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Feed additive for reducing discharge of stink compound in pig excrement

A feed additive and quality technology, applied in the field of feed additives to reduce the emission of odorous compounds in pig manure, can solve the problems of uncontrollable odorous substances, improve the ratio of feed to weight, increase digestibility, and improve daily growth heavy effect

Inactive Publication Date: 2019-01-18
CHONGQING ACAD OF ANIMAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the existing source control technology deodorization mainly focuses on the digestion and absorption of nutrients and the discharge of nutrients, and cannot control the production of odorous substances in the later stage of discharged feces

Method used

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  • Feed additive for reducing discharge of stink compound in pig excrement
  • Feed additive for reducing discharge of stink compound in pig excrement
  • Feed additive for reducing discharge of stink compound in pig excrement

Examples

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Embodiment 1

[0033] Feed additives, the specific implementation is as follows:

[0034] Select 84 healthy DLY pigs (i.e. lean pigs) with a body weight of 30-35kg, including 42 boars and 42 sows. Feed additives (respectively experimental group 1, experimental group 2, experimental group 3, experimental group 4, experimental group 5 and blank control group, the basic diet composition and nutritional components are shown in Table 1) were added to the grain, and mixed evenly , The automatic feeding system is adopted to allow the pigs to eat freely, and the duckbill drinker can drink freely. Every day at 7:00, 13:00, and 17:00, the automatic feeder is manually fed to ensure that the trough has material at any time.

[0035] Table 1 Basic diet formula and nutritional components (%)

[0036]

[0037]

[0038] Remarks: The ratio relationship of trace element premix (content / kg diet) is: CuSO 4 ·5H 2 O 40mg, FeSO 4 ·7H 2 O 50mg, MnSO 4 ·H 2 O 20mg, ZnSO 4 ·7H 2 O 20mg, KI 0.3mg, NaSe...

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Abstract

The invention belongs to the technical field of animal feeds specially applied to specific animals, and particularly relates to a feed additive for reducing the discharge of stink compound in pig excrement. Two of earthworms, yucca schidigera extract and bacillus subtilis are combined to form the feed additive. The feed additive can remarkably improve the feed to gain ratio and daily weight gain of pigs and increase reproductive capacity; the digestibility of nutrient substances for growing pigs can be increased, and the content of nitrogen and phosphorus in fecal and urine can be reduced; thecontent of undigested nutrients in excrement is reduced, and the content of stink substances (such as p-cresol, indole, n-propionic acid, n-butyric acid and n-pentanoic acid) in fecal and urine mixture is reduced; the discharge of stink substances (such as p-cresol, indole, n-propionic acid, n-butyric acid and n-pentanoic acid) produced after pig fecal and urine fermentation can be remarkably reduced, and environmental pollution caused by breeding waste gas is reduced; and the materials have a synergistic effect.

Description

technical field [0001] The invention belongs to the technical field of animal feed specially suitable for specific animals, and in particular relates to a feed additive for reducing the emission of odorous compounds in pig manure. Background technique [0002] With the continuous improvement of people's living standards, people's demand for meat, eggs, and milk continues to increase. The proportion of animal husbandry in the agricultural economy is increasing. The degree of modernization and intensification is getting higher and higher. The resulting large amount of waste seriously threatens the living environment of human beings, and animal husbandry has become a pollution source that cannot be ignored. Research shows that in a layer farm with 200,000 chickens, only adult chickens will produce nearly 20 tons of chicken manure every day. If the corresponding reserve chickens are added, the daily output of chicken manure can reach nearly 35 tons; Pig farms produce 73 tons of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/30A23K10/20A23K10/18A23K20/10
CPCA23K10/18A23K10/20A23K20/10A23K50/30
Inventor 蒲施桦龙定彪王浩曾雅琼简悦
Owner CHONGQING ACAD OF ANIMAL SCI
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