JPS5822446B2 - Drugs for ad libitum consumption of pigs - Google Patents

Description

[Detailed description of the invention] The present invention relates to a drug for free consumption by pigs.

Orally administered drugs for pigs include those that are administered in a fixed measured amount once or several times, and those that are administered continuously over several days or a long period of time. Although this is relatively easy, in the latter case, the more animals there are, the more difficult the task becomes.

Therefore, in the recent intensive pig farming industry, the dosing method for controlling pigs is not practical except for special pigs such as breeding pigs kept in small numbers.

Currently, the following methods are used to administer drugs to pigs.

Since the amount of compound feed intake of pigs is appropriate for the pig's body weight (see Japanese Feeding Standards [Pig J 1975 edition), it is necessary to calculate backwards from this intake amount and add a certain amount of the desired drug at the time of manufacturing compound feed. Mix this and give it to the pigs.

(2) At the pig breeder stage, a certain amount of a specific drug is added to the compounded feed as needed, and this is given to the pigs.

(3) The drug is dissolved in the drinking water at the stage of the pig breeder and the drug is given to the pigs.

However, with method (1), it is not always possible to administer the desired amount due to factors such as fluctuations in the pig's compound feed intake due to the influence of climate, etc., and the decrease in the compound feed intake per body weight as the pig grows. .

In the case of (2), there is a risk that the pig breeder will have to work hard to uniformly add and mix the drug into a huge amount of compounded feed, and the accuracy of uniformization may be lacking.

In the case of (3) drinking water administration, there are drawbacks such as the drug becoming unstable because it is dissolved in water.

The inventors of the present invention conducted various studies on dosing methods for pigs, and found that, completely unexpectedly, when sodium polyacrylate was given to pigs, the pigs ingested it freely, and even when given for a long period of time, the amount of intake remained. was found to be limited to an almost constant amount depending on body weight.

Based on this fact, we believe that when we mix sodium polyacrylate with a certain amount of a drug depending on the purpose and allow pigs to take it freely, we will end up giving the pigs a certain amount of the drug. When we conducted the experiment, we obtained the expected results.

However, since sodium polyacrylate has hygroscopic properties, there is a drawback that when the humidity is high, especially at the time of plum blossom season, sodium polyacrylate absorbs moisture and becomes blocked.

As a result of further research, we found that when adding one or more of silicon oxide, aluminum oxide, or aluminum silicate to sodium polyacrylate, the desired effect was not lost, and sodium polyacrylate absorbs moisture when humidity is high. We discovered that it is possible to prevent blocking caused by.

The present invention was completed based on the above-mentioned findings, and relates to a drug for free ingestion by pigs, which comprises storium polyacrylate, one or more of silicon oxide, aluminum oxide, or aluminum silicate, and a drug.

The sodium polyacrylate used in the present invention is preferably one having a higher degree of polymerization, and particularly has an intrinsic viscosity of 0.8 or more (2
A high degree of polymerization (measured in a N caustic nog solution at 30° C.) is preferred, and both crushed and granulated products can be used.

The silicon oxide used in the present invention does not necessarily have to be a simple substance, and there is no particular restriction on its purity as long as it does not harm the growth of pigs even if it contains other components.

Further, the drugs used in the present invention include 1, zinc bacitracin, manganese bacitracin, oxytetracycline hydrochloride, and chlortetracycline hydrochloride.

enramycin, oxytetracycline quaternary ammonium salt, oleandomycin, kanamycin, kitasamycin, kebemycin sodium, spiramycin embonate, thioveptine, destomycin A, hygromycin B, parsiniamicin, flavophosfluoripore, polymer Antibacterial substances such as carbomycin, kanamycin sulfate, colistin sulfate, fradiomycin sulfate, tylosin phosphate, carbadox, caprylohydroxamic acid, sulfadimethoxine, pyrimethamine, panazon, piperazine sulfate, sulfamonomethoxine, vitamins, minerals, etc. Nutrient controlling factors, nutrients such as amino acids, intestinal regulating agents such as lactic acid bacteria and butyric acid bacteria, enzymes such as protease and lipase, etc. 6 To produce the free ingestion drug of the present invention, 4 to 95 weight of sodium polyacrylate is used. % and 1 of silicon oxide, aluminum oxide or aluminum silicate
0.01 to 95% of drug in mixture with more than 4 to 95% by weight of species
5.0% by weight may be added and mixed until sufficiently homogeneous, or a solution of the drug, such as an aqueous solution, may be adsorbed onto a mixture of sodium polyacrylate and silicon oxide, and then dried.

The amount of the drug for free consumption of the present invention may vary depending on the type of drug, so in that case, the amount of intake may be adjusted by adding a small amount of sweetener such as saccharin or flavoring agent such as vanilla. Can be done.

In order to administer the ad libitum drug of the present invention to pigs, it is convenient to put the ad libitum drug in a box installed in a pen and allow the pigs to take it freely.

Furthermore, the ad libitum ingestion drug of the present invention has no adverse effect on the intake amount or utilization rate of separately given compound feed.

The excellent effects of the drug for free consumption by pigs of the present invention will be described below with reference to Examples.

Experimental Example Piglets with an average weight of about 10 kg were raised in groups of 6 in each group and observed until they reached a weight of about 90 kg.

The drug for ad libitum administration had the composition listed in Table 1, and was allowed to be ingested ad libitum.

In this case, use a commercially available compound feed, and use
Artificial milk B was used for piglets weighing up to 30 kg, and fattening feed was used for growing pigs weighing approximately 30 to 90 kg.

Its components are shown in Table 2. The pig stall is 2.7 x 2.7
The amount of ad libitum drug intake was measured every other week using a concrete floor of 300 m2.

The results are shown in Table 1.

As is clear from the average intake values in Table 1, 10
It was found that the drug intake per body weight in pigs weighing ~30 kg and 30-90 kg was almost constant and did not fluctuate greatly, making it an excellent drug for ingestion.

In addition, it was confirmed that the drugs formulated for the purpose of preventing, treating, or promoting growth of pigs in this freely ingestible drug were sufficiently effective.

The method for producing the ad libitum ingestion agent for pigs of the present invention will be described below.

Example 1 95 parts of sodium polyacrylate with an intrinsic viscosity of 0.85 4.15 parts of aluminum silicate and fradiomycin sulfate (3 parts)
0.85 parts of 50712p titer/P) are thoroughly mixed with a high speed cutter to obtain the drug for free consumption.

Example 2 Sodium polyacrylate with intrinsic viscosity 0.80 20.0
0 parts, 78.75 parts of kaolin and kitasamycin (8 parts)
00~Titer/? ) 1.25 parts were thoroughly mixed in a speed mill to obtain a drug for free consumption.

Claims (1)

[Claims] 1. A drug for free ingestion by pigs, comprising sodium polyacrylate, one or more of silicon oxide, aluminum oxide, or aluminum silicate, and a drug.