Tesis Medicina Veterinaria
Permanent URI for this collectionhttp://repositorio.uta.edu.ec/handle/123456789/36415
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Item Efecto del Rhodobacter Sphaeroides sobre los índices productivos y digestibilidad aparente en pollos de engorde(2025-02) Maliza Pacha Nelly Elizabeth; Guerrero López Jorge RicardoThe objective of this study was to evaluate the addition of Rhodobacter Sphaeroides in different doses on the productive índices and the apparent digestibility of nutrients. For this purpose, four treatments werw used; T0 control group without the addition of R. Shpaeroides; 1 ml of R. Shpaeroides; T2 with 2 ml of R. Shpaeroides and T3 with 3 ml of R. Shpaeroides per liter of wáter. For the study, 200 one- day- old male and female broiler chickens of the Cobb 500 line were used. Through a completely randomized design with 10 repetitions per treatment and 5 animals per repetition. The data obtained were evaluated with the Infostat statistical program using the Tukey test with a significance leve lof 95 %. The productive period was divided into four stages: initial (0- 10 days); growth (11- 22 days); finisher I (23- 42 days) and finisher II (43- final), while the evaluation of the apparent digestibility of nutrients was carried out in a periodo f 35- 42 days of age. Regarding the results, T3 presented better result in terms of final weight (3052.29 g); weight gain (3012.61 g) and European Efficiency Index (318.72), while feed consumption (g) anda feed conversión index did not present significant differences (P< 0.05). Regarding the apparent digestibility of nutrients, there were no major significant differences (P> 0.05).