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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
31/08/2004 |
Data da última atualização: |
01/09/2004 |
Autoria: |
ULKER, H.; GOKDAL, O.; TEMUR, C.; BUDAG, C.; OTO, M.; AVILA, D. M. de; REEVES, J. J. |
Título: |
The effect of immunization against LHRH on body growth and carcass characteristics in Karakas ram lambs. |
Ano de publicação: |
2002 |
Fonte/Imprenta: |
Small Ruminant Research, v. 45, n. 3, p. 273-278, 2002. |
Idioma: |
Inglês |
Conteúdo: |
The effects of immunization against luteinizing hormone releasing hormone (LHRH) on body growth and carcass characteristics in Karakas ram lambs were investigated using recombinant LHRH fusion proteins. Recombinant fusion proteins, ovalbumin-LHRH-7 and thioredoxin-LHRH-7, were produced using recombinant DNA technology and expressed in E. coli. The controI group (C, n = 5) was injected with ovalbumin and thioredoxin recombinant protein mixture, the immunization group (l, n = 6) was injected with a ovalbumin-LHRH-7 and thioredoxin-LHRH-7 recombinant fusion protein mixture (anti-LHRH vaccine) and, ram lambs in the elastrator group (E, n = 5) were castrated using elastrator bands. Animals in each group were weaned at 17 weeks of age and injected (primary immunization) with either mixture at 18 weeks of age or castrated. The C and I groups received a booster immunization 8 weeks later (26 weeks of age). Animals were housed in groups, weighéd every 2 weeks and slaughtered at 36 weeks of age. Carcass of slaughtered lambs were chilled for 24 h at +4oC and evaluated for carcass characteristics. Immunization did not reduce growth rate and live body weights. Immunization and castration had no effect on carcass measurements and loin eye muscle area, hot and cold carcass weights, dressing percentage and wholesale cuts. Immunization against LHRH reduced testis weight and immunized animals had leaner carcasses than castrates. It was concluded that immunizing ram lambs against LHRH using new recombinant LHRH fusion proteins could be an alternative to physical castration to improve carcass quality in ram lamb production; however, further research is required to determine the effective immunization and slaughter age to improve carcass traits. MenosThe effects of immunization against luteinizing hormone releasing hormone (LHRH) on body growth and carcass characteristics in Karakas ram lambs were investigated using recombinant LHRH fusion proteins. Recombinant fusion proteins, ovalbumin-LHRH-7 and thioredoxin-LHRH-7, were produced using recombinant DNA technology and expressed in E. coli. The controI group (C, n = 5) was injected with ovalbumin and thioredoxin recombinant protein mixture, the immunization group (l, n = 6) was injected with a ovalbumin-LHRH-7 and thioredoxin-LHRH-7 recombinant fusion protein mixture (anti-LHRH vaccine) and, ram lambs in the elastrator group (E, n = 5) were castrated using elastrator bands. Animals in each group were weaned at 17 weeks of age and injected (primary immunization) with either mixture at 18 weeks of age or castrated. The C and I groups received a booster immunization 8 weeks later (26 weeks of age). Animals were housed in groups, weighéd every 2 weeks and slaughtered at 36 weeks of age. Carcass of slaughtered lambs were chilled for 24 h at +4oC and evaluated for carcass characteristics. Immunization did not reduce growth rate and live body weights. Immunization and castration had no effect on carcass measurements and loin eye muscle area, hot and cold carcass weights, dressing percentage and wholesale cuts. Immunization against LHRH reduced testis weight and immunized animals had leaner carcasses than castrates. It was concluded that immunizing ram lambs against LHRH using ne... Mostrar Tudo |
Palavras-Chave: |
Característica de carcaça; LHRH. |
Thesagro: |
Cordeiro; Crescimento; Endocrinologia; Imunização; Ovino; Reprodução Animal. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02535naa a2200289 a 4500 001 1530717 005 2004-09-01 008 2002 bl uuuu u00u1 u #d 100 1 $aULKER, H. 245 $aThe effect of immunization against LHRH on body growth and carcass characteristics in Karakas ram lambs. 260 $c2002 520 $aThe effects of immunization against luteinizing hormone releasing hormone (LHRH) on body growth and carcass characteristics in Karakas ram lambs were investigated using recombinant LHRH fusion proteins. Recombinant fusion proteins, ovalbumin-LHRH-7 and thioredoxin-LHRH-7, were produced using recombinant DNA technology and expressed in E. coli. The controI group (C, n = 5) was injected with ovalbumin and thioredoxin recombinant protein mixture, the immunization group (l, n = 6) was injected with a ovalbumin-LHRH-7 and thioredoxin-LHRH-7 recombinant fusion protein mixture (anti-LHRH vaccine) and, ram lambs in the elastrator group (E, n = 5) were castrated using elastrator bands. Animals in each group were weaned at 17 weeks of age and injected (primary immunization) with either mixture at 18 weeks of age or castrated. The C and I groups received a booster immunization 8 weeks later (26 weeks of age). Animals were housed in groups, weighéd every 2 weeks and slaughtered at 36 weeks of age. Carcass of slaughtered lambs were chilled for 24 h at +4oC and evaluated for carcass characteristics. Immunization did not reduce growth rate and live body weights. Immunization and castration had no effect on carcass measurements and loin eye muscle area, hot and cold carcass weights, dressing percentage and wholesale cuts. Immunization against LHRH reduced testis weight and immunized animals had leaner carcasses than castrates. It was concluded that immunizing ram lambs against LHRH using new recombinant LHRH fusion proteins could be an alternative to physical castration to improve carcass quality in ram lamb production; however, further research is required to determine the effective immunization and slaughter age to improve carcass traits. 650 $aCordeiro 650 $aCrescimento 650 $aEndocrinologia 650 $aImunização 650 $aOvino 650 $aReprodução Animal 653 $aCaracterística de carcaça 653 $aLHRH 700 1 $aGOKDAL, O. 700 1 $aTEMUR, C. 700 1 $aBUDAG, C. 700 1 $aOTO, M. 700 1 $aAVILA, D. M. de 700 1 $aREEVES, J. J. 773 $tSmall Ruminant Research$gv. 45, n. 3, p. 273-278, 2002.
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Embrapa Caprinos e Ovinos (CNPC) |
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Registro Completo
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
23/05/2001 |
Data da última atualização: |
23/05/2001 |
Autoria: |
CARVALHO, P. E. R. |
Afiliação: |
Carvalho, P. E. R., pesquisador da EMBRAPA-CNPF. |
Título: |
Senna multijuga (L. C. Rich.) Irwin & Barneby: pau-cigarra. |
Ano de publicação: |
1994 |
Fonte/Imprenta: |
In: CARVALHO, P.E.R. Especies florestais brasileiras: recomendacoes silviculturais, potencialidades e uso da madeira. Colombo: EMBRAPA-CNPF / Brasilia: EMBRAPA-SPI, 1994. p.484-487. |
Idioma: |
Português |
Conteúdo: |
Senna multijuga (L. C. Rich) Irwin & Barneby. |
Palavras-Chave: |
Biologia reprodutiva; Descricao botanica; Growth; Irwin & Barneby; Natural distribution; Ocorrencia natural; Pau-cigarra; Production; Products; Rich; Seed; Senna multijuga; Senna multijuga (L C Rich) Irwin & Barneby; Uses; Uso. |
Thesagro: |
Clima; Crescimento; Ecologia; Fenologia; Madeira; Muda; Produção; Semente; Silvicultura; Solo; Taxonomia. |
Thesaurus NAL: |
botany; climate; ecology; phenology; reproduction; seedlings; silviculture; soil; taxonomy; wood. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01488naa a2200553 a 4500 001 1301537 005 2001-05-23 008 1994 bl uuuu u00u1 u #d 100 1 $aCARVALHO, P. E. R. 245 $aSenna multijuga (L. C. Rich.) Irwin & Barneby$bpau-cigarra. 260 $c1994 520 $aSenna multijuga (L. C. Rich) Irwin & Barneby. 650 $abotany 650 $aclimate 650 $aecology 650 $aphenology 650 $areproduction 650 $aseedlings 650 $asilviculture 650 $asoil 650 $ataxonomy 650 $awood 650 $aClima 650 $aCrescimento 650 $aEcologia 650 $aFenologia 650 $aMadeira 650 $aMuda 650 $aProdução 650 $aSemente 650 $aSilvicultura 650 $aSolo 650 $aTaxonomia 653 $aBiologia reprodutiva 653 $aDescricao botanica 653 $aGrowth 653 $aIrwin & Barneby 653 $aNatural distribution 653 $aOcorrencia natural 653 $aPau-cigarra 653 $aProduction 653 $aProducts 653 $aRich 653 $aSeed 653 $aSenna multijuga 653 $aSenna multijuga (L C Rich) Irwin & Barneby 653 $aUses 653 $aUso 773 $tIn: CARVALHO, P.E.R. Especies florestais brasileiras: recomendacoes silviculturais, potencialidades e uso da madeira. Colombo: EMBRAPA-CNPF / Brasilia: EMBRAPA-SPI, 1994. p.484-487.
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