LU501320B1

LU501320B1 - Premixed feed for improving odor of pig feces and application thereof

Info

Publication number: LU501320B1
Application number: LU501320A
Authority: LU
Inventors: Jiayou Yan
Original assignee: Sichuan Animal Science Acad
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-08-09

Abstract

The present application relates to the field of animal nutrition and feed science, in particular to a premixed feed for improving the odor of pig feces and application thereof. The application of the premixed feed in the present application can significantly reduce the odor intensity of pig feces, significantly reduce the irritation intensity of pig feces, significantly improve the odor quality of pig feces, and significantly reduce the concentration of ammonia and hydrogen sulfide in pig feces.

Description

BL-5412 LU501320

DESCRIPTION PREMIXED FEED FOR IMPROVING ODOR OF PIG FECES AND

APPLICATION THEREOF Technical Field The present application relates to the field of animal nutrition and feed science, in particular to a premixed feed for improving the odor of pig feces and application thereof. Background Art China is the world's largest pig breeding country, and also the world's largest pork consumption country. Pig breeding is the gilded signboard of China's modern animal husbandry, which plays an important role in national economic development, agricultural and rural construction, rural revitalization and social stability. In recent years, with the increase of people's demand for pork, the scale of pig industry continues to expand, but at the same time, the odor of pig feces produced by pig farms has brought serious negative effects on human health and environmental safety. The harm of the odor of pig feces to human body is mainly reflected as headache, drowsiness, eye, nose and throat diseases, etc. The odor of pig feces is due to different kinds and quantities of microbial fermentation in animal intestines and the peculiar odor of feces produced thereby. Substances causing the peculiar odor of pig feces mainly include ammonia, hydrogen sulfide, volatile fatty acids, indole, methylindole, phenol, ethanol, carbon monoxide, etc. At present, non-nutritive additives such as plant extracts and microecological agents are mainly added to pig diets to reduce the concentration of ammonia and hydrogen sulfide in pig houses and improve the air quality of pig farms. However, these methods not only increase the cost of breeding, but also the actual effect is not ideal.

BL-5412 During the 13th Five-Year Plan, General Secretary Xi Jinping put forward the concept 507920 of "green" development, and pointed out that adjusting the structure of animal husbandry, reducing pollution of aquaculture, and developing green animal husbandry are the requirements of the development of the times.

In April 2019, in his speech at the opening ceremony of Beijing World Horticultural Exposition, the General Secretary further stressed that we should pursue green development and prosperity, green water and green mountains are golden mountains and silver mountains, and improving the ecological environment is developing productivity.

Therefore, in China's unprecedented attention to environmental protection today, the research and application of new, green, environment-friendly premixed feeds to reduce the odor harm of pig feces and improve the quality of the breeding environment, will have important practical significance to ensuring the healthy and sustainable development of the pig industry.

Summary In view of this, the present application provides a premixed feed for improving the odor of pig feces and application thereof.

The application of the premixed feed in the present application can significantly reduce the odor intensity of pig feces, significantly reduce the irritation intensity of pig feces, significantly improve the odor quality of pig feces, and significantly reduce the concentration of ammonia and hydrogen sulfide in pig feces.

In order to realize the purpose of the present application, the present application provides the following technical solution: The present application provides a premixed feed for improving the odor of pig feces, which includes the following components in parts by weight: copper citrate 2.9-5.8 parts zinc lactate 37.21-46.51 parts benzoic acid 400.4 parts silicon dioxide 547.29-559.49 parts

BL-5412 a . . a . LU501320 In some specific implementation solutions of the present application, the premixed feed includes the following components in parts by weight: copper citrate 4.35 parts zinc lactate 41.86 parts benzoic acid 400.4 parts silicon dioxide 553.39 parts or copper citrate 2.9 parts zinc lactate 46.51 parts benzoic acid 400.4 parts silicon dioxide 550.19 parts or copper citrate 5.8 parts zinc lactate 37.21 parts benzoic acid 400.4 parts silicon dioxide 556.59 parts or copper citrate 2.9 parts zinc lactate 37.21 parts benzoic acid 400.4 parts silicon dioxide 559.49 parts or copper citrate 5.8 parts zinc lactate 46.51 parts benzoic acid 400.4 parts silicon dioxide 547.29 parts

BL-5412 a . . a LU501320 In some specific implementation solutions of the present application, the content of copper in copper citrate is more than or equal to 34.5%, and the content of copper citrate is more than or equal to 98.0%. In some specific implementation solutions of the present application, the content of zinc in zinc lactate is more than or equal to 21.5%, and the content of zinc lactate is more than or equal to 98.0%. Based on the research, the present application further provides application of the premixed feed to improvement of the odor of pig feces.

The present application further provides a method for using the premixed feed for improving the odor of pig feces, in which 5kg of the premixed feed are added to each ton of formulated piglet feed.

The present application further provides a feed, which includes the premixed feed and acceptable raw materials and/or auxiliary materials in feeds.

In some specific implementation solutions of the present application, the mass percent content of the premixed feed in the feed is 0.5%. In some specific implementation solutions of the present application, Skg of the premixed feed are added to each ton of the feed.

In addition, the present application further provides application of the feed to improvement of the odor of pig feces.

The present application provides a premixed feed for improving the odor of pig feces and application thereof.

Description of the Embodiments

BL-5412 The present application discloses a premixed feed for improving the odor of pig feces 507920 and application thereof.

Those skilled in the art can learn from the content of the text to appropriately improve the process parameters.

In particular, it should be noted that all similar replacements and modifications will be obvious to those skilled in the art, and they are considered to be included in the present application.

The method and application of the present application have been described through exemplary embodiments, and it is obvious that the relevant personnel can realize and apply the technology of the present application by modifying or appropriately changing and combining the method and application described herein without departing from the content, spirit and scope of the present application.

The present application provides the following technical solution: A premixed feed for improving the odor of pig feces includes the following components in parts by weight: 2.9-5.8 parts of copper citrate, 37.21-46.51 parts of zinc lactate, 400.4 parts of benzoic acid, and 547.29-559.49 parts of silicon dioxide.

In the present application, an improved premixed feed for improving the odor of pig feces preferably includes the following components in parts by weight: 5.8 parts of copper citrate, 46.51 parts of zinc lactate, 400.4 parts of benzoic acid, and 547.29 parts of silicon dioxide.

In the present application, an improved premixed feed for improving the odor of pig feces preferably includes the following components in parts by weight: 4.35 parts of copper citrate, 41.86 parts of zinc lactate, 400.4 parts of benzoic acid, and 553.39 parts of silicon dioxide.

In the present application, an improved premixed feed for improving the odor of pig feces preferably includes the following components in parts by weight: 2.9 parts of copper citrate, 46.51 parts of zinc lactate, 400.4 parts of benzoic acid, and 550.19 parts of silicon dioxide.

In the present application, an improved premixed feed for improving the odor of pig feces preferably includes the following components in parts by weight: 5.8 parts of

BL-5412 copper citrate, 37.21 parts of zinc lactate, 400.4 parts of benzoic acid, and 556.59 507920 parts of silicon dioxide.

In the present application, an improved premixed feed for improving the odor of pig feces preferably includes the following components in parts by weight: 2.9 parts of copper citrate, 37.21 parts of zinc lactate, 400.4 parts of benzoic acid, and 559.49 parts of silicon dioxide.

Raw materials required for preparing the premixed feed in the present application may be purchased from the market.

Copper citrate is produced by the reaction of citric acid and inorganic copper.

The content of copper in copper citrate is more than or equal to 34.5%, and the content of copper citrate is more than or equal to 98.0%. Copper citrate has the features of stable chemical structure and high biological potency, and can inhibit the growth and reproduction of Escherichia coli in animal intestines.

Zinc lactate is produced by the reaction of lactic acid and zinc oxide.

The content of zinc in zinc lactate is more than or equal to 21.5%, and the content of zinc lactate is more than or equal to 98.0%. Zinc lactate has the features of good processing performance and high absorption and utilization rate, and can promote the growth and reproduction of Lactobacillus in animal intestines.

Benzoic acid is the simplest aromatic acid formed by directly connecting carboxyl groups with benzene ring carbon atoms.

Benzoic acid has weak acidity and broad-spectrum antibacterial effect, and can maintain the balance of microorganisms in animal intestines.

The present application provides a method for using the premixed feed for improving the odor of pig feces, in which Skg of the premixed feed are added to each ton of formulated piglet feed.

The beneficial effects of the present application include but are not limited to the follows:

BL-5412 115 LU501320

1. The odor intensity of pig feces is significantly reduced.

2. The irritation intensity of pig feces is significantly reduced.

3. The odor quality of pig feces is significantly improved.

4. The concentration of ammonia and hydrogen sulfide in pig feces is significantly reduced. In the premixed feed for improving the odor of pig feces and the application thereof provided by the present application, used raw materials and reagents may be purchased from the market. The present application will be further described below in combination with the examples. Example 1: formula of premixed feed for improving odor of pig feces A premixed feed for improving the odor of pig feces included the following components:

4.35g of copper citrate, 41.86g of zinc lactate, 400.4g of benzoic acid, and 553.39g of silicon dioxide. In other words, each ton of formulated feed was provided with 7.5g of copper in the form of copper citrate, 45g of zinc in the form of zinc lactate, and 2000g of benzoic acid. Example 2: formula of premixed feed for improving odor of pig feces A premixed feed for improving the odor of pig feces included the following components:

2.9g of copper citrate, 46.51g of zinc lactate, 400.4g of benzoic acid, and 550.19g of silicon dioxide. In other words, each ton of formulated feed was provided with 5g of copper in the form of copper citrate, 50g of zinc in the form of zinc lactate, and 2000g of benzoic

BL-5412 LU501320 acid. Example 3: formula of premixed feed for improving odor of pig feces A premixed feed for improving the odor of pig feces included the following components:

5.8g of copper citrate, 37.21g of zinc lactate, 400.4g of benzoic acid, and 556.59g of silicon dioxide. In other words, each ton of formulated feed was provided with 10g of copper in the form of copper citrate, 40g of zinc in the form of zinc lactate, and 2000g of benzoic acid. Example 4: formula of premixed feed for improving odor of pig feces A premixed feed for improving the odor of pig feces included the following components:

2.9g of copper citrate, 37.21g of zinc lactate, 400.4g of benzoic acid, and 559.49g of silicon dioxide. In other words, each ton of formulated feed was provided with 5g of copper in the form of copper citrate, 40g of zinc in the form of zinc lactate, and 2000g of benzoic acid. Example 5: formula of premixed feed for improving odor of pig feces A premixed feed for improving the odor of pig feces included the following components:

5.8g of copper citrate, 46.51g of zinc lactate, 400.4g of benzoic acid, and 547.29g of silicon dioxide. In other words, each ton of formulated feed was provided with 10g of copper in the form of copper citrate, 50g of zinc in the form of zinc lactate, and 2000g of benzoic acid.

BL-5412 Example 6: application of premixed feed for improving odor of pig feces 7501320 In the test, 216 28-day-old weaned DLY piglets were selected and randomly divided into 6 treatments according to the principle of consistent weight and gender, each treatment included 6 replications, and each replication included 6 piglets.

After 3 days of pre-feeding, the formal test was carried out for 4 weeks.

The piglets of each test group were fed with the following diets: piglets of test group 1 were fed with 1 ton of control group diets + 5kg of carriers (zeolite powder), piglets of test group 2 were fed with 1 ton of control group diets + 5kg of premixed feed in example 1, piglets of test group 3 were fed with 1 ton of control group diets + 5kg of premixed feed in example 2, piglets of test group 4 were fed with 1 ton of control group diets + 5kg of premixed feed in example 3, piglets of test group 5 were fed with 1 ton of control group diets + Skg of premixed feed in example 4, piglets of test group 6 were fed with 1 ton of control group diets + Skg of premixed feed in example 5. No copper and zinc were added to the control group diets for test group 2, test group 3, test group 4, test group 5 and test group 6. The control group diet included 56.8% of corn, 20% of soybean meal, 10% of expanded corn, 5% of expanded soybean, 2.5% of soybean protein concentrate, 2.5% of wheat bran, 0.3% of stone powder, 1.5% of calcium hydrogen phosphate, 0.3% of salt, 0.5% of lysine hydrochloride, 0.09% of methionine, 0.2% of threonine, 0.1% of choline chloride, 0.03% of antioxidant, 0.03% of vitamin premixed feed, and 0.15% of microelement premixed feed.

For the vitamin premixed feed in the formula of the control group diet, each kilogram of diet was provided with 2200 IU of vitamin A, 220 IU of vitamin Ds, 16 IU of vitamin E, 0.5mg of vitamin Ks, 1.5mg of vitamin Bi, 4mg of vitamin Bs, 2mg of vitamin Be, 20pg of vitamin Biz, 20mg of nicotinic acid, 12mg of calcium pantothenate, 0.3mg of folic acid, and 0.08mg of biotin.

For the microelement premixed feed in the formula of the control group diet, each kilogram of diet was provided with 7.5mg of copper in the form of copper sulfate

BL-5412 a . 1 LU501320 pentahydrate, 45mg of zinc in the form of zinc sulfate monohydrate, 120mg of iron in the form of ferrous sulfate monohydrate, 20mg of manganese in the form of manganese sulfate monohydrate, 0.3mg of selenium in the form of sodium selenite, and 0.3mg of iodine in the form of calcium iodate.

After the test was finished, a replication piglet was randomly selected from each treatment group, and two fresh feces samples were collected, one sample was cryo-preserved at -20° C for pig feces odor scoring, the other sample was sealed in a sample bag and stood for 10min to determine the concentration of ammonia and hydrogen sulfide in pig feces.

Static odorimetry was used to evaluate the odor of pig feces samples.

The static odor odorimetry was a method used to detect the components in a closed system.

An odor expert group consisted of 10 people who had been trained to recognize and quantify various odors.

Each expert was given a separate bottle to smell the odor in the bottle, and then the odor intensity, irritation intensity and odor quality of feces samples were determined according to the standards shown in Table 1. The test results were as shown in Table 2 to Table 4. The concentration of ammonia and hydrogen sulfide in the pig feces samples was determined by adopting a portable ammonia-hydrogen sulfide detector.

The test results were as shown in Table 5. Table 1 Odor scoring standards | 0 | No | No | Particularly pleasant Very pleasant Slightly pleasant Medium to high | Medium to high Slightly unpleasant | 6 | High | High | Unpleasant | Very high Very high Very unpleasant 8 The highest The highest Particularly unpleasant Notes: odor intensity refers to odor concentration, measured at the first brain nerve; irritation intensity refers to irritation to the nasal tract, measured at the trigeminal

BL-5412 . . LU501320 nerve or the fifth nerve; odor quality refers to extent of being pleasant.

It can be seen from Table 2 that, compared with the control group, the odor intensity of pig feces can be significantly reduced (P < 0.05), when the premixed feeds provided in example 1 to example 5 are used to prepare piglet diets for the feeding test.

Table 2 Odor intensity scores Test Test Test Test Test Test Item groupl group2 group3 group4 group5S group 6 Scoring persons 10 10 10 10 10 10 Total score 60 46 48 45 49 43 Odor intensity score 6.0 4.6 4.8 4.5b 4.99 4.3° Notes: data in the same line with the same shoulder note or without shoulder note have no significant difference (P > 0.05); data in the same line with different lower-case letter shoulder notes have significant difference (P < 0.05). It can be seen from Table 3 that, compared with the control group, the irritation intensity of pig feces can be significantly reduced (P < 0.05), when the premixed feeds provided in example 1 to example 5 are used to prepare piglet diets for the feeding test.

Table 3 Irritation intensity scores Test Test Test Test Test Test Item group1 group2 group3 group4 groupS group 6 Scoring persons 10 10 10 10 10 10 Total score 50 38 39 37 40 35 Irritation intensity score 5.0° 3.8° 3.9 3.7° 4.0P 3.5° Notes: data in the same line with the same shoulder note or without shoulder note have no significant difference (P > 0.05), data in the same line with different lower-case letter shoulder notes have significant difference (P < 0.05).

BL-5412 . . LU501320 It can be seen from Table 4 that, compared with the control group, the odor quality of pig feces can be significantly reduced (P < 0.05), when the premixed feeds provided in example 1 to example 5 are used to prepare piglet diets for the feeding test. Table 4 Odor quality scores Test Test Test Test Test Test Item groupl group2 group3 group4 groupS group 6 Scoring persons 10 10 10 10 10 10 Total score 66 52 54 51 55 50 Odor quality score 6.6 5.25 5.4° 5.1° 5.5° 5.0 Notes: data in the same line with the same shoulder note or without shoulder note have no significant difference (P > 0.05), data in the same line with different lower-case letter shoulder notes have significant difference (P < 0.05). It can be seen from Table 5 that, compared with the control group, the concentration of ammonia and hydrogen sulfide in pig feces can be significantly reduced (P < 0.05), when the premixed feeds provided in example 1 to example 5 are used to prepare piglet diets for the feeding test. Table 5 Concentration of ammonia and hydrogen sulfide in pig feces Test Test Test Test Test Test Item group group group group group group 1 2 3 4 5 6 Concentration of

89.36% 53.13) 56.50° 52.50° 57.125 50.23 ammonia, mg/m° Concentration of

11.93% 634) 652° 627 6.78 6.02° hydrogen sulfide, mg/m° Notes: data in the same line with the same shoulder note or without shoulder note have no significant difference (P > 0.05), data in the same line with different lower-case letter shoulder notes have significant difference (P < 0.05).

BL-5412 To sum up, the application of the premixed feed for improving the odor of pig feces 507920 provided by the present application can significantly reduce the odor intensity of pig feces, significantly reduce the irritation intensity of pig feces, significantly improve the odor quality of pig feces, and significantly reduce the concentration of ammonia and hydrogen sulfide in pig feces.

What are described above are only preferred examples of the present application.

It should be pointed out that those skilled in the art may make various improvements and modifications without departing from the principle of the present application, which, however, should also be regarded as the scope of protection of the present application.

Claims

BL-5412 LU501320 CLAIMS

1. A premixed feed for improving the odor of pig feces, wherein the premixed feed comprises the following components in parts by weight: copper citrate 2.9-5.8 parts zinc lactate 37.21-46.51 parts benzoic acid 400.4 parts silicon dioxide 547.29-559.49 parts

2. The premixed feed according to claim 1, wherein the premixed feed comprises the following components in parts by weight: copper citrate 4.35 parts zinc lactate 41.86 parts benzoic acid 400.4 parts silicon dioxide 553.39 parts or copper citrate 2.9 parts zinc lactate 46.51 parts benzoic acid 400.4 parts silicon dioxide 550.19 parts or copper citrate 5.8 parts zinc lactate 37.21 parts benzoic acid 400.4 parts silicon dioxide 556.59 parts or copper citrate 2.9 parts zinc lactate 37.21 parts

BL-5412 . . LU501320 benzoic acid 400.4 parts silicon dioxide 559.49 parts or copper citrate 5.8 parts zinc lactate 46.51 parts benzoic acid 400.4 parts silicon dioxide 547.29 parts

3. The premixed feed according to claim 1 or 2, wherein the content of copper in copper citrate is more than or equal to 34.5%, and the content of copper citrate is more than or equal to 98.0%.

4. The premixed feed according to any one of claims 1-3, wherein the content of zinc in zinc lactate is more than or equal to 21.5%, and the content of zinc lactate is more than or equal to 98.0%.

5. Application of the premixed feed according to any one of claims 1-4 to improvement of the odor of pig feces.

6. A method for using a premixed feed for improving the odor of pig feces, wherein Skg of the premixed feed are added to each ton of formulated piglet feed.

7. A feed, wherein the feed comprises the premixed feed according to any one of claims 1-4 and acceptable raw materials and/or auxiliary materials in feeds.

8. The feed according to claim 7, wherein the mass percent content of the premixed feed according to any one of claims 1-4 in the feed is 0.5%.

9. The feed according to claim 8, wherein Skg of the premixed feed according to any one of claims 1-4 are added to each ton of the feed.

10. Application of the feed according to any one of claims 7-9 to improvement of the odor of pig feces.