Effect of Clostridium butyricum on the performance of broilers

Key words: Clostridium butyricum; production performance; broiler

Clostridium butyricum can produce butyric acid, lactic acid, etc., promote the proliferation of beneficial intestinal flora such as bifidobacteria and lactic acid bacteria, and inhibit the growth of pathogenic bacteria and spoilage bacteria such as staphylococcus, Escherichia coli, Salmonella typhi, Clostridium perfringens, etc. It can promote the balance of intestinal microbes and reduce the production of harmful substances such as amines, hydrazine and hydrogen sulfide. Clostridium butyricum and its metabolites can improve feed utilization and improve meat quality of livestock and poultry, and enhance immunity and disease resistance of livestock and poultry. In addition, Clostridium butyricum can treat intestinal diseases such as diarrhea in livestock and poultry, and can be used as a veterinary drug. Because Clostridium butyricum is resistant to various antibiotics such as streptomycin, its biological effects are not affected when used in combination with these antibiotics. It can also enhance the treatment effect. The resistance of Clostridium butyricum to various antibiotics is particularly important for the growth and colonization of strains when antibiotics are commonly added to feeds. Clostridium butyricum can also be used in combination with probiotics such as lactic acid bacteria, spores, and bifidobacteria to enhance the efficacy of the product. Clostridium butyricum is Clostridium, an endogenous spore, which has strong resistance to the external environment. Clostridium butyricum can resist high temperature and high heat during feed granulation, and can survive in gastric acid and bile. It is resistant to some antibiotics and is an ideal strain for probiotics for feeding. It is compatible with the currently widely used non-spore live bacterial preparations. More than a broader market prospect.

1 Materials and methods

1.1 Test location and time

2009.7.29-2009.10.6, carried out in the farmer's chicken farm in the eastern town of Xinxing County, the test period is about 68d.

1.2 Production of strains and preparations

The Clostridium butyricum strain is supplied by the Guangdong Wenshi Food Group Co., Ltd. The number of bacteria in the fermentation stock is about 15×10

8 cfu/mL.

Add Clostridium butyricum to the drinking water of the fast chicken according to the mass ratio of Clostridium butyricum and water at a ratio of 6:1 000, and mix it evenly before use. Drink water for a limited time every day, 4 hours after drinking.

1.3 Test design

The 1 day old Wenshi Xinhuang Yellow Chicken No. 5 was used, with a total of about 14,000 pigeons. They were randomly divided into two groups according to gender and health status, which were control group and experimental group, each group had about 7,000 pigeons, each with 3 replicates. . There was no significant difference between the two groups of Wen's fast chickens.

1.4 Test diet

The test feed was prepared according to the conventional feed of Wen's fast chicken. There were no differences in the other dietary components of the experimental and control groups.

1.5 Feeding management

The test fast chickens are located in the same chicken farm, fed by the same breeder, and each replicate is housed in one house and fed to the corresponding drinking water. Feed twice a day, the amount of addition is based on no waste and free to drink. The feeding management, immunization procedures, and drug administration procedures of the test group and the control group were carried out according to the conventional broiler feeding method and immunization program of Wen's.

1.6 Determination of weight gain and feed utilization

The daily consumption of the diet was calculated by daily measurement, and the average daily gain, consumption and feed-to-meat ratio were calculated.

2 Results and analysis

2.1 Impact on broiler performance

The feeding effect of Clostridium butyricum on broilers in the diet is shown in Table 1. The daily weight gain of the experimental group was 2.3g/d·3, which was 4.61% higher than that of the control group, but the difference was not significant. The meat ratio of the test group was reduced by 0.20, which was 8.47% lower than that of the control group. The amount of feed was reduced by 0.44 kg/only, which was a decrease of 5.5%. Moreover, the test group was released 1 year earlier than the control group. Tests have shown that the addition of Clostridium butyricum to broiler diets has the effect of increasing daily weight gain and improving feed utilization, and the production performance has been greatly improved.

Table 1 Effect of Clostridium butyricum on performance of broilers

However, we also analyzed the market status of the two groups of broilers and found that the test group was slightly better than the control group, but there was no significant difference between the two groups (Table 2). The reason is probably because the test base of broilers is large, and there is no significant change in the number of deaths relative to the base.

Table 2 Effect of Clostridium butyricum on broiler market

2.2 Effects on broiler enteritis

In the experiment, we found that Clostridium butyricum can prevent intestinal inflammation in chickens. In the test group, Clostridium butyricum was fed from the age of 1 day, and no enteritis occurred until 30 days of age, and no enteritis drug was used. At the same time, we also carried out some tests to prevent and cure enteritis. It was found that Clostridium butyricum had an ideal effect on the prevention and treatment of broiler enteritis, and the fecal condition changed significantly.

2.3 Analysis of economic benefits

The economic benefits of feeding of each group of chickens were measured and summarized. The results are shown in Table 3. The seedling cost of the two groups of broilers was basically the same, but the consumption and average profit of the experimental group were significantly better than the control group. Among them, the average consumption is reduced by 340g / only, and the cost of medication is reduced by 0.23 yuan / only. As can be seen from Table 3, the average profit of the test group fed with Clostridium butyricum was 0.97 yuan/only. If the gross profit of the control group is assumed to be 100%, then the gross profit of the experimental group will increase by 88.2%. On the other hand, if the broiler grows fast, the slaughter time decreases, and the cost of the house and labor costs are reduced, the total benefit will be more substantial.

Table 3 Economic Benefit Analysis

3 Discussion

Clostridium butyricum is an ideal probiotic found in recent years. Through experiments, it can be seen that the addition of Clostridium butyricum to the diet can not only effectively increase the daily weight gain of broilers, increase the feed conversion rate, but also effectively prevent the occurrence of enteritis and improve the disease resistance and immunity of broilers. Among them, the effect of increasing the weight gain rate, the feed conversion ratio and the reduction of the material-to-weight ratio is obvious, and the production performance of the broiler is greatly improved. It is necessary to conduct more in-depth research and trial use for large-scale and large-scale promotion.

As a new type of microecological preparation, the research on the mechanism of action of Clostridium butyricum is still not thorough enough. There is no standardized process flow, product standard, and typical feed formulation. The application is still in the primary stage, and further need to be applied to the microbial agent. More detailed research on the manufacturing process and stability, safety and functional characteristics.

(Reference)

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