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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: |
27/03/1996 |
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Data da última atualização: |
12/06/2023 |
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Autoria: |
KELLY, R. W.; ALLISON, A. J.; SHACKELL, G. H. |
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Título: |
Libido testing and subsequent mating performance in rams. |
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Ano de publicação: |
1975 |
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Fonte/Imprenta: |
Proceedings of the New Zealand Society of Animal Production, v. 25, p. 204-211, 1975. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The performance of eight 1½-year -old and twenty-five 2½ to 3½-year-old Romney rams and eight 2½ to 3½-year-old Cheviot rams, in pen and paddock libido tests, and their flock mating performances at different ram:ewe ratios was recorded. All rams except one Cheviot were sexually active in the libido tests. There was no effect of age or breed of ram on their performance in the pen libido tests, and there was no difference between the performances of the rams in two pen libido tests conducted two weeks and one week prior to the commencement of flock mating. Variation between rams in flock mating performance, measured by the percentage of total ewes that were marked by each particular ram, could not be accounted for by variation in ram:ewe ratio, age or breed of ram, or any of the libido criteria measured. |
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Palavras-Chave: |
Estacao de monta; Teste. |
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Thesagro: |
Ovino; Reprodução. |
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Thesaurus Nal: |
Libido; Mating behavior; Rams; Reproduction; Reproductive performance; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 01553naa a2200265 a 4500
001 1522388
005 2023-06-12
008 1975 bl uuuu u00u1 u #d
100 1 $aKELLY, R. W.
245 $aLibido testing and subsequent mating performance in rams.$h[electronic resource]
260 $c1975
520 $aAbstract: The performance of eight 1½-year -old and twenty-five 2½ to 3½-year-old Romney rams and eight 2½ to 3½-year-old Cheviot rams, in pen and paddock libido tests, and their flock mating performances at different ram:ewe ratios was recorded. All rams except one Cheviot were sexually active in the libido tests. There was no effect of age or breed of ram on their performance in the pen libido tests, and there was no difference between the performances of the rams in two pen libido tests conducted two weeks and one week prior to the commencement of flock mating. Variation between rams in flock mating performance, measured by the percentage of total ewes that were marked by each particular ram, could not be accounted for by variation in ram:ewe ratio, age or breed of ram, or any of the libido criteria measured.
650 $aLibido
650 $aMating behavior
650 $aRams
650 $aReproduction
650 $aReproductive performance
650 $aSheep
650 $aOvino
650 $aReprodução
653 $aEstacao de monta
653 $aTeste
700 1 $aALLISON, A. J.
700 1 $aSHACKELL, G. H.
773 $tProceedings of the New Zealand Society of Animal Production$gv. 25, p. 204-211, 1975.
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Embrapa Caprinos e Ovinos (CNPC) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
04/04/2016 |
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Data da última atualização: |
04/04/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
CAK, A. D.; MORAN, E. F.; FIGUEIREDO, R. de O.; LU, D.; LI, G.; HETRICK, S. |
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Afiliação: |
ANTHONY D CAK, Indiana University; EMILIO FREDERICO MORAN, Indiana University; RICARDO DE OLIVEIRA FIGUEIREDO, CNPMA; DENGSHENG LU, Indiana University; GUIYING LI, Indiana University; SCOTT HETRICK, Indiana University. |
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Título: |
Urbanization and small household agricultural land use choices in the Brazilian Amazon and the role for the water chemistry of small streams. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Journal of Land Use Science, Abingdon, v. 11, n. 2, p. 203-221, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
Many small watersheds and streams in the Brazilian Amazon have been impacted by agriculture and urban development, often due to household economic needs and migration processes. This study examined the relationships between land use, soil type, and household factors on stream water chemistry in and near the city of Altamira, Pará, Brazil, in 2008?2009. While soil weathering and stream discharge may have affected several stream water ion concentrations, agriculture and especially urban development were associated with high dissolved nitrogen concentrations, high water temperatures, and low dissolved oxygen concentrations in streams. Younger interviewed households were generally associated with these watersheds, and many urban residents reported disposing of household waste directly into streams. In contrast, older households were generally associated with forest and cocoa agriculture, along with lower water temperatures and higher dissolved oxygen concentrations in streams. These conditions persisted despite reported uses of herbicides and fertilizers by some residents. |
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Thesagro: |
Bacia hidrográfica; Qualidade da água; Química da água; Urbanização; Uso da terra. |
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Thesaurus NAL: |
Amazonia; Land cover; Streams; Urbanization; Water quality. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 01979naa a2200301 a 4500
001 2042446
005 2016-04-04
008 2016 bl uuuu u00u1 u #d
100 1 $aCAK, A. D.
245 $aUrbanization and small household agricultural land use choices in the Brazilian Amazon and the role for the water chemistry of small streams.$h[electronic resource]
260 $c2016
520 $aMany small watersheds and streams in the Brazilian Amazon have been impacted by agriculture and urban development, often due to household economic needs and migration processes. This study examined the relationships between land use, soil type, and household factors on stream water chemistry in and near the city of Altamira, Pará, Brazil, in 2008?2009. While soil weathering and stream discharge may have affected several stream water ion concentrations, agriculture and especially urban development were associated with high dissolved nitrogen concentrations, high water temperatures, and low dissolved oxygen concentrations in streams. Younger interviewed households were generally associated with these watersheds, and many urban residents reported disposing of household waste directly into streams. In contrast, older households were generally associated with forest and cocoa agriculture, along with lower water temperatures and higher dissolved oxygen concentrations in streams. These conditions persisted despite reported uses of herbicides and fertilizers by some residents.
650 $aAmazonia
650 $aLand cover
650 $aStreams
650 $aUrbanization
650 $aWater quality
650 $aBacia hidrográfica
650 $aQualidade da água
650 $aQuímica da água
650 $aUrbanização
650 $aUso da terra
700 1 $aMORAN, E. F.
700 1 $aFIGUEIREDO, R. de O.
700 1 $aLU, D.
700 1 $aLI, G.
700 1 $aHETRICK, S.
773 $tJournal of Land Use Science, Abingdon$gv. 11, n. 2, p. 203-221, 2016.
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Embrapa Meio Ambiente (CNPMA) |
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