Browsing by Author "Villacís Cabascango, Hernán Xavier"

Filter results by typing the first few letters
Now showing 1 - 1 of 1
  • No Thumbnail Available
    Item
    Efecto de la harina de azolla (Azolla caroliniana), sobre los parámetros productivos en pollos cobb 500
    (2018) Villacís Cabascango, Hernán Xavier; Aragadvay, Gonzalo
    EXECUTIVE SUMMARY The present investigation was carried out in the San Alfonso neighborhood, Huachi Grande parish of Ambato canton, province of Tungurahua, with geographical coordinates 1º 19' 0 "south latitude and 78º 38'52" west longitude, at an altitude of 2900 meters above sea level, an assay was carried out with 200 chickens of Cobb 500 line of one day of age and continued until day 49 of age, with the purpose of evaluating the effect of different levels of inclusion of Azolla flour (Azolla caroliniana) in the diet , about the productive parameters. The chickens were assigned to 4 dietary treatments; T1 (2% azolla flour), T2 (4% azolla flour), T3 (6% azolla flour) and T0 (control, without addition of azolla flour). The experimental design was used completely at random, with four treatments and five repetitions. The analysis of variance, Tukey significance test at 5%, was carried out to differentiate between treatments. The economic analysis was carried out by calculating the cost benefit ratio (RBC). The best results were obtained in the treatments that were supplied with the diet consisting of 6% inclusion of azolla flour (T3) with a greater gain in weight, both in the initial stage (265.61g), and in the growth stage (1393.07g), and in the fattening stage (1212.09g), also reporting better feed conversion in the initial stage (1.74), as in the growth stage (1.75), and in the fattening stage (2.11). The evaluation of the mortality allowed to establish that an acceptable mortality was presented during the trial; so that Azolla flour levels did not cause problems of digestibility and palatability, being the feeding of the birds in the stages of growth and fattening the most appropriate. With respect to food consumption, it is concluded that the total amount of food consumed by each bird during the development of the trial was 5448.73 g in treatment T1, 5425.55 g in treatment T2, 5416.44 g in treatment T3 and 5401.76 g in the control treatment. The best European efficiency index was for the T3 with a value of 283.73. From the economic analysis it is deduced that, the treatment that was administered 6% azolla flour (T3), reached the highest benefit-cost ratio of 0.20, where the benefits net obtained were 0.20 times what was invested, being from the economic point of view the most profitable treatment.