Enhancing calcium and phosphorus utilization in broiler chickens through cholecalciferol in sequential calcium-phosphorus-deficient diets
| Autor: | Abdul Jabbar, Muhammad Tahir, Shabana Naz, Abdulwahed Fahad Alrefaei, Asad Sultan, Samia Abdelrahaman, Maria Selvaggi |
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| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Journal of Applied Animal Research, Vol 52, Iss 1 (2024) |
| Druh dokumentu: | article |
| ISSN: | 09712119 0974-1844 0971-2119 |
| DOI: | 10.1080/09712119.2024.2337177 |
| Popis: | ABSTRACTWe hypothesized that both performance and bone mineralization would show improvements when cholecalciferol supplementation was increased above the recommended NRC (1994) [Nutrient requirements of poultry, 9th rev. ed. Washington, DC: National Academy Press] level. In this study, male Ross 308 chickens (n = 540) were supplemented with diets containing either a low level of 200 IU/kg or a higher dose of 5,000 IU/kg of cholecalciferol (VD). The results showed that during the starter phase, weight gain was significantly higher in VD5000 and the control compared to VD0, with significantly lower feed intake in VD0. Consequently, FCR was significantly better in VD200 and VD5000 compared to VD0. In the finisher phase, weight gain, feed intake, and FCR were significantly higher in VD200 and VD5000 compared to VD0. Tibia ash, Ca, and P were significantly higher in VD5000 compared to VD200. Carcass weight was significantly higher in VD200 and VD5000 compared to VD0. Total tract N retention and GE were significantly higher in VD5000 compared to VD0. The study concludes that cholecalciferol supplementation at 5000 IU/kg enhances growth performance, tibia mineralization, and nutrient digestibility in broilers fed with 30% reduced Ca and P in their diets. |
| Databáze: | Directory of Open Access Journals |
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