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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
20/09/2007 |
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Data da última atualização: |
20/09/2007 |
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Autoria: |
MARTINS, R. R. C.; OLIVEIRA, N. M. de; OSÓRIO, J. C. da S.; OSÓRIO, M. T. M. |
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Título: |
Study of the effect of the genotype-nutrition interaction on liveweight and carcass component in Corriedale and polwarth lambs. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
In: WORLD CONGRESS ON GENETICS APPLIED TO LIVESTOCK PRODUCTION, 8., 2006, Belo Horizonte, MG. Proceedings... Belo Horizonte: Instituto Prociência, 2006. 4 f. 1 CD-ROM. |
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Idioma: |
Inglês |
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Conteúdo: |
With the objective of evaluating the isolated effects of genotype and of nutritional system, as well as the effect of the interaction between genotype and nutrition on liveweight and carcass component, sixty Polwarth male lambs and 51 Corriedale male lamb, born at the end of August and September, raised in three different nutritional systems: 1) native pasture (mainly Paspalum notatum Flügge and Axonopus affinis Chase); 2) improved pasture (Trifolium repens L., Lolium multiflorum Lam. and Lotus corniculatus L.) and 3) confinement receiving a commercial concentrate (17% of crude protein and 75% of energy) and slaughtered with 122 days of age, were examined. The animals were weighed before slaughtering and, after slaughtering, the following traits were measured: hot and cold carcass weights, pelvic fat, conformation, carcass length, loin eye area. Commercial and true carcass yield, carcass losses and compacity were obtained by calculation. The experimental design was a totally randomized in a 3x2 factors (nutritional systems and genotypes). The effect of the nutrition showed equally between the two breeds studied for almost all the analyzed parameters. However, the genotype-nutrition interaction was significant (P<0,05) for pelvic and renal fat and for thickness of covering fat, presenting the breed Ideal larger values for both parameters. When raised on the lower nutritional systems, the breeds Ideal and Corriedale have morphology similar and could be marketed your carcasses in a same specific denomination of meat quality. However, when they are submitted at a higher nutritional level, lambs of the Ideal
breed tends to deposit more fat than Corriedale lambs. MenosWith the objective of evaluating the isolated effects of genotype and of nutritional system, as well as the effect of the interaction between genotype and nutrition on liveweight and carcass component, sixty Polwarth male lambs and 51 Corriedale male lamb, born at the end of August and September, raised in three different nutritional systems: 1) native pasture (mainly Paspalum notatum Flügge and Axonopus affinis Chase); 2) improved pasture (Trifolium repens L., Lolium multiflorum Lam. and Lotus corniculatus L.) and 3) confinement receiving a commercial concentrate (17% of crude protein and 75% of energy) and slaughtered with 122 days of age, were examined. The animals were weighed before slaughtering and, after slaughtering, the following traits were measured: hot and cold carcass weights, pelvic fat, conformation, carcass length, loin eye area. Commercial and true carcass yield, carcass losses and compacity were obtained by calculation. The experimental design was a totally randomized in a 3x2 factors (nutritional systems and genotypes). The effect of the nutrition showed equally between the two breeds studied for almost all the analyzed parameters. However, the genotype-nutrition interaction was significant (P<0,05) for pelvic and renal fat and for thickness of covering fat, presenting the breed Ideal larger values for both parameters. When raised on the lower nutritional systems, the breeds Ideal and Corriedale have morphology similar and could be marketed your carcasses ... Mostrar Tudo |
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Palavras-Chave: |
Peso vivo; Predição de carcaça. |
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Thesagro: |
Cordeiro; Genótipo; Melhoramento Genético Animal; Ovino. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02501naa a2200229 a 4500
001 1533360
005 2007-09-20
008 2006 bl uuuu u00u1 u #d
100 1 $aMARTINS, R. R. C.
245 $aStudy of the effect of the genotype-nutrition interaction on liveweight and carcass component in Corriedale and polwarth lambs.
260 $c2006
520 $aWith the objective of evaluating the isolated effects of genotype and of nutritional system, as well as the effect of the interaction between genotype and nutrition on liveweight and carcass component, sixty Polwarth male lambs and 51 Corriedale male lamb, born at the end of August and September, raised in three different nutritional systems: 1) native pasture (mainly Paspalum notatum Flügge and Axonopus affinis Chase); 2) improved pasture (Trifolium repens L., Lolium multiflorum Lam. and Lotus corniculatus L.) and 3) confinement receiving a commercial concentrate (17% of crude protein and 75% of energy) and slaughtered with 122 days of age, were examined. The animals were weighed before slaughtering and, after slaughtering, the following traits were measured: hot and cold carcass weights, pelvic fat, conformation, carcass length, loin eye area. Commercial and true carcass yield, carcass losses and compacity were obtained by calculation. The experimental design was a totally randomized in a 3x2 factors (nutritional systems and genotypes). The effect of the nutrition showed equally between the two breeds studied for almost all the analyzed parameters. However, the genotype-nutrition interaction was significant (P<0,05) for pelvic and renal fat and for thickness of covering fat, presenting the breed Ideal larger values for both parameters. When raised on the lower nutritional systems, the breeds Ideal and Corriedale have morphology similar and could be marketed your carcasses in a same specific denomination of meat quality. However, when they are submitted at a higher nutritional level, lambs of the Ideal breed tends to deposit more fat than Corriedale lambs.
650 $aCordeiro
650 $aGenótipo
650 $aMelhoramento Genético Animal
650 $aOvino
653 $aPeso vivo
653 $aPredição de carcaça
700 1 $aOLIVEIRA, N. M. de
700 1 $aOSÓRIO, J. C. da S.
700 1 $aOSÓRIO, M. T. M.
773 $tIn: WORLD CONGRESS ON GENETICS APPLIED TO LIVESTOCK PRODUCTION, 8., 2006, Belo Horizonte, MG. Proceedings... Belo Horizonte: Instituto Prociência, 2006. 4 f. 1 CD-ROM.
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Embrapa Caprinos e Ovinos (CNPC) |
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