Browsing by Author "Chetroiu, Rodica"

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    Determinarea funcţiilor economice restrictive şi a tendinţelor de evoluţie a sistemelor agricole în regiunea Sud-Est a României
    (IEFS, 2012) Iurchevici, Lidia; Chetroiu, Rodica
    The purpose of the work is to determine the development trend of the agricultural activities in South-Eastern Region of Romania, in order to improve the plant and animal systems efficiency. To elucidate these systems trends in territorial profile, has been used the regression function method or least squares method, represented graphically by the line (curve) of regression. This is expressed as an analytic function appropriate to the link between factorial feature and outcome. In relation to the approximating function shape F (x) can be applied several types of regression: polynomial, exponential, logarithmic, hyperbolic etc. If the approximation polynomial has degree p = 1, the criterion of least squares application leads to linear regression: F(x) = a + bx. If the approximation polynomial has degree p = 2, applying the least squares criterion leads to the quadratic regression: F (x) = a + bx + cx2. The practical results of applying statistical and mathematical presented methods are reflected in the analysis of agricultural systems in South-Eastern Region, during 2000-2010, and graphic projecting of their trends (forecasts) in the region studied, by the year 2021.
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    Evoluţia indicatorilor de agro-mediu în regiunea Sud-Muntenia
    (IEFS, 2012) Chetroiu, Rodica; Iurchevici, Lidia
    The South - Muntenia Region is situated in the South-East of Romania, bordering at North with Central Region, at East with South – East Region, at South with Bulgaria, the limit being given by the natural boundary - the Danube river, and at West with South – West Region. The South - Muntenia Region is composed of: seven counties (Arges, Calarasi, Dambovita, Ialomita, Giurgiu, Prahova and Teleorman), 16 municipalities, 32 cities and 519 communes with 2019 villages. The agricultural area, mainly concentrated in the southern counties, holds 71.1% of the total region area, of which 80.2% is arable land. The work studies the evolution, during 2000 - 2010, of the following agri-environment indicators specific of the agriculture in the South - Muntenia Region: irrigated area, surface with drainage works, area furnished for land improvement and soil erosion prevention, surface with fertilizers on, quantity of fertilizers, surface with pesticides on, quantity of pesticides. The agricultural area furnished for irrigation, the land prepared with drainage works and area furnished for land improvement and soil erosion prevention were maintained almost constant during the analyzed period. The drainage work marks a leap in 2001 compared to 2000, remaining at that value thereafter. Have increased quantities of chemical fertilizers and the natural ones marked a decrease both overall and in the private sector.
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    Furajarea puilor de carne-hibrid ross 308. Eficienţa economică
    (IEFS, 2011) Iurchevici, Lidia; Chetroiu, Rodica
    Should be known in the growth of broilers breed standard requires their feeding in a certain way to achieve high performance at slaughter. Three ways of feeding are performed: - starter feeding (0-10 days) where the requirements of broilers in this period can be provided with a combined feed with the following structure: 53.5% corn, 31% soybean meal, 7%sunflower meal, 5% fish meal, 0.25 %D.L. methionine, 1.2% calcium carbonate, 0.3% salt, 1% vitamin-mineral premix. - growth feeding is administered generally for 14-16 days with following feed: 55.15% maize, 28% soybean meal, 7% sunflower meal, 5% fish meal, 0.15% D.L. methionine, 1.2% calcium carbonate, 0.8% monocalcium phosphate, 0.3% salt, 1% vitamin-mineral premix. - finishing feeding, the period starting with approximately 25 days, requiring a higher energy level, with the next structure of combined feed: 56.85% corn, 30.5% soybean meal, sunflower meal 7%, 2% oil, 0.15% D.L. methionine, 1.4% calcium carbonate, 0.8% monocalcium phosphate, 0.3% salt, 1% vitamin-mineral premix. These structures of combined fodder finally lead to obtain broilers that reach weights of about 2.5 kg in just 6 weeks and production costs to ensure encouraging profits.
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    Milk and meat market between 2015-2020 - a swot analysis
    (INCE, 2022) Chetroiu, Rodica; Marin, Ancuta
    Market information is an important tool to respond to changes in the economic environment and to identify potential domestic and export market opportunities, helping producers, traders and processors to know market requirements and consumer preferences. The SWOT analysis used in the paper as a research method is based on the results of a series of technical-economic analysis, statistics and market information, which led to highlighting the strengths, weaknesses, opportunities and risks of the cow's milk market and of beef, sheep, pork and poultry market from Romania. Thus, the Romanian agri-food sector was characterized by a low integration of participants in the agri-food supply chains. The Romanian animal products market is dominated by imported products, at lower sales prices, which makes that the products of Romanian farmers do no longer find their place in the stores, as higher domestic costs lead to higher prices, discouraging autochthonous producer. But the recovery of trust in Romanian products has already taken place by consumer. There is now a need to regain trust between producers, to create production, distribution and marketing chains, to create markets that will also receive quality products from Romanian farmers.
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    Research on the capitalizing of mountain area resources in beef production
    (INCE, 2022) Chetroiu, Rodica; Marin, Ancuta
    The present study presents the average economic results for the period 2018-2020 of six case studies conducted in beef cattle farms of different sizes, located in mountainous counties. From the farm size point of view, it is between 8 - 280 heads of fattened cattle, with an average of 115.67 heads and an average production of 443.73 kg / head. The average value of the unit cost was 10.43 lei / kg live, and the average profit was 0.31 lei / kg live, with a minimum of -1.30 lei / kg live and a maximum of 1.49 lei / kg live. The average taxable income rate was 3.76%, with a minimum of -9.05% and a maximum of 13.49%. The average profitability threshold in physical units resulting from the analyzes included in the case studies is 383.6 kg live/head, and the average profitability threshold in value units is 4074.7 lei/head. Research results indicate that the efficient use of agricultural resources in the mountain area can lead to favorable economic results. Studiul de față prezintă rezultatele economice medii pe perioada 2018-2020 a șase studii de caz efectuate în ferme de taurine pentru carne de diferite mărimi, aflate în județe din zona montană. Din punct de vedere al mărimii fermelor, aceasta este cuprinsă între 8 - 280 capete taurine la îngrășat, cu o medie de 115,67 capete și cu o producție medie de 443,73 kg/cap. Valoarea medie a costului unitar a fost de 10,43 lei/kg în viu, iar profitul mediu a fost de 0,31 lei/kg în viu, cu un minim de -1,30 lei/kg în viu și un maxim de 1,49 lei/kg în viu. Rata medie a venitului impozabil a fost de 3,76%, cu un minim de -9,05% și un maxim de 13,49%. Pragul mediu de rentabilitate în unități fizice rezultat în urma analizelor din studiile de caz este de 383,6 kg în viu/cap, iar pragul mediu de rentabilitate în unități valorice este de 4.074,7 lei/cap. Rezultatele cercetărilor indică faptul că utilizarea eficientă a resurselor agricole din zona montană poate conduce la obținerea de rezultate economice favorabile.