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Registro Completo |
Biblioteca(s): |
Embrapa Pantanal. |
Data corrente: |
04/07/1996 |
Data da última atualização: |
04/07/1996 |
Autoria: |
HOLECHECK, J. L.; VAVRA, M.; ARTHUN, D. |
Título: |
Relationships between performance, intake, diet nutritive quality and fecal nutritive quality of cattle on mountain range. |
Ano de publicação: |
1982 |
Fonte/Imprenta: |
Journal of Range Management, v.35, n.6, p.741-744, Nov. 1982. |
Idioma: |
Inglês |
Conteúdo: |
Correlations were developed between average daily gain (ADG), forage organic matter intake (INT), fistula sample in vitro organic matter digestibility (DID), fistula sample nitrogen (DN), fecal sample in vitro digestibility (FID), and fecal sample nitrogen (FN) of cattle on forest and grassland range in northeastern Oregon. FN and FID were more closely associated with ADG and INT than DN or DID. Linear regression equations were developed between fistula and fecal samples for both N (r2 = .83) and ID (r2 = .71). The inclusion of FN as an independent variable with FID improved the equation for predicting fistula sample (ID (R2 = .83). Forage intakecould not be well prediction from either FN or FID in either simple or multiple regression equations. The closer relationship between fecal sample nutritive quality and ADG compared to fistula sample nutritive quality and ADG is attributed to greater sampling precision for fecal nutritive quality. Fecal N and ID appear to be closely associate with DN and DID when grasses comprise most of the ruminant diet but this relationship may not hold when the diet is dominated by forbs and shrubs. Nutritive evaluation of feces shows potential for monitoring trends in ruminant diet quality and performance but much more research is needed before these procedures can be applied. |
Palavras-Chave: |
Desempenho; Diet nutritive qaulity; Fecal; Intake. |
Thesagro: |
Dieta; Gado; Nutrição; Performance; Qualidade. |
Thesaurus Nal: |
cattle. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02048naa a2200265 a 4500 001 1789267 005 1996-07-04 008 1982 bl --- 0-- u #d 100 1 $aHOLECHECK, J. L. 245 $aRelationships between performance, intake, diet nutritive quality and fecal nutritive quality of cattle on mountain range. 260 $c1982 520 $aCorrelations were developed between average daily gain (ADG), forage organic matter intake (INT), fistula sample in vitro organic matter digestibility (DID), fistula sample nitrogen (DN), fecal sample in vitro digestibility (FID), and fecal sample nitrogen (FN) of cattle on forest and grassland range in northeastern Oregon. FN and FID were more closely associated with ADG and INT than DN or DID. Linear regression equations were developed between fistula and fecal samples for both N (r2 = .83) and ID (r2 = .71). The inclusion of FN as an independent variable with FID improved the equation for predicting fistula sample (ID (R2 = .83). Forage intakecould not be well prediction from either FN or FID in either simple or multiple regression equations. The closer relationship between fecal sample nutritive quality and ADG compared to fistula sample nutritive quality and ADG is attributed to greater sampling precision for fecal nutritive quality. Fecal N and ID appear to be closely associate with DN and DID when grasses comprise most of the ruminant diet but this relationship may not hold when the diet is dominated by forbs and shrubs. Nutritive evaluation of feces shows potential for monitoring trends in ruminant diet quality and performance but much more research is needed before these procedures can be applied. 650 $acattle 650 $aDieta 650 $aGado 650 $aNutrição 650 $aPerformance 650 $aQualidade 653 $aDesempenho 653 $aDiet nutritive qaulity 653 $aFecal 653 $aIntake 700 1 $aVAVRA, M. 700 1 $aARTHUN, D. 773 $tJournal of Range Management$gv.35, n.6, p.741-744, Nov. 1982.
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Embrapa Pantanal (CPAP) |
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Registros recuperados : 7 | |
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Registros recuperados : 7 | |
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