Decreased levels of vitamin D-3 and supplementation with 1,25-dihydroxyvitamin D-3-glycoside on performance, carcass yield and bone quality in broilers

作者：Alves Osvanira dos Santos; Lima Cahate Ligia Fatima; Borges Araujo Alexandre Herculano; Alfonso Torres Cordido Karoll Andrea; Reis Tulio Leite; Calderano Arele Arlindo

来源：Ciencia Rural, 2018, 48(8): e20170705.

DOI：10.1590/0103-8478cr20170705

• bone growth
• bone strength
• calcitriol
• poultry
• Solanum glaucophylum

An experiment was performed to evaluate the effect of decreased levels of vitamin D-3 in the premix and 1,25-dyhydroxyvitamin D-3-glycoside (1,25(OH)(2)D-3-glycoside) supplementation on performance, carcass yield and bone quality in 42d old broilers. Seven-d-old male chickens Cobb500 (R) were distributed in a randomizeddesign with six treatments: a control diet with inclusion of vitamin D-3 in the premix, without supplementation of 1,25(OH)(2)D-3-glycoside, and five diets with decreased levels of vitamin D-3 (100%, 75%, 50%, 25% and 0% about the control) plus the addition of 1,25(OH)(2)D-3-glycoside, 50g ton(-1) of diet. The main results were to reduce the tenor of Vitamin D-3 in the premix when the addition of 1,25(OH)(2)D-3 -glycoside did not affect (P>0.05) the performance, carcass yield and bone quality variables. However, performance (feed intake, gain weight, feed conversion), yield (warm carcass weight) and bone quality (dry weight, length, mineral matter and breaking strength) of broilers fed with diets without vitamin D-3 in the premix and with addition of 1,25(OH)(2)D-3-glycoside, which was the single source of vitamin D, had as a result very low (P<0.05) values comparing to the control. For the purposes of the present research, it was concluded that is possible the reduction of vitamin D-3 tenor in the premix up to 75% when the diet of male broilers is supplemented with 1,25(OH)(2)D-3-glycoside. However, the use of 1,25(OH)(2)D-3-glycoside as a single source of vitamin D, as tested here, is not recommended for broilers diets.

• 出版日期2018