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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
23/09/1997 |
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Data da última atualização: |
08/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LEITE, E. R.; STUTH, J. W. |
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Afiliação: |
ENEAS REIS LEITE, CNPC; Texas A&M University, College Station, USA. |
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Título: |
Fecal NIRS equations to assess diet quality of free-ranging goats. |
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Ano de publicação: |
1995 |
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Fonte/Imprenta: |
Small Ruminant Research, v. 15, n. 3, p. 223-230, 1995. |
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Idioma: |
Inglês |
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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. |
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Palavras-Chave: |
Equação fecal; Fecal equation; Infrared spectrophotometry; NIRS; Nutrition precision; Status nutricional. |
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Thesagro: |
Caprino; Dieta; Nutrição animal; Qualidade. |
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Thesaurus Nal: |
Animal nutrition; Diet; Goats; Nutritional status; Ruminant nutrition. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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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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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
