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Clímaco,Winnie Luiza dos Santos; Melo,Érica de Faria; Vaz,Diego Pereira; Saldanha,Mariana Masseo; Pinto,Maria Fernanda Vieira da Silva; Fernandes,Letícia Carolina Cleto; Baião,Nelson Carneiro; Oliveira,Letícia Goulart de; Sant’Anna,Felipe Machado de; Souza,Marcelo Resende de; Lara,Leonardo José Camargos. |
Abstract: The objective of this work was to evaluate the effect of different disinfection procedures as alternatives to formaldehyde fumigation on eggshell microbial load and quality of eggs from a 42-week-old Cobb commercial breeder flock. A total of 10,080 clean eggs collected from the nests were randomly distributed in a randomized complete block design, among the following treatment groups: 13.33 g m-3 formaldehyde fumigation, 5-10 ppm ozone fumigation, 6.36 mW cm-2 UV-C light irradiation, spraying with 1.56% hydrogen peroxide, spraying with 0.13% peracetic acid, spraying with water (wet control), and no disinfection procedure (dry control). Per treatment, eight samples of four eggs each were collected before and after the disinfection procedure, in... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacterial count; Ozone; Resistance force; Sanitizers; Thickness; UV light. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001001177 |
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Sousa,Lorena Salim de; Carvalho,Thiago Soares Martins; Nogueira,Flávia Aparecida; Saldanha,Mariana Masseo; Vaz,Diego Pereira; Bertechini,Antônio Gilberto; Baião,Nelson Carneiro; Lara,Leonardo José Camargos. |
ABSTRACT The objective of this study was to ascertain the influence of different dietary fiber sources and the usage of xylanase on diet of commercial layers and their influence on productive performance, egg quality, and digestive organ biometry. A total of 864 Lohmann® White hens was fed diets with three different fiber sources (wheat bran, soybean hull, or coffee husk) with or without xylanase inclusion (concentration of 160,000 BXU/g) in a 3×2 factorial arrangement, with six replicates of 24 birds each, from 25 to 44 weeks of age. There were no interactions between dietary fiber and xylanase inclusion. The enzyme supplementation did not influence any parameters evaluated. There were dietary fiber effects on body weight gain, viability, egg weight,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative fiber; Enzyme; Laying hen; Non-starch polysaccharides; Viscosity. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100504 |
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Castro,Fernanda Lima de Souza; Baião,Nelson Carneiro; Ecco,Roselene; Louzada,Mário Jefferson Quirino; Melo,Érica de Faria; Saldanha,Mariana Masseo; Triginelli,Marcela Viana; Lara,Leonardo José Camargos. |
ABSTRACT This study was conducted to evaluate the effect of two levels of vitamin D3 with or without 1,25- dihydroxycholecalciferol (1,25(OH)2D3) on live performance and bone quality of broiler chickens. For that, we used a completely randomized design in a 2 × 2 factorial arrangement, with eight replicates of 30 Cobb®500 male broiler chicks each (n = 960). The two levels of vitamin D3 and the addition or not of 0.5 μg 1,25(OH)2D3/kg were considered as main factors. The vitamin D3 levels were: 2500/2000 IU/kg and 1250/1000 IU/kg for the starter (1 to 21 days) and grower (22 to 40 days) phases, respectively, with the first representing the levels used in industry (100%) and the second, a reduction in 50% of those levels. The 1,25(OH)2D3 source was Solanum... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broilers; Growth performance; Solanum glaucophyllum. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100506 |
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