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| Wu,L; Huang,X; Shi,K; Tan,R. |
| Lutein supplements are often used to pigment and enrich layer chicken eggs. This experiment was conduced to compare the bioavailability of free and esterified lutein, by depletion method. Forty chickens were randomly divided into two groups. After 2 weeks of washout period, when all birds were fed the same low lutein basal diet, the two groups were fed for another 2 weeks with diets supplemented with free lutein or esterified lutein. Two experimental diets were supplemented with the same amount of 15 mg lutein/kg. On day 0 (baseline) and days 3, 7, and 14, birds fasting morning plasma samples were collected and stored for lutein analysis by high performance liquid chromatography method (HPLC). Results showed that: 1) Plasma lutein concentration increased... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioavailability; Depletion method; Free lutein; Layer hens; Lutein ester. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000200004 |
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| Espinosa,Ivette; Colas,M; Vichi,Joivier; Báez,M; Martínez,Siomara. |
| Respiratory infection is the most serious disease affecting poultry and causing great economic losses to the poultry industry worldwide. In avian host, several microorganisms of the genus Pasteurella (P. multocida, P. gallinarum and P. anatipestifer), Bordetella (B. avium) and Avibacterium paragallinarum) were involved in respiratory diseases complex. Ornithobacterium rhinotracheale is a recently discovered bacterium, of worldwide distribution in commercial poultry, in which it is associated to respiratory diseases and it is also found in wild birds. Airsacculitis and pneumonia are the most common symptoms of infection with O. rhinotracheale. Isolation and identification of pathogenic bacteria associated to respiratory diseases were carried out from a... |
| Tipo: Journal article |
Palavras-chave: Pasteurella multocida; Escherichia coli; Ornithobacterium rhinotracheale; Layer hens. |
| Ano: 2011 |
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0253-570X2011000100006 |
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