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| Rivera,Diego Fernando Remolina; Bertechini,Antonio Gilberto; Oliveira,Tiago Ferreira Birro; Castro,Solange de Faria; Oliveira,Henrique Braga; Bobadilla-Mendez,Manuel Fernando. |
| The effect of cholecalciferol (D3) and 25-hydroxycholecalciferol (25-OHD3) as isolated or associated sources of vitamin D (100%-0%, 75%-25%, 50%-50%, 25%-75%, 0%-100%) on the productive performance, egg quality, and bone characteristics was evaluated in white egg-laying hens fed two levels of calcium (Ca) and phosphorus (P) in the basal diet (BD) (BD1 = 0.38% Ca - 0.36% available P and BD2 = 3.2% Ca - 0.30% available P). Nine hundred and sixty Dekalb White hens (24 weeks old) were distributed into 80 cages, under a completely randomized factorial design for 16 weeks. The use of associated sources of vitamin D reduced the feed intake and feed conversion ratio, as well as BD1, which also increased the egg production and egg mass. The association of vitamin D... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vitamin sources; Productive performance; Eggshell quality; Bone characteristics. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000600006 |
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| Oliveira,Tiago Ferreira Birro; Bertechini,Antônio Gilberto; Philomeno,Renato; Silva,Vanessa Avelar. |
| ABSTRACT: An experiment was conducted to study the effects of two sources and dietary levels of selenium (Se) on performance, Se concentration and glutathione peroxidase activity in plasma and liver of piglets post weaning. A total of 126 weaned pigs male and female Large White × Landrace, at average body weight of 7.2±0.67kg were allotted to seven treatments in a randomized block design, with two Se sources (organic and inorganic), inclusion levels, two levels for the inorganic source (0.30 and 0.60ppm) and four for the organic source (0.15, 0.30, 0.45 and 0.60ppm) and one control diet without Se supplementation containing 0.095ppm, and six replicates of three animals per pen. The experimental period was 35 days post-weaning. The organic source contained... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enzyme activity; Glutathione peroxidase; Hepatic selenium; Plasmatic selenium. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001200653 |
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