EVALUATION OF THE “ENZYMMIX F” PRODUCT AS AN ADDITIVE FOR BROILERS REARED IN AN ANTIBIOTIC-FREE SYSTEM

Dayana Cristina de Oliveira Pereira, Gustavo do Valle Pereira, Luiz Carlos Demattê Filho, Jorge Konrado Xavier de Melo

Resumo


Abstract: This experiment was undertaken to compare the effects of using the Enzymmix F product with a Brazilian enzyme blend in diets with different nutritional levels. A total of 1,080 male broiler chicks were distributed into a randomized-block design with a 2 × 3 factorial arrangement consisting of two nutritional levels (regular and reduced) and three enzyme complexes (Enzyme Blend, Enzymmix F, and the combination of both). We evaluated the birds' performance in the phases of 1 to 21 and 1 to 42 days of age; yields of carcass and cuts; and intestinal integrity. During the analyzed periods, no significant difference was observed for the performance parameters considering the "enzyme" factor. However, the reduction in the nutritional level of the diet resulted in inferior performance in both periods. There was no statistical difference for the yields (%) of carcass and cuts. Enzymmix F provided the greatest villus height in the jejunum segment. The use of the Enzyme Blend in the nutritionally reduced diet led to a lower crypt depth. In conclusion, Enzymmix F increased the yield of wings (g) and the villus height in the jejunum.


Palavras-chave


nutrition, Gallus gallus

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Direitos autorais 2019 Revista Brasileira de Agropecuária Sustentável

Licença Creative Commons
Esta obra está licenciada sob uma licença Creative Commons Atribuição - Não comercial - Sem derivações 4.0 Internacional.

ISSN Online 2236-9724, ISSN Impresso 2317-5818, ISSN Cd rom 2178-5317