Navegando por Autor "Gameiro, Augusto Hauber"

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Development of a calculation model and production cost index for feedlot beef cattle
(Brazilian Journal of Animal Science, 2018-08-10) Sartorello, Gustavo Lineu; Bastos, João Paulo Sigolo Teixeira; Gameiro, Augusto Hauber
The objective of this study was to develop a feedlot beef cattle calculation model and production cost analysis and, from the results obtained, devise a production cost index. A case study was conducted to understand the characteristics of the productive processes of a commercial feedlot. Then, based on the Economic Theory, cost items of the farm under analysis were identified and transferred to a spreadsheet. The survey included ten feedlot farmers from the state of São Paulo and other nine from the state of Goiás and was carried out to determine representative properties, and prices of items used were monitored. Production costs of each farm were calculated, and theoretical concepts of index numbers were used to devise the feedlot cattle production cost index. The cost allocation scheme was divided into four cost groups: variable, semi-fixed, fixed, and production remuneration factors. The developed model allowed a cost prognosis of the analyzed systems. Highest total costs for São Paulo State feedlots were R$ 9.17 kg−1 and R$ 9.08 kg−1 for average-sized and large farms, respectively, as contrasted to that of Goiás, of R$ 8.29 kg−1. Between the months April and June, the cost of production for feedlot beef cattle showed reductions of 1.48 and 1.40% for the average and large feedlots in the State of São Paulo and 9.13% for the Goiás feedlot by the Konüs Exact Index, respectively. Studies available in literature were compared and it was concluded that the model can help feedlot cattle farmers take production decisions. The Konüs Index allows for a methodological advancement in relation to other studies carried out on the Brazilian livestock industry; besides, it can contribute to the sector organization
Economic gains from croplivestock integration in relation to conventional systems
(Brazilian Journal of Animal Science, 2020-03-16) Mendonça, Gabriela Geraldi; Simili, Flávia Fernanda; Augusto, Jeferson Garcia; Bonacim, Pedro Mielli; Menegatto, Leonardo Sartori; Gameiro, Augusto Hauber
The objective with this study was to calculate the total cost of maize production and beef cattle in permanent pasture activities in separate production systems (conventional) and integrated systems (maize production plus beef cattle), as well as to verify economic gains explained by the economy of scope. The first step for the development of the research was to obtain field experimental data. Six experimental treatments were studied: corn grain production, beef cattle in permanent pasture, and four integrated systems based on different crop and pasture sowings. The second step consisted in the collection, calculation, and allocation of variable and fixed costs to estimate costs of production in the systems. The crop-livestock integration showed economic gains in relation to conventional systems, which can be explained by the dilution of fixed costs and the presence of shareable inputs, resulting in economy of scope. It was also possible to demonstrate that total unit costs of both crop and livestock were lower in crop-livestock integration, showing that integrated systems resulted in economic benefits as compared with conventional ones
Economic performance of highenergy diets and supplementation with chromium propionate or calcium salts of palm oil in ewes’ production
(Brazilian Journal of Animal Science, 2022-11-21) Santos, Fernanda Ferreira dos; Brochine, Luciano; Nacimento, Rafael Araújo; Moreira, Flávia Mallaco; Gameiro, Augusto Hauber; Gallo, Sarita Bonagurio
The experiment aimed to analyze the economic viability of using highenergy diets and the supplementation of chromium propionate or calcium salts of palm oil in the diet of ewes from the late gestation until the end of lactation. Seventy-two ewes of Santa Ines × Dorper crossbreeds were allocated to five treatments: CTL (n = 14) with 100% of NRC recommendation for metabolizable energy per kg dry matter intake (ME/kg DMI), LOW (n = 14) with 90% ME/kg DMI, HIGH (n = 15) with 110% ME/kg DMI, Cr (n = 15) HIGH diet plus chromium propionate, and FAT (n = 14) HIGH diet plus calcium salts of palm oil. Based on the performance data, a short-term analysis was performed for a module of 1000 ewes, evaluating costs, revenues, and profitability, and long-term analysis was performed by an additional cash flow of 120 months. The CTL and FAT treatments were not viable due to higher costs and lower revenues, and they also had a negative net present value (NPV) and internal rate of return (IRR). The LOW treatment, despite lower costs and positive profitability, had a negative NPV (-$872.90) and IRR (1.85%) that was below the discount rate, making it unprofitable in the long run. The HIGH and Cr treatments were considered feasible because they had lower unit costs and higher profitability, in addition to a high NPV ($64,894.11 and 104,902.05, respectively) and a higher IRR (9.03% and 13.65%, respectively) than the discount rate. The use of high-energy diets, with added chromium propionate, promoted better performance and, consequently, better economic return
The economic value of sustainability of the integrated crop-livestock system in relation to conventional systems
(Brazilian Journal of Animal Science, 2023-07-28) Simili, Flávia Fernanda; Mendonça, Gabriela Geraldi; Gameiro, Augusto Hauber; Augusto, Jeferson Garcia; Oliveira, Joyce Graziella; Menegatto, Leonardo Sartori; Santos, David Ferreira Lopes
The objective of this study was to evaluate the potential of improving the economic value of integrated crop-livestock systems (ICLS) compared to conventional systems specialized in monoculture. The experimental area was 16.02 ha, divided into 18 paddocks of 0.89 ha each, organized in a randomized block design, with three replicates and six models of production systems: crop system [corn (Zea mays) grain production], livestock system (beef cattle under grazing conditions), and four ICLS, identified as: ICLS-1, corn integrated with Marandu palisadegrass [Urochloa brizantha (Hoechst. ex A. Rich.) R.D. Webster cv. Marandu (syn. Brachiaria brizantha cv. Marandu] sown simultaneously without herbicide; ICLS-2, corn and Marandu palisadegrass sown simultaneously with herbicide; ICLS-3, corn and Marandu palisadegrass with lagged sowing; and ICLS-4, corn and Marandu palisadegrass sown simultaneously, with herbicide in rows and between-rows of corn. We demonstrated the economic impact analysis combined with the risk optimization and discounted cash flow techniques based on Monte Carlo simulation, considering price and productivity uncertainties. The indicators of added value and return on investment of ICLS had an economic advantage compared with conventional systems. It was also found that ICLS needed a smaller operational area than conventional systems for the economic break-even point. Integrated systems provide lower financial and operational risk levels and greater economic value per hectare compared with conventional systems specialized in monoculture
Meat sheep farming systems according to economic and productive indicators: a case study in Southern Brazil
(Brazilian Journal of Animal Science, 2021-06) Debortoli, Elísio de Camargo; Monteiro, Alda Lúcia Gomes; Gameiro, Augusto Hauber; Saraiva, Livia Cristina Vale Fidalgo
This study aimed to characterize 24 representative sheep production farms from five mesoregions in the state of Paraná, Southern Brazil, so that economic and productive improvement strategies could be proposed. The representative farms for each region were defined at meetings with sheep farmers and technicians via the rapid appraisal methodology and represent 65% of the state’s flock. The information of each representative farm was collected between March 2015 and February 2016. Principal component analysis was used to verify the relationships among the different variables that characterized the farms. These characteristics were: number of ewes (V1), total cost per kilogram of revenue-generating product (V2), feeding costs (V3), labor costs (V4), facility and equipment depreciation costs (V5), and gross margin in the production cycle (V6). Cluster analysis was performed, resulting in three distinct groups: one including eight, another seven, and the third, nine farms. The results aided in classifying the farms into groups with similar characteristics, such as production scale, reproductive efficiency, technical and managerial control, appreciation of cooperatives, and availability of continuous technical assistance. The production scale, reproductive and productive efficiency, adoption of technologies, and cooperative organizational structure can be emphasized as positive performance benchmarks and were the most important aspects to achieve positive economic results.
Nutritional cost reduction and increase profitability in commercial broiler production using phytase superdosing
(Brazilian Journal of Animal Science, 2021-11-03) Nacimento, Rafael Araújo; Pelissari, Paulo Henrique; Moraes, Ulisses Rogério Toccheton de; Gonçalves, Jane Cristina; Wen, Nick; Araújo, Cristiane Soares da Silva; Gameiro, Augusto Hauber; Araújo, Lúcio Francelino
The objective of the present study was to evaluate the reduction of calcium (Ca), crude protein (CP), metabolizable energy (ME), and available phosphorus (aP) in the nutritional matrix of Brazilian commercial broiler diets supplemented with both phytase superdosing (1500 FTU/kg) or conventional doses (500 FTU/kg) on the feed cost and profitability, performance, bone mineralization, and carcass yield of broiler from 1 to 42 d. A total 1200 one-day-old chicks (Cobb 500) were randomly distributed in a commercial feeding program composed of a positive control diet and three diets with reduction of Ca, aP, CP, and ME in the nutritional matrix supplemented with 500, 1000, and 1500 FTU/kg of phytase. The broilers subjected to diets with phytase superdosing presented similar performance, bone ash, and carcass yield, among the treatments. There was a linear effect in the total nutrition cost, gross margin, and estimated net margin per bird with the increase of dietary inclusion of phytase in all purposed scenarios. Thus, for each 500 FTU/kg of dietary phytase included in the diet with reduction of Ca, P, ME, and CP in the nutritional matrix, the total nutrition cost decreased R$ 0.072/bird, R$ 0.079/bird, and R$ 0.081/bird in scenarios of high, medium, and low prices of corn and soybean meal, respectively, that allowed an increase in the estimated net margin of R$ 0.20/bird, R$ 0.22/bird, and R$ 0.22/bird in the same scenarios.
Organic selenium supplementation is cost-effective for increasing the number of seminal doses produced by sexually mature boars
(Brazilian Journal of Animal Science, 2018-03-20) Martins, Simone Maria Massami Kitamura; Afonso, Esther Ramalho; Parazzi, Larissa José; Andrade, André Furugen Cesar de; Leal, Diego Feitosa; Gameiro, Augusto Hauber; Moretti, Aníbal de Sant’Anna; Arruda, Rubens Paes de
The present experiment was carried out to evaluate the economic viability of supplementing boar diets with organic selenium aiming to increase the number of seminal doses of sexually mature boars. Twelve boars were divided into three groups: control group received 0.3 mg kg−1 Se from sodium selenite (n = 4), inorganic group received 0.5 mg kg−1 Se from sodium selenite (n = 4), and organic group received 0.5 mg kg−1 Se from Sel-PlexTM (Alltech, Inc., n = 4). The experiment was conducted within 10 weeks and analysis was performed fortnightly. No interaction was observed between treatments and weeks for any of the variables analyzed. Boars fed diet supplemented with 0.5 mg kg−1 of organic selenium exhibited a 23% increase in the seminal doses, which resulted in a 37% reduction in the cost of diet per dose produced by boars in this group compared with boars in the inorganic group. It should be pointed out that the total revenue produced by the organic group was 26% higher than the inorganic group. The feeding of organic Se increases the number of seminal doses and reduces the average cost of the diet, demonstrating to be cost-effective
A simulation model to evaluate the economic consequences of insemination programs in dairy herds: timed artificial insemination and sex-sorted semen
(Brazilian Journal of Animal Science, 2018-11-17) Ojeda-Rojas, Oscar Alejandro; Gonella-Diaza, Angela Maria; Sá Filho, Manoel Francisco de; Nunes, Rubens; Gameiro, Augusto Hauber
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 information (animal inventory variance, incomes, costs, and cash flow analysis). Based on the obtained cash flow, the payback period, net present value, and internal rate of return were calculated. The payback for AIC, AIS, TAIC, and TAIS occurred in 26, 27, 23, and 25 periods. The net present value and the internal rate of return per year of the investment for AIC, AIS, TAIC, and TAIS were US$ 557773 and 59.44%; US$ 520469 and 54.76%; US$ 741800 and 70.22%; and US$ 662891 and 63.52%, respectively. The mean culling rate over 25 years for AIC, AIS, TAIC, and TAIS was 43.30%, 64.89%, 21.12%, and 36.40%, respectively. The simulation clearly demonstrated the economic and technical benefits of using TAI in dairy herds. These benefits are greater when TAI is used with conventional semen, despite the large investment in technology that is required. Using this mathematical model, future studies could be conducted when the assessment of the technical and economic viability of new scenarios is required
Sustainability indicators for Brazilian dairy livestock: the perception of professionals in the sector
(Brazilian Journal of Animal Science, 2022-03-18) Silva, Mirian Fabiana da; Gameiro, Augusto Hauber
The objective of this study was to analyze the perceptions of professionals in relation to the importance of indicators used to assess the sustainability of Brazilian dairy cattle. A survey method was used through a questionnaire. The target audience was professionals related to dairy cattle: researchers, professors, consultants, farmers, and other professionals. The total number of respondents to the survey was 347. Cluster analysis resulted in the formation of four distinct groups: G1 (“Holistic”), participants agreed that all indicators are very important or, at least, important; G2 (“Technician”) considered the indicators important and desirable, except for some environmental indicators which were assessed as non-priority and expendable; G3 (“Socioenvironmentalist”) assessed the indicators as desirable, but environmental indicators received more importance; and G4 (“Skeptic”) generally believed that indicators were non-priority and expendable. The groups showed significant differences in relation to knowledge about technical, economic, social, and environmental aspects of dairy cattle. More than 60% of professionals consider milk production per area, reproductive index, production costs, profit from the activity, milk quality, quality of life of the producer and employees, succession, protection of water courses, and soil management as very important indicators of the sustainability of dairy cattle. On the other hand, important environmental indicators such as emissions of gases and substances, energy use, nutrient balance, and land use were neglected by most respondents. These results can help select and implement policies and strategies for decision making, aiming at producing milk in a more sustainable way