Aditivos não nutrientes na alimentação de codornas japonesas
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Data
2021-05-14
Autores
Gonçalves, Hortência César
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Universidade Federal do Espírito Santo
Resumo
The Brazilian production of quail eggs shows remarkable growth. Knowing this, nutrition is having to adapt to this condition, providing nutrients for the animal's performance to be satisfactory. On the other hand, it is observed that there are restrictions on the use of additives used in rations, with the aim of improving and/or providing conditions for optimizing performance. Therefore, alternatives have been sought to replace the antibiotic additive used in the feed as a performance enhancer. Thus, the objective of this work was to evaluate the use of prebiotics, probiotics, symbiotics and organic acids in the productive performance of Japanese quails. The experiment was conducted in the fur farming sector of the Fluminense Federal Institute – Bom Jesus do Itabapoana-RJ Campus, where productive parameters and egg quality were evaluated. A total of 486 laying Japanese quails (Coturnix coturnix japonica) were used, with an initial average weight of 151.1g ± 27.18g for 84 days, divided into four phases of 21 days. A completely randomized experimental design was used, with six treatments basal ration (RB) + antibiotic, RB + probiotic, RB + prebiotic, RB + symbiotic, RB + organic acid 1 (100 g/ton ration), RB + organic acid 2 ( 200 g/ton of feed), nine replicates and nine birds per experimental unit. The variables analyzed were laying rate, feed intake, feed conversion, egg mass, average egg weight, dozen eggs, absolute and relative yolk weight, albumen and shell, yolk and albumen index and haugh unit. Data were submitted to the Student-Newman-Keuls (SNK) mean test at a significance level of 5% probability. Orthogonal contrast analysis was used, using the R software (Language and Programming). There was no statistical difference between the analyzed parameters. Under the experimental conditions of the present work, probiotic, prebiotic, symbiotic and organic acid additives can replace antibiotics as a performance enhancer.
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Desempenho , produção , ovos