JP6444257B2 - Livestock litter - Google Patents

Description

  The present invention relates to a livestock bedding used for the purpose of preventing disease of livestock.

Conventionally, livestock litter has been used on the floor surface for raising livestock in livestock houses such as cowsheds, pig houses, stables, etc., in order to raise livestock in a comfortable and clean environment.
As such livestock litter, various materials such as rice straw, wheat straw, sawdust, rice husk, wood chips, bark, bark, paper, coconut shell chips, recycled compost, sand and pulp sludge are used. Contaminated by manure, etc., microorganisms such as coliforms may grow and cause diseases such as diarrhea.
Occurrence of diarrhea due to coliforms and the like leads to deterioration of productivity particularly in the pig farming industry.

  In addition, the occurrence of diseases caused by viruses such as coronavirus is also a problem. For example, swine epidemic diarrhea (PED) has been in fashion since it was discovered in Okinawa Prefecture in October 2013 and in Ibaraki Prefecture in November. Even in foreign countries, significant infection damage has been reported in the United States, Canada, and other countries. PED is a pathogen of PED virus belonging to the genus Coronaviridae (Alphacoronavirus). It is said that PED is orally infected mainly through stool and is also infected through contaminated devices. PED affects pigs of all ages, but symptoms are particularly severe in young pigs, and mortality in suckling pigs can reach 100%. The national epidemic of PED in young pigs puts pressure on the pig farming business.

  Livestock such as cattle, horses, and pigs is very important for a period of 1 to 2 months from birth. If health can be maintained at this time, production efficiency will be very high. R & D is being conducted from various angles to see if there is anything that can respond immediately to such a case.

  Examples of livestock litter that has been given antibacterial action against bacteria such as coliform bacteria include, for example, coffee-extracted straw and livestock breeding litter containing 20% or less of sawdust with a moisture content of less than 20%. In addition, a deodorizing antibacterial litter for animal breeding impregnated with chitosan and antibacterial silver (Patent Document 2) has been proposed, and as a livestock litter imparted with a virus infection preventing effect, an inorganic oxide having a porous structure A litter for livestock and poultry (Patent Document 3) composed of sand-like particles in which fine particles having a photocatalytic function are supported on the surface and pores of the particles is proposed.

  However, it excels in absorbability of livestock manure, etc., has low irritation to skin, etc., has few problems in handling such as generation of dust, and has sufficient antibacterial and antibacterial activity against bacteria and viruses such as E. coli. There is a demand for a livestock litter that exhibits a virus action and can be prepared easily and inexpensively.

JP 2005-287369 A JP 2009-124952 A JP 2013-106561 A

  Therefore, the present invention provides a livestock litter that is excellent in antibacterial activity and antiviral activity against bacteria such as Escherichia coli, and can dramatically improve the reduction in fattening efficiency due to diseases of young animals such as piglets. For the purpose.

  The present inventor has already disclosed that a functional material composition containing a volcanic ejecta foam and an inorganic alkaline substance has a carbon dioxide and volatile organic compound adsorption ability and a humidity control function (Japanese Patent Laid-Open No. 2013). -63866). As a result of diligent research to solve the above problems, a composition in which the mixing weight ratio of the volcanic ejecta foam and the inorganic alkaline substance is 1: 0.01 to 1: 0.5 is used for the livestock litter. Thus, the inventors have found that the function of removing bacteria such as Escherichia coli and viruses is enhanced, and have completed the present invention.

That is, the present invention is as follows.
[1] The weight ratio [(A) :( B)] between (A) and (B) of (A) volcanic ejecta foam and (B) inorganic alkaline substance is 1: 0.01-1: 0. A livestock bedding comprising a composition that is contained to be 5.
[2] The livestock litter according to [1], wherein the volcanic ejecta foam is at least one selected from the group consisting of shirasu foam, obsidian foam, and nacreous foam.
[3] The inorganic alkaline substance is sodium hydroxide, potassium hydroxide, magnesium hydroxide, calcium hydroxide, sodium silicate, potassium silicate, magnesium silicate, calcium silicate, sodium carbonate, potassium carbonate, magnesium carbonate and carbonic acid. The livestock litter according to [1] or [2], which is at least one selected from the group consisting of calcium.
[4] The livestock litter according to any one of [1] to [3], wherein the composition containing (A) a volcanic ejecta foam and (B) an inorganic alkaline substance is solidified with carbon dioxide.
[5] The livestock litter according to any one of [1] to [4], wherein the composition containing (A) a volcanic ejecta foam and (B) an inorganic alkaline substance is powdery or granular.
[6] The livestock litter according to [5], wherein an average particle size of the composition containing (A) a volcanic ejecta foam and (B) an inorganic alkaline substance is 50 μm to 1,000 μm.
[7] The livestock litter according to any one of [1] to [6], which is used in at least one place of a delivery house, a heat insulation box, and a fattening house.

According to the present invention, it has excellent antibacterial activity and antiviral activity against pathogenic bacteria such as Escherichia coli, is highly effective in preventing diseases of livestock, has good absorbency of water absorption and volatile organic compounds, etc., and suppresses odor It is also possible to provide an excellent livestock bedding.
In addition, the livestock litter of the present invention can be easily produced and can be provided at low cost because it uses volcanic ejecta.
Furthermore, since the livestock litter of the present invention does not inhibit composting, it is also suitable for reuse as compost.

FIG. 1 is a graph showing the carbon dioxide adsorptivity evaluation results for the composition used for the livestock bedding of Example 2. FIG. FIG. 2 is a diagram showing the evaluation results of the volatile organic compound adsorptivity for the composition used in the livestock litter of Example 2.

  The livestock litter of the present invention comprises (A) a volcanic product foam and (B) an inorganic alkaline substance, wherein the weight ratio ([A]: [B]) of (A) and (B) is 1: 0.01. A composition containing ˜1: 0.5 (hereinafter sometimes referred to as “the composition for a bedding of the present invention”) is contained.

The (A) volcanic ejecta foam used in the composition for a litter of the present invention is obtained by heating fine particles and powder of the volcanic ejecta to about 700 ° C. to 1,100 ° C., preferably about 850 ° C. to 1,000 ° C. Obtained by foaming.
The volcanic ejecta used for the preparation of the above volcanic ejecta foam is a substance ejected to the ground surface during volcanic activity, and includes volcanic debris such as volcanic ash and volcanic gravel. For the purposes of the present invention, shirasu, pumice, mullet, obsidian, nacre, etc. are preferably used as volcanic ejecta. Of these, shirasu, obsidian, and pearlite are more preferred.

  In the present invention, as (A) volcanic ejecta foam, one or two or more types can be selected from the above-mentioned volcanic ejector fine particles and powdered foams. Shirasu foam (shirasu balloon), obsidian foam (perlite) and nacreous foam (perlite) are preferred, and shirasu foam is superior in strength for maintaining the porosity of the composition for bedding. Is more preferable.

The average particle size of (A) volcanic product foam used in the laying composition of the present invention is usually 5 μm to 300 μm for shirasu foam, 50 μm to 3,000 μm for obsidian foam, and 50 μm to 3 for nacreous foam. 1,000 μm, preferably 30 μm to 200 μm for shirasu foam, 50 μm to 300 μm for obsidian foam, and 50 μm to 300 μm for nacreous foam.
In addition, the said average particle diameter is the value calculated and measured by the sieving method mentioned later.

Examples of the inorganic alkaline substance (B) used in the composition for bedding according to the present invention include hydroxides of alkali metals such as sodium hydroxide and potassium hydroxide, and hydroxides of alkaline earth metals such as magnesium hydroxide and calcium hydroxide. , Alkali metal salts of silicic acid such as sodium silicate and potassium silicate, alkaline earth metal salts of silicic acid such as magnesium silicate and calcium silicate, alkali metal salts of carbonic acid such as sodium carbonate and potassium carbonate, carbonic acid Examples thereof include alkaline earth metal salts of carbonic acid such as magnesium and calcium carbonate. One of these may be selected and used alone or in admixture of two or more.
For the purpose of the present invention, as the (B) inorganic alkaline substance, an alkali metal salt of silicic acid is preferably used, and sodium silicate and potassium silicate are more preferably used.
In addition, (B) inorganic alkaline substance may be used in the state of a powder, and may be used as aqueous solution.

The composition for litter of the present invention comprises (A) a volcanic ejecta foam and (B) an inorganic alkaline substance, wherein the weight ratio ([A]: [B]) between (A) and (B) is 1: 0. It contains so that it may become 01-1: 0.5. The weight ratio ([A]: [B]) of (A) and (B) is preferably 1: 0.02 to 1: 0.4, and is 1: 0.02 to 1: 0.3. It is more preferable that
(A) When the weight ratio ([B] / [A]) of the (B) inorganic alkaline substance to the volcanic ejecta foam is smaller than 0.01, the antibacterial activity and the antiviral activity are lowered, which is not preferable. On the other hand, if the weight ratio of (B) inorganic alkaline substance to (A) volcanic ejecta foam ([B] / [A]) is greater than 0.5, the livestock that ate the livestock litter may have anorexia There is a risk of adverse effects on the product, and the cost is increased, which is not preferable in terms of economy.

An adsorbent such as activated carbon, charcoal, bamboo charcoal and the like can be further added to the bedding composition of the present invention as long as the characteristics of the present invention are not impaired.
Moreover, the composition for bedding according to the present invention may be charged into a container, bag, etc., sealed, and solidified by injecting carbon dioxide.
The composition for a bedding according to the present invention is preferably in a solid form such as granular, powdery, granular or gel, and more preferably in granular or powdery form.
The average particle size of the composition for bedding which is granular or powdery is usually 50 μm to 1,000 μm, preferably 100 μm to 500 μm, more preferably 150 μm to 150 μm, as measured and calculated by a sieving method described later. 300 μm.

  The composition for litter of the present invention is a mixture of (A) a volcanic ejecta foam and (B) an inorganic alkaline substance at the above weight ratio, and optionally added and mixed with additional components such as other adsorbents. Thereafter, it can be prepared by drying, pulverizing, granulating, sizing or the like, if necessary.

  The mixing of (A) volcanic ejecta foam and (B) inorganic alkaline substance, or other additional components can be performed by a general mixing method used for mixing granular materials, and a horizontal cylindrical mixer , V type mixers, double cone type mixers, oscillating rotary type mixers, single axis ribbon type mixers, double axis paddle type mixers, rotary working type mixers, conical screw type mixers, etc. Use a mixing stirrer or the like.

The mixture can be pulverized by a general pulverization method, and either dry pulverization or wet pulverization can be used depending on the state of the inorganic alkaline substance (B) at the time of mixing. That is, when (B) the inorganic alkaline substance is mixed in a solid state, dry pulverization is preferably employed, and when mixed in the form of an aqueous solution, wet pulverization is preferably employed.
Examples of dry pulverization include jet mill pulverization and mechanochemical pulverization. Examples of wet pulverization include colloid mill pulverization.

Granulation of the mixture can be performed by a general granulation method, and either dry granulation or wet granulation can be used depending on the state of (B) the inorganic alkaline substance at the time of mixing. That is, when the inorganic alkaline substance (B) is mixed in a solid state, dry granulation is preferably employed, and when it is mixed in an aqueous solution, wet granulation is preferably employed.
Examples of the dry granulation include a slug method and a roller compactor method, and examples of the wet granulation include a stirring and mixing granulation method, a spray drying granulation method, a fluidized bed granulation method, a rolling granulation method, and a rolling fluidization method. Examples include layer granulation method and extrusion granulation method.

  For the sizing of the mixture, a general sizing method can be adopted. Such sizing methods include grinding sizing, pulverization sizing with classification function, pulverization sizing, wet continuous sizing, rotary centrifugal crushed sizing, high speed or low speed rotary sizing, spherical sizing, etc. Can be mentioned.

  The mixture is preferably dried by natural drying such as air drying or sun drying.

In the above method for preparing the composition for a litter of the present invention, (A) a volcanic ejecta foam and (B) an inorganic alkaline substance, and other additive components as necessary are mixed, and if necessary, dried, pulverized and granulated. After performing the above, it can be solidified by putting it in a plastic container or bag, sealing it, and injecting carbon dioxide to react it.
In particular, when (B) an alkali metal salt of silicic acid such as sodium silicate or potassium silicate is used in the form of an aqueous solution as an inorganic alkaline substance, (A) a mixture with a volcanic ejecta foam is carbonated. By reacting with gas and solidifying, the strength and dispersibility of the bedding composition are improved, and mixing with other bedding materials is facilitated, which is preferable.

The composition for bedding according to the present invention can be used as a bedding for livestock as it is or by mixing with other bedding materials such as sawdust, wood chips, rice husks and rice straw.
In the present invention, the form of the bedding composition can be appropriately selected depending on the place where the livestock bedding is used. For example, a delivery composition or a heat insulation box uses a powdered composition for a litter, and a fattening house increases the use ratio of a granular composition for the purpose of suppressing the generation of dust and improving workability. .

  The content of the composition for bedding in the livestock bedding of the present invention is preferably 70% by weight to 100% by weight and more preferably 90% by weight to 100% by weight with respect to the total amount of the livestock bedding.

  The livestock litter of the present invention is a mammal bred for livestock in general, for example, cattle, pigs, sheep, goats, rabbits and other meats; Can be used for pets such as dogs, cats, hamsters, guinea pigs, chipmunks; mammals reared for labor such as alpaca, horse, mule, camel, donkey, etc. It can be suitably used for livestock, and can be particularly suitably used for animals in the delivery period, feeding period and weaning period, and fattening animals in need of disease prevention.

The composition for bedding according to the present invention has absorptivity to volatile organic compounds such as moisture absorption, water absorption, carbon dioxide, formaldehyde, etc., and against odor-causing substances such as ammonia, methyl mercaptan, hydrogen sulfide, methyl sulfide, and trimethylamine. Adsorbability is shown. It also has excellent antibacterial and antiviral activities.
Therefore, the livestock litter of the present invention comprising such a litter composition is excellent in absorbability of feces and urine and the like, and is effective in suppressing the foul odor, contributes to the improvement of the livestock rearing environment, and has antibacterial activity and antibacterial activity against pathogenic bacteria. Because of its excellent virus activity, it is excellent in preventing diseases of livestock.
Therefore, the litter for livestock of the present invention, such as a delivery house, a heat insulation box and a fattening house, in each of the breeding facilities of suckling and weaning animals that are most required for disease prevention, and juvenile livestock after weaning, It can be preferably used as a bedding.
Moreover, since the composition for bedding according to the present invention does not prevent composting by resident bacteria in the bedding material, the bedding for livestock according to the present invention can be reused as compost.

  Next, the present invention will be described more specifically with reference to examples.

Measuring method of average particle diameter The average particle diameter of the (A) volcanic ejecta foam described in the present specification and the composition for a litter of the present invention was measured by the following method (sieving method).
5 to 10 stages of standard sieves were mounted on an electromagnetic sieve shaker (manufactured by ASONE Co., Ltd.), and the samples were classified by shaking and measured according to the weight ratio of each particle size category. That is, the standard sieves were stacked one on top of the other with a large mesh opening, 20 g of the sample was placed in the upper stage, shaken for 15 minutes, the weight of the sample remaining on each sieve was measured, and the particle size distribution was determined.
Next, for the sample sieved for each sieve, the ratio (% by weight) with respect to the total amount of the sample is calculated, and the ratio (% by weight) for each sieve is added in order from the top. The total value (% by weight) before exceeding 50% by weight is [d], the total value (% by weight) after exceeding 50% by weight is [e], and the total ratio of the sample weight is 50% by weight. The under value (μm or mm) of the particle size category that does not exceed is [a]. Then, the classification including the particle diameter in which the total ratio of the sample weight exceeds 50% by weight is specified, the over value (μm or mm) of the particle diameter classification is [b], and the under value (μm or mm) is [c The weight average particle diameter was determined from the following formula (I).
Average particle diameter (μm or mm) = a − [(bc) × {(50−d) / e}] (I)

[Example 1] Livestock litter 1,000 g of shirasu foam ("Shirasu Balloon": average particle size = 40 µm, manufactured by Nao Toyowa Co., Ltd.) was added to a mixing stirrer ("Mortar mixer", manufactured by Tokai Machinery Co., Ltd.). Then, 100 g of water glass (“Sodium silicate 3”, manufactured by Nippon Chemical Industry Co., Ltd.) is mixed and stirred while spraying with a sprayer, sealed in a plastic bag, and then reacted by injecting 30 g of carbon dioxide. Thus, a bedding composition (average particle size = 100 μm) was obtained and used as a livestock bedding.

[Example 2] Livestock litter 1,000 g of shirasu foam ("Shirasu balloon": average particle size = 150 μm, manufactured by Towa Naoshi Co., Ltd.) is added to a mixing stirrer ("Mortar mixer", manufactured by Tokai Machinery Co., Ltd.). Then, potassium silicate aqueous solution (silicon dioxide (SiO ₂ ) concentration = 27 wt% to 29 wt%, potassium oxide (K ₂ O) concentration = 21 wt% to 23 wt%, manufactured by Nippon Chemical Industry Co., Ltd.) 100 g Was mixed and stirred while sprayed with a sprayer, sealed in a plastic bag, injected with 30 g of carbon dioxide gas, reacted to obtain a composition for bedding (average particle size = 300 μm), and used as a bedding for livestock.

Table 1 shows the results of component analysis of the bedding composition obtained in Example 2. Moreover, the carbon dioxide adsorptivity and the adsorptivity of formaldehyde as a volatile organic compound were evaluated, and the results are shown in FIGS.
Component analysis was entrusted to the Kagoshima Prefectural Industrial Technology Center, and was performed by fluorescent X-ray analysis (equipment used: “X-ray fluorescence analyzer RIX-3000”, manufactured by Rigaku Corporation, calibration curve method). The ignition loss shown in Table 1 is a gravimetric analysis method (calculated from the weight reduction rate when the sample is ignited at 1,000 ° C. for 1 hour in an electric muffle furnace (manufactured by Ito Manufacturing Co., Ltd.)). It was measured by.
Carbon dioxide adsorptivity and formaldehyde adsorptivity were evaluated by the method described in JP2013-063866A using 10 g of the composition for bedding obtained in Example 2 as a sample and using sodium silicate as a control.

  From Table 1, it was shown that the composition for bedding obtained in Example 2 is a ceramic composition mainly composed of silicon dioxide and aluminum oxide.

As shown in FIG. 1 and FIG. 2, good carbon dioxide adsorptivity and formaldehyde adsorptivity were recognized in the composition for a bedding obtained in Example 2.
Therefore, the livestock litter of Example 2 has an effect of adsorbing carbon dioxide discharged from livestock and an effect of adsorbing volatile organic compounds such as formaldehyde in the livestock house, and can be expected to suppress malodor in the livestock house.

[Test Example 1] Antibacterial test The livestock bedding of Example 2 was subjected to an antibacterial test against Escherichia coli as follows.
(1) Test method (i) Escherichia coli NBRC 12734 was used as a test bacterium.
(Ii) The test bacteria are inoculated into lecithin polysorbate 80 added soy bean casein digest (SCDLP) bouillon medium (Eiken Chemical Co., Ltd.) and cultured at 35 ± 1 ° C., and the culture solution is about 10 ⁷ cells / mL. As a result, it was diluted with sterile physiological saline to prepare a bacterial stock solution.
Glass beaker (iii) 1,000 mL, placed in sterile physiological saline 600 mL, was added to the cells stock solution 1mL, the solution to the number of bacteria per 1mL of about 10 ⁴ stand, Example 2 Was immersed in 50 g of livestock litter to prepare a test solution.
On the other hand, 600 mL of sterilized physiological saline was added to a 1,000 mL stoppered medium bottle, and 1 mL of the above bacterial stock solution was added so that the number of bacteria per mL was about 10 ⁴ units. .
(Iv) About the said test solution and control solution, the viable cell count was measured at the time of preparation and after leaving still at room temperature for 15 minutes, 30 minutes, and 60 minutes by the pour culture method. The culture was performed at 35 ± 1 ° C. for 24 hours using a standard agar medium (manufactured by Eiken Chemical Co., Ltd.).
(2) Evaluation results The evaluation results are shown in Table 2 below.

  In Table 2, E. coli in the control solution did not decrease at all even after 60 minutes, whereas in the test solution in which the livestock bedding of Example 2 of the present invention was immersed, E. coli decreased with time. After a lapse of time, the amount decreased to about 1/1000 at the time of preparation, and it was confirmed that the feed additive of Example 2 had antibacterial activity against E. coli.

[Test Example 2] Breeding test Using the livestock bedding obtained in Example 2, a breeding test was conducted.
At Yeongdeung Pig Farm (Kagoshima Prefecture), from December 2012 to April 2013, the livestock litter of Example 2 was first laid on each of the delivery house and the heat insulation box in an amount of 1,000 g. 50 mother pigs and their piglets were raised and observed for 30 days until weaning. The fattening house was first laid with 1,000 g, and was grown and observed for 40 days after weaning. In each piggery, livestock litter was added from time to time as much as reduced.
In addition, as a control group, a total of 20 mother pigs and their piglets were raised and observed for 30 days until weaning in a delivery house and heat insulation box using sawdust as livestock bedding.

There was no occurrence of PED in both the livestock litter use group and the control group of Example 2, and there was no difference in mortality between the two groups. Compared with the control piglet, it was clearly healthy and looked healthy.
However, after weaning, since the piglets of both groups were bred in a fattening house using the livestock bedding of Example 2, data on the length of fattening days could not be obtained. However, it was speculated that there was a clear difference in the number of fattening days in both groups from comparison of the fur and the like.

[Example 3] Litter for livestock 100 kg of shirasu foam ("Shirasu Balloon": average particle diameter = 150 μm, manufactured by Towa Naoshi Co., Ltd.) was added to a mixing stirrer ("Mortar mixer", manufactured by Tokai Machinery Co., Ltd.). Next, 30 kg of a 21 wt% to 23 wt% potassium silicate aqueous solution (manufactured by Nippon Chemical Industry Co., Ltd.) was added, mixed and stirred, sealed in a plastic bag, and then reacted by injecting 300 g of carbon dioxide gas, A bedding composition (average particle size = 300 μm) was obtained and used as a livestock bedding.

  10 g of the bedding composition obtained in Example 3 was placed in 50 mL of distilled water, stirred at 30 ° C., and measured for pH with a pen-type pH meter (manufactured by Sato Keiki Seisakusho Co., Ltd.) after 1 hour. Was 12.2, and the bedding composition of the present invention showed strong basicity.

[Test Example 3] Observation of PED generation status Using the livestock bedding of Example 3, pigs were bred from parturition to lactation, and the status of PED generation was observed.
At the A pig farm in Narita, Chiba, from August to December 2013, the livestock litter of Example 3 was first spread in each of the delivery house and the heat insulation box, 1,000 g each, totaling 100 heads Mother pigs and 1061 piglets were raised and observed for 30 days until weaning. Livestock litter was added from time to time as much as it was reduced.

  During the period of this test, the occurrence of PED was observed in most of the other pig farms, but no PED was observed in 1061 piglets raised in this pig farm.

[Test Example 4] Breeding test From June to September 2013, the livestock litter of Example 3 was first added to each of the delivery house and the heat insulation box at B pig farm in Kagoshima Prefecture, Kagoshima Prefecture. A total of 40 mother pigs and 416 piglets were bred for 30 days until weaning and observed. Livestock litter was added from time to time as much as it was reduced.
As a control group, a total of 20 mother pigs and their piglets were bred and observed for 30 days until weaning in a delivery house and heat insulation box using sawdust as a livestock bedding.

  In the livestock bedding use group of Example 3 and the control group, no occurrence of PED was observed, and there was no difference in mortality between the two groups. However, in the livestock bedding use group of Example 3, the glossiness was significantly recognized as compared to the control group.

[Test Example 5] Composting test of bedding (1) To 20 kg of pig manure (Yongde pig farm), 3.6 kg (20 L) of the composition for bedding prepared in Example 3 (average particle size = 300 μm) was added. The mixture was stirred and adjusted so that the water content was approximately 60% by weight. The mixture was placed in a 100 L plastic container, stirred once a day (2 minutes with a scoop), and the temperature of the mixture was measured after 6 hours. Moreover, the change of the odor of the said mixture was observed.
As a result, the temperature of the mixture reached 36 ° C. on the second day, 57 ° C. on the fifth day, and completely odorless on the 12th day.
(2) To 20 kg of pig manure (Yongde pig farm), 20 kg of the composition for bedding prepared in Example 3 (average particle size = 300 μm) is added and mixed and stirred so that the water content is about 60% by weight. It was adjusted. The mixture was placed in a 100 L plastic container, stirred once a day (2 minutes with a scoop), and the temperature of the mixture was measured after 6 hours. Moreover, the change of the odor of the said mixture was observed.
As a result, the temperature of the mixture reached 38 ° C. on the second day, 59 ° C. on the fifth day, and became completely odorless on the tenth day.

  From the above results, the livestock litter of the present invention exhibits antibacterial activity, but is mixed with livestock manure under normal conditions (for example, manure: livestock litter = 1: 0.1 to 1: 1 mixed at a weight ratio) ) And composting was confirmed not to impede composting.

For comparison, using the inorganic powders of zeolite, shell fossil, shirasu, pumice, borax, sand, and kaolin instead of the bedding composition prepared in Example 3, the above (1) and (2) A composting test was conducted in the same manner as above.
As a result, in any mixture of manure and the inorganic powder, no increase in temperature over time was observed, a rotting odor was generated from the 14th day, and manure composting was not promoted.

  As described in detail above, according to the present invention, a livestock bedding excellent in antibacterial activity and antiviral activity against pathogenic bacteria such as Escherichia coli, having high preventive effect on livestock diseases, and excellent in odor control effect, It can be provided inexpensively and easily.

Claims (7)

(A) Volcanic ejecta foam and (B) inorganic alkaline substance, (A) and (B) weight ratio [(A) :( B)] will be 1: 0.01-1: 0.5. A composition for a livestock bedding , wherein the inorganic alkaline substance is an alkali metal hydroxide, an alkaline earth metal hydroxide, an alkali metal salt of silicic acid, or silicic acid A livestock litter which is one or more selected from the group consisting of alkaline earth metal salts, alkali metal carbonates and alkaline earth metal carbonates .   The litter for livestock according to claim 1, wherein the volcanic product foam is at least one selected from the group consisting of shirasu foam, obsidian foam, and nacreous foam.   Inorganic alkaline substance consists of sodium hydroxide, potassium hydroxide, magnesium hydroxide, calcium hydroxide, sodium silicate, potassium silicate, magnesium silicate, calcium silicate, sodium carbonate, potassium carbonate, magnesium carbonate and calcium carbonate The livestock litter according to claim 1 or 2, which is at least one selected from the group.   The livestock litter according to any one of claims 1 to 3, wherein the composition containing (A) a volcanic ejecta foam and (B) an inorganic alkaline substance is solidified by carbon dioxide.   The livestock litter according to any one of claims 1 to 4, wherein the composition containing (A) a volcanic ejecta foam and (B) an inorganic alkaline substance is powdery or granular.   The livestock litter according to claim 5, wherein the average particle size of the composition containing (A) a volcanic ejecta foam and (B) an inorganic alkaline substance is 50 µm to 1,000 µm.   The litter for livestock according to any one of claims 1 to 6, which is used in at least one place of a delivery house, a heat insulation box and a fattening house.