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Effects of a dietary added formaldehyde-propionic acid blend on feed enterobacteria counts and on growing pig performance and fecal formaldehyde excretion
The purpose of this study was to evaluate the effects of a dietary added formaldehyde-propionic acid blend on feed enterobacteria counts and on growing pig performance and fecal formaldehyde excretion. Forty pigs (34.2±1.8kg BW) were used in a randomized complete block design experiment with four tr...
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Published in: | Ciência rural 2015-03, Vol.45 (3), p.474-479 |
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Main Authors: | , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The purpose of this study was to evaluate the effects of a dietary added formaldehyde-propionic acid blend on feed enterobacteria counts and on growing pig performance and fecal formaldehyde excretion. Forty pigs (34.2±1.8kg BW) were used in a randomized complete block design experiment with four treatments, five replications per treatment and two animals per experimental unit (pen). The treatments were: 0.0, 1.0, 2.0, and 3.0g of blend kg-1 of feed. No effects (P>0.05) of dietary added blend levels were observed on average daily gain, average daily feed intake and feed:gain ratio during 1 to 14 and 1 to 28 days of experiment. Increasing dietary levels of blend reduced quadratically (P0.05) of blend on fecal formaldehyde excretion on the 28th day of the experimental period. Therefore, the addition of dietary formaldehyde-propionic acid blend up to 3.0g kg-1 of feed reduces the Enterobacteriaceae counts until the 14th day after feed mixing, without any effects on growing pig performance and fecal formaldehyde excretion
O objetivo deste estudo foi avaliar os feitos de um blend de formaldeído e ácido propiônico em dietas para suínos em crescimento sobre a contagem de enterobactérias na ração armazenada, o desempenho zootécnico e a excreção fecal de formaldeído. Quarenta suínos (34,2±1,8kg de peso vivo) foram utilizados em um experimento em blocos completos casualizados, com quatro tratamentos, cinco repetições por tratamento e dois animais por unidade experimental (baia). Os tratamentos foram: 0,0, 1,0, 2,0 e 3,0g de blend kg-1 de ração. Não foram observados efeitos (P>0,05) dos níveis de blend sobre o ganho diário de peso, consumo diário de ração e conversão alimentar durante os períodos 1 a 14 e 1 a 28 dias de experimento. O aumento dos níveis de blend na dieta reduziu quadraticamente (P |
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ISSN: | 1678-4596 1678-4596 |
DOI: | 10.1590/0103-8478cr20131660 |