Aplicación de probióticos en la alimentación de gallinas ponedoras en la primera etapa de producción

Abstract

Probiotics were applied to improve the production parameters in hens of the Lohmann Brown line at the peak production from week 18 to 26, using Bacillus Subtillis and Lincheniformis on a 500 g/Tn ration respectively for a control treatment. Four treatments and ten repetitions were performed; where each experimental unit was consisted of 5 hens giving a total of 200 hens in the study. The data were collected on a daily basis by analyzing each of the variables such as egg production, percentage of broken eggs, weight, egg mass, food conversion, the initial and final weight taking was also made, which was estimated in a way daily weight gain, all these data were subjected to an analysis of variance (ANOVA) and a separation of means according to Tukey with a level of significance of (P< 0.05), being reported that the control treatment (T0) was the best obtaining higher values in the variables: egg production 74,49 % egg weight 56.21 g, egg mass 42.33 g, food conversion 2.38 compared to other treatments, while in variables such as weight gain the best treatment was the mixture of Bacillus Subtillis + Lincheniformis (T3) with 8.56 g / day, and the percentage of broken eggs was observed a lower value in the application of Bacillus Lincheniformis (T2) with 1.2%. In the benefit / cost indicator, the control treatment (T0) was the best, reaching 1.03 dollars, indicating that for every dollar invested there is a gain of 3 cents. It is concluded that when applying probiotics there is no increase in the productive parameters of hens, but there is an increase in weight gain. It is recommended applying this type of probiotics over a longer period of time to help a better adaptation of the animals.