ABSTRACT
O ovo de codorna é um alimento equilibrado e completo em nutrientes. No entanto, é importante o armazenamento adequado, visando minimizar a perda de todo esse potencial nutritivo apresentado. O objetivo deste trabalho foi avaliar a qualidade de ovos de codornas comercializados durante as estações de inverno e verão em diferentes estabelecimentos comerciais no município de Aquidauana - MS. Foram utilizados 960 ovos (480 em cada estação do ano), adquiridos em quatro diferentes estabelecimentos comerciais. As variáveis analisadas foram: peso do ovo (PO), unidade Haugh (UH), índice de gema (IG), cor de gema crua (COR), porcentagem de gema (PG), albúmen (PA) e casca (PCA), pH de gema (pHG) e albúmen (pHA), gravidade específica (GE) e espessura de casca (EC). Os dados foram submetidos à análise de variância para verificar os efeitos dos fatores estudados e a comparação entre as médias dos tratamentos foi realizada por meio do teste de Tukey (p<0,05). A qualidade dos ovos reduziu no verão, influenciando negativamente as variáveis: PO, UH, PA e PG, sobretudo o pHA. Embora tenha sido prejudicada, a UH ainda apresentou valores considerados excelentes, com mínimo encontrado de 77,81. Houve também diferenças na qualidade dos ovos entre os estabelecimentos avaliados, com menores valores analisados no estabelecimento 1. Conclui-se que no verão os ovos são mais suscetíveis a perda de qualidade em relação ao inverno em estabelecimentos que armazenam os em temperatura ambiente.
Quail eggs are a balanced and nutrient-dense food. However, adequate storage is important, aiming to minimize the loss of all this nutritional potential presented. The objective of this work was to evaluate the quality of quail eggs sold during the winter and summer seasons in different commercial establishments in the municipality of Aquidauana - MS. 960 eggs were used (480 in each season of the year), purchased from four different commercial establishments. The variables analyzed were egg weight (PO), Haugh unit (UH), yolk index (IG), raw yolk color (COR), percentage of yolk (PG), albumen (PA) and shell (PCA), Yolk pH (pHG) and albumen (pHA), specific gravity (GE) and shell thickness (EC). The data were subjected to analysis of variance to verify the effects of the studied factors and the comparison between treatment means was performed using the Tukey test (p<0.05). Egg quality showed a reduction in the summer, affecting variables such as PO, UH, PA and PG, especially pHA. Even with these reductions, UH still presented values considered excellent, with a minimum found of 77.81. There were also differences in egg quality between the establishments evaluated, with lower values analyzed in establishment 1. It is concluded that eggs are more susceptible to loss of quality in summer compared to winter in establishments with storage at room temperature.
Los huevos de codorniz son un alimento equilibrado y rico en nutrientes. Sin embargo, es importante un almacenamiento adecuado, con el objetivo de minimizar la pérdida de todo este potencial nutricional presentado. El objetivo de este trabajo fue evaluar la calidad de los huevos de codorniz comercializados durante las temporadas de invierno y verano en diferentes establecimientos comerciales del municipio de Aquidauana - MS. Se utilizaron 960 huevos (480 en cada época del año), adquiridos en cuatro establecimientos comerciales diferentes. Las variables analizadas fueron: peso del huevo (PO), unidad Haugh (HU), índice de yema (IG), color de yema cruda (COR), porcentaje de yema (PG), albúmina (PA) y cáscara (PCA), pH de la yema (pHG) y albúmina (pHA), gravedad específica (GE) y espesor de la cáscara (EC). Los datos fueron sometidos a análisis de varianza para verificar los efectos de los factores estudiados y la comparación entre medias de tratamientos se realizó mediante la prueba de Tukey (p<0,05). La calidad del huevo mostró una reducción en el verano, afectando variables como PO, UH, PA y PG, especialmente pHA. Aún con estas reducciones, UH aún presentó valores considerados excelentes, con un mínimo encontrado de 77,81. También hubo diferencias en la calidad del huevo entre los establecimientos evaluados, analizándose valores menores en el establecimiento 1. Se concluye que los huevos son más susceptibles a la pérdida de calidad en verano en comparación con el invierno en establecimientos con almacenamiento a temperatura ambiente.
ABSTRACT
Employing forced aeration (FA) in composting static windrows (SW) from fish waste (FW) has the potential to enhance the development of process and, organic fertiliser quality. However, due to the impact of season, the FA may lead to excessive drying of SW and, difficulty in thermophilic temperature maintenance. The aim of this study was to assess the effects of passive aeration (PA) and FA on the composting of FW in SW during the summer and winter seasons. The temperatures of the windrows remained within the thermophilic range for most of the composting period, with peak temperatures observed shortly after starting and turning the windrows (at 50 and 70 days). The aeration benefited the initial TS degradations, resulting in 86.66 and 45.99% of the TS total reduced to FA and PA piles, at 50 days during the winter. The C organic reduction was 77.77 and 76.33% in summer and winter to FA piles, respectively, but this reduction was 59.24% and 67.82% for winter and summer, respectively, in PA windrows. At 50 days, the N reduction in FA piles was already at 70.32% and 71.87% for winter and summer. The volatile solids reductions were significantly higher (p < 0.01) in FA piles during the summer. Although the FA has been shown to enhance the organic constituents' degradation during the composting of FW, its adoption was not enough to improve the compost composition. Thus, by conducting piles on a small scale, with the perforated wall, as described in this study, the FA could be dispensed.
