Uso de combinações de prebióticos em dietas de leitões recém-desmamados
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2020-02-10
Autores
Ramos, Denis Ricardo Avistá
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Universidade Estadual Paulista (Unesp)
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Este estudo teve por objetivo avaliar os efeitos do uso de diferentes misturas de prébioticos (β-glucano, Frutoligossacarideo - FOS, Galactoligossacarideo - GOS e Mananoligossacarideo - MOS) na dieta de leitões recém-desmamados sobre o desempenho, incidência de diarreia, morfometria do intestino delgado, microbiologia cecal e concentração de ácidos graxos de cadeia curta (AGCC) do cólon proximal. Para isso, foram utilizados 120 (5,90kg ± 0,24kg – Exp. 1) e 40 leitões recém-desmamados (6,05 ± 0,21kg – Exp.2), ambos com 21 dias de idade, num período experimental de 37 e 14 dias, respectivamente para os experimentos 1 e 2, distribuídos em delineamento experimental de blocos ao acaso, com cinco tratamentos e 8 repetições, com três animais (Exp. 1) e um animal (Exp. 2) por baia (unidade experimental). Os tratamentos em ambos experimentos foram: C = dieta basal (DB) com adição de 40ppm de colistina na forma sulfato de colistina (8%); MB = DB + MOS e β-glucano (2,0kg/t); GF91 = DB + MOS e β-glucano (1,0kg/t) + GOS e FOS (1,0kg/t) (relação GOS:FOS de 9:1); GF73 = DB + MOS e β-glucano (1,0kg/t) + GOS e FOS (1,0kg/t) (relação GOS:FOS de 7:3); GF55 = DB + MOS e β-glucano (1,0kg/t) + GOS e FOS (1,0kg/t) (relação GOS:FOS de 5:5). Para o desempenho, não houve diferença de tratamentos nos períodos de 0 a 16 e 0 a 29 dias, entretanto, no período de 0 a 37 dias, os animais do tratamento controle (C) tiveram melhor (P=0,0598) conversão alimentar (CA) em relação ao animais do tratamento GF55, não diferindo (P>0,06) dos demais tratamentos com prebióticos (MB, GF73 e GF91). Não houve diferença (P>0,06) para incidência de diarreia, morfometria intestinal e concentração de ácidos graxos de cadeia curta. Os animais do tratamento GF91 tiveram redução (P=0,0165) na quantificação de Escherichia coli do conteúdo cecal comparados aos animais do tratamento MB, não diferindo (P>0,06) dos demais tratamentos. Os resultados sugerem que as diferentes combinações de prebióticos foram eficientes na manutenção do desempenho e saúde intestinal dos leitões desmamados, podendo portanto, ser alternativa para a substituição de antimicrobianos como promotores do crescimento.
This study aimed to evaluate the effects of using different mixtures of prebiotics (β-glucan, Frutolioligosaccharides - FOS, Galactoligosaccharides - GOS and Mannanoligosaccharides - MOS) in the diet of weanling pigs on performance, incidence of diarrhea, small intestine morphometry, microbiology and cecal concentration of short chain fatty acids (SCFA) in the proximal colon. Were used 120 (5.90kg ± 0.24kg - Exp. 1) and 40 weanling pigs (6.05 ± 0.21kg - Exp.2), both at 21 days of age (experimental period of 37 and 14 days respectively, for the experiments 1 and 2), distributed in a randomized block design with five treatments and 8 replicates with three animals (Exp. 1) and one animal (Exp. 2) per pen (experimental unit). The treatments in both experiments were: C = basal diet (BD) with addition of 40 ppm of colistin (colistin sulfate - 8%); MB = BD + MOS and β-glucan (2.0kg/t); GF91 = BD + MOS and β-glucan (1.0kg/t) + GOS and FOS (1.0kg/t) (GOS:FOS ratio 9:1); GF73 = BD + MOS and β-glucan (1.0kg/t) + GOS and FOS (1.0kg/t) (GOS:FOS ratio 7:3); GF55 = DB + MOS and β-glucan (1.0kg/t) + GOS e FOS (1,0kg/t) (GOS:FOS ratio 5:5). For performance, there was no difference between treatments from periods 0-16 and 0-29 days, however, in the period from 0-37 days, the animals fed control treatment (C) had better (P = 0.0598) feed conversion (CA) than animals fed GF55 treatment, not differing (P> 0.06) from the other treatments (MB, GF73 and GF91). Diarrhea incidence, intestinal morphology and short chain fatty acids concentration were not different (P>0.06) among the treatments. The animals fed GF91 treatment decreased (P = 0.0165) Escherichia coli content in cecal compared to animals fed MB treatment, not differing (P> 0.06) from the other treatments. The results suggest that these different combinations of prebiotics were effective in maintaining performance and intestinal health of piglets weaned, and may therefore an alternative to the replacement of antibiotics as growth promoters.
This study aimed to evaluate the effects of using different mixtures of prebiotics (β-glucan, Frutolioligosaccharides - FOS, Galactoligosaccharides - GOS and Mannanoligosaccharides - MOS) in the diet of weanling pigs on performance, incidence of diarrhea, small intestine morphometry, microbiology and cecal concentration of short chain fatty acids (SCFA) in the proximal colon. Were used 120 (5.90kg ± 0.24kg - Exp. 1) and 40 weanling pigs (6.05 ± 0.21kg - Exp.2), both at 21 days of age (experimental period of 37 and 14 days respectively, for the experiments 1 and 2), distributed in a randomized block design with five treatments and 8 replicates with three animals (Exp. 1) and one animal (Exp. 2) per pen (experimental unit). The treatments in both experiments were: C = basal diet (BD) with addition of 40 ppm of colistin (colistin sulfate - 8%); MB = BD + MOS and β-glucan (2.0kg/t); GF91 = BD + MOS and β-glucan (1.0kg/t) + GOS and FOS (1.0kg/t) (GOS:FOS ratio 9:1); GF73 = BD + MOS and β-glucan (1.0kg/t) + GOS and FOS (1.0kg/t) (GOS:FOS ratio 7:3); GF55 = DB + MOS and β-glucan (1.0kg/t) + GOS e FOS (1,0kg/t) (GOS:FOS ratio 5:5). For performance, there was no difference between treatments from periods 0-16 and 0-29 days, however, in the period from 0-37 days, the animals fed control treatment (C) had better (P = 0.0598) feed conversion (CA) than animals fed GF55 treatment, not differing (P> 0.06) from the other treatments (MB, GF73 and GF91). Diarrhea incidence, intestinal morphology and short chain fatty acids concentration were not different (P>0.06) among the treatments. The animals fed GF91 treatment decreased (P = 0.0165) Escherichia coli content in cecal compared to animals fed MB treatment, not differing (P> 0.06) from the other treatments. The results suggest that these different combinations of prebiotics were effective in maintaining performance and intestinal health of piglets weaned, and may therefore an alternative to the replacement of antibiotics as growth promoters.
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Aditivos, Suínos, Desempenho, Additives, Pigs, Performace