This study aimed to assess the histomorphometry of the intestinal portions (duodenum and jejunum) in broilers supplemented with probiotic, and histological parameters of their immune system components. Rhizomucor spp. originated from samples of the intestinal content in Cobb 500 chickens was evaluated; these fungi were submitted to performance assay and selected based on in vitro probiotic characteristics. Complete randomized design was used (3 treatments × 7 replicates; 18 birds per experimental unit). One bird at 21 and 42 days of age was sacrificed in each unit and the organs were sampled. In all samples, fixation was conducted followed in order by dehydration and diaphanization; analyses were conducted by light microscopy and histomorphometry, and search was performed for spots indicating the lesion's presence. At 21 days, the duodenum villus height was higher in the group receiving Rhizomucor spp. probiotic, and the jejunum villus height was significantly increased in both the control and Rhizomucor spp. probiotic groups. At 42 days, difference of the duodenum crypt depth was observed in the group receiving commercial probiotic. With regard to the tissue changes of the intestines, spleen, and bursa, no histological alterations were observed at 21 days in all birds (100%) receiving Rhizomucor spp. probiotic, while alteration of the bursa was observed at 42 days in two animals. Inclusion of probiotic Rhizomucor spp. in the diet of broilers promoted an increase in the height of the villi after 21 days, and any influence of the probiotic was resolved after 42 days of age.
The objective was to know the profile of the consumer and to evaluate the acceptance, intention of purchase and preference of the honey of five different floral origins. The attributes acceptance tests (aroma, taste, appearance, viscosity, overall impression) were evaluated using a structured nine-point scale and those with a five-point structured scale. The results of the consumer profile were evaluated in percentage. The results of acceptance and intention to purchase were submitted to analysis of variance and the differences of the means compared by Tukey test at the level of 5% of significance. The order-preference results were analyzed using the Friedman test. The majority of the tasters: are female (59%); Consumes honey (79%); Does not know how to differentiate traditional honey from organic (64%); Buy organic honey (89%); Knows (67%), consumes (75%) and will buy (78%) honey from the local producer; Prefers to buy (67%) and consume (72%) honey with seal of the Federal Inspection Service. Most consumers are knowledgeable about honey, but do not usually read product labels. Regardless of the flowering type, all honey samples had a good acceptance (7.04 to 7.86) for all parameters evaluated and good intention to buy (3.76 to 4.14). Honey from wildflowers was more preferred when compared to orange blossom, sertão and grapevine. Regardless of the type of flowering, all the samples had 73 Colloquium Agrariae, vol. 13, n. Especial 2, Jan–Jun, 2017, p. 72-82. ISSN: 1809-8215. DOI: 10.5747/ca.2017.v13.nesp2.000211 an acceptability index (IA) above 70%. Therefore all samples will be accepted by the consumer public.
Objetivou-se avaliar o efeito da sanitização, temperatura e período de armazenamento sobre a qualidade física e microbiológica dos ovos de galinha produzidos no município de Itaberaí, Goiás, Brasil. Foram utilizados os delineamentos inteiramente casualizado com dois arranjos fatoriais, sendo: 2x5, que considerou dois locais de armazenamento e cinco tempos de estocagem, com vinte e quatro ovos por repetição; 2x2, que considerou duas linhagens de poedeiras e dois procedimentos (lavados e não lavados), com dez repetições. Foram analisadas as qualidades físicas e microbiológicas de um total de 720 ovos de poedeiras das linhagens Hisex White e Hisex Brown. Os dados obtidos foram submetidos à análise de variância, para as variáveis microbiológicas utilizou-se o teste 't' de Student e para as variáveis físicas foi utilizado o teste de Tukey a 5% de significância, com o auxílio do software estatístico SISVAR®. Os resultados da qualidade física dos ovos de ambas as linhagens de poedeiras mostraram que os ovos armazenados em temperatura ambiente apresentaram baixa qualidade interna em comparação com os ovos refrigerados, por um período de 1, 7, 14, 21 e 28 dias de estocagem. A qualidade microbiológica da superfície da casca e conteúdo dos ovos lavados mostrou-se eficaz em comparação ao não lavados. Diante disso, o presente estudo relata a importância da lavagem e refrigeração dos ovos comerciais.
Objetivou-se avaliar os efeitos da inclusão de diferentes níveis de açafrão em pó (Curcuma longa L.) na ração de frangos de corte em comparação ao antibiótico promotor de crescimento. Foram utilizados 720 pintos de corte de 1 dia, da linhagem Cobb, distribuídos em delineamento inteiramente casualizado, em arranjo fatorial 5x2 (cinco tratamentos e dois sexos), com quatro repetições e 18 aves por unidade experimental. Os tratamentos foram: ração basal (RB) + 150 g/kg de bacitracina de zinco, RB sem aditivos, RB + 3,3 g/kg de açafrão, RB + 6,6 g/kg de açafrão e RB + 10 g/kg de açafrão. Avaliou-se o desempenho (peso vivo, consumo de ração, ganho de peso, conversão alimentar e mortalidade), rendimento de carcaça, peso relativo de vísceras e a rentabilidade econômica. Os dados obtidos foram submetidos à ANOVA e as médias dos tratamentos submetidas à análise de regressão e teste de Dunett a 5%. As aves alimentadas com açafrão não apresentaram diferenças entre as variáveis de desempenho, rendimento de carcaça e peso relativo de vísceras, quando comparadas às aves suplementadas ou não com antibiótico. A inclusão de 3,3 g/kg de açafrão apresentou índice de rentabilidade semelhante ao tratamento RB + 150 g/kg de bacitracina de zinco. Portanto, a suplementação de açafrão em pó na dieta de frangos de corte tem ação no desempenho produtivo, no rendimento de carcaça e de cortes nobres, peso relativo de vísceras e comprimento de intestinos das aves semelhante ao antibiótico promotor de crescimento, sendo o nível 3,3 g/kg o que apresenta a melhor rentabilidade econômica. Palavras-chave: aditivo fitogênico; Curcumina; promotor de crescimento; rendimento de carcaça; viabilidade econômica. TURMERIC POWDER (Curcuma longa L.) IN THE FEED OF BROILER ABSTRACT This study aimed to evaluate the effects of inclusion of different levels of turmeric powder (Curcuma longa L.) in the feed of broilers. 720 Cobb broiler chicks of 1 day were used, distributed in a completely randomized design in a factorial arrangement 5x2 (five treatments and both sexes), with four replications and 18 birds per experimental unit. The treatments were: basal diet (BD) + 150 g/kg of zinc bacitracin, BD without additives, BD + 3.3 g/kg of turmeric, BD + 6.6 g/kg of turmeric and BD + 10 g/kg of turmeric. Were evaluated performance (live weight, feed intake, weight gain, feed conversion and mortality), carcass yield, viscera weight and economic profitability. The data were submitted to ANOVA and means of treatments submitted to regression analysis and test Dunett 5%. Broilers fed with turmeric showed no differences between the performance variables, carcass yield and relative weight of viscera when compared to birds supplemented or not with antibiotics. Inclusion of 3.3 g/kg of turmeric presented profitability index similar to the treatment RB + 150 g/kg zinc bacitracin. Therefore, supplementation of turmeric powder in broiler diet has action on productive performance, carcass yield and the relative weight of viscera and length of the intestines of birds similar to the...
The objective of this study was to evaluate the quality of meatballs prepared with capybara meat and different concentrations of pork bacon. Three formulations of capybara meatballs were prepared: one with 100% of capybara meat and the other with 10 and 20% of pork bacon added. Coliforms were carried out at 35 and 45ºC of the meatball samples, in addition to pH, titratable acidity, moisture and ash determinations. In relation to the physical-chemical determinations, the results were submitted to analysis of variance and the differences of the means compared by Tukey test at the 5% level of significance. The results of the microbiological analyzes were evaluated in a descriptive way. The experimental design was completely randomized. All physicalchemical and microbiological determinations were performed in triplicate. Coliform analyzes showed that the meatballs were fit for consumption and the physicochemical results are in acceptable levels.
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