Degradation of deoxynivalenol by Bacillus subtilis ZZ and Bacillus licheniformis DY

2008 ◽  
Vol 136 ◽  
pp. S651
Author(s):  
Bocai Cheng ◽  
Cuixiang Wan ◽  
Hengyi Xu ◽  
Jianshe Liu ◽  
Hua Wei ◽  
...  
Author(s):  
O. Merzlyakova ◽  
V. Rogachyev ◽  
V. Chegodaev

The efficiency of introducing probiotics based on strains of Bacillus subtilis, Bacillus licheniformis and their consortium in the amount of 150 g/t of feed into the diets of laying quails has been studied. The experiment lasting 182 days has been carried out on four groups of quails with 30 heads in each. The quails have been housed in the broiler battery in compliance with the required microclimate conditions. Quails of all groups have been received the main diet (compound feed) developed taking into account their age and physiological characteristics. The quails of the 1st, 2nd and 3rd experimental groups in addition to the main diet received probiotics (150 g/t compound feed) based on strains Bacillus subtilis, Bacillus licheniformis and their consortium, respectively. It has been found that feeding the laying quails of the consortium of strains Bacillus subtilis and Bacillus licheniformis had the most significant positive impact on their productive performance, it allowed to increase egg production by 7,81 %, egg laying intensity by 5,0 %, egg mass yield by 9,77 %, while reducing feed expenditures for 10 eggs by 13,35 %. The yield of hatching eggs has been increased by 7,03 %, hatchability of chickens from laid and fertilized eggs by 8,33 and 8,35 %, brooding waste decreased by 21,74 %. Hematological parameters of quails during the whole experiment were within the physiological norm. The economic effect calculated on the basis of data on the cost of compound feed, probiotics and the cost of sold eggs of quail laying was 14,56 % in the 3rd experimental group (in relation to the control group).


Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1581
Author(s):  
Artur Rybarczyk ◽  
Elżbieta Bogusławska-Wąs ◽  
Alicja Dłubała

The objective of the study was to determine the effects of probiotic bacteria Bacillus licheniformis and Bacillus subtilis on microbiological properties of feed mixtures and on the digestive tract content as applicable to production traits and carcass characteristics of fatteners. The experiment was performed on 83,838 fatteners from four successive (insertions) productions in two groups. From the seventy eighth day of age till marketing to the slaughter plant, the pigs were supplied with BioPlus YC probiotic (Chr. Hansen) in the amount of 400 g/t. The preparation contained a complex of probiotic bacteria Bacillus licheniformis DSM 5749, and Bacillus subtilis DSM 5750 spores in a 1:1 ratio. From the fourth insertion, after reaching a body weight of approximately 112 kg, 60 fatteners were selected from each group to measure carcass quality and half of them for meat quality evaluation. Moreover, microbiological analyses in feed and colon were performed. The study showed that BioPlus YC probiotics supplementation resulted in a significantly higher count of B. subtilis and B. licheniformis in the feed, a higher count of B. subtilis, B. licheniformis and LAB, as well as a lower count of Enterobacteriaceae, Enterococcus, Clostridium and Bacillus sp. in the mucosa and in the colorectal content of the test pigs. Our work has shown that supplementation with the BioPlus YC probiotic had a positive effect on the production traits of pigs mainly by reducing mortality (2.83%, p = 0.010), lowering feed conversion ratio—FCR (2.59 kg/kg, p = 0.013), better average daily gain—ADG (0.95 kg/day, p = 0.002) and shorter fattening period (77.25 days, p = 0.019) when compared to the control group (4.19%; 2.79 kg/kg; 0.89 kg/day; 92.8 days, respectively). The addition of the specific Bacillus bacteria did not influence carcass and meat characteristics of the test fatteners.


2013 ◽  
Vol 35 (1) ◽  
pp. 23-31 ◽  
Author(s):  
Cassiano Forner ◽  
Wagner Bettiol ◽  
Lenice Magali do Nascimento ◽  
Daniel Terao

O mercado consumidor está exigindo alimentos sem a presença de resíduos de agrotóxicos. Assim, o trabalho teve como objetivo avaliar o controle do bolor verde, em laranjas-Pera, com agentes de biocontrole (Bacillus subtilis e Bacillus licheniformis, Bacillus subtilis (QST 713)), associados ou não ao tratamento térmico. Para tanto, os frutos foram adquiridos em "packinghouse" antes do processamento, sendo lavados e desinfestados com hipoclorito de sódio. Os frutos submetidos a esses tratamentos foram armazenados, por 11 a 28 dias, em temperatura de 10 ºC e UR 90%±5 ou por oito dias a 20 ºC e UR 90%±5. De modo geral, o tratamento térmico reduziu a severidade da doença determinada pela área abaixo da curva do progresso da doença nos frutos e a incidência natural de doenças em pós-colheita de laranja-Pera. Por outro lado, os agentes de biocontrole não controlaram a doença, mostrando que os organismos testados não apresentaram atividade curativa contra o bolor verde.


2019 ◽  
Author(s):  
Tais Bastos ◽  
Daniele Cristina de Lima ◽  
Camilla Mariane Menezes Souza ◽  
Alex Maiorka ◽  
Simone Gisele de Oliveira ◽  
...  

Abstract Background: Direct-fed microbials (DFM), as Bacillus subtilis and Bacillus licheniformis, may improve gut functionality of the host by favoring non-pathogenic bacteria and reducing the formation of putrefactive compounds. The aim of this study was to assess the nutrients digestibility, faecal characteristics and products of intestinal fermentation in dogs fed diets with Bacillus subtilis and Bacillus licheniformis. Sixteen adult beagle dogs randomly distributed were used. Every eight dogs were fed with the control diet or the diet to which 62.5 g DFM (B. subtilis and B. licheniformis)/ton were added. Diets were provided during a twenty days adaptation period, followed by five days of total faecal collection. Nutrients digestibility and metabolizable energy of the diets, and faecal characteristics and products of dogs’ intestinal fermentation were assessed. Results: There were no differences in nutrients digestibility (P >0.05). The DFM supplementation, however, improved the faecal score and resulted in less fetid faeces (P <0.001). The DFM inclusion reduced (P <0.05) the biogenic amines concentration: putrescine, spermidine and cadaverine, and the concentration of phenols and quinoline. Conclusions: The use of B. subtillis and B. licheniformis as DFM reduce the concentration of nitrogen fermentation products in the faeces and faecal odor, but the digestibility of nutrients is not altered in dogs.


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