Uso de antibiótico, de probiótico e de homeopatia em frangos de corte criados em ambiente de conforto, inoculados ou não com Escherichia coli

Boratto, Adriano José; Lopes, Darci Clementino; Oliveira, Rita Flávia Miranda de; Albino, Luiz Fernando Teixeira; Sá, Luciano Moraes; Oliveira, Gisele Andrade de

doi:10.1590/s1516-35982004000600014

Cited by 20 publications

(10 citation statements)

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“…Therefore, according to Costa et al (2007), reduced production of volatile fatty acids may result in lower cell replication in the intestinal epithelium of broiler chickens fed antimicrobials, with consequent reduction in relative intestinal weight. Different results were described by Boratto et al (2004), who did not find any influence of probiotics, homeopathic products, or antibiotics on total intestinal relative weight of 42-d-old broiler chickens infected or not with Escherichia coli.…”

Section: Resultsmentioning

confidence: 65%

Intestinal integrity and performance of broiler chickens fed a probiotic, a prebiotic, or an organic acid

Fernandes

Martins

Mendes

et al. 2014

Rev. Bras. Cienc. Avic.

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KeywordsScanning electron microscopy, morphometrics, intestinal mucosa, intestinal wall.Submitted: May/2013 Approved: February/2014 ABStRACt This study aimed at evaluating the intestinal integrity, using light and scanning electron microscopy (SEM), and the performance of broiler chickens fed additives alternative to antimicrobials. A total of 1080 male chicks were distributed according to a completely randomized experimental design, with six treatments with six replicates of 30 birds each. The following treatments were evaluated: basal diet (control), basal diet supplemented with an antimicrobial, basal diet supplemented with a probiotic, basal diet supplemented with a prebiotic, basal diet with a symbiotic, and basal diet supplemented with organic acids. Weight gain, feed intake, feed conversion ratio and livability were recorded when broiler chickens were 10, 21, 35, and 42 days old. On day 42, 72 birds were individually weighed and sacrificed. In order to evaluate the morphometrics of the different intestinal wall layers, segments of the small intestine and the cecum were collected from two birds per replicate, and intestinal integrity (SEM) was evaluated in the same segments of two birds per treatment. During the starter period (1-21 days old), birds fed the alternative additives presented similar weight gain as those fed the antimicrobial product, but were not different from control birds. Feed conversion ratio of birds fed alternative additives was better than that of the control birds from one to 10 days of age, but not during the remaining rearing period, and was similar to the birds receiving the antimicrobial. The morphometric parameters of the different intestinal wall layers was not influenced by the treatments. During the total rearing period, the evaluated alternative additives did not improve intestinal integrity or broiler performance.

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Section: Resultsmentioning

confidence: 65%

Intestinal integrity and performance of broiler chickens fed a probiotic, a prebiotic, or an organic acid

Fernandes

Martins

Mendes

et al. 2014

Rev. Bras. Cienc. Avic.

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“…Likewise, Pelicano et al (2004) observed no significant differences in weight gain, feed intake and feed conversion of broilers fed diets with different probiotics in the period of 1-45 days of age. Different antibiotics and probiotics did not affect the performance variables of the broilers aged from 1 to 42 days studied by Faria et al (2009) and Boratto et al (2004).…”

Section: Resultsmentioning

confidence: 71%

“…Boratto et al (2004), evaluating the use of antibiotics, probiotics and homeopathy in the diet, found higher weight gain for broilers treated with antibiotics and probiotics during 1-21 days of age.…”

Section: Resultsmentioning

confidence: 99%

“…In a study evaluating the use of antibiotics, probiotics and homeopathy in broiler chickens raised in a clean environment, inoculated or not with Escherichia coli, Boratto et al (2004) found increased liver size of poultry reared in environment inoculated with bacteria, which may be related to the neutralization of toxic substances produced from the metabolic activity of intestinal bacteria, which requires a constant energy expenditure made by the liver for detoxification inducing the hypertrophy of hepatocytes. Silva et al (2011), Faria et al (2009 and Lorençon et al (2007), evaluating the use of different growth promoters for broilers, observed no effect on any variable of carcass yield, or in the percentage of abdominal fat at 42 days of CV -coefficient of variation; ns -not significant.…”

Section: Resultsmentioning

confidence: 99%

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Use of probiotics to replace antibiotics for broilers

et al. 2012

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-This study was carried out to evaluate the effect of supplementation of probiotics (Lactobacillus acidophilus, Enterococcus faecium and Bifidubacterium bifidum) and antibiotics (flavomicina and staquinol) on diets for broilers from 1 to 42 days of age, reared in clean (new litter) and challenged (reused litter) environments. A total of 768 one-day-old male broilers of the Cobb 500 strain were distributed in a completely randomized design in a 2 × 4 factorial arrangement (2 litter types × 4 diets), totaling eight treatments with eight replications and 16 poultry per experimental unit. The results of performance and carcass characteristics were submitted to analysis of variance using the Studen Newman Keuls test at 0.05 probability. In the period of 1-21 days of age, the supplementation with probiotics for poultry raised in the new litter reduced feed intake, whereas in those raised in reused litter, the diet free of growth promoter showed a lower consumption. Poultry from 1 to 42 days raised in new litter had lower feed intake when supplemented with probiotics. Other results of performance and carcass yield were not affected. For the poultry raised in reused litter, the use of probiotics resulted in lower thigh yield and higher liver yield. The use of different growth promoters in feed for broilers does not influence the performance of poultry raised in new or reused litter. The use of probiotic promotes lower feed intake without compromising the performance, regardless of the type of litter used, demonstrating the feasibility of using this product as substitute for antibiotics.

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“…A comparação de resultados de estudos científicos conduzidos com aditivos deve ser sempre relativizada, uma vez que em cada experimento são utilizados determinados tipos de promotores de crescimento, com diferentes dosagens e formas de administração e em condições experimentais distintas (Boratto et al, 2004).…”

Section: Resultsunclassified

Efeito de promotores de crescimento alternativos no desempenho e no custo de produção de frangos de corte

Medeiros¹,

Padilha²,

Padilha³

et al. 2011

Biotemas

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ResumoCom o objetivo de avaliar o desempenho e o custo de produção de frangos de corte, foram testados probióticos e prebióticos como promotores de crescimento alternativos aos antimicrobianos (colistina/ avilamicina), na ração de 6.450 pintos de corte, machos, da linhagem Cobb, criados de 1 a 42 dias de idade, distribuídos em um delineamento inteiramente casualisado, formado por oito tratamentos de rações experimentais, com 13 -17 repetições de 50 aves cada por tratamento. Os probióticos foram o Bacillus subtilis em diferentes concentrações e/ou recomendação de uso, uma mistura de Saccharomyces cerevisiae mais Aspergillus oryzae ou um prebiótico composto de mananoligossacarídeos (MOS) adicionados em uma ração inicial e outra de crescimento comum a todos os tratamentos. Não se verificou diferenças significativas na conversão alimentar entre tratamentos. Entretanto, o peso médio dos animais que receberam Bacillus subtilis (1,6 x 10 9 CFU/g) ou uma mistura de probióticos foi maior ou semelhante ao peso das aves alimentadas com os antimicrobianos. Conclui-se que é possível substituir os antimicrobianos utilizados, pelos probióticos avaliados como promotores de crescimento sem prejuízos no desempenho e no custo de produção de frangos de corte. Unitermos: frangos de corte, antimicrobianos, probióticos, prebióticos, desempenho AbstractEffects of alternative promoters of growth on the performance and cost of production of broilers. Probiotics and prebiotics were compared to antimicrobials as alternative growth promoters in male broilers grown from 1 to 42 days of age. Eight treatments were evaluated: a control feed without antimicrobials or alternative growth promoters, a control feed with antimicrobials, a control feed with the antimicrobials colistine and avilamicine, three rations with probiotic Bacillus subtilis in different concentrations and/or under recommended usage, one ration with probiotic Saccharomyces cerevisiae in addition to a mixture of probiotic Biotemas, 22 (3): 157-163, setembro de 2009

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Uso de antibiótico, de probiótico e de homeopatia em frangos de corte criados em ambiente de conforto, inoculados ou não com Escherichia coli

Cited by 20 publications

References 1 publication

Intestinal integrity and performance of broiler chickens fed a probiotic, a prebiotic, or an organic acid

Intestinal integrity and performance of broiler chickens fed a probiotic, a prebiotic, or an organic acid

Use of probiotics to replace antibiotics for broilers

Efeito de promotores de crescimento alternativos no desempenho e no custo de produção de frangos de corte

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