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 9 publications

(4 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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“…However, when evaluating by phases, it is evident that macauba pulp inclusion improved feed efficiency in finishing phase 2 and that this co-product did not affect any growth parameter during the first three growth phases. In agreement, Dias et al [7] reported that, up to 100 g/kg of inclusion, macauba pulp did not affect the performance and body composition of growing pigs, and Costa Júnior et al [8] reported that the inclusion of 50 g/kg of macauba pulp in finishing pigs' diet improved their feed efficiency.…”

Section: Carcass Ph and Temperaturementioning

confidence: 58%

“…Dias et al [7] reported that up to 100 g/kg of macauba pulp inclusion did not affect growth performance and body composition in growing pigs. In addition, Costa Júnior et al [8] found that up to 103 g/kg of macauba pulp inclusion improved lean meat deposition without affecting the performance of finishing pigs.…”

Section: Introductionmentioning

confidence: 99%

Macauba (Acrocomia aculeata) pulp as an alternative feedstuff in growing-finishing pig nutrition

Moreira

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Traditional feed grains have historically formed the basis of pig diets. However, their limitations in terms of resource availability, cost volatility, and environmental impact have fueled a growing interest in alternative feed sources. In this pursuit, macauba pulp (Acrocomia aculeata), a coproduct of biodiesel production, emerges as a promising candidate that warrants thorough investigation for its potential to revolutionize pig nutrition and production. Thus, our study sought to optimize pig nutrition by strategically incorporating macauba pulp into their diets. Two studies were designed to guide our investigation. In study I, we aimed to evaluate the balance and digestibility of dry matter (DM), crude protein (CP), nitrogen (N), and energy of macauba pulp in finishing pig diets. By understanding the nutritional interaction between this feedstuff and pig digestive processes, we intend to provide valuable insights so that macauba pulp can be used as an alternative ingredient in pig diets. In study II, we investigated the effects of partially replacing corn with macauba pulp on the growth performance, carcass characteristics and pork quality of growing-finishing pigs; and whether differences in residual feed intake breeding values could influence pigs’ growth responses to macauba pulp dietary inclusion. We intended to uncover whether certain genetic backgrounds may synergize more effectively with macauba pulp, potentially opening new avenues for precision feeding strategies. In study I, twenty-four finishing barrows (66.3 ± 0.7 kg BW) were individually housed in suspended metabolism crates allotted in two climatic-controlled rooms. The digestibility assay was conducted in a randomized complete block design, comprising two blocks (climatic-controlled rooms), four dietary treatments, and six replicates per treatment. The reference diet (RD) was a complete corn-soybean meal diet formulated to meet or exceed the nutritional requirements of finishing barrows with high genetic potential with regular- medium performance, while the test diets varied in proportions of RD and macauba pulp: 950 g/kg of RD and 50 g/kg (MAC50), 900 g/kg of RD and 100 g/kg (MAC100), and 850 g/kg of RD and 150 g/kg (MAC150). The 12-day experimental period consisted of a 7-day adaptation period followed by a 5-day quantitative collection period. Urine and fecal materials were collected using the marker-to-marker approach. In study II, a total of 282 (34.8 ± 4.40 kg) pigs (barrows and gilts), progeny of sires with high (HRFI) or low (LRFI) breeding value for residual feed intake, were pair-housed in a 2 × 2 × 2 factorial design based on sex, breeding value, and initial BW. Diets with 50 g/kg of macauba pulp inclusion (macauba) or without (control) were randomly assigned to experimental pens. Thus, eight treatment groups were formed: HRFI barrows fed the control diet; HRFI barrows fed the macauba diet; LRFI barrows fed the control diet; LRFI barrows fed the macauba diet; HRFI female pigs fed the control diet; HRFI female pigs fed the macauba diet; LRFI female pigs fed the control diet; and LRFI female pigs fed the macauba diet. The trial, lasting 90 days, comprised four phases: growing phase 1 (G1), growing phase 2 (G2), finishing phase 1 (F1), and finishing phase 2 (F2). In study I, pigs fed RD had lower (p < 0.01) fecal excretion of DM and CP compared to pigs fed MAC100 and MAC150. Fecal energy excretion was higher (p < 0.01) in macauba fed pigs than in pigs fed RD. Digestible and metabolizable energies in RD were higher (p < 0.01) than in MAC100 and MAC150. The apparent total tract digestibility (ATTD) of dry matter and gross energy was lower (p < 0.01) in MAC50, MAC100, and MAC150 than in RD. The ATTD of protein in pigs fed RD was higher (p < 0.01) than in pigs fed MAC100 and MAC150, although not differing from pigs fed MAC50. Pigs fed RD had lower (p < 0.01) fecal N excretion than pigs fed MAC100 and MAC150 but did not differ from MAC50. The ATTD of N in RD was higher (p < 0.01) than in MAC100 and MAC150 and did not differ from MAC50. The present study indicates that up to 50g/kg macauba pulp can be used in the diets of finishing pigs without affecting the energy partitioning, ATTD of protein, and N utilization. In addition, including macauba pulp in corn-soybean meal based diets lowers the urinary-to-fecal N excretion ratio. In study II, there was no interaction between sex, breeding value, and diet for performance, carcass, and pork traits. Barrows outperformed female pigs in feed intake (ADFI), daily gain (ADG), feed conversion rate (FCR), and final body weight. The breeding value had no effect on performance measurements. The inclusion of macauba pulp in pig diets did not affect any growth parameter during G1, G2 and F1 phases. However, reduced ADFI and improved FCR were observed in F2. Female pigs had lower backfat thickness (BF) and higher loin eye area (LEA) than barrows. HRFI pigs had higher hot carcass weight, LEA, and lower BF than LRFI pigs. There was no effect of macauba pulp inclusion on carcass traits. Pork from barrows presented lower Warner–Bratzler shear force and higher fat content than pork from females. There was no effect of breeding value on pork traits. Pork from pigs fed the macauba diet showed lower moisture content and water-holding capacity but tenderness and color was not affected by this substitution. In conclusion, the inclusion of 50 g/kg of macauba pulp in the pigs’ diets did not affect any growth parameter during G1, G2 and F1 phases. However, reduced average daily feed intake and improved feed conversion rate were observed in F2. Regardless of sex and breeding value for RFI, pigs responded similarly to macauba pulp inclusion in their diets. Keywords: Swine; Biofuels coproducts; Feed efficiency; Palm; Alternative feedstuff.

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Torta da polpa da macaúba para suínos em terminação

Cited by 9 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

Macauba (Acrocomia aculeata) pulp as an alternative feedstuff in growing-finishing pig nutrition

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