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Revista Brasileira de Zootecnia
Article . 2004
Data sources: DOAJ
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Valor econômico para componentes do leite no estado do Rio Grande do Sul Economic value for milk components in the state of Rio Grande do Sul, Brazil

Authors: Pedro Renan de Barros Bueno; Paulo Roberto Nogara Rorato; João Walter Dürr; Ernesto Enio Budke Krug;

Valor econômico para componentes do leite no estado do Rio Grande do Sul Economic value for milk components in the state of Rio Grande do Sul, Brazil

Abstract

Com o objetivo de estudar a influência do fator econômico sobre os objetivos de seleção dos animais, foram utilizados dados de produção de um programa de pagamento por qualidade de leite implantado por uma empresa laticinista do estado do Rio Grande do Sul. Os critérios de qualidade do referido programa constavam de teores mínimos de 3,1% de gordura, 2,85% de proteína e no máximo 500.000 unidades de células somáticas. Os dados foram estratificados em três níveis, de acordo com o volume de leite entregue, mensalmente, para a indústria, em função de diferenças significativas em relação aos custos de produção, por litro de leite, decorrentes da escala de produção das propriedades. No nível 1, foram agrupadas as produções das propriedades que entregavam até 1.500 litros de leite/mês, no nível 2, as produções entre 1.501 e 3.000 litros de leite/mês e no nível 3, as produções acima de 3.000 litros de leite/mês. As receitas dos componentes por litro de leite variaram em função da bonificação pelo volume de leite entregue, obtendo maiores valores quanto maior o volume. As despesas definiram o valor econômico para os componentes do leite, em que os custos de produção nos diferentes níveis geraram diferentes funções de lucro. Os valores econômicos (R$) para os componentes foram de -0,4290; -0,1906 e -0,3772 e de -0,0624; 0,0836 e -0,0193 para a gordura e a proteína, respectivamente, nos níveis 1, 2 e 3. O veículo apresentou valor econômico sempre positivo e mais alto que os outros componentes, 0,1964; 0,2093 e 0,2210 para os níveis 1, 2 e 3, respectivamente.In order to study the influence of the economic factor on the objectives used to select the animals, production data of a payment program by milk quality implanted by a milk industry of Rio Grande do Sul were used. The criteria of quality of the referred program consisted of minimum contents of 3.1% of fat, 2.85% of protein and a maximum 500,000 units of somatic cells. The data were stratified in three levels, in agreement with the volume of milk received monthly by the industry from the properties, due to significant differences in relation to the production costs by liters of milk, resulting from the production capacity of the properties. Level 1 included the production of the properties that delivered up to 1,500 liters of milk for month, Level 2, the production between 1,501 and 3,000 liters and Level 3, the ones that delivered above 3,000 liters. The revenues of the components by liter of milk varied due to the allowance received for the volume of milk delivered, obtaining higher values for larger volume. The expenses led to the economic value (R$) for the milk components where production costs in different levels generate different functions of the income. The economic values for the components were of -0.4290; -0.1906 and -0.3772 for fat, -0.0624; 0.0836 and -0.0193 for protein, at levels 1, 2 and 3 respectively; the carrier always presented positive economic value. Also, these values where higher than the other components, showing values 0.1964; 0.2093 and 0.2210 at Levels 1, 2 and 3 respectively.

Keywords

production cost, objetivo de seleção, profit function, selection objective, função de lucro, milk quality, custo de produção, qualidade do leite, SF1-1100, Animal culture

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold