Torta da polpa da macaúba para suínos em terminação

Costa, Martolino Barbosa; Arouca, Cláudio Luiz Corrêa; Maciel, Mônica Patrícia; Aiuri, Felipe Shindy; Fontes, Dalton de Oliveira; Rosa, Bruno Oliver; Lima, C.; Fernandes, I. S.

doi:10.1590/s1519-99402015000200008

Cited by 8 publications

(2 citation statements)

References 7 publications

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“…According to the literature, MS is a very advantageous food containing protein, fiber, and energy, which results in an increase in milk production by cows. The use of MS has also been reported in the feeding of other animals, such as fish, pigs, and chickens, resulting in a positive impact on animal nutrition 5‐7 …”

Section: Introductionmentioning

confidence: 99%

Approaches on PCL/macaíba biocomposites ‐ mechanical, thermal, morphological properties and crystallization kinetics

Siqueira

Luna

Araújo

et al. 2021

Polymers for Advanced Techs

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Biocomposites based on macaíba shell (MS) and Polycaprolactone (PCL) were melting processed in this work; seeking better compatibility between PCL, MS was chemically treated with maleic anhydride (MA) and sodium hydroxide (NaOH), in addition, PCL‐g‐MA was used as compatibilizer. The biocomposites' performance was evaluated through Fourier transform infrared (FTIR), thermogravimetry (TG), contact angle, water absorption, scanning electron microscopy (SEM), the tensile experiments were executed according to ASTM D638 and the nonisothermal crystallization kinetics was performed from differential scanning calorimetry (DSC) scans using Pseudo‐Avrami, Ozawa, and Mo models. Chemical treated and compatibilized biocomposites presented better tensile behavior with no significant changes in the thermal stability. Higher HDT was verified on PCL/MS biocompounds due to the MS hardening effect, whereas higher contact angle and water absorption were computed for PCL/MS most due to new ways origin for the water get in as provided by MS. Related to crystallization kinetics Ozawa as displayed in the Appendix S1 failed to fit PCL/MS kinetics whereas Pseudo‐Avrami and Momay be safely used form processing purposes. Summing up, PCL/MS biocomposites were carefully investigated and gathered information may be promptly used in sundry applications as well as be added to the literature database.

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Section: Introductionmentioning

confidence: 99%

Approaches on PCL/macaíba biocomposites ‐ mechanical, thermal, morphological properties and crystallization kinetics

Siqueira

Luna

Araújo

et al. 2021

Polymers for Advanced Techs

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“…A suinocultura no Brasil é uma atividade que se encontra em intenso desenvolvimento, e o desempenho zootécnico dos suínos apresentou melhoras nas últimas décadas, principalmente no número de suínos abatidos/porca/ano, possibilitando à indústria suinícola notável potencial para fornecer ao mercado consumidor fontes proteicas saudáveis a um baixo custo (COSTA JUNIOR et al 2015). Entretanto, diversos fatores extrínsecos, como o clima, influenciam de forma negativa no sistema produtivo, devido à dificuldade que os suínos possuem em dissipar calor.…”

Section: Introductionunclassified

Alterações fisiológicas de matrizes suínas criadas nas condições climáticas do semiárido mineiro

Soares

Carvalho

Maranhão

et al. 2017

Rev. Ciên. Agrovet.

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Universidade Estadual de Montes Claros, Montes Claros, MG, Brasil. * Autor para correspondência RESUMO A criação de suínos na região do semiárido mineiro possui caráter inicial, porém há perspectivas de crescimento, entretanto devido às altas temperaturas verificadas ao longo do ano a produção é reduzida. Diante disso, o objetivo deste trabalho foi avaliar o efeito do ambiente climático sobre os parâmetros fisiológicos de matrizes suínas antes e após o parto. O experimento foi conduzido em uma Granja representativa na criação de suínos localizada na região do Projeto Gorutuba, município de Nova Porteirinha, MG. Foram utilizadas seis matrizes alojadas em baias individuais. As variáveis climáticas temperatura de ar, umidade relativa do ar, temperatura de ponto de orvalho e temperatura de globo negro foram monitoradas por meio do uso de dois dataloggers. Os parâmetros fisiológicos avaliados foram: temperatura de superfície corporal, frequência respiratória, frequência cardíaca e temperatura retal. As variáveis ambientais e fisiológicas foram coletadas às 8:00, 11:00, 13:00, 15:00 e 17:00 h. Os dados foram submetidos à análise de variância, e quando significativos foram submetidos ao teste de Tukey a 5% de probabilidade para comparação entre as médias. De posse dos dados coletados verificou-se que entre às 13:00 h e 17:00 h e durante o período após o parto os animais ficaram expostos ao ambiente de desconforto térmico sendo este o fator responsável pela alteração na frequência respiratória, principalmente quando associado à ingestão de alimentos. Os valores médios (p<0,05) de temperatura de superfície corporal e retal foram superiores no período após o parto, porém não expressaram desconforto térmico das matrizes suínas. A criação desses animais na região do semiárido mineiro é possível, porém é necessário que sejam adotadas medidas como o uso de ventiladores e manejo de cortinas para minimizar o estresse calórico dos animais. PALAVRAS-CHAVE:ambiência, conforto térmico, suinocultura. ABSTRACTThe swine breeding in the Minas Gerais semiarid has an initial characterization, but there are prospects for growth, however due to the high temperatures verified throughout the year, production is reduced. Therefore, the objective of this work was to evaluate the effect of the climatic environment on the physiological parameters of swine matrices before and after farrowing. The experiment was carried out in a representative swine breeding farm located in the region of the Gorutuba Project, in Nova Porteirinha city, MG. Six swine matrices housed in individual bays were used. The climatic variables, air temperature, relative air humidity, dew point temperature and black globe temperature were monitored through the use of two dataloggers. The physiological parameters evaluated were: body surface temperature, respiratory rate, heart rate and rectal temperature. The environmental and physiological variables were collected at 8am, 11am, 01pm, 03pm and 05pm. Data was submitted to analysis of variance, and when...

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Life cycle analysis of macauba palm cultivation: A promising crop for biofuel production

Fernández-Coppel

Evaristo

Corrêa-Guimarães

et al. 2018

Industrial Crops and Products

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The 450 Scenario, which limits the increase in global average temperature to 2 ºC, makes it necessary to take steps towards a low-carbon economy. Since the energy sector is a major contribution to anthropogenic greenhouse gas (GHG) emissions, the production of biofuels can play a key role in strategies aimed at climate change mitigation. In this regard, the oil derived from macauba palm (Acrocomia aculeata), mainly constituted of saturated organic chains, has been claimed to hold promise for the production of liquid fuels. The high potential yield, diversity of co-products and various positive features of this emerging energy crop make it an interesting option both from a social and an environmental point of view. Nonetheless, a full environmental evaluation is still missing. In the study presented herein, the impacts produced in its plantation, cultivation and harvesting phases and the associated cumulative energy demand P r e p r i n t 2 have been determined using a life cycle analysis methodology, in addition to shedding some light on its GHG intensity relative to the other energy crops it can displace. Excluding land use changes and biogenic CO 2 fixed by the crop, it was concluded that to produce one ton of macauba fruit in Brazil, the system would absorb 1810.21 MJ, with GHG emissions of 158.69 kg CO 2 eq in the 20-year timeframe, and of 140.04 kg CO 2 eq in the 100-year timeframe (comparable to those of African oil palm). Damage to human health, ecosystem quality, and resources would add up to 16 Pt•t-1 according to Eco-indicator 99 methodology. In order to account for the uncertainty derived from improvement and domestication programs, which should affect current production levels, a sensitivity analysis for different productivities was performed. In all analyses, fertilization was found to be responsible for ca. 90% of the impacts, and hence special attention should be paid to the development of alternative fertilizer management schemes.

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Torta da polpa da macaúba para suínos em terminação

Cited by 8 publications

References 7 publications

Approaches on PCL/macaíba biocomposites ‐ mechanical, thermal, morphological properties and crystallization kinetics

Approaches on PCL/macaíba biocomposites ‐ mechanical, thermal, morphological properties and crystallization kinetics

Alterações fisiológicas de matrizes suínas criadas nas condições climáticas do semiárido mineiro

Life cycle analysis of macauba palm cultivation: A promising crop for biofuel production

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