Estádios de maturação de pêssegos 'Aurora-1' para o processamento mínimo

The experiment aimed to verify the effect of maturation stage on the quality of minimally processed peaches. Fruits were used in two stages of maturity, on time corresponding to the background color yellow-green, and mature, which corresponds completely to the background color yellow. The minimum process consisted of washing, sanitizing, enzyme peel, cut lengthwise and removed the stone fruits. Halves obtained were immersed in water chlorinated to 10 mg L-1 of water and left on standing to drain the excess liquid. Afterwards, it was proceeded the packaging of the halves in containers of polyethylene terephthalate (PET) and with transparent lid, and the storage at 3 ± 2 ° C and RH = 65% for 12 days, with assessments every three days. The variables evaluated were appearance, weight loss, firmness, soluble solids, titratable acidity, soluble and reduced sugars, ascorbic acid, total and soluble pectin, coloring and activity of polyphenoloxidase. The storage of minimally processed peaches 'Aurora-1' mature harvested was limited mainly by the loss of freshness and firmness, and because they have darker appearance, and lower levels of reduced sugars and ascorbic acid. Peaches 'Aurora-1', harvested at the maturity stage on time, had better quality and longer duration of their minimally processed products.

Teores de iodo em dietas secas e úmidas para gatos adultos comercializadas na cidade do Rio de Janeiro, Brasil

Were analyzed 29 samples, 16 wet and 13 dry cat food of different flavors. The iodine levels ranged from 2.7 to 3.4 (average 2.95 mg/kg/MS) in dry food and 2.9 to 4.0 (average 3.4 mg/kg/MS) in the wet food. Eight samples (27.6%) specified on the package the assurance level (maximum) of iodine, with a dry (2.0 mg/kg/diet) and seven wet (0.04 mg/kg/diet). All non-compliant, because the values were higher than declared. Cats fed commercial diets consume proportionally more iodine in wet food than cats fed dry diets, but both with high levels of iodine. All samples analyzed were above the amounts stated on the labels. Accordingly, the wet and dry commercial food for cats show no reliable values with those reported, resulting in a possible excessive intake of this trace element for animals in question.

Efeito da suplementação de betaína em dietas de frangos de corte em condições de termoneutralidade

The aim of this study was to evaluate the effect of inclusion of betaine in broiler diets on performance and intestinal morphology of broilers during periods 1 to 7 and 8 to 21 days old. Were used 1,408 Cobb male broiler, randomly assigned into 4 treatments with 16 replicates of 22 birds in environmental chambers. The treatments were: i) positive control - diet formulated according to the nutritional requirements of the birds; ii) negative control - with reduction levels of methionine and choline; iii) negative control + 0.092% supplementation of betaine in substitution of methionine and total choline; iv) negative control + 0.1% supplementation of natural betaine to replace partial methionine and total choline. Were evaluated feed intake, weight gain and feed conversion at 7 and 21 days old. At 25 days were evaluated crypt height and depth of jejunum. The results were analyzed by ANOVA and mean comparison test. The results obtained with the supplementation of betaine in the feed only demonstrated a positive effect on feed consumption during 1 to 7 days, and villous height of the jejunum in the period of 8 to 21 days. Supplementation of 0.1% betafin (96% natural betaine) in the diet provided significant improvements in the morphological characteristics of the small intestine of broilers.

Concentrado proteico de vísceras de surubim híbrido em dietas para cachara

The current study evaluated the growth performance and the haematological profile of barred sorubim fed with levels of hybrid sorubim viscera protein concentrate (0.0; 5.0; 10.0 e 15.0%) in isoprotein and isoenergetic diets. Eighty fish with an average initial weight of 39.8 ± 0.28 g and an average initial length of 19.92 ± 0.25 cm were distributed in 16 aquaria of 60 L, with recirculation system and temperature control, during 35 days. The experimental design was completely randomized with four treatments and four replications. For the growth performance assay were analyzed the follows variables: weight gain (WG), feed consumption (FC), apparent feed conversion ratio (AFCR) and protein efficiency ratio (PER). Furthermore, the hemogram were assessed on the treated fish with levels of protein concentrate. It was observed no significant difference (P>0.05) for all the parameters evaluated. It was concluded that the protein concentrate from hybrid sorubim viscera can be included up to 15% in diets for barred sorubim juveniles without negative response on the performance and health.

Valor agregado aos resíduos do processamento de tilápia: aspectos tecnológicos, químicos e microestruturais

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Inclusão do farelo de amendoim em dietas para juvenis de tilápia do Nilo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Efeito de dietas e altura da coluna d’água na sobrevivência de larvas de Betta splendens e o aporte de nitrogênio e fósforo

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Produção de juvenis de Pseudoplatystoma coruscans (Agassiz, 1829) com dietas vivas e formuladas

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Suplementação com selênio orgânico nas dietas de tilápia do Nilo (Oreochromis niloticus)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Efeito do tocoferol no desempenho e na estabilidade lipidica da tilápia nilotica (Oreochromis niloticus)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Desempenho produtivo e resistência ao estresse pelo frio da tilápia do Nilo alimentada com dietas suplementadas com levedura autolisada e zinco

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Silagem ácida de resíduos da filetagem de tilápias em dietas de alevinos de piauçu Leporinus macrocephalus

Pós-graduação em Aquicultura - FCAV

Suplementação de lisina e metionina em dietas práticas com baixo nível protéico para o crescimento inicial de alevinos do pacu (Piaractus mesopotamicus (Holmberg, 1887)

Pós-graduação em Aquicultura - FCAV

Soja crua em dietas para a Tilápia-do-Nilo (Oreochromis niloticus)

Pós-graduação em Aquicultura - FCAV

Vitamina E em dietas para reprodutoras de tilápia-do-nilo (Oreochromis niloticus)

Pós-graduação em Aquicultura - FCAV