Determinación de biodisponibilidad de fósforo en gallos Lohmann Brown con diferentes niveles de fosfato

Abstract

The diet of birds has a low bioavailability of phosphorus because the inputs used are mainly of vegetable origin where phosphorus contents are high, but in animals they are used in low percentages, therefore it is necessary to use food supplements to avoid possible deterioration on bird health. The objective of this research was to determine the bioavailability of phosphorus in Lohmann Brown roosters with different levels of phosphate. The experiment was carried out at the AVIPAZ poultry farm, located in the Tungurahua province. Phosphorus bioavailability was evaluated by using three levels of phosphate (2,4,6) Kg/Tn and they were compared with a control treatment. A Completely Random Design was applied with 5 repetitions and the size of the experimental unit was 1 animal. To develop the experiment, balanced food (90 g) was supplied, in addition to water at will, this procedure was carried out daily for 60 days, and the daily weights of excess food were also measured to obtain the daily net consumption of food and the collection of the excreta of the animals was done twice a day, in the morning and afternoon in order to obtain a homogeneous sample. The results obtained from the present investigation were subjected to the following statistical analyzes: ADEVA analysis of variance, for the separations of means for the treatments. The Tukey test was applied at a significance level of P<0.05 and P<0.01. Finally, correlation and regression analysis was performed. It was concluded that the T1 (2Kg/Tn) presents the best results in terms of digestibility coefficients and presents a lower cost ($193.46).