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Biblioteca(s):  Embrapa Caprinos e Ovinos.
Data corrente:  08/01/1998
Data da última atualização:  11/02/2025
Autoria:  BRADFORD, G. E.
Título:  Genetic and economic aspects of selecting for lamb carcass quality.
Ano de publicação:  1967
Fonte/Imprenta:  Journal of Animal Science, v. 26, n. 1, p. 10-15, 1967.
Idioma:  Inglês
Notas:  Invited paper presented at the Sheep Special Lives toe Session,57th Annual Meeting, American Society of Anim; Science, East Lansing, Michigan.
Conteúdo:  Abstract: The problem of how to make genetic improvement in lamb carcass and meat quality is an important one to the industry, but one for which many relevant questions are unanswered or only partly answered. The greatest scarcity of information of the desired reliability for decision making is probably in the area of relative economic values of carcass and other production characteristics. Also extremely important but at present largely lacking is information on genetic correlations among these, especially with respect to the kinds of problems likely to be encountered as a result of intense directional selection for specific traits. Accurate estimates of heritability of lamb carcass traits are also lacking, although this may be a less serious problem than the first two mentioned. We can probably assume, from the limited information on sheep and from knowledge of other species, that lamb carcass traits have medium to high heritability.
Thesagro:  Carcaça; Melhoramento; Ovino; Seleção.
Categoria do assunto:  --
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Caprinos e Ovinos (CNPC)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status URL
CNPC4099 - 1ADDAA - PP
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Biblioteca(s):  Embrapa Semiárido.
Data corrente:  19/04/2016
Data da última atualização:  20/02/2017
Tipo da produção científica:  Artigo em Periódico Indexado
Circulação/Nível:  B - 1
Autoria:  PEREIRA FILHO, A.; TEIXEIRA FILHO, J.; GIONGO, V.; SIMOES, W. L.; LAL, R.
Afiliação:  ANTONIO PEREIRA FILHO, UNIVASF; JOSÉ TEIXEIRA FILHO, UNICAMP; VANDERLISE GIONGO, CPATSA; WELSON LIMA SIMOES, CPATSA; RATTAN LAL, Ohio State University, Columbus, OH.
Título:  Nutrients dynamics in soil solution at the outset of notill implementation with the use of plant cocktails in Brazilian Semi-Arid.
Ano de publicação:  2016
Fonte/Imprenta:  African Journal of Agricultural Research, v. 11, n. 4, p. 234-246, jan. 2016.
ISSN:  1991-637X
DOI:  10.5897/AJAR2015.10047
Idioma:  Inglês
Conteúdo:  Tillage systems strongly impact nutrient transformations and plant availability. Therefore, the objective of this study was to assess the impacts of conversion of conventional tillage (CT) to no-till (NT) with a mixture of cover crops and green manure as nutrient uptake in a fertilized melon (Cucumis melon) in a semi-arid region of Brazil. Two fields experimental involved randomized blocks design, in a split-plot scheme, with four replication treatments included three types of cover crops and two tillage systems (conventional and no-till). Subsamples of plant cocktails were used to assess the biomass production. Soil samples were analyzed during the melon growth for determination of soil moisture by the frequency domain reflectometry (FDR) probe. Soil solution samples were extracted with ceramic cups from each treatment, and analyzed for determination of TP, Na+, Ca2+, Mg2+, S and NO3-N. Mobility of these elements was assessed in relation to management and different cover crops. The data showed slight or no strong effect of plant cocktails composition on nutrients dynamics in soil under melon. However, without incorporation of biomass and slower decomposition of residue mulch retained on the surface, risks of leaching losses were lower under NT than CT system. A higher concentration of cations in CT (for example, Ca+2 42.07 mg L-1) may be attributed to high soil moisture content and faster rate of mineralization of the biomass incorporated. Concentration of P was higher in t... Mostrar Tudo
Palavras-Chave:  Adubação orgânica; Macronutrientes.
Thesagro:  Caatinga; Cucumis Melo; Fertilidade do solo; Manejo do Solo; Melão; Planta; Plantio Direto; Solo.
Thesaurus NAL:  Soil.
Categoria do assunto:  F Plantas e Produtos de Origem Vegetal
URL:  https://www.alice.cnptia.embrapa.br/alice/bitstream/doc/1043609/1/Vanderlise2016.pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Semiárido (CPATSA)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status
CPATSA55574 - 1UPCAP - DD
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