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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
06/04/2005 |
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Data da última atualização: |
06/04/2005 |
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Autoria: |
EL FADILI, M.; MICHAUX, C.; DETILLEUX, J.; LEROY, P. L. |
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Título: |
Evaluation of fattening performances and carcass charactaristics of purebred, first and second cross lambs between Moroccan Timahdite, D'man and improved meat rams. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Animal Science, v. 72, pt 2 , p. 251-257, 2001. |
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Idioma: |
Inglês |
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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 |
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Palavras-Chave: |
Composição; Timahdite. |
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Thesagro: |
Carcaça; Crescimento; Cruzamento; Genética Animal; Melhoramento; Ovino. |
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Categoria do assunto: |
-- |
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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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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Roraima. |
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Data corrente: |
15/04/2010 |
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Data da última atualização: |
17/11/2022 |
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Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
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Autoria: |
FERREIRA, G. B.; SMIDERLE, O. J.; MOURÃO JÚNIOR, M. |
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Afiliação: |
Gilvan Barbosa Ferreira, CPAF-RR; Oscar José Smiderle, CPAF-RR; Moises Mourão Júnior, CPATU. |
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Título: |
Adubação corretiva com fósforo no algodoeiro cultivado no cerrado de Roraima. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Boa Vista, RR: Embrapa Roraima, 2009. |
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Páginas: |
8 p. |
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Série: |
(Embrapa Roraima. Comunicado Técnico, 42). |
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Idioma: |
Português |
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Palavras-Chave: |
Algodoeiro. |
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Thesagro: |
Adubação; Cerrado. |
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Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/696070/1/cot42-2009-algodaofosforo-gilvan.pdf
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Marc: |
LEADER 00531nam a2200181 a 4500
001 1696070
005 2022-11-17
008 2009 bl uuuu u0uu1 u #d
100 1 $aFERREIRA, G. B.
245 $aAdubação corretiva com fósforo no algodoeiro cultivado no cerrado de Roraima.
260 $aBoa Vista, RR: Embrapa Roraima$c2009
300 $a8 p.
490 $a(Embrapa Roraima. Comunicado Técnico, 42).
650 $aAdubação
650 $aCerrado
653 $aAlgodoeiro
700 1 $aSMIDERLE, O. J.
700 1 $aMOURÃO JÚNIOR, M.
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Embrapa Roraima (CPAF-RR) |
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