Efecto del deshidratado molido de <b><i>eryngium foetidum </i></b> en los parámetros productivos y control bacteriano en los pollos cobb 500

Abstract

The present research work was carried out in the poultry production halls of the Farm "Santa Inés", belonging to the Academic Unit of Agricultural Sciences of the Technical University of Machala, of the province of El Oro, whose objective was to evaluate the effect of the inclusion of ground dehydrated Eryngium foetidum in feed of mixed Cobb 500 chickens on their productive parameters and bacterial control at the fecal level. To carry out this experiment, an antibiotic-free growth promoter (APC) was used, which was purchased in a "Balmar" processing plant located in Cantón Balsas, El Oro Province. A completely random design was applied (DCA) ), for 6 weeks, 200 mixed Cobb 500 chickens were evaluated, randomly distributed in 5 treatments with four experimental Units of 10 animals (40 birds per treatment). The distribution of the groups was: Treatment 1 (control control without any addition of ground dehydrated E. foetidum), Treatment 2 (inclusion of 0.10% ground dehydrated E. foetidum in the mixed chicken feed Cobb 500), Treatment 3 (inclusion of 0.25% dehydrated milled E. foetidum), Treatment 4 (inclusion of 0.50% milled dehydrated E. foetidum 0.50%), Treatment 5 (inclusion of 0.75% milled dehydrated) of E. foetidum), managed according to the established standards of poultry production for the tropics. The variables evaluated were: live weight of the animal (g), feed intake (g), water consumption (g), feed conversion and carcass weight (post-bleed weight, weight without feathers, weight without head-neck- legs, weight without viscera and breast weight). To obtain the weight data of the carcass, the sacrifice was made by cervical dislocation and post-bleeding of 2 birds taken at random by experimental Unit, 8 per treatment for a total of 40 chickens. For the analysis of the results of each variable, a one-factor analysis (ANOVA) was used and Fisher's LSD procedure was used to discriminate the means, with a confidence level of 95.0% using the statistical program STATGRAPHICS Centurion XVI. To obtain weight data, a CAMRY brand scale balance was used with a margin of error of ± 1 g. The laboratory procedure to determine the CFU (colony forming units) was taken 5 g of feces for each of the treatments and their repetitions, using small pens with a ceramic floor previously disinfected with alcohol, inside two chickens were introduced at random for the collection of the sample, in the laboratory, total Flora and Colimetry sowings were carried out in agar-agar and Mackonkey media, taken to incubation for 24 hours in the second and sixth week. The results show that the addition of ground dehydrated E. foetidum in the balanced feed of the Cobb 500 chickens, has no effect on the productive parameters, but they do show a significance, and in the bacterial control carried out in two crops (second and sixth). week) from the feces of the chickens shows a reduction of the CFU in the planting of total flora and colimetry in treatments 4, treatments 2, treatment 3 and treatment 5 to the sixth week data obtained by using the Chi test -quared with the P-Value in the ANOVA table.