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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
26/08/2002 |
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Data da última atualização: |
26/08/2002 |
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Autoria: |
BURKE, J. M.; JACKSON, W. G.; ROBSON, G. A. |
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Título: |
Seasonal changes in body weight and condition, and pregnancy and lambing rates of sheep on endophyte-infected tall fescue in the south-eastern United States. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Small Ruminant Research, v.44, n.2, p.141-151, 2002. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of these studies was to evaluate the seasonal maintenance of body weight (BW) and condition, signs of fescue toxicosis, and reproductive performance of straightbred and cross-bred hair sheep grazing tall fescue or bermudagrass forage. Breeds examined were St. Croix (SC), Romanov (ROM) and cross-bred ewes. BW was measured in the summer (1998-2000) and the fall (1999) on ewes grazing bermudagrass overseeded with ryegrass (BER) or tall fescue (FES) forage. Body condition score (BCS) and serum prolactin concentrations were determined in the summer (1999,2000) and fall (1999). Pregnancy and lambing rates of a summer and fall (1999) breeding season and pregnancy rates of the spring (2000) breeding season were recorded. BW and BCS reflected seasonal differences related to the forage availability of BER and FES, seasonal variations in toxins of FES forage and breed differences. At all times, serum prolactin concentrations were reduced in ewes grazing FES pastures (P < 0.01), with the exception of the summer of 1999, where cross-bred yearling ewes maintained on FES exhibited an increase in prolactin level compared to those grazing on BER forage (forage x breed; P < 0.05). Pregnancy and lambing rates were similar for forage treatments, with the exception of a reduction in reproductive rate in yearling cross-bred ewes maintained on FES in summer (1999; P < 0.05). Birth and weaning weights of lambs were similar for suckling ewes maintained on BER and FES forage. These experiments demonstrated that, in contrast to cattle, BCS of SC, ROM and cross-bred ewes can be maintained in an acceptable range with either BER or FES forage. Pregnancy rate may be reduced in yearling, but not the older ewes maintained on FES forage. Birth weights and growth of lambs of mature ewes were similar for the forage treatments. It is recommended that breeding of yearling ewes occur on pastures free of endophyte-infected tall fescue. MenosThe objective of these studies was to evaluate the seasonal maintenance of body weight (BW) and condition, signs of fescue toxicosis, and reproductive performance of straightbred and cross-bred hair sheep grazing tall fescue or bermudagrass forage. Breeds examined were St. Croix (SC), Romanov (ROM) and cross-bred ewes. BW was measured in the summer (1998-2000) and the fall (1999) on ewes grazing bermudagrass overseeded with ryegrass (BER) or tall fescue (FES) forage. Body condition score (BCS) and serum prolactin concentrations were determined in the summer (1999,2000) and fall (1999). Pregnancy and lambing rates of a summer and fall (1999) breeding season and pregnancy rates of the spring (2000) breeding season were recorded. BW and BCS reflected seasonal differences related to the forage availability of BER and FES, seasonal variations in toxins of FES forage and breed differences. At all times, serum prolactin concentrations were reduced in ewes grazing FES pastures (P < 0.01), with the exception of the summer of 1999, where cross-bred yearling ewes maintained on FES exhibited an increase in prolactin level compared to those grazing on BER forage (forage x breed; P < 0.05). Pregnancy and lambing rates were similar for forage treatments, with the exception of a reduction in reproductive rate in yearling cross-bred ewes maintained on FES in summer (1999; P < 0.05). Birth and weaning weights of lambs were similar for suckling ewes maintained on BER and FES forage. These expe... Mostrar Tudo |
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Palavras-Chave: |
Estação de parição. |
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Thesagro: |
Condição Corporal; Cynodon Dactylon; Festuca Arundinacea; Grama Bermuda; Intoxicação; Ovino; Planta Forrageira; Planta Tóxica; Reprodução; Variação Sazonal. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02797naa a2200277 a 4500
001 1528512
005 2002-08-26
008 2002 bl uuuu u00u1 u #d
100 1 $aBURKE, J. M.
245 $aSeasonal changes in body weight and condition, and pregnancy and lambing rates of sheep on endophyte-infected tall fescue in the south-eastern United States.
260 $c2002
520 $aThe objective of these studies was to evaluate the seasonal maintenance of body weight (BW) and condition, signs of fescue toxicosis, and reproductive performance of straightbred and cross-bred hair sheep grazing tall fescue or bermudagrass forage. Breeds examined were St. Croix (SC), Romanov (ROM) and cross-bred ewes. BW was measured in the summer (1998-2000) and the fall (1999) on ewes grazing bermudagrass overseeded with ryegrass (BER) or tall fescue (FES) forage. Body condition score (BCS) and serum prolactin concentrations were determined in the summer (1999,2000) and fall (1999). Pregnancy and lambing rates of a summer and fall (1999) breeding season and pregnancy rates of the spring (2000) breeding season were recorded. BW and BCS reflected seasonal differences related to the forage availability of BER and FES, seasonal variations in toxins of FES forage and breed differences. At all times, serum prolactin concentrations were reduced in ewes grazing FES pastures (P < 0.01), with the exception of the summer of 1999, where cross-bred yearling ewes maintained on FES exhibited an increase in prolactin level compared to those grazing on BER forage (forage x breed; P < 0.05). Pregnancy and lambing rates were similar for forage treatments, with the exception of a reduction in reproductive rate in yearling cross-bred ewes maintained on FES in summer (1999; P < 0.05). Birth and weaning weights of lambs were similar for suckling ewes maintained on BER and FES forage. These experiments demonstrated that, in contrast to cattle, BCS of SC, ROM and cross-bred ewes can be maintained in an acceptable range with either BER or FES forage. Pregnancy rate may be reduced in yearling, but not the older ewes maintained on FES forage. Birth weights and growth of lambs of mature ewes were similar for the forage treatments. It is recommended that breeding of yearling ewes occur on pastures free of endophyte-infected tall fescue.
650 $aCondição Corporal
650 $aCynodon Dactylon
650 $aFestuca Arundinacea
650 $aGrama Bermuda
650 $aIntoxicação
650 $aOvino
650 $aPlanta Forrageira
650 $aPlanta Tóxica
650 $aReprodução
650 $aVariação Sazonal
653 $aEstação de parição
700 1 $aJACKSON, W. G.
700 1 $aROBSON, G. A.
773 $tSmall Ruminant Research$gv.44, n.2, p.141-151, 2002.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
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Cutter |
Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Agropecuária Oeste. |
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Data corrente: |
18/10/1993 |
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Data da última atualização: |
30/10/2012 |
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Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
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Autoria: |
MELO FILHO, G. A. de; RICHETTI, A.; KRUKER, J. M. |
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Título: |
Custo de produção de milho, safra 1993/94. |
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Ano de publicação: |
1993 |
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Fonte/Imprenta: |
Dourados: EMBRAPA-CPAO, 1993. |
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Páginas: |
2 p. |
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Série: |
(EMBRAPA-CPAO. Comunicado técnico, 2). |
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Idioma: |
Português |
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Conteúdo: |
Os custos ora apresentados refletem as condições de solo, topografia, máquinas e benfeitorias da propriedade representativa. No entanto, cada uma apresenta particularidades quanto à topografia, fertilidade dos solos, máquinas, tecnologia, área plantada e, até mesmo aspectos administrativos, que a torna diferenciada quanto à estrutura dos custos de produção. Portanto, em alguns casos, os custos poderão ser maiores e, em outros, menores, e as diferenças podem recair tanto sobre o custo fixo quanto sobre o variável. |
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Palavras-Chave: |
Brasil; Cost; Dourados; Economy; Estimated costs; Maize; Mato Grosso do Sul; Production; Production cost; Production system; Proudução; Safra 1993/94; Wheats. |
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Thesagro: |
Custo; Custo de Produção; Economia; Milho; Produção; Safra; Zea Mays. |
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Thesaurus NAL: |
Brazil; corn. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/65938/1/CPAO-COM.-TEC.-2-93.pdf
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Marc: |
LEADER 01528nam a2200421 a 4500
001 1236311
005 2012-10-30
008 1993 bl uuuu u0uu1 u #d
100 1 $aMELO FILHO, G. A. de
245 $aCusto de produção de milho, safra 1993/94.
260 $aDourados: EMBRAPA-CPAO$c1993
300 $a2 p.
490 $a(EMBRAPA-CPAO. Comunicado técnico, 2).
520 $aOs custos ora apresentados refletem as condições de solo, topografia, máquinas e benfeitorias da propriedade representativa. No entanto, cada uma apresenta particularidades quanto à topografia, fertilidade dos solos, máquinas, tecnologia, área plantada e, até mesmo aspectos administrativos, que a torna diferenciada quanto à estrutura dos custos de produção. Portanto, em alguns casos, os custos poderão ser maiores e, em outros, menores, e as diferenças podem recair tanto sobre o custo fixo quanto sobre o variável.
650 $aBrazil
650 $acorn
650 $aCusto
650 $aCusto de Produção
650 $aEconomia
650 $aMilho
650 $aProdução
650 $aSafra
650 $aZea Mays
653 $aBrasil
653 $aCost
653 $aDourados
653 $aEconomy
653 $aEstimated costs
653 $aMaize
653 $aMato Grosso do Sul
653 $aProduction
653 $aProduction cost
653 $aProduction system
653 $aProudução
653 $aSafra 1993/94
653 $aWheats
700 1 $aRICHETTI, A.
700 1 $aKRUKER, J. M.
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Registro original: |
Embrapa Agropecuária Oeste (CPAO) |
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