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Registro Completo |
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
04/02/1997 |
Data da última atualização: |
04/02/1997 |
Autoria: |
MORAES, E. A. de. |
Título: |
Cattle diets from yearlong and rotational grazing at two stocking densities on the Texas Experimental Ranch. |
Ano de publicação: |
1985 |
Fonte/Imprenta: |
[Texas]: Texas A & M University, 1985. |
Páginas: |
84p. |
Idioma: |
Inglês |
Notas: |
Tese Doutorado. |
Conteúdo: |
Flve paddocks of a heavily stocked (3.3 AUM/ha) rotatlonal grazing (RG) system at two stocking densitles, two paddocks simulated 14 (RG-14) and three paddocks simulated 42 (RG-42) paddocks per herd, and a moderately stocked (2.02 AUM/ha) continuously grazed (MC) paddock were studied at the Texas Experimental Ranch to evaluate their effects on diet selection. The dietary percentages were determined for major plant specles, classes, and plant parts. In vitro digestibility of organic matter (IVOMD), crude protein (CP), and organic matter (OM) were also determined. Precipitation was 14% below the 22-year average and irregularly distributed through the 2-year period from 1982 to 1984. Texas wintergrass (Stipa leucotricha Trin. Rupr.), sideoats grama (Boutelouacurtipendula Michx. Torr.), and other warm-season grasses were the major dietary components. The percentage of cool-season grass and warm-season grass did not differ significantly (P<0.05) under RG and MC, but there were more forbs in diets from MC than RG, during last five trials. Cows on RG selected silghtly more sideoats grama than on MC. Grasses accounted for 92% of diets in both RG-14 and RG-42, and 89% in MC. Cattle on RG shifted from cool-season grasses to warm-season grasses earller in the spring than those on MC. The variation in diet selection between paddocks within stocking densitlys on RG was greater than the difference between stocking densitles. Seasonal variation was the ,major factor affecting botanical and chemical composition of diet.... MenosFlve paddocks of a heavily stocked (3.3 AUM/ha) rotatlonal grazing (RG) system at two stocking densitles, two paddocks simulated 14 (RG-14) and three paddocks simulated 42 (RG-42) paddocks per herd, and a moderately stocked (2.02 AUM/ha) continuously grazed (MC) paddock were studied at the Texas Experimental Ranch to evaluate their effects on diet selection. The dietary percentages were determined for major plant specles, classes, and plant parts. In vitro digestibility of organic matter (IVOMD), crude protein (CP), and organic matter (OM) were also determined. Precipitation was 14% below the 22-year average and irregularly distributed through the 2-year period from 1982 to 1984. Texas wintergrass (Stipa leucotricha Trin. Rupr.), sideoats grama (Boutelouacurtipendula Michx. Torr.), and other warm-season grasses were the major dietary components. The percentage of cool-season grass and warm-season grass did not differ significantly (P<0.05) under RG and MC, but there were more forbs in diets from MC than RG, during last five trials. Cows on RG selected silghtly more sideoats grama than on MC. Grasses accounted for 92% of diets in both RG-14 and RG-42, and 89% in MC. Cattle on RG shifted from cool-season grasses to warm-season grasses earller in the spring than those on MC. The variation in diet selection between paddocks within stocking densitlys on RG was greater than the difference between stocking densitles. Seasonal variation was the ,major factor affecting botanical and ... Mostrar Tudo |
Palavras-Chave: |
Cottle; Estados Unidos; Feeding systems; Grazing systems; Pastejo rotacional; Sistema; Stocking density; USA. |
Thesagro: |
Bovino; Dieta; Gado; Pastagem; Pastejo Continuo; Taxa de Lotação. |
Thesaurus Nal: |
diet; overgrazing; rotational grazing; Texas. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02431nam a2200349 a 4500 001 1556679 005 1997-02-04 008 1985 bl uuuu m 00u1 u #d 100 1 $aMORAES, E. A. de 245 $aCattle diets from yearlong and rotational grazing at two stocking densities on the Texas Experimental Ranch. 260 $a[Texas]: Texas A & M University$c1985 300 $a84p. 500 $aTese Doutorado. 520 $aFlve paddocks of a heavily stocked (3.3 AUM/ha) rotatlonal grazing (RG) system at two stocking densitles, two paddocks simulated 14 (RG-14) and three paddocks simulated 42 (RG-42) paddocks per herd, and a moderately stocked (2.02 AUM/ha) continuously grazed (MC) paddock were studied at the Texas Experimental Ranch to evaluate their effects on diet selection. The dietary percentages were determined for major plant specles, classes, and plant parts. In vitro digestibility of organic matter (IVOMD), crude protein (CP), and organic matter (OM) were also determined. Precipitation was 14% below the 22-year average and irregularly distributed through the 2-year period from 1982 to 1984. Texas wintergrass (Stipa leucotricha Trin. Rupr.), sideoats grama (Boutelouacurtipendula Michx. Torr.), and other warm-season grasses were the major dietary components. The percentage of cool-season grass and warm-season grass did not differ significantly (P<0.05) under RG and MC, but there were more forbs in diets from MC than RG, during last five trials. Cows on RG selected silghtly more sideoats grama than on MC. Grasses accounted for 92% of diets in both RG-14 and RG-42, and 89% in MC. Cattle on RG shifted from cool-season grasses to warm-season grasses earller in the spring than those on MC. The variation in diet selection between paddocks within stocking densitlys on RG was greater than the difference between stocking densitles. Seasonal variation was the ,major factor affecting botanical and chemical composition of diet.... 650 $adiet 650 $aovergrazing 650 $arotational grazing 650 $aTexas 650 $aBovino 650 $aDieta 650 $aGado 650 $aPastagem 650 $aPastejo Continuo 650 $aTaxa de Lotação 653 $aCottle 653 $aEstados Unidos 653 $aFeeding systems 653 $aGrazing systems 653 $aPastejo rotacional 653 $aSistema 653 $aStocking density 653 $aUSA
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Registros recuperados : 110 | |
8. | | DEL PELOSO, M. J.; MORAES, E. A.; DUTRA, L. G. Efeito do parcelamento da adubação nitrogenada em cobertura na cultura do feijoeiro de inverno com irrigação por aspersão, e em várzea, no Estado de Goiás. In: REUNIÃO SOBRE FEIJAO IRRIGADO (GO, DF, MG, ES, SP, RJ), 1., 1988, Goiânia. Anais. Goiânia: EMBRAPA-CNPAF, 1990. p. 94-95. (EMBRAPA-CNPAF. Documentos, 27).Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Arroz e Feijão. |
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9. | | SOUZA, W. L.; MORAES, E. A.; OLIVEIRA, R. P. de. Colesterol carregado pela ciclodextrina sobre a criopreservação dos espermatozoides de garanhões da raça Nordestina. Pesquisa Veterinária Brasileira, Brasília, DF, v. 38, n. 5, p. 991-996, maio, 2018.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Semiárido; Embrapa Unidades Centrais. |
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10. | | DUTRA, L. G.; DEL PELOSO, M. J.; MORAES, E. A. Uso do gesso agrícola para feijoeiro irrigado no Estado de Goiás. In: REUNIÃO SOBRE FEIJAO IRRIGADO (GO, DF, MG, ES, SP, RJ), 1., 1988, Goiânia. Anais. Goiânia: EMBRAPA-CNPAF, 1990. p. 98-100. (EMBRAPA-CNPAF. Documentos, 27).Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Arroz e Feijão. |
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12. | | MORAES, E. A. de; OLIVEIRA, J. E. de; MATTOSO, L. H. C.; MARTINS, M. A. Avaliação da liberação da rodamina-B em borracha natural. In: JORNADA CIENTÍFICA - EMBRAPA SÃO CARLOS, 4., 2012, São Carlos, SP. Anais... São Carlos: Embrapa Instrumentação: Embrapa Pecuária Sudeste, 2012. p. 67. Editores técnicos: João de Mendonça Naime, Lucimara Aparecida Forato, Maria Alice Martins, Ladislau Marcelino Rabello, Rubens Bernardes Filho. (Embrapa Instrumentação. Documentos, 56).Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Instrumentação. |
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Registros recuperados : 110 | |
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