Effects of supplementation of lactic acid bacteria on growth performance, blood metabolites and fecal coliform and lactobacilli of young dairy calves

Bayatkouhsar, J.; Tahmasbi, Abdol Mansour; Naserian, Abbas Ali; Mokarram, Reza Rezaei; Valizadeh, Reza

doi:10.1016/j.anifeedsci.2013.04.015

Cited by 66 publications

(56 citation statements)

References 35 publications

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“…Numerous studies have reported beneficial effects of probiotics on the health status and performance of calves (Mudgal and Baghel 2010;Bayatkouhsar et al 2013;Qadis et al 2014;Soto et al 2014). Most of the experiments showed increased weight doi: 10.17221/8727-CJAS gain and improved feed conversion ratios, but few studies also monitored a long-term survival of the probiotics administered.…”

Section: Discussionmentioning

confidence: 99%

Persistence of bifidobacteria in the intestines of calves after administration in freeze-dried form or in fermented milk

Geigerová¹,

Vlková²,

Bunešová³

et al. 2016

CZECH J ANIM SCI

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ABSTRACT:In order to improve the gut microbiome of calves, probiotic bacteria can be fed as active livingcells (fermented milk), or as live but inactive (freeze-dried) cultures. Ten bifidobacterial strains with suitable probiotic properties (as determined in our previous study) were tested for survival during the freeze-drying process, and screened for their ability to ferment cow's milk. The viability of both freeze-dried and live-cell cultures during storage was also tested. All of the strains tested were able to ferment cow's milk, with average counts of 8.26 ± 0.62 log CFU/ml. Eight out of the ten strains were able to survive in milk for 2 months in counts higher than 10 6 CFU/ml. Bifidobacteria showed high viability following the freeze-drying process, with average numbers of 9.03 ± 0.22 log CFU/vial and did not decrease after 12 months of storage. The mixture of rifampicin-resistant variants of bifidobacteria (RRBs) was fed to 2-day-old dairy Charolais calves in the form of living-cells, or as freeze-dried bacteria. The control group was given no probiotics. Survival of the RRBs administered and the numbers of other bacterial groups in faecal samples was monitored by culturing. Bifidobacteria that were administered passed successfully through the upper parts of the gastrointestinal tract, and were found in numbers higher than 10 9 CFU/g for two weeks. RRBs colonized the intestines of calves for at least 63 days in both treatment groups. Significantly higher total counts of bifidobacteria were found in the treated groups, compared to the control group. Reduction in Escherichia coli and total coliforms numbers, and an increase in lactobacilli counts were observed in both experimental groups following the application of the probiotic mixtures. Our results show that both forms of administering probiotic bifidobacteria to calves are effective, but that the freeze-dried form is more suitable from a practical viewpoint.

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Section: Discussionmentioning

confidence: 99%

Persistence of bifidobacteria in the intestines of calves after administration in freeze-dried form or in fermented milk

Geigerová¹,

Vlková²,

Bunešová³

et al. 2016

CZECH J ANIM SCI

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“…Microrganismos probióticos são considerados adjuvantes para melhorar o estado de saúde de bezerros recém-nascido (Magalhães et al, 2008;Bayatkouhsar et al, 2013). Espécies probióticas podem melhorar a resposta imune intestinal, contribuindo com efeitos benéficos na microbiota autoctone intestinal (Luongo et al, 2013).…”

Section: Introductionunclassified

Lactic acid bacteria with probiotic potential from Nellore calves raised in semiarid

Malveira

Duarte

Veloso

et al. 2016

AVB

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RESUMO -A colibacilose é uma das principais doenças que acomete bezerros nas fases iniciais, provocando prejuízos à bovinocultura. Nesta pesquisa, caracterizou-se e selecionou-se cepas de bactérias láticas com potencial probiótico, provenientes de bezerros Nelore criados no norte de Minas Gerais. Foram coletadas amostras fecais de bezerros hígidos contemporâneos, com três dias de vida e novamente aos três meses de idade. Após isolamento, realizou-se a quantificação, caracterização morfológica e bioquímica com teste API 50 CH, resistência a pH ácido e a sais biliares e atividade antagonista in vitro para três cepas de Escherichia coli. Verificou-se população superior (p < 0,05) de bactérias láticas nas fezes dos bezerros na fase colostral. Quanto à resistência ao ácido clorídrico, 92,3% dos isolados de bezerros recém-nascidos resistiram ao pH 4,0, apresentando-se superior aos isolados de bezerros aos três meses de idade. No teste de antagonismo, os isolados, Be4 1m, Be1 2b e Be6 2a, identificados presuntivamente, como Lactobacillus salivarius, L. crispatus e L. pentosus, respectivamente, produziram média de halo de inibição superior a 10 mm de diâmetro e demonstraram resistência ao pH ácido e sais biliares, indicando potencial para serem utilizados como probióticos.Palavras-Chave: pecuária de corte; Lactobacillus spp.; diarreia neonatal; antagonismo microbiano.ABSTRACT -Colibacilosis is one of the major diseases of calves, causing huge losses. The aim in this study was to characterize and select lactic bacteria with probiotic potential from Nellore calves raised in northern Minas Gerais. Stool samples from six healthy calves were collected, with three days old and again at three months of age. After isolation, bacteria were enumerated and submitted to morphological and biochemical characterization with API 50 CH test, pH and acid resistance to bile salts and antagonist activity in vitro for three strains of Escherichia coli. The population of lactic acid bacteria was greater (p < 0.05) in feces of the calves at colostrum phase. For resistance to chloric acid, 92.3% of isolates from newborn calves resisted pH 4.0, presenting higher resistance than the isolates from calves at three months of age. In the antagonism test, the isolates Be4 1m, Be1 2b and Be6 2a were presumptively identified as Lactobacillus salivarius, L. crispatus and L. pentosus, respectively, and produced average inhibition zones greater than 10 mm of diameter and showed resistance acid pH and bile salts, indicating potential probiotics.

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“…The balance of the intestinal ecosystem can be altered in intensive farming systems due to separation from their mothers, feeding with milk replacers and the subsequent elimination of the benefits of cow's milk, inadequate colostrum intake, stressful situations, and use of antibiotics , Bayatkouhsar et al 2013. This imbalance leaves the animals in a state of increased susceptibility to infections.…”

Section: Introductionmentioning

confidence: 99%

Faecal culturable microbiota, growth and clinical parameters of calves supplemented with lactic acid bacteria and lactose prior and during experimental infection with Salmonella Dublin DSPV 595T

et al. 2015

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Effects of supplementation of lactic acid bacteria on growth performance, blood metabolites and fecal coliform and lactobacilli of young dairy calves

Cited by 66 publications

References 35 publications

Persistence of bifidobacteria in the intestines of calves after administration in freeze-dried form or in fermented milk

Persistence of bifidobacteria in the intestines of calves after administration in freeze-dried form or in fermented milk

Lactic acid bacteria with probiotic potential from Nellore calves raised in semiarid

Faecal culturable microbiota, growth and clinical parameters of calves supplemented with lactic acid bacteria and lactose prior and during experimental infection with Salmonella Dublin DSPV 595T

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