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123. | | MADALENA, F. E.; TEODORO, R. L.; LEMOS, A. de M.; MONTEIRO, J. B. N.; BARBOSA, R. T. Evaluation of strategies for crossbreeding of dairy cattle in Brazil. Journal of Dairy Science, Champaign, v. 73, n.7, p.1887-1901, 1990. Biblioteca(s): Embrapa Gado de Leite. |
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124. | | BARBOSA, P. F.; CARNEIRO, J. da C.; SILVA, A. G. da; BARBOSA, R. T.; RODRIGUES, A. de A. Evaluation of breeding strategies in a crossbred dairy cattle herd raised on a medium input production system in Brazil. In: WORLD CONGRESS APPLIED TO LIVESCTOCK PRODUCTION, 7., 2002, Montpellier, France. Papers... Montpellier: INRA, 2002. Biblioteca(s): Embrapa Pecuária Sudeste. |
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125. | | BARBOSA, P. F.; COSTA, J. L. D.; SILVA, A. G. da; BARBOSA, R. T.; RODRIGUES, A. de A. Evaluation of breeding strategies in a crossbred dairy cattle herd raised on a medium-input production system in Brazil. In: WORLD CONGRESS APPLIED TO LIVESCTOCK PRODUCTION, 7., 2002, Montpellier, France. Abstracts... Montpellier: INRA, 2002. p.338. Biblioteca(s): Embrapa Pecuária Sudeste. |
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126. | | BARBOSA, R. T.; FONSECA, V. O.; BARBOSA, P. F.; ALENCAR, M. M. de; FARIA, E. P.; MEIRELLES, C. P. Níveis plasmáticos de testosterona em touros das raças Canchim e Nelore (Plasmatic levels of testosterone in Canchim and Nellore bulls). In: CONGRESSO BRASILEIRO DE REPRODUCAO ANIMAL, 9., 1991, Belo Horizonte. Anais... Belo Horizonte: CBRA, 1991. p.322. Biblioteca(s): Embrapa Pecuária Sudeste. |
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127. | | BERGAMASCHI, M. A. C. M.; VICENTE, W. R. R.; BARBOSA, R. T.; MARQUES, J. A.; FREITAS, A. R. de. Resultados de sincronização de estro em fêmeas da raça Nelore. In: CONGRESSO BRASILEIRO DE BUIATRIA, 4., 2001, Campo Grande, MS. Anais... Campo Grande: BICCA, 2001. p.41. Biblioteca(s): Embrapa Pecuária Sudeste. |
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128. | | MACHADO, R.; SILVA, J. C. B. da; BARBOSA, R. T.; BISINOTTO, R. S.; SIQUEIRA, A. E. P.; BINELLI, M. R. Remoção farmacológica ou mecânica do folículo dominante como estratégia antí-luteolítica em bovinos. Revista Acta Scientie Vetrinariae, v.34, n.(supl. 1), p. s334, 2006. Biblioteca(s): Embrapa Pecuária Sudeste. |
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132. | | BERGAMASCHI, M. A. C. M.; VICENTE, W.; BARBOSA, R. T.; MARQUES, J.; FREITAS, A. R. de; MACHADO, R. Effect of grazing system on fetal development in Nellore cattle. In: WORLD BUIATRICS CONGRESS, 2004, Québec. Proceedings...Québec: SMB, 2004. p.27. In: WORLD BUIATRICS CONGRESS, 2004, Québec. Proceedings... Québec: SMB, 2004. p.27. Biblioteca(s): Embrapa Pecuária Sudeste. |
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134. | | BERGAMASCHI, M. A. C. M.; VICENTE, W. R. R.; BARBOSA, R. T.; MARQUES, J. A.; FREITAS, A. R. de. Efeitos do sistema de pastejo no desenvolvimento fetal de bovinos da raça Nelore. In: CONGRESSO BRASILEIRO DE MEDICINA VETERINÁRIA; 28.; CONGRESSO INTERNACIONAL DE MEDICINA VETERINÁRIA EM LÍNGUA PORTUGUESA, 9.; CONGRESSO DO COLÉGIO BRASILEIRO DE AQUICULTURA, 2.; CONGRESSO BAIANO DE CLÍNICOS DE PEQUENOS ANIMAIS; CONGRESSO NORDESTINO DE BUIATRIA, 2001, Salvador, BA. Livro de resumos... Salvador: SBMV: SMVBA, 2001. REF-714. p.242. Biblioteca(s): Embrapa Pecuária Sudeste. |
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135. | | BERGAMASCHI, M. A. C. M.; VICENTE, W. R. R.; BARBOSA, R. T.; MARQUES, A. R.; FREITAS, A. R. de. Efeitos do sistema de pastejo no desenvolvimento fetal de bovinos da raça nelore. In: CONGRESSO BRASILEIRO DE BUIATRIA, 4., 2001, Campo Grande, MS. Anais... Campo Grande: BICCA, 2001. p.42. Biblioteca(s): Embrapa Pecuária Sudeste. |
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137. | | BERGAMASCHI, M. A. C. M.; VICENTE, W. R. R.; BARBOSA, R. T.; MARQUES, J. A.; FREITAS, A. R. de. Efeitos do genótipo paterno e sexo do bezerro no desenvolvimento de fetos bovinos. In: CONGRESSO BRASILEIRO DE MEDICINA VETERINÁRIA; 28.; CONGRESSO INTERNACIONAL DE MEDICINA VETERINÁRIA EM LÍNGUA PORTUGUESA, 9.; CONGRESSO DO COLÉGIO BRASILEIRO DE AQUICULTURA, 2.; CONGRESSO BAIANO DE CLÍNICOS DE PEQUENOS ANIMAIS; CONGRESSO NORDESTINO DE BUIATRIA, 2001, Salvador, BA. Livros de resumos... Salvador: SBMV: SMVBA, 2001. p.242. Biblioteca(s): Embrapa Pecuária Sudeste. |
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138. | | BERGAMASCHI, M. A. C. M.; VICENTE, W. R. R.; BARBOSA, R. T.; MARQUES, J. A.; FREITAS, A. R. de. Efeitos dos perfis plasmáticos maternos de triiodotironina e tiroxina, em fêmeas Nelore, no desenvolvimento de fetos bovinos. In: CONGRESSO BRASILEIRO DE BUIATRIA, 4., 2001, Campo Grande, MS. Anais... Campo Grande: BICCA, 2001. p.43. Biblioteca(s): Embrapa Pecuária Sudeste. |
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Registro Completo
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
19/04/2004 |
Data da última atualização: |
06/05/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
BERGAMASCHI, M. A. C. M.; VICENTE, W. R. R.; BARBOSA, R. T.; MARQUES, J. A.; FREITAS, A. R. de. |
Afiliação: |
MARCO AURELIO C MEIRA BERGAMASCHI, UNESP; W. R. R. VICENTE, UNESP; ROGERIO TAVEIRA BARBOSA, CPPSE; J. A. MARQUES, UNESP; ALFREDO RIBEIRO DE FREITAS, CPPSE. |
Título: |
Effect of grazing system on fetal development in Nellore cattle. |
Ano de publicação: |
2004 |
Fonte/Imprenta: |
Theriogenology, v.61, n.7-8, p.1237-1245, may 2004. |
DOI: |
https://doi.org/10.1016/j.theriogenology.2003.07.021 |
Idioma: |
Inglês |
Conteúdo: |
Intensive grazing systems for beef females, based on abundant availability of high quality forages and supplementary concentrates, may affect fetal development. The objective of this study was to determine the effect of grazing system on length of gestation, fetal development, and characteristics of the calf at birth. Twenty-four pregnant (bred to Nellore bulls) Nellore females were allocated into two groups. The control group (G1) grazed Brachiaria decumbens (signal grass) in a traditional (extensive) grazing system and the second group (G2) were managed on Panicum maximumcv. Tanzania 1 (Tanzania grass) in an intensive grazing system. Fetal development was evaluated by ultrasonography on days 31, 45, 59, 94, 122, 220, and 255 of gestation. The diameter of the amniotic and allantoic cavities, crown-rump length, circumference, and diameter of the head and ocular orbit were determined. At birth, calves were weighed and height, length, thoracic circumference, and ocular orbit and bi-parietal diameters were measured. There were no differences (P>0.05) in fetal development. The G1 cows had a longer gestation period (4.5 days; P<0.05) and their calves had greater (P<0.05) weight, height, length, and thoracic circumference at birth. In conclusion, Nellore females raised under intensive pasture management conditions, had significantly shorter gestation and smaller calves at birth than those raised under extensive pasture management conditions. Therefore, adoption of new management practices (e.g. intensive pasture management), should take into consideration animal behavior and productivity. MenosIntensive grazing systems for beef females, based on abundant availability of high quality forages and supplementary concentrates, may affect fetal development. The objective of this study was to determine the effect of grazing system on length of gestation, fetal development, and characteristics of the calf at birth. Twenty-four pregnant (bred to Nellore bulls) Nellore females were allocated into two groups. The control group (G1) grazed Brachiaria decumbens (signal grass) in a traditional (extensive) grazing system and the second group (G2) were managed on Panicum maximumcv. Tanzania 1 (Tanzania grass) in an intensive grazing system. Fetal development was evaluated by ultrasonography on days 31, 45, 59, 94, 122, 220, and 255 of gestation. The diameter of the amniotic and allantoic cavities, crown-rump length, circumference, and diameter of the head and ocular orbit were determined. At birth, calves were weighed and height, length, thoracic circumference, and ocular orbit and bi-parietal diameters were measured. There were no differences (P>0.05) in fetal development. The G1 cows had a longer gestation period (4.5 days; P<0.05) and their calves had greater (P<0.05) weight, height, length, and thoracic circumference at birth. In conclusion, Nellore females raised under intensive pasture management conditions, had significantly shorter gestation and smaller calves at birth than those raised under extensive pasture management conditions. Therefore, adoption of new management p... Mostrar Tudo |
Palavras-Chave: |
Beff cattle; Fetal growth; Grazing system; Ultrasound. |
Thesaurus NAL: |
Nellore. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 02331naa a2200241 a 4500 001 1046817 005 2022-05-06 008 2004 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.theriogenology.2003.07.021$2DOI 100 1 $aBERGAMASCHI, M. A. C. M. 245 $aEffect of grazing system on fetal development in Nellore cattle.$h[electronic resource] 260 $c2004 520 $aIntensive grazing systems for beef females, based on abundant availability of high quality forages and supplementary concentrates, may affect fetal development. The objective of this study was to determine the effect of grazing system on length of gestation, fetal development, and characteristics of the calf at birth. Twenty-four pregnant (bred to Nellore bulls) Nellore females were allocated into two groups. The control group (G1) grazed Brachiaria decumbens (signal grass) in a traditional (extensive) grazing system and the second group (G2) were managed on Panicum maximumcv. Tanzania 1 (Tanzania grass) in an intensive grazing system. Fetal development was evaluated by ultrasonography on days 31, 45, 59, 94, 122, 220, and 255 of gestation. The diameter of the amniotic and allantoic cavities, crown-rump length, circumference, and diameter of the head and ocular orbit were determined. At birth, calves were weighed and height, length, thoracic circumference, and ocular orbit and bi-parietal diameters were measured. There were no differences (P>0.05) in fetal development. The G1 cows had a longer gestation period (4.5 days; P<0.05) and their calves had greater (P<0.05) weight, height, length, and thoracic circumference at birth. In conclusion, Nellore females raised under intensive pasture management conditions, had significantly shorter gestation and smaller calves at birth than those raised under extensive pasture management conditions. Therefore, adoption of new management practices (e.g. intensive pasture management), should take into consideration animal behavior and productivity. 650 $aNellore 653 $aBeff cattle 653 $aFetal growth 653 $aGrazing system 653 $aUltrasound 700 1 $aVICENTE, W. R. R. 700 1 $aBARBOSA, R. T. 700 1 $aMARQUES, J. A. 700 1 $aFREITAS, A. R. de 773 $tTheriogenology$gv.61, n.7-8, p.1237-1245, may 2004.
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