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Compound feed additive capable of reducing swine manure odor and application thereof

A compound additive and odor technology, applied in applications, animal feed, animal feed, etc., can solve problems such as high odor, excessive nitrate content in groundwater, and feces pollution, and achieve reduced elimination, improved digestion and absorption, and reduced The Effect of Fecal Odor Pollution Status

Inactive Publication Date: 2017-05-24
TIANJIN INST OF ANIMAL HUSBANDRY & VETERINARY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the problem of manure and water pollution has not been effectively resolved, most of the large-scale pig farms are surrounded by stinky odors, the nitrate content in groundwater is seriously exceeded, and infectious diseases and parasitic diseases are prevalent in a few areas, which seriously affects the sustainable development of the pig industry.

Method used

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  • Compound feed additive capable of reducing swine manure odor and application thereof
  • Compound feed additive capable of reducing swine manure odor and application thereof
  • Compound feed additive capable of reducing swine manure odor and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (1) Bacillus subtilis (strain preservation number CGMCC 1.504) was cultured in LB liquid medium for 18 h, and the colony density reached 1×10 11 CFU / mL, add appropriate amount of bran after drying and concentrating (the weight ratio of bacteria solution and bran is 1:100), the concentration of Bacillus subtilis in the final product is 1×10 12 CFU / g. The prepared Bacillus subtilis had the same physicochemical properties as described.

[0047] The LB liquid medium refers to weighing 10 g of tryptone, 5 g of yeast extract, and 5 g of sodium chloride, adding about 800 mL of deionized water, and stirring well. Adjust the pH value to 7.0 with sodium hydroxide, add deionized water to make up to 1 L, and sterilize at 121°C for 20 minutes.

[0048] (2) The preparation method of Yucca plant extract:

[0049] Yucca plants refer to Yucca schidigera (Yucca schidigera) harvested, cut into small pieces and then mechanically crushed into fibers, soaked in clean water, the ratio of...

Embodiment 2

[0052] 20 growing pigs weighing 40 kg were selected and divided into two treatments, each with 10 pigs. The pigs in the control group were fed with the basic diet, and the pigs in the experimental group were fed with 5×10 5 CFU / g Bacillus subtilis, 80 g / ton Yucca plant extract. The test period was 20 days, and feces were collected once every 10 days, and the content of 3-methylindole was measured therein. The results of the measurement are shown in Table 4. Wherein the weight and number ratio of Bacillus subtilis and Yucca genus extract is 1:7;

[0053] Table 4 Effects of different dietary treatments on the content of 3-methylindole in pig manure, ng / g

[0054]

Embodiment 3

[0056] 20 fattening pigs weighing 60 kg were selected and divided into two treatments, each with 10 pigs. The pigs in the control group were fed with the basic diet, and the pigs in the experimental group were fed with 5×10 8 CFU / g Bacillus subtilis, 60 g / ton Yucca plant extract. The test period was 20 days, and feces were collected once every 10 days, and the content of 3-methylindole was measured therein. The results of the measurement are shown in Table 5. Wherein the weight and number ratio of Bacillus subtilis and Yucca genus extract is 1:7;

[0057] Table 5 Effects of different dietary treatments on the content of 3-methylindole in pig manure, ng / g

[0058]

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Abstract

The invention discloses a compound feed additive capable of reducing swine manure odor. The compound feed additive capable of reducing swine manure odor is prepared by adding bacillus subtilis and a yucca schidigera extract into feeds, wherein the weight ratio of the bacillus subtilis to the yucca schidigera extract is 1: 7; the viable count of the bacillus subtilis is 5 multiples 10<6>CFU / g; and the yucca schidigera extract is extracted from yucca plants. The main active ingredients of the compound feed additive are steroid saponins and glycosides; and the compound feed additive is particulate. The compound feed additive is a natural, safe, environmentally-friendly and green feed additive for the livestock and poultry; moreover, the compound feed additive will not be absorbed by the stomaches and the intestines of the livestock and poultry, no residues are left in the muscle and the tissues, and no withdrawal period is required. By adding the bioactive feed additives into the feeds, the compound feed additive is capable of improving digestion and absorption of the pigs to the nutrients in the feeds, deceasing elimination of various kinds of odor substances, and reducing the current status of fecal odor pollution.

Description

technical field [0001] The invention belongs to the field of animal nutrition technology research in animal husbandry, and relates to a feed compound additive for reducing pig manure odor and its application. Background technique [0002] Under normal production conditions, from birth to slaughter of a fattening pig, the excrement volume is 850-1050 kg, and the urine output is 1200-1300 kg. The intensively produced flushing water can discharge 60,000 to 70,000 tons of excrement and sewage every year. At present, there are more than 1,500 pig farms with more than 5,000 heads in the country. According to the annual slaughter volume of these large-scale pig farms, the total amount of excrement and sewage in the whole year exceeds 100 million tons. Since the problem of manure and water pollution has not been effectively resolved, most of the large-scale pig farms are surrounded by stinky odors, the nitrate content in groundwater is seriously exceeded, and infectious diseases an...

Claims

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Application Information

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IPC IPC(8): A23K50/30A23K10/18A23K10/30
Inventor 乔家运支苏丽杨艳玲赵敬真
Owner TIANJIN INST OF ANIMAL HUSBANDRY & VETERINARY
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