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Registros recuperados: 4
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A simulation model to evaluate the economic consequences of insemination programs in dairy herds: timed artificial insemination and sex-sorted semen R. Bras. Zootec.
Ojeda-Rojas,Oscar Alejandro; Gonella-Diaza,Angela Maria; Sá Filho,Manoel Francisco de; Nunes,Rubens; Gameiro,Augusto Hauber.
ABSTRACT The objective of this study was to develop a simulation model to analyse the technical, economic, and financial performance of using different reproductive strategies in dairy herds. Strategies simulated were: artificial insemination (AI) using conventional semen after oestrus detection (AIC), AI using sex-sorted semen after oestrus detection (AIS), timed artificial insemination (TAI) using conventional semen (TAIC), and TAI using sex-sorted semen (TAIS). The total time horizon analysed corresponded to 25 years, divided into 425 periods of 21 days. The model simulates the biological cycle that takes place within the bovine herd, and uses input information (productive parameters, investments, and reproductive program) to calculate output...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Herd management; Internal rate of return; Net present value; Payback; Reproduction performance.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100710
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Room for manoeuvre in time of the workforce in dairy production systems R. Bras. Zootec.
Santos Filho,Joel Carneiro dos; Hostiou,Nathalie; Damasceno,Julio César; Dedieu,Benoît.
The objective of this study was to characterize and to analyze the room for manoeuvre in time in dairy production systems (DPS). Two interviews were conducted in twenty DPS in the Northern region of Paraná, Brazil, with the following objectives: to know the management and practices involving the herd, the land area and the commercialization; and to qualify and evaluate the work organization. In order to build the variables, the repertory grid method was used, and for the typology, the graphic methodology of Bertin adapted to small samples was used. The results showed that the room for manoeuvre in time of the DPS, quantified in hours available per year, varied between the farmers and was related to routine work and seasonal work durations, as well as the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agriculture work; Dairy activity; Herd management; Labor; Production system; Work organization.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012001200010
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Sistema para auxiliar o manejo de rebanhos leiteiros e a tomada de decisões. Infoteca-e
OLIVEIRA, S. R. de M.; COSTA, C. N.; SABADINI, C. C..
Efeitos da globalização e da era da informação. Manejo dos rebanhos e registros de desempenho. Programas de seleção e gerência da informação. Proleite - Sistema da acompanhamento e avaliação de rebanhos leiteiros.
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Proleite; Tecnologia da informação; Manejo de rebanho; Controle leiteiro; Herd management; Milk recording; Information technology.
Ano: 1999 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/7356
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The New Economics of Livestock Production Management AgEcon
Hubbs, Todd; Preckel, Paul V.; Schinckel, Allan P.; Deen, John; Foster, Kenneth A.; Curtis, Stanley E.; Johnson, E. Wayne.
The importance of heterogeneity of animal attributes in livestock production is assessed. Preliminary results indicate that variance and skew measures of attributes may be becoming more important over time.
Tipo: Conference Paper or Presentation Palavras-chave: Livestock economics; Herd management; Livestock marketing; Livestock Production/Industries; Marketing.
Ano: 2008 URL: http://purl.umn.edu/6146
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