Avaliação econômica da terminação de bovinos de corte em pastagem irrigada

Soares, Jpg; Barcellos, Júlio Otávio Jardim; Filho, L.A.V. Queiroz; Oaigen, Ricardo Pedroso; Canozzi, Maria Eugênia Andrighetto; Camargo, Cláudia Medeiros; Drumond, Luís César Dias; Neto, José Braccini

doi:10.1590/1678-4162-7340

Cited by 7 publications

(7 citation statements)

References 12 publications

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“…The average fixed cost and total fixed cost in each treatment and region using an IL of 125% of ETo were R$ 2,737.39 and R$ 2,812.71 ha -1 in Santiago and Santa Maria, respectively (Figure 2). These costs are higher than those found by Soares et al (2015), whereby the total cost of three different irrigated production systems was R$ 1,626.93, R$ 2,004.86, and R$ 2,101.59 ha -1 .…”

Section: Figurecontrasting

confidence: 54%

“…Moreover, this technique may reduce the effects of water scarcity by guaranteeing high forage yields (OLIVEIRA et al, 2015;KIRCHNER et al, 2017;KOETZ et al, 2017). Although irrigation may improve livestock production systems, the economic analysis of irrigation is essential to assess its sustainability, and high yields are necessary to ensure the viability of the investment (SOARES et al, 2015). In this respect, the analysis of production costs helps farmers plan investments, optimize the invested capital, and maximize profits (RICHETTI, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Economic of the irrigated production of forage millet

Torres

Peiter

Robaina

et al. 2019

SCA

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Irrigation is an agricultural technique that increases crop yield and reduces periods of forage shortage. However, this technique increases production costs, and the process is economically viable only when costs are lower than the financial return. Determining the technical and financial viability of irrigation is essential to assess the feasibility of forage production systems. Therefore, the objective of this study was to determine the technical and financial viability of irrigated producing of forage millet in different growing seasons in two microregions of the state of Rio Grande do Sul, Brazil. The water requirements of the growing seasons of 2012 to 2017 in the microregions of Santiago and Santa Maria varied and affected the cost of irrigation. The irrigated production of forage millet increased the total average cost by 13.42% and increased the financial return by 43.03% and 22.49% in Santiago and Santa Maria, respectively.A irrigação é uma técnica que visa garantir altos rendimentos e reduzir períodos de escassez forrageira. Com a inclusão desta técnica, há um incremento no custo de produção, devendo este ser inferior aos rendimentos decorrentes de sua utilização para garantir a opção pelo uso. A determinação da viabilidade técnica e financeira da utilização da irrigação é imprescindível para avaliar os sistemas produtivos 1 Parte da tese de doutorado do primeiro autor.forrageiros. Dessa forma, o objetivo deste trabalho foi determinar a viabilidade técnica e financeira do uso da irrigação, na produção de forragem de milheto, para diferentes safras agrícolas e em duas microregiões do Estado do Rio Grande do Sul. Verificou-se que as demandas hídricas das diferentes cinco safras agrícolas 2012-2017, para as microrregiões de Santiago e Santa Maria são variáveis e influenciam nos custos da irrigação. A inclusão da irrigação na produção de forragem de milheto aumentou o custo total, em média, em 13,42%, porém proporcionou aumento do retorno econômico de 43,03% e 22,49% para as respectivas microrregiões. Palavras-chave: Estimativa de ganho animal. Custo de produção. Aspersão convencional fixa. Pennisetum americanum L.

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Section: Figurecontrasting

confidence: 54%

Section: Introductionmentioning

confidence: 99%

Economic of the irrigated production of forage millet

Torres

Peiter

Robaina

et al. 2019

SCA

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“…Irrigation also contributes to increasing forage quality and availability, which provides the increase in beef-cattle production profitability, through weight gain and the reduction of days to slaughter, reflecting on the meat final quality (Soares et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Economic Viability of Conventional Sprinkler Irrigation in Sudan Grass Production for Beef Cattle

Mezzomo

Peiter

Robaina

et al. 2020

JAS

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The supplementary irrigation is an alternative to ensure forage production and quality in periods with irregular rainfall, however, is necessary to know the irrigation economic viability in order to maximize profits. The study was performed in Santa Maria, Rio Grande do Sul State in southern Brazil, during 2015/2016 and 2016/2017 agricultural years, aiming to evaluate the sudan grass economic viability under different irrigation depths, in order to define which irrigation depth (0, 25, 50, 75, 100 and 125% of the reference evapotranspiration-ETo) has the highest net revenue. Forage production functions were generated and allowed to establish the carrying capacity and production costs related to each applied irrigation depth. The forage supply was 4% of the liveweight, animals with 300 kg were considered, and average daily liveweight (LW) gains of 0.5, 1.0 and 1.5 kg LW day-1 were simulated for the conversion of dry mass production in liveweight gain per hectare. Gross revenue was determined considering the price of R$ 6.50 per kilogram of liveweight. The production costs were divided into fixed and variable, related and not related to irrigation. The conventional sprinkler irrigation was economically viable for the sudan grass cultivation for beef cattle production, with the highest net revenue for the irrigation depth of 100% of ETo, in both years. However, the animals feed conversion is the determinant factor in net revenue because it represents the greatest profits variation source.

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“…Recentemente, o uso crescente de tecnologias de intensificação da produção tem permitido aumentar a produtividade na bovinocultura, dependente de técnicas que melhorem o principal recurso alimentar utilizado no País -as pastagens (SOARES et al, 2015). Dentre essas técnicas, a irrigação de pastagens é algo promissor, aumentando a disponibilidade de água nos períodos de estiagens curtas ou longas, quando as plantas forrageiras apresentam acentuada estacionalidade, o que se reflete na produção pecuária (MOCHEL FILHO et al, 2016).…”

Section: Irrigação De Pastagensunclassified

“…Nos últimos anos, o uso crescente de tecnologias tem permitido aumentar a produtividade na bovinocultura, dependente de técnicas que melhorem o principal recurso alimentar -as pastagens (SOARES et al, 2015). Em clima que favorece o crescimento das mesmas, a chave para produção de ruminantes está na dieta proveniente de forrageiras, sob pastejo ou cultivadas para armazenamento e uso posterior (MORRIS; .…”

Section: Introductionunclassified

Coeficiente de cultura (Kc) e correlações de consumo de água, fatores produtivos e biométricos de gramíneas tropicais em cultivo exclusivo e em sobressemeadura com forrageiras de inverno

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Cultivation coefficient (Kc) and water consumption, productive and biometric factors of tropical grasses in exclusive cultivation and overseeding with winter forages Pastures represent the largest part of the agricultural area and contribute to the second and fifth activities that make up the Brazilian GPD, meat and milk. The increasing use of pasture irrigation primarily arose in dairy areas, along with processes that improve the production, and subsequently reache areas of beef cattle. Thus, there is a need for an adequate irrigation management, and it is fundamental to know the crop evapotranspiration of pastures, their productive limits and their characteristics in this intensification process. Therefore, this work aimed to determine the crop water consumption, the values of crop coefficient (Kc), and the productive and biometric parameters of two tropical grasses (Panicum maximum cv. 'Mombasa' and Cynodon spp.) single cropped and intercropped in oversseeding with black oats and ryegrass. As secondary goals, it sought: (i) measuring the biometric parameters of forage canopy height (ADF) and leaf area index (LAI) between the cycles, identifying the best cutting period; (ii) estimating the mean accumulation of degree-days of development (GDD) in the different seasons, correlating them with forage growth; (iii) estimating the crop water consumption with the FDR probe Diviner 2000® and correlating its data with the crop water consumption measured on weighing lysimeters. The study was carried out at the "Luiz de Queiroz" College of Agriculture (ESALQ/USP), at Piracicaba, SP (Latitude 22°42'14"S; Longitude 47°37'24"W; Altitude de 569 m a.s.l.). The experiments were conducted from March 2015 to February 2017, with a randomized complete block design with 4 treatments: 1-single cropped 'Mombasa guinea grass ; 2-'Mombasa' guinea grass intercropped with oats and ryegrass; 3-single cropped Cynodon spp.; 4-Cynodon spp. intercropped with oats and ryegrass. The winter forages were black oats (Avena strigosa) cv. Embrapa 29 (Garoa) and ryegrass (Lolium multiflorum) cv. Fepagro São Gabriel. The calibrations of the lysimeters and the FDR probe had good adjustments, with high correlation coefficients. The results obtained of crop water consumption by the grasses showed a great variation by period and inside the growing cycles with great water consumption, often obtaining Kc values above 1. Good correlations were obtained between crop growth, LAI and degrees-days accumulation (GDD). The accumulated values of crop coefficient (Kc) were higher with the FDR sensor than with the lysimeters. The detailed results can be found in the chapters of this work.

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Avaliação econômica da terminação de bovinos de corte em pastagem irrigada

Cited by 7 publications

References 12 publications

Economic of the irrigated production of forage millet

Economic of the irrigated production of forage millet

Economic Viability of Conventional Sprinkler Irrigation in Sudan Grass Production for Beef Cattle

Coeficiente de cultura (Kc) e correlações de consumo de água, fatores produtivos e biométricos de gramíneas tropicais em cultivo exclusivo e em sobressemeadura com forrageiras de inverno

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