2015
DOI: 10.1590/s1519-99402015000200011
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Desempenho, morfometria duodenal e histopatologia do fígado de frangos de corte alimentados com dietas contendo diferentes níveis de selênio orgânico em condições de estresse calórico

Abstract: A pesquisa foi desenvolvida para avaliar o desempenho, a morfometria duodenal e as alterações histopatológicas do fígado de frangos de corte, alimentados com dietas contendo diferentes níveis de selênio (0,5; 1,1; 1,7; 2,3; 2,9 e 3,5ppm de Se/kg de ração), criados no período de 1 a 21 dias de idade, em condições de estresse calórico. As aves receberam dietas isonutritivas à base de milho e farelo de soja, formuladas para atender as exigências nutricionais, exceto para o selênio. A partir de uma dieta basal foi… Show more

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Cited by 4 publications
(3 citation statements)
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“…The results of the literature regarding the performance of broilers supplemented with chelated or inorganic sources are inconsistent [25][26][27][28][29]. In experimental conditions, the source of minerals used may not affect the productive performance of broiler chickens.…”
Section: Discussionmentioning
confidence: 99%
“…The results of the literature regarding the performance of broilers supplemented with chelated or inorganic sources are inconsistent [25][26][27][28][29]. In experimental conditions, the source of minerals used may not affect the productive performance of broiler chickens.…”
Section: Discussionmentioning
confidence: 99%
“…Fasting causes changes that can compromise digestive activity (Ostaszewska et al 2006), causing a reduction in villi height and length and reducing the area of epithelium, which, as a consequence, decreases absorption capacity (Shaibani et al 2013). The reduction in the length and perimeter of the villi indicates a lack of food in the digestive tract (Green and McCormick 1999), while the increase in these measures can be understood as an improvement in the integrity of the mucosa (Carvalho et al 2011), since the balance between renewal and loss of cells, which normally occurs in the intestine, maintain villi size and digestive and intestinal absorption capacities (Ferreira et al 2014).…”
Section: Intestinal Villimentioning
confidence: 99%
“…Studies on mineral supplementation of broiler diets do not always show consistent results, especially in relation to performance indices (25,26) . However, most results indicate that minerals supplied in more bioavailable forms are effective and can advantageously replace inorganic forms.…”
Section: Resultsmentioning
confidence: 96%