Meta-analytical study of the effect of fibers in neutral detergent and acidic detergent in the diet of finishing pigs

• Autor(a) principal: Da Silva Júnior, Joselito Bastos
• Data de Publicação: 2021
• Outros Autores: Fonseca Pascoal, Leonardo Augusto, Andretta, Ines, Da Silva, Marcos Kipper, Hauschild, Luciano [UNESP], Gomes, Bruna Kuhn, Franceschina, Carolina Schell
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1590/0103-8478cr2020104; http://hdl.handle.net/11449/233362
• topic: Backfat thickness; Carcass characteristics; Dietary fiber; Lignin; Performance

Performance and carcass traits of finishing pigs fed diets containing different levels of neutral detergent fiber (NDF) and acid detergent fiber (ADF) were evaluated through meta-analysis. The database was constructed using information from 24 papers, 113 treatments, and 2507 animals. Correlation and variance analyze were performed. The weight gain of the pigs showed a negative correlation (P < 0.01) with the dietary NDF content and with NDF consumption. The feed conversion ratio showed a positive correlation (P < 0.01) with the inclusion of ADF in the test ingredient and with the consumption of NDF and ADF. The backfat thickness showed a negative correlation (P < 0.05) with the NDF content in the diets. The analysis of variance showed that the performance of finishing pigs was not influenced (P > 0.05) by the inclusion of ingredients with high NDF content. Likewise, the inclusion of ingredients with high ADF content did not alter (P > 0.05) feed intake and feed conversion ratio. However, the use of ingredients with a high ADF content reduced (P < 0.05) by 4% the weight gain of the pigs. The use of ingredients with high concentrations of NDF and ADF negatively affect the weight gain and feed conversion of finishing pigs; however, the ADF-related fraction has a positive relationship with the reduction of the backfat thickness.