for diet samples. The resulting diet reference data and the fecal spectra were used to develop predictive equations. Standard errors of calibration (SEC) for CP and DOM were 1.12 and 2.02, being within acceptable limits for NIRS. Coeficients of determination (R2), were 0.94 and 0.93 for CP and DOM, respectively. Validation trials, performed in post oak woodlands and subtropical thornsrub regions of Texas, indicated that the selected CP and DOM equations can be useful in predicting the nutritional status of goats under different rangeland conditions. |
Palavras-Chave: |
Equação fecal; Fecal equation; Infrared spectrophotometry; NIRS; Nutrition precision; Status nutricional. |
Thesagro: |
Caprino; Dieta; Nutrição animal; Qualidade. |
Thesaurus Nal: |
Animal nutrition; Diet; Goats; Nutritional status; Ruminant nutrition. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 01841naa a2200313 a 4500 001 1514764 005 2021-09-08 008 1995 bl uuuu u00u1 u #d 100 1 $aLEITE, E. R. 245 $aFecal NIRS equations to assess diet quality of free-ranging goats. 260 $c1995 520 $aAbstract: Research was conducted to evaluate the predictability of the nutritional status of free-ranging goats through analysis of fecal materrial by near infrared reflectance spectroscopy (NIRS). Diet samples were collected from esophageally fistulated goats, whereas fecal samples were obtained from nonfistulated animals grazing the study areas. Percentage of crude protein (CP) and standard corrected in vitro digestible organic matter (DOM) were determined for diet samples. The resulting diet reference data and the fecal spectra were used to develop predictive equations. Standard errors of calibration (SEC) for CP and DOM were 1.12 and 2.02, being within acceptable limits for NIRS. Coeficients of determination (R2), were 0.94 and 0.93 for CP and DOM, respectively. Validation trials, performed in post oak woodlands and subtropical thornsrub regions of Texas, indicated that the selected CP and DOM equations can be useful in predicting the nutritional status of goats under different rangeland conditions. 650 $aAnimal nutrition 650 $aDiet 650 $aGoats 650 $aNutritional status 650 $aRuminant nutrition 650 $aCaprino 650 $aDieta 650 $aNutrição animal 650 $aQualidade 653 $aEquação fecal 653 $aFecal equation 653 $aInfrared spectrophotometry 653 $aNIRS 653 $aNutrition precision 653 $aStatus nutricional 700 1 $aSTUTH, J. W. 773 $tSmall Ruminant Research$gv. 15, n. 3, p. 223-230, 1995.
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7. | | SOUZA NETO, J. de; CONNER, J. R.; STUTH, J. W.; HAMILTON, W. T.; RICHARDSON, J. W. Management strategies and climate impact change on rangelands. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 33, n. 9, p. 1533-41, set. 1998. Título em português: Impacto de mudanças de estratégias de manejo e do clima em pastagem nativa.Biblioteca(s): Embrapa Unidades Centrais. |
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