Efeito da utilização de diferentes promotores de crescimento sobre o desempenho de suínos nas fases de pós-desmame

Abstract

The objective of this work was to evaluate the effect of different types of growth promoters in the diet of pigs in nursery phase. The performance test was conducted in the Pig Farming sector of the Animal Science Department of the Federal Rural University of Pernambuco. The handling and treatment of the animals followed the guidelines of the Ethics Committee on the Use of Experimental Animals, under license number 6272191120. A total of 48 weanling pigs, from 25 to 81 days of age, were used in a randomized block design, with four treatments and six blocks representing the repetitions, the blocking factor used was the piglet weight. The treatments consisted of a reference diet based on corn and soy, without addition of antimicrobial (CO), a reference diet with the addition of antimicrobials Zinc Bacitracin/Florphenicol/Enrofloxacin (C+A), a reference diet with addition of 0 .5% organic acids (AO) and a reference diet with addition of moringa seed oil (Basal + 500ppm) (OM). For performance evaluation, daily feed intake (CRD), daily weight gain (GPD) and feed conversion (CA) were evaluated. Data were submitted to normality, homoscedasticity, and analysis of variance tests by the PROC MIXED of SAS. Duncan's test was used for the performance means, it was observed that there was no statistical difference between the promoters for the different variables tested and due to the lack of sanitary challenge in the present study, it was concluded that the addition of any would not be necessary. of these additives in the diet of the animals, since the animals that received the control diet showed the same performance as the supplemented animals.