Desempenho bioeconômico de sistemas intensivos de cria e de ciclo completo por meio de simulação

Santana, Ronan Aparecido Valadares; Barbosa, Fabiano Alvim; Mandarino, Raphael Amazonas; Lobo, C.F.

doi:10.1590/s0102-09352013000600027

Cited by 6 publications

(4 citation statements)

References 4 publications

(3 reference statements)

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“…Fixed operating cos was considered that which did not vary according to the level of production and VOC, the opposite. Total operational cost was the sum of VOC + FOC and the total cost was TOC plus the opportunity cost (Barbosa and Souza, 2007;Barbosa et al, 2010;Santana et al, 2013). The revenues of activity were composed of the sales of lambs (R$450.00), lamb sales intended for slaughter, and sale of disposal animals (ewe).…”

Section: Methodsmentioning

confidence: 99%

“…The profit was the subtraction of revenue from TC. The profitability was the net margin divided by revenue and return net margin divided by the total investment (Barbosa and Souza, 2007;Barbosa et al, 2010;Santana et al, 2013). Cash flow was accomplished by deducting the expenditures from the revenue (TOC − depreciation), which resulted in the balance that is fixed every year by the interest rate of 6% per annum (Barbosa and Souza, 2007).…”

Section: Methodsmentioning

confidence: 99%

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Economic analysis, performance, and feed efficiency in feedlot lambs

et al. 2017

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The objective of this study was to evaluate residual feed intake (RFI), residual intake and body weight gain (RIG) and their relationship with other traits of efficiency, performance, and economic analysis of sheep. Lambs (n = 102) were evaluated during 56 days and a herd consisting of 500 ewes was simulated with the mean of dry matter intake (DMI) and final body weight of the lambs, the same as that of the experimental lambs. The lambs were fed hay-based diet of Tifton 85 (Cynodon spp.), corn, and soybean in the voluminous:concentrate ratio of 35:65. Residual feed intake and RIG were correlated with DMI, feed conversion ratio, and feed efficiency. Residual intake and body weight gain were positively correlated with average daily gain, relative growth rate, and Kleiber's rate. The most efficient production systems (lower RFI and higher RIG) had lower costs and higher profit margins. The net present value (NPV) and internal rate of return (IRR) were higher in systems with more efficient lambs. In systems with less efficient lambs, NPV and IRR were negative and lower, respectively. Efficient animals for RFI and RIG showed satisfactory performance and better economic results.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Economic analysis, performance, and feed efficiency in feedlot lambs

et al. 2017

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“…The representation was higher for animals (64.61%), dietary supplements (12.33%), and depreciation (5.22%). The intensive nature of the production system shows that the depreciation of machinery, improvements, pastures, and crops accounted for 5.22% of the total cost, i.e., a small percentage when compared with the cow-calf farms and whole production farms, being 28.1%, 27.1%, and 18.8%, 20.1% for the following systems: cow-calf farms with animals from crossbreeding (Zebu vs Angus) and Zebu breed, whole production farm of animals from crossbreeding (Zebu vs Angus), and Zebu breed, respectively (Santana et al 2013). …”

Section: Resultsmentioning

confidence: 99%

Risk analysis and probability of return on invested capital in an intensive beef cattle production system in Minas Gerais, Brazil

Santana¹,

Barbosa

Andrade

et al. 2016

R. Bras. Zootec.

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-The study evaluated the average return on invested capital (ROIC) in function of the variations in the historical prices of beef cattle and the odds of return on that capital gain within the system of beef cattle fattening on a farm in the state of Minas Gerais, Brazil, from 2004 to 2007. To calculate the risk of ROIC, monthly data of beef cattle prices (BM&F) were used from July 1997 to December 2013, revised by the General Price Index of the Fundação Getúlio Vargas in December 2013. The corrected data were divided into five classes that correspond to the risk scenarios. In light of these classes, the observed frequencies and their respective probabilities were calculated. The cumulative and updated ROIC were -3.02 and 0.24%, respectively. The odds for obtaining returns above 8.4% (Brazilian Selic Rate) per year were median, corresponding to 32.0 and 34.94% for the calculation of operating profit (ROIC OP) and total profit (ROIC TP), respectively. The expected average annual return was 6.26 and 7.66% for ROIC OP and ROIC TP, respectively. The standard deviation and coefficient of variation showed a high risk of ROIC because the scale and extent of dispersion per unit of expected return were elevated in the accumulation period and the risk for 2013 was reduced according to the price of beef cattle. The expected risk of ROIC was considered high between 2004 and 2007 and average for 2013. The probability of return on capital invested in the intensification of fattening beef cattle is a function of the selling price of cattle and purchase of inputs, in which the high scenario ranching provides greater probability of getting a return above the bank interest rates.

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“…Different crosses between Bos taurus taurus and Bos taurus indicus generate positive results for the efficiency of a production system, mainly in terms of carcass weight, yield of meat cuts, and meat tenderness (Barcellos et al, 2017). Santana et al (2013) described economic gains from the use of crosses in bioeconomic simulations with full-cycle and pre-weaning systems.…”

Section: Introductionmentioning

confidence: 99%

Use of crosses for sustainability in livestock farming in the Brazilian Meio-Norte region

Afonso¹,

Carvalho²,

Hadlich³

et al. 2020

Revista Brasileira De Zootecnia

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This study evaluated different crosses for sustainable beef production in the Meio-Norte, Brazil. Thirty-four cattle [seven Curraleiro Pé-duro (CPD), six Nellore (NEL), seven F1 (½ NEL + ½ CPD), seven F2A (¼ CPD + ¼ NEL + ½ Angus), and seven F2S (¼ CPD + ¼ NEL + ½ Senepol)] were evaluated on natural pastures in the states of Piauí and Maranhão. The animals were weighed at birth (BW); weaning (WW); 12 (W12), 18 (W18), and 24 months (W24); and slaughter (SW). The morphometric measurements of rump height (RH), withers height (WH), body length (BW), and heart girth (HG) were assessed. Hot carcass weight (HCW), cold carcass weight (CCW), loin-eye area (LEA), backfat thickness (BFT), carcass dressing percentage (DP), water-holding capacity (WHC), cooking loss (CL), shear force (SF), pH, meat color (L*M, a*M, and b*M), and fat color (L*F, a*F, and b*F) were also analyzed. The three-cross animals (F2A and F2S) showed heavier weights from weaning to slaughter as well as higher HCW and CCW. The three-cross cattle produced less methane per kg of meat. The lack of differences between the NEL, F1, F2A, and F2S animals indicates that crossbreeding did not increase their size, which could be detrimental to reproductive efficiency. Loin-eye area, BFT, and DP differed between the genetic groups, with the highest LEA obtained by F2A. Backfat thickness and DP were low in all animals, suggesting a need for increased carcass fatness. Water-holding capacity, CL, SF, pH, a*F, b*F, L*M, and a*M did not differ; therefore, crossbreeding did not affect qualitative or visual aspects of meat and fat. The use of crosses in meat production systems in the Meio-Norte region of Brazil is a viable option to improve sustainability. In this respect, three-cross animals have the best performance.

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Desempenho bioeconômico de sistemas intensivos de cria e de ciclo completo por meio de simulação

Cited by 6 publications

References 4 publications

Economic analysis, performance, and feed efficiency in feedlot lambs

Economic analysis, performance, and feed efficiency in feedlot lambs

Risk analysis and probability of return on invested capital in an intensive beef cattle production system in Minas Gerais, Brazil

Use of crosses for sustainability in livestock farming in the Brazilian Meio-Norte region

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