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Use of vitamin D to reduce lameness in broilers reared in harsh environments Rev. Bras. Ciênc. Avic.
Nääs,I de A; Baracho,M dos S; Bueno,LGF; Moura,DJ de; Vercelino,R do A; Salgado,DD.
In tropical poultry-producing countries, poultry houses usually have little environmental control. This study investigated the effect of dietary vitamin D on the incidence of leg abnormalities of a fast-growing broiler strain reared under harsh conditions. In this study, 300 one-day-old male broilers were distributed in two treatments with three replicates of 50 birds each. One group was fed a placebo and the other group was fed 25-hydroxycholecalciferol (25-OH-D3) in a soluble form. The environmental variables were weekly recorded during until birds were 49 days old. Birds were weekly gait scored, and their walking speed and vertical force while walking were assessed. Post-mortem examination was performed and skeletal lesions were assessed. Control birds...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Feet force measurement; Leg abnormalities; Vitamin D supplement.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000300002
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