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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/08/1992 |
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Data da última atualização: |
02/06/2023 |
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Autoria: |
BUNCH, T. D.; FOOTE, W. C.; SPILLETT, J. J. |
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Título: |
Sheep-goat hybrid karyotypes. |
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Ano de publicação: |
1976 |
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Fonte/Imprenta: |
Theriogenology, v. 6, n. 4, p. 379-385, Oct. 1976. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: A "Spanish" goat female was bred to a Barbados sheep ram and gave birth to twin offspring, one of each sex. The Fl female was backcrossed to a Barbados ram and also gave birth to twins, one of each sex. The Fl female has goat-like characters and the coloration of the Barbados. Although the female Barbados is polled, the Fl female hybrid has goat-like horns. The Fl male was lost before assessments could be made. The Fl hybrid possesses a diploid chromosome number of 57 and a karyotype containing 3 unpaired metacentrics, 5 unpaired and 23 pairs of acrocentric autosomes. The male and female backcrosses have Barbados characters and coloration; however, the female has goat-like horns. The male has Barbados or sheep-like horns. The backcrosses have diploid chromosome numbers of 55 and karyotypes containing 1 unpaired and 2 pairs of metacentrics and 2 unpaired and 23 pairs of acrocentric autosomes. The sex chromosomes consist of a large acrocentric X and a small bi-armed Y in the male and 2 large acrocentric Xs in the female. |
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Thesagro: |
Caprino; Hibridação; Ovino; Reprodução. |
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Thesaurus Nal: |
Females; Goats; Hybrids; Reproduction; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 01655naa a2200253 a 4500
001 1523148
005 2023-06-02
008 1976 bl uuuu u00u1 u #d
100 1 $aBUNCH, T. D.
245 $aSheep-goat hybrid karyotypes.$h[electronic resource]
260 $c1976
520 $aAbstract: A "Spanish" goat female was bred to a Barbados sheep ram and gave birth to twin offspring, one of each sex. The Fl female was backcrossed to a Barbados ram and also gave birth to twins, one of each sex. The Fl female has goat-like characters and the coloration of the Barbados. Although the female Barbados is polled, the Fl female hybrid has goat-like horns. The Fl male was lost before assessments could be made. The Fl hybrid possesses a diploid chromosome number of 57 and a karyotype containing 3 unpaired metacentrics, 5 unpaired and 23 pairs of acrocentric autosomes. The male and female backcrosses have Barbados characters and coloration; however, the female has goat-like horns. The male has Barbados or sheep-like horns. The backcrosses have diploid chromosome numbers of 55 and karyotypes containing 1 unpaired and 2 pairs of metacentrics and 2 unpaired and 23 pairs of acrocentric autosomes. The sex chromosomes consist of a large acrocentric X and a small bi-armed Y in the male and 2 large acrocentric Xs in the female.
650 $aFemales
650 $aGoats
650 $aHybrids
650 $aReproduction
650 $aSheep
650 $aCaprino
650 $aHibridação
650 $aOvino
650 $aReprodução
700 1 $aFOOTE, W. C.
700 1 $aSPILLETT, J. J.
773 $tTheriogenology$gv. 6, n. 4, p. 379-385, Oct. 1976.
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