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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
06/04/2005 |
Data da última atualização: |
06/04/2005 |
Autoria: |
EL FADILI, M.; MICHAUX, C.; DETILLEUX, J.; LEROY, P. L. |
Título: |
Evaluation of fattening performances and carcass charactaristics of purebred, first and second cross lambs between Moroccan Timahdite, D'man and improved meat rams. |
Ano de publicação: |
2001 |
Fonte/Imprenta: |
Animal Science, v. 72, pt 2 , p. 251-257, 2001. |
Idioma: |
Inglês |
Conteúdo: |
Fattening performance and carcass characteristics were evaluated in 202 lambs sired by D'man (D), Timahdite (T) and terminal sires of the Ile-de-France (IF), Lacaune (L), and Mérinos Précoce (MP) breeds. Previous results had suggested that the three latter improved breeds had relatively similar growth and carcass performance in cross- breeding. They were, therefore, pooled in this study into one meat group breed (M) to facilitate comparisons between lhe five genotypes of interest: two purebreds (T, D), two single crosses (D X T (DT), M X T), and one three-breed cross (M X DT). Results showed important improvements of performance in crossbred lambs especially those sired by meat breed rams. M X T and M X DT lambs grew fastest (238 and 256 g/day, respectively) and showed lhe best food conversion ratio. D purebred lambs realized lhe lowest fattening gains (196 g/day) while, T and D X T lambs were intermediate (209 and 218 g/day, respectively). The D lambs deposited relatively more infernal fat and relatively less subcutaneous backfat, and their carcasses had the lowest conformation score and smal lest longissimus muscle area (11.23 cm2). The carcasses of M X T and M X DT crossbred lambs had larger longissimus muscle areas 13.97 and 13.88 cm2, respectively, thicker subcutaneous fat cover and better conformation scores than other genotypes. The effects of M as a terminal sire breed were favourable for the majority of fattening and carcass characteristics. The absence of differences between M X T and M X DT genotypes on post- weaning growth, food conversion ratio and on objective and subjective measurements of carcass conformation indicated that the infusion of 25% of D genes in M X DT lambs dia not affect post-weaning growth and carcass traits. The results on the use of M sires and DT dams, which have above average reproductive rales, in M X DT crossbreeding indicate that a two-stage crossbreeding system could enhance the quantity and the quality of meat sheep production in Morocco. MenosFattening performance and carcass characteristics were evaluated in 202 lambs sired by D'man (D), Timahdite (T) and terminal sires of the Ile-de-France (IF), Lacaune (L), and Mérinos Précoce (MP) breeds. Previous results had suggested that the three latter improved breeds had relatively similar growth and carcass performance in cross- breeding. They were, therefore, pooled in this study into one meat group breed (M) to facilitate comparisons between lhe five genotypes of interest: two purebreds (T, D), two single crosses (D X T (DT), M X T), and one three-breed cross (M X DT). Results showed important improvements of performance in crossbred lambs especially those sired by meat breed rams. M X T and M X DT lambs grew fastest (238 and 256 g/day, respectively) and showed lhe best food conversion ratio. D purebred lambs realized lhe lowest fattening gains (196 g/day) while, T and D X T lambs were intermediate (209 and 218 g/day, respectively). The D lambs deposited relatively more infernal fat and relatively less subcutaneous backfat, and their carcasses had the lowest conformation score and smal lest longissimus muscle area (11.23 cm2). The carcasses of M X T and M X DT crossbred lambs had larger longissimus muscle areas 13.97 and 13.88 cm2, respectively, thicker subcutaneous fat cover and better conformation scores than other genotypes. The effects of M as a terminal sire breed were favourable for the majority of fattening and carcass characteristics. The absence of differenc... Mostrar Tudo |
Palavras-Chave: |
Composição; Timahdite. |
Thesagro: |
Carcaça; Crescimento; Cruzamento; Genética Animal; Melhoramento; Ovino. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02755naa a2200253 a 4500 001 1531083 005 2005-04-06 008 2001 bl uuuu u00u1 u #d 100 1 $aEL FADILI, M. 245 $aEvaluation of fattening performances and carcass charactaristics of purebred, first and second cross lambs between Moroccan Timahdite, D'man and improved meat rams. 260 $c2001 520 $aFattening performance and carcass characteristics were evaluated in 202 lambs sired by D'man (D), Timahdite (T) and terminal sires of the Ile-de-France (IF), Lacaune (L), and Mérinos Précoce (MP) breeds. Previous results had suggested that the three latter improved breeds had relatively similar growth and carcass performance in cross- breeding. They were, therefore, pooled in this study into one meat group breed (M) to facilitate comparisons between lhe five genotypes of interest: two purebreds (T, D), two single crosses (D X T (DT), M X T), and one three-breed cross (M X DT). Results showed important improvements of performance in crossbred lambs especially those sired by meat breed rams. M X T and M X DT lambs grew fastest (238 and 256 g/day, respectively) and showed lhe best food conversion ratio. D purebred lambs realized lhe lowest fattening gains (196 g/day) while, T and D X T lambs were intermediate (209 and 218 g/day, respectively). The D lambs deposited relatively more infernal fat and relatively less subcutaneous backfat, and their carcasses had the lowest conformation score and smal lest longissimus muscle area (11.23 cm2). The carcasses of M X T and M X DT crossbred lambs had larger longissimus muscle areas 13.97 and 13.88 cm2, respectively, thicker subcutaneous fat cover and better conformation scores than other genotypes. The effects of M as a terminal sire breed were favourable for the majority of fattening and carcass characteristics. The absence of differences between M X T and M X DT genotypes on post- weaning growth, food conversion ratio and on objective and subjective measurements of carcass conformation indicated that the infusion of 25% of D genes in M X DT lambs dia not affect post-weaning growth and carcass traits. The results on the use of M sires and DT dams, which have above average reproductive rales, in M X DT crossbreeding indicate that a two-stage crossbreeding system could enhance the quantity and the quality of meat sheep production in Morocco. 650 $aCarcaça 650 $aCrescimento 650 $aCruzamento 650 $aGenética Animal 650 $aMelhoramento 650 $aOvino 653 $aComposição 653 $aTimahdite 700 1 $aMICHAUX, C. 700 1 $aDETILLEUX, J. 700 1 $aLEROY, P. L. 773 $tAnimal Science$gv. 72, pt 2 , p. 251-257, 2001.
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Embrapa Caprinos e Ovinos (CNPC) |
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1. | | CRUZ, F. A. C. S.; TORRES, M. M.; POLETTO, D.; MENDONÇA, A. J.; GUIMARÃES, L. D.; ALMEIDA, A. B. P. F.; SILVA, F. G.; SOUSA, V. R. F. Avaliação de peptídeo natriurético em cães doentes renais crônicos. Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 37, n. 11, p. 1322-1326, novembro 2017. Título em inglês: Natriuretic peptide assessment in dogs with chronic kidney disease.Biblioteca(s): Embrapa Unidades Centrais. |
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2. | | TORRES. M. M.; CRUZ, F. A. C. S.; SILVA, E. P.; POLETTO, D.; CAYUELA, M. A. A.; MENDONÇA, A. J.; ALMEIDA, A. B. P. F.; SOUZA, V. R. F. Relation between anaemia and bone marrow features and serum erythropoietin in dogs with chronic kidney disease. Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 37, n. 6, p. 598-602, jun. 2017. Título em português: Relação entre anemia e achados de medula óssea e eritropoetina sérica em cães com doença renal crônica.Biblioteca(s): Embrapa Unidades Centrais. |
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