| Journal: | Veterinaria México OA |
| Database: | PERIÓDICA |
| System number: | 000439058 |
| ISSN: | 2007-5472 |
| Authors: | Cortes Cuevas, Arturo1 Arce Menocal, José2 Ávila González, Ernesto1 López Coello, Carlos1 |
| Institutions: | 1Universidad Nacional Autónoma de México, Facultad de Medicina Veterinaria y Zootecnia, Ciudad de México. México 2Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Michoacán. México |
| Year: | 2019 |
| Season: | Jul-Sep |
| Volumen: | 6 |
| Number: | 3 |
| Country: | México |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | Phosphorus (P) bioavailability, crude protein (CP), amino acid (AA) digestibility, and apparent metabolizable energy (AMEn) were determined in broiler chick diets, supplemented with one of two low-oil distiller’s dried grains with solubles (oil contents 6.54% and 5.35% for DDGS A and B, respectively). Diets were provided ad libitum in a mash form, from days 8 to 21 of age. In Experiment 1, one day old male broiler chicks (n=210) were assigned to one of 7 treatments, with 3 replicates of 10 birds each. Animals in treatment 1 (T1) were fed a basal diet formulated to be deficient in nonphytate P (0.14%). Birds in T2 and T3 received the basal diet supplemented with 0.05% or 0.10% of P from monodicalcium phosphate (MCP), respectively. Phosphorus from DDGS was added to diets in T4 (0.05% from DDGS A), T5 (0.1% from DDGS A), T6 (0.05% from DDGS B) and T7 (0.1% from DDGS B). Percent of inclusion of DDGS was dictated by total P content as determined by chemical analyses. Growth performance and P intake were assessed in all birds. Phosphorus bioavailability was determined using the slope ratio assay, with tibia ash as the response variable. For Experiment 2, one-day-old male broiler chicks (n=200), were assigned to 5 treatments with 4 replicates of 10 birds each. A sorghum-soya control diet was given to animals in T1. Treatments 2 and 3 included this same diet supplemented with either 5% or 10% of DDGS A. Birds in T4 and 5 received the control diet with either- 5% or 10% of DDGS B. Amino acid digestibility was measured from ileal contents in 7 euthanized birds from each group at day 21. Apparent metabolizable energy was determined in oven dried feces from all animals during the last 3 days of the experiment. Weight gain and feed consumption increased (P < 0.001) with larger inclusion of dietary P in birds from experiment 1. Relative P bioavailability for DDGS A and B was 72% and 86% respectively, from a P total content of 0.85% and 0.94%. Growth performance was s |
| Disciplines: | Medicina veterinaria y zootecnia |
| Keyword: | Pollos de engorda, Nutrición animal, Fósforo, Biodisponibilidad, Granos secos, Destilerías, Aceite, Energía metabolizable, Digestibilidad, Aminoácidos, Suplementos alimenticios |
| Keyword: | Poultry, Animal nutrition, Phosphorus, Biodisponibility, Dried grains, Amino acids, Digestibility, Metabolizable energy, Oil, Distilleries, Feeding supplements |
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