Use of 25-hydroxycholecalciferol in Diets of Broiler Chickens: Effects on Growth Performance, Immunity and Bone Calcification
| Autor: | Gabriela Gómez-Verduzco, Rene Morales-López, Ernesto Avila-Gozàlez |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | The Journal of Poultry Science, Vol 50, Iss 1, Pp 60-64 (2013) |
| Druh dokumentu: | article |
| ISSN: | 1346-7395 1349-0486 |
| DOI: | 10.2141/jpsa.0120071 |
| Popis: | An experiment was conducted in mixed sexes broiler chickens 1-d-old (Ross 308) to investigate the effects of 25-hydroxycholecalciferol (25-OH-D3) on growth performance parameters, immunity and bone calcification. A completely randomized design with 4 experimental diets was used: 1) diet with cholecalciferol (VIT-D3) at 200 IU/kg of feed (NRC-1994 level); 2) diet with 25-OH-D3 at 69 μg/kg of feed; 3) diet with VIT-D3 at 2000 IU/kg of feed (commercial level); and 4) as diet 3+25-OH-D3 at 69 μg/kg of feed. Experimental treatments consisted in 6 repetitions of 10 chickens each. On 21 d of trial, chickens fed diets with VIT-D3 at commercial level (with or without 25-OH-D3) increased the BWG (P |
| Databáze: | Directory of Open Access Journals |
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