RESUMO

Biological data on development of Hermetia illucens (Linnaeus, 1758) is useful to calculate the postmortem interval (PMI), thus being important for solving crimes. We aimed at gathering bionomic information on H. illucens, during the decomposition of a Sus scrofa, in the urban zone of Manaus, Amazonas State. Mature females and eggs were collected on the swine carcass. After hatching under natural conditions, larvae were observed daily. Different instars were fixed in ethylic alcohol to determine instar duration by the evaluation of the frequency distribution of cephalic capsule measurements and the principal components analysis (PCA). Females laid 620-700 eggs per posture in concealed locations preferentially, such as cranial cavities and slots on the metal cage. The larvae were found under the swine skin and on bones. After feeding, the larvae of H. illucens began to move slowly to pupate, did not seek for drier sites to do it, and buried themselves into the carcass instead. Pupae were observed as of the 60th day after death. H. illucens completed its life cycle in 53-82 d, which encompassed six larval instars and the pupa. About 93% of the eggs hatched, 11% reached the adult stage and the sex ratio was 0.49. Our results are complementary to the biological information of this species in Central Amazon, since most of the data were not known yet. This should render PMI calculation more accurate, even for corpses in advanced decomposition stages, as H. illucens spends relatively more time on the carcasses than most dipterans.

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Information on biomass is substantial for calculating growth rates and may be employed in the medicolegal and economic importance of Hermetia illucens (Linnaeus, 1758). Although biomass is essential to understanding many ecological processes, it is not easily measured. Biomass may be determined by directly weighing or indirectly through regression models of fresh/dry mass versus body dimensions. In this study, we evaluated the association between morphometry and fresh/dry mass of immature H. illucens using linear, exponential, and power regression models. We measured width and length of the cephalic capsule, overall body length, and width of the largest abdominal segment of 280 larvae. Overall body length and width of the largest abdominal segment were the best predictors for biomass. Exponential models best fitted body dimensions and biomass (both fresh and dry), followed by power and linear models. In all models, fresh and dry biomass were strongly correlated (>75%). Values estimated by the models did not differ from observed ones, and prediction power varied from 27 to 79%. Accordingly, the correspondence between biomass and body dimensions should facilitate and motivate the development of applied studies involving H. illucens in the Amazon region.

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There are few studies in tropical regions exploring the use of leaf breakdown process as a functional tool to assess anthropic disturbance on aquatic ecosystems. We assessed the effects of water pollution due to human activities on the leaf breakdown rate of Picramnia sellowii in streams of the southeastern Brazil. The experiment was carried out for 60 days in three reference streams and three streams impaired by organic pollution and absence of riparian vegetation. Three litter bags were incubated in each stream containing 3 ± 0.05 g of P. sellowii leaves. The reference streams presented higher values of dissolved oxygen and lower values of nutrients, turbidity, electrical conductivity, total impermeable area and water temperature. The leaf breakdown rate (k) differed significantly between the reference (k = 0.014 ± 0.003 d-1) and impaired streams (k = 0.005 ± 0.001 d-1). The leaves incubated in the reference streams contained greater fungal biomass (measured as ergosterol concentration) and abundance of invertebrates, as well as greater presence of shredders, with k values being related to the biomass of these organisms. Overall, there were clear differences between the leaf mass loss in the reference and impaired streams. These results reinforce the negative effect of urbanization on leaf breakdown and fungal and shredder biomass.

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Abstract There are few studies in tropical regions exploring the use of leaf breakdown process as a functional tool to assess anthropic disturbance on aquatic ecosystems. We assessed the effects of water pollution due to human activities on the leaf breakdown rate of Picramnia sellowii in streams of the southeastern Brazil. The experiment was carried out for 60 days in three reference streams and three streams impaired by organic pollution and absence of riparian vegetation. Three litter bags were incubated in each stream containing 3 ± 0.05 g of P. sellowii leaves. The reference streams presented higher values of dissolved oxygen and lower values of nutrients, turbidity, electrical conductivity, total impermeable area and water temperature. The leaf breakdown rate (k) differed significantly between the reference (k = 0.014 ± 0.003 d–1) and impaired streams (k = 0.005 ± 0.001 d–1). The leaves incubated in the reference streams contained greater fungal biomass (measured as ergosterol concentration) and abundance of invertebrates, as well as greater presence of shredders, with k values being related to the biomass of these organisms. Overall, there were clear differences between the leaf mass loss in the reference and impaired streams. These results reinforce the negative effect of urbanization on leaf breakdown and fungal and shredder biomass.

Resumo Na região tropical são escassos os estudos que exploram o uso do processo de decomposição foliar como ferramenta funcional para avaliar os efeitos das perturbações antrópicas sobre os ecossistemas aquáticos. Nosso objetivo foi avaliar os efeitos dos impactos antrópicos sobre a taxa de decomposição de Picramnia sellowii em riachos no Sudeste do Brasil. O experimento foi realizado durante 60 dias em três riachos referências e três impactados por poluição orgânica e sem cobertura vegetal. Em cada riacho foram incubados três sacos contendo 3 ± 0,05 g de folhas secas de P. sellowii. Os riachos referência apresentaram maiores concentrações de oxigênio dissolvido e menores valores de nutrientes, turbidez, condutividade elétrica, TIA (área total impermeável) e temperatura. O coeficiente de decomposição (k) diferiu entre os riachos referência (k = 0,014 ± 0,003 d–1) e os impactados (k = 0,005 ± 0,001 d–1). Nas folhas incubadas nos riachos referência foi observada maior biomassa de fungos e abundância de invertebrados, assim como a presença de fragmentadores, estando o k relacionado com a biomassa destes organismos. A decomposição se mostrou sensível para avaliar impactos antrópicos nos ecossistemas aquáticos uma vez que foram observadas nítidas diferenças entre a perda de massa foliar nos riachos referências e impactados. Estes resultados reforçam o efeito negativo da urbanização sobre a decomposição e biomassa de fungos e fragmentadores.

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RESUMO

There are few studies in tropical regions exploring the use of leaf breakdown process as a functional tool to assess anthropic disturbance on aquatic ecosystems. We assessed the effects of water pollution due to human activities on the leaf breakdown rate of Picramnia sellowii in streams of the southeastern Brazil. The experiment was carried out for 60 days in three reference streams and three streams impaired by organic pollution and absence of riparian vegetation. Three litter bags were incubated in each stream containing 3 ± 0.05 g of P. sellowii leaves. The reference streams presented higher values of dissolved oxygen and lower values of nutrients, turbidity, electrical conductivity, total impermeable area and water temperature. The leaf breakdown rate (k) differed significantly between the reference (k = 0.014 ± 0.003 d–1) and impaired streams (k = 0.005 ± 0.001 d–1). The leaves incubated in the reference streams contained greater fungal biomass (measured as ergosterol concentration) and abundance of invertebrates, as well as greater presence of shredders, with k values being related to the biomass of these organisms. Overall, there were clear differences between the leaf mass loss in the reference and impaired streams. These results reinforce the negative effect of urbanization on leaf breakdown and fungal and shredder biomass.(AU)

Na região tropical são escassos os estudos que exploram o uso do processo de decomposição foliar como ferramenta funcional para avaliar os efeitos das perturbações antrópicas sobre os ecossistemas aquáticos. Nosso objetivo foi avaliar os efeitos dos impactos antrópicos sobre a taxa de decomposição de Picramnia sellowii em riachos no Sudeste do Brasil. O experimento foi realizado durante 60 dias em três riachos referências e três impactados por poluição orgânica e sem cobertura vegetal. Em cada riacho foram incubados três sacos contendo 3 ± 0,05 g de folhas secas de P. sellowii. Os riachos referência apresentaram maiores concentrações de oxigênio dissolvido e menores valores de nutrientes, turbidez, condutividade elétrica, TIA (área total impermeável) e temperatura. O coeficiente de decomposição (k) diferiu entre os riachos referência (k = 0,014 ± 0,003 d–1) e os impactados (k = 0,005 ± 0,001 d–1). Nas folhas incubadas nos riachos referência foi observada maior biomassa de fungos e abundância de invertebrados, assim como a presença de fragmentadores, estando o k relacionado com a biomassa destes organismos. A decomposição se mostrou sensível para avaliar impactos antrópicos nos ecossistemas aquáticos uma vez que foram observadas nítidas diferenças entre a perda de massa foliar nos riachos referências e impactados. Estes resultados reforçam o efeito negativo da urbanização sobre a decomposição e biomassa de fungos e fragmentadores.(AU)

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The oligochaetes are considered good indicators of ecological conditions and specific types of habitats. Among the factors that influence the distribution of these invertebrates are the water flow and the nature of the substrate. The aim of this study is to describe the composition and distribution of oligochaete species in a first-order stream in Atlantic Forest and try to identify if some species are associated with characteristics of particular types of habitats. In the dry season and in the rainy season, sand and litter samples in two riffle areas and two pool areas were collected in different parts along the stream using a hand net. The greatest observed richness and abundance occurred in sand in the pool, however the greatest estimated richness was obtained for litter in the pool. The Kruskal-Wallis analysis showed effect of the different types of habitat on the abundance and richness of oligochaetes. The Nonmetric Multidimensional Scaling (NMDS) and Multiresponse Permutation Procedure analysis (MRPP) indicated that the variation in the fauna composition had relation with different types of substrates. The indicator species analysis showed that Limnodrilus. hoffmeisteri was an indicator species in both the riffle sand and pool sand and Pristina americana was only an indicator in the pool sand. The high organic matter content in both sandy habitats probably favored the greater abundance of oligochaetes. The results showed that the substrate constitutes an important factor for the local distribution of these invertebrates in streams. The variation of the community structure among mesohabitats and the presence of indicator species of specific types of habitats in the stream demonstrate the importance of environmental heterogeneity for the oligochaetes fauna in forested streams.

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The objective of this work was to characterize milk production from the Central Mineira and Oeste Mesoregions regions in Minas Gerais State, Brazil, according to quality parameters such as somatic cell count, total bacteria count, and composition for specific production ranges. Average results for milk fat, protein, total and nonfat solids were compliant with Brazilian legal requirements (IN-62/2011) in all the production ranges selected. Average somatic cell counts (SCC) complied with the legal requirements of 600,000 cells/mL, except for the range with a daily production above 1,000 liters. However, average maximum values of 400,000 cells/mL are recommended for good milk quality. Total bacterial count was the most critical quality factor, with the highest values found in breeds with milk production above 500 liters per day.

O presente trabalho teve por objetivo caracterizar a produção de leite nas mesorregiões Central Mineira e do Oeste de Minas do estado de Minas Gerais, quanto à contagem de células somáticas, à contagem bacteriana total e à composição, em diferentes faixas de produção. Os teores de gordura, proteína, sólidos totais e extrato seco desengordurado apresentaram valores médios dentro do limite estabelecido pela Instrução Normativa n°62 (IN-62/2011), em todas as faixas específicas de produção estipuladas no presente trabalho. Os valores de contagem de células somáticas (CCS) também se mostraram dentro do limite legalmente estabelecido de 600.000 células/mL, exceto na faixa de produção acima de 1.000L/dia. Entretanto, valores abaixo de 400.000 células/mL são recomendados para um leite de boa qualidade. A contagem bacteriana total foi o fator de qualidade mais crítico. Os valores médios de contagem bacteriana ultrapassaram o limite atualmente preconizado, e rebanhos com volume diário acima de 500 litros por dia foram os que apresentaram maior número de resultados que não estão em conformidade com os padrões legais.

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RESUMO

The objective of this work was to characterize milk production from the Central Mineira and Oeste Mesoregions regions in Minas Gerais State, Brazil, according to quality parameters such as somatic cell count, total bacteria count, and composition for specific production ranges. Average results for milk fat, protein, total and nonfat solids were compliant with Brazilian legal requirements (IN-62/2011) in all the production ranges selected. Average somatic cell counts (SCC) complied with the legal requirements of 600,000 cells/mL, except for the range with a daily production above 1,000 liters. However, average maximum values of 400,000 cells/mL are recommended for good milk quality. Total bacterial count was the most critical quality factor, with the highest values found in breeds with milk production above 500 liters per day.(AU)

O presente trabalho teve por objetivo caracterizar a produção de leite nas mesorregiões Central Mineira e do Oeste de Minas do estado de Minas Gerais, quanto à contagem de células somáticas, à contagem bacteriana total e à composição, em diferentes faixas de produção. Os teores de gordura, proteína, sólidos totais e extrato seco desengordurado apresentaram valores médios dentro do limite estabelecido pela Instrução Normativa n°62 (IN-62/2011), em todas as faixas específicas de produção estipuladas no presente trabalho. Os valores de contagem de células somáticas (CCS) também se mostraram dentro do limite legalmente estabelecido de 600.000 células/mL, exceto na faixa de produção acima de 1.000L/dia. Entretanto, valores abaixo de 400.000 células/mL são recomendados para um leite de boa qualidade. A contagem bacteriana total foi o fator de qualidade mais crítico. Os valores médios de contagem bacteriana ultrapassaram o limite atualmente preconizado, e rebanhos com volume diário acima de 500 litros por dia foram os que apresentaram maior número de resultados que não estão em conformidade com os padrões legais.(AU)

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Acute kidney injury (AKI) is common in critically ill patients. Diuretics are used without any evidence demonstrating a beneficial effect on renal function. The objective of the present study is to determine the incidence of AKI in an intensive care unit (ICU) and if there is an association between the use of furosemide and the development of AKI. The study involved a hospital cohort in which 344 patients were consecutively enrolled from January 2010 to January 2011. A total of 132 patients (75 females and 57 males, average age 64 years) remained for analysis. Most exclusions were related to ICU discharge in the first 24 h. Laboratory, sociodemographic and clinical data were collected until the development of AKI, medical discharge or patient death. The incidence of AKI was 55% (95%CI = 46-64). The predictors of AKI found by univariate analysis were septic shock: OR = 3.12, 95%CI = 1.36-7.14; use of furosemide: OR = 3.27, 95%CI = 1.57-6.80, and age: OR = 1.02 (95%CI = 1.00-1.04). Analysis of the subgroup of patients with septic shock showed that the odds ratio of furosemide was 5.5 (95%CI = 1.16-26.02) for development of AKI. Age, use of furosemide, and septic shock were predictors of AKI in critically ill patients. Use of furosemide in the subgroup of patients with sepsis/septic shock increased (68.4%) the chance of development of AKI when compared to the sample as a whole (43.9%).

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RESUMO

Acute kidney injury (AKI) is common in critically ill patients. Diuretics are used without any evidence demonstrating a beneficial effect on renal function. The objective of the present study is to determine the incidence of AKI in an intensive care unit (ICU) and if there is an association between the use of furosemide and the development of AKI. The study involved a hospital cohort in which 344 patients were consecutively enrolled from January 2010 to January 2011. A total of 132 patients (75 females and 57 males, average age 64 years) remained for analysis. Most exclusions were related to ICU discharge in the first 24 h. Laboratory, sociodemographic and clinical data were collected until the development of AKI, medical discharge or patient death. The incidence of AKI was 55% (95%CI = 46-64). The predictors of AKI found by univariate analysis were septic shock: OR = 3.12, 95%CI = 1.36-7.14; use of furosemide: OR = 3.27, 95%CI = 1.57-6.80, and age: OR = 1.02 (95%CI = 1.00-1.04). Analysis of the subgroup of patients with septic shock showed that the odds ratio of furosemide was 5.5 (95%CI = 1.16-26.02) for development of AKI. Age, use of furosemide, and septic shock were predictors of AKI in critically ill patients. Use of furosemide in the subgroup of patients with sepsis/septic shock increased (68.4%) the chance of development of AKI when compared to the sample as a whole (43.9%).

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The aim of this study was to evaluate the presence of Chaetogaster limnaei K. von Baer, 1927 in four species of mollusks collected in irrigation channels of a horticultural garden in the city of Juiz de Fora, Minas Gerais State, Southeastern Brazil. The collections were made from June 2005 to January 2006. Of the four species of mollusks analysed, we could not detect the presence of C. limnaei in Pomacea lineata (Spix, 1827). There were recorded 320 specimens of C. limnaei in association with Aplexa rivalis Mastou & Rackett, 1898, Lymnaea columella Say, 1818 and Biomphalaria sp., the latter having the highest number of associated Naididae.

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Realizaram-se inspeção visual e avaliações bacteriológicas e físico-químicas da piramutaba, Brachyplatistoma vaillanti, congelada, eviscerada e sem cabeça, de 20 amostras compostas por um pool de três peixes dos dois principais distribuidores da região de Belo Horizonte, MG, sob as exigências legais. Salmonella ssp. e Staphylococcus aureus foram encontradas somente em amostras de um distribuidor, indicando que 10 por cento delas estavam impróprias para o consumo humano. Os resultados confirmam a baixa incidência desses patógenos na piramutaba. As bases voláteis totais estiveram dentro do limite exigido por lei, e os valores de pH apresentaram-se fora dos padrões legais em 90 por cento das amostras, nos dois distribuidores.

Visual inspection and bacteriological and physico-chemical evaluations were carried out in frozen, eviscerated, and headless piramutaba (Brachyplatistoma vaillanti). Twenty samples composed by a pool of three fish from the two main wholesalers of Belo Horizonte, MG, were studied. Salmonella ssp. and Staphylococcus aureus were only found in samples of one wholesaler, representing that 10 percent of the samples were inappropriate for human consumption. The results confirmed the low incidence of these pathogens in piramutaba. The total volatile bases were in accordance and the pH values were not in accordance with the law requirements in 90 percent of the samples.

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Realizaram-se inspeção visual e avaliações bacteriológicas e físico-químicas da piramutaba, Brachyplatistoma vaillanti, congelada, eviscerada e sem cabeça, de 20 amostras compostas por um pool de três peixes dos dois principais distribuidores da região de Belo Horizonte, MG, sob as exigências legais. Salmonella ssp. e Staphylococcus aureus foram encontradas somente em amostras de um distribuidor, indicando que 10 por cento delas estavam impróprias para o consumo humano. Os resultados confirmam a baixa incidência desses patógenos na piramutaba. As bases voláteis totais estiveram dentro do limite exigido por lei, e os valores de pH apresentaram-se fora dos padrões legais em 90 por cento das amostras, nos dois distribuidores.(AU)

Visual inspection and bacteriological and physico-chemical evaluations were carried out in frozen, eviscerated, and headless piramutaba (Brachyplatistoma vaillanti). Twenty samples composed by a pool of three fish from the two main wholesalers of Belo Horizonte, MG, were studied. Salmonella ssp. and Staphylococcus aureus were only found in samples of one wholesaler, representing that 10 percent of the samples were inappropriate for human consumption. The results confirmed the low incidence of these pathogens in piramutaba. The total volatile bases were in accordance and the pH values were not in accordance with the law requirements in 90 percent of the samples.(AU)

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Avaliaram-se o rendimento de filetagem e os valores percentuais das partes de tilápia tailandesa (Oreochromis spp.), no âmbito de uma empresa em Minas Gerais, durante o período de janeiro a novembro de 2004. Foram processadas 4260 tilápias (2560 quilos), registrando-se os pesos totais dos peixes e de suas partes principais, o desempenho da mão-de-obra e o tempo gasto no processo. Os peixes foram distribuidos em três classes de peso (300 a 600g; 601 a 800g e 801 a 1000g) O rendimento médio de filetagem foi de 31,0 por cento, variando de 28,9 por cento a 33,6 por cento, complementado por 36,0 por cento de cabeça e vísceras, 8,0 por cento de pele, 22,0 por cento de resíduo ósseo e 3,0 por cento de restos de toilet. Não houve diferença no rendimento de filetagem (P>0,05), entre as três classes de pesos. Verificaram-se que as variações dos percentuais e o desempenho dos operários têm impacto na competitividade da empresa.

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Avaliaram-se o rendimento de filetagem e os valores percentuais das partes de tilápia tailandesa (Oreochromis spp.), no âmbito de uma empresa em Minas Gerais, durante o período de janeiro a novembro de 2004. Foram processadas 4260 tilápias (2560 quilos), registrando-se os pesos totais dos peixes e de suas partes principais, o desempenho da mão-de-obra e o tempo gasto no processo. Os peixes foram distribuidos em três classes de peso (300 a 600g; 601 a 800g e 801 a 1000g) O rendimento médio de filetagem foi de 31,0%, variando de 28,9% a 33,6%, complementado por 36,0% de cabeça e vísceras, 8,0% de pele, 22,0% de resíduo ósseo e 3,0% de restos de toilet. Não houve diferença no rendimento de filetagem (P>0,05), entre as três classes de pesos. Verificaram-se que as variações dos percentuais e o desempenho dos operários têm impacto na competitividade da empresa.(AU)

This experiment was carried out in order to evaluate some technical aspects of the industrial processing of tilapias (Oreochromis spp.), with emphasis on the filefishing profitability in an industry, located in Minas Gerais state, Brazil. During a period between January and November, 2004, 4260 fishes, totalling 2560kg, with individual weights ranging from 300 to 1000g (mean individual weight of 600g) were processed. Data collected comprehended total body weight, and parts weight, such as: head and viscera, filefish, skin, carcass residue and "toilet" residue, aiming to correlating the per cent value of each part, also considering: fish size method of cutting and processing time. The net filefish per cent was 31.0%, ranging between 28.9% to 33.6%, complemented by: head-viscera 36.0%; skin 8.0%; carcass residue 22.0% and toilet 3.0%. No statistical differences in net filefish gains in three different classes of sizes of fishes (300-600g; 601- 800g and 801-100g) (P>0.05) were detected. In addition, the variation of net yield, as well as labor efficiency, had a particular impact in the company competitvity.(AU)

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Para avaliar o efeito de diferentes tipos de óleo de soja na composiçäo em ácidos graxos da carcaça, foram utilizados 128 frangos (64 machos e 64 fêmeas) da linhagem Hubbard. O delineamento experimental foi inteiramente ao acaso, com quatro repetiçöes, e os tratamentos foram constituídos de um fatorial 4 I 2 (quatro dietas e dois sexos). As quatro dietas foram formuladas da seguinte forma: A- sem adiçäo de óleo (controle); B -com óleo de soja refinado; C- com óleo de soja degomado e D- com borra acidulada. As dietas foram isocalóricas e isonutritivas. Aos 45 dias de idade os frangos foram abatidos, eviscerados, congelados e moídos para posterior análise de extrato etéreo e composiçäo em ácidos graxos. Os machos que receberam dietas sem adiçäo de óleo depositaram (P<0,05) mais ácido mirístico do que as fêmeas. As aves que receberam dieta com óleo refinado depositaram (P<0,05) mais ácido esteárico na carcaça do que as submetidas às demais dietas. As carcaças das aves que receberam dietas com adiçäo de óleo apresentaram menor teor (P<0,05) de ácido graxo palmitoléico do que as que näo receberam suplementaçäo com óleo. As carcaças das aves que receberam dietas controle e com adiçäo de borra acidulada apresentaram maior teor de ácido oléico quando comparadas com as que receberam os óleos refinado e degomado. Os resultados demonstraram que o óleo de soja refinado e o óleo de soja degomado aumentaram o teor de ácido graxo linoléico na gordura da carcaça de frango, tornando-a mais insaturada. Os resultados foram semelhantes quanto ao sexo

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Para avaliar o efeito de diferentes tipos de óleo de soja na composição em ácidos graxos da carcaça, foram utilizados 128 frangos (64 machos e 64 fêmeas) da linhagem Hubbard. O delineamento experimental foi inteiramente ao acaso, com quatro repetições, e os tratamentos foram constituídos de um fatorial 4 I 2 (quatro dietas e dois sexos). As quatro dietas foram formuladas da seguinte forma: A- sem adição de óleo (controle); B -com óleo de soja refinado; C- com óleo de soja degomado e D- com borra acidulada. As dietas foram isocalóricas e isonutritivas. Aos 45 dias de idade os frangos foram abatidos, eviscerados, congelados e moídos para posterior análise de extrato etéreo e composição em ácidos graxos. Os machos que receberam dietas sem adição de óleo depositaram (P<0,05) mais ácido mirístico do que as fêmeas. As aves que receberam dieta com óleo refinado depositaram (P<0,05) mais ácido esteárico na carcaça do que as submetidas às demais dietas. As carcaças das aves que receberam dietas com adição de óleo apresentaram menor teor (P<0,05) de ácido graxo palmitoléico do que as que não receberam suplementação com óleo. As carcaças das aves que receberam dietas controle e com adição de borra acidulada apresentaram maior teor de ácido oléico quando comparadas com as que receberam os óleos refinado e degomado. Os resultados demonstraram que o óleo de soja refinado e o óleo de soja degomado aumentaram o teor de ácido graxo linoléico na gordura da carcaça de frango, tornando-a mais insaturada. Os resultados foram semelhantes quanto ao sexo.(AU)

One hundred twenty eight Hubbard breed chicks (64 males and 64 females) were used in a completely randomized design with four replicates and eight chicks per experimental unit, to evalatue the effect of different types of soybean oil on fatty acids composition of broiler carcass. The treatments consisted of isocaloric and isonutritive diets formulated with different soybean oils as follows: treatment 1 - control group without oil addition; treatment 2 refined soybean oil; treatment 3 –degumed soybean oil; and treatment 4 acid soybean residue. The chickens were slaughtered, eviscerated, frozen and grounded, and a pool of four carcasses per replicate was obtained. Analyses of ether extract and fatty acid composition of carcasses fat were performed. The males fed on control diet accumulated more myristic acid on their carcasses than the females (P<0.05), while broilers fed on refined soybean oil diet deposited more stearic acid on their carcasses than those fed on the other diets (P<0.05). The carcasses of broilers fed on oil added diets had lower palmitoleic fatty acid contents than those fed on control diet. Carcasses of broilers fed on control diet and on acid residue diet showed more oleic acid than those fed on refined soybean oil diet. Broilers fed on refined soybean oil and deggumed soybean oil diets had an increase in the linoleic fatty acid content of the carcass fat.(AU)

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O presente trabalho teve como objetivos elaborar um processamento de requeijäo em barra com teor reduzido de gordura utilizando-se concentrado protéico de soro como substituto da gordura e avaliar suas características físico-químicas. O requeijäo foi fabricado a partir da adiçäo de três níveis (tratamentos) do concentrado, 0,2, 1,0 e 2,0 por cento, e um com teor integral de gordura (controle). As amostras foram analisadas na primeira semana de fabricaçäo para pH, acidez ( por cento de ácido lático), teor de umidade (g/100 g), teor de gordura (g/100 g), teor de proteína (g/100 g) e teor de cinzas (g/100 g). Somente o teor de gordura apresentou diferença significativa entre o grupo-controle e os demais tratamentos (P<0,05)

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