Abstract This study aimed at evaluating the levels of moisture, protein, water to protein ratio, and water absorption during chilling of chicken giblets (heart, liver, and gizzard) to set legal limits of water absorption during this process. The survey was conducted in the southern Brazil, the largest broiler-producing region of this country. Giblets (heart, liver, and gizzard) were collected fresh from the processing line after evisceration and at the exit of the chiller after the immersion process from two processing plants. One of the plants (PP1) processes small chickens (1,100g live weight) and PP2 processes chickens with 2,800g live weight. In total, 448 samples were collected. Laboratory tests were performed in duplicate for each parameter measured. The results show that moisture levels of fresh giblets were higher in the gizzard, followed by the liver and the heart, whereas in chilled giblets, the gizzard still maintained the highest moisture level, but was followed by the heart and then the liver. Both in fresh and chilled samples, the liver presented the highest protein content, followed by the gizzard and the heart. Water to protein ratios were higher in chilled than in fresh samples, and was highest in the heart, followed by the gizzard and the liver. After immersion in the chiller, the heart presented the highest water absorption rate (6.59%), which was significantly higher compared with those of the liver (4.16%) and the gizzard (4.51%). Considering that the water absorption rates obtained both in fresh and chilled chicken giblets were below 8.00%, the following upper limits of water absorption are suggested for chicken giblet processing in Brazil: 7.0% for the heart, and 5.0% for the gizzard and the liver.

Determinou-se a capacidade produtiva de diferentes híbridos e cultivares de berinjela. Sete híbridos (Nápoli, Diamante Negro, Ciça, F-100, Super F-100, Kiko e F-2000) e duas cultivares de polinização aberta (Suzuki e Florida Market) foram avaliados. O delineamento experimental foi em blocos ao acaso, constituído de nove tratamentos e três repetições. Cada repetição foi composta de oito plantas. As mudas foram plantadas no espaçamento 1,5m x 1,0m. A cultivar Suzuki produziu a maior quantidade de frutos por planta (27 frutos) embora tenha apenas diferido significativamente da cultivar Flórida Market (13 frutos). Os híbridos testados apresentaram número de frutos variando de 20 a 25. Não foi verificada diferença significativa para o número de frutos de 1ª e 2ª categoria entre os materiais testados. Flórida Market e Kiko apresentaram a maior massa média do fruto (362,5 e 358,7 g, respectivamente), diferindo significativamente da cultivar Suzuki, que produziu frutos com a menor massa (178,9 g). As maiores produções por planta foram obtidas com o híbrido Kiko que diferiu significativamente da cultivar Suzuki. Foi verificado que os híbridos Kiko, Diamante Negro, Ciça e F-2000 apresentam potencial de produção semelhante ao Nápoli, atual padrão de mercado.

The yield capacity of seven hybrids (Napoli, Diamante Negro, Ciça, F-100, Super F-100, Kiko and F-2000) and two cultivars of open pollination were determined (Suzuki and Florida Market). The experiment was laid out in a randomized block design with three replicates and eight plants per plot. The planting distances were 1,5 x 1,0 m. Cultivar Suzuki produced higher number of fruits per plant (27 fruits), being different from Florida Market (13 fruits). The hybrids presented 20 to 25 fruits per plant. There was no difference between the number of fruits of first and second category. Florida Market and Kiko presented the highest fruit mass (362.5 and 358.7 g, respectively), differing from cultivar Suzuki, that presented the lowest fruit mass (178.9 g). Hybrid Kiko presented the highest yield per plant, differing significantly from Suzuki. Kiko, Diamante Negro, Ciça and F-2000 presented yield potential similar to Nápoli.