SU606572A1 - Animal fodder additive - Google Patents

Description

The invention relates to the production of feed containing, in a complex, nitrogen and phosphorus, which are necessary for feeding animals. Urea phosphate based feed additives are known, which are obtained by mixing urea with phosphoric acid. Such additives contain one nutrient (urea) or a large amount of phosphorus (urea phosphates). When using carbamide (urea-g wine) due to the high rate of hydrolysis of urea in the rumen, intoxication of animals is possible. For low concentration feeding types, it is necessary to introduce up to 5% of urea into the compound feed to replenish the missing nitrogen of the diet. This is more than two times its permissible concentration, above which animals are intoxicated. Therefore, in the feed industry it is not possible to use urea in quantities that meet the needs of: the animals in the missing nitrogen. Intoxication of animals is practically not observed when feeding diammonium phosphate 2 However, the use of this one ammonium salt cannot fully solve the problem of enriching feed with synthetic nitrogen sources. In the diet, which is 30% deficient in protein, replenishment of the missing nitrogen by means of diammonium phosphate simultaneously increases the phosphorus content, the amount of which is two times higher than that provided by the norms of feeding. The use of diammonium phosphate does not meet the requirements of the production technology of animal feed. It is hygroscopic, caking, and also partially decomposed during storage. The release of ammonia during storage of this salt leads to the most negative results. The aim of the invention is to create a new feed additive that contains nitrogen and phosphorus in balanced quantities and is well fed with animal feed. This goal is achieved by using as an additive a nitrogen-phosphorus composition based on urea, including complex phosphates of urea and ammonium with a ratio of X P ≈ 0.75: 1-3.5: 1 and obtained by neutralizing phosphoric acid with a water ammonia solution of urea and ammonium carbamate.

This composition contains mainly complex ammonium phosphates of urea, is used as a fertilizer and can be obtained by well-known methods 31,

The use of this composition as a feed additive provides the animals' need for missing basic nutritional elements. The additive has a high degree of utilization in the body and does not possess toxic properties even in the case of feeding with an irreproachable content of animals.

The additive, called amidophosphate, has good physicochemical properties: it is obtained in granular form, not hygroscopic, does not cake during storage, its granules have high mechanical strength and are completely soluble in water.

Below are examples of the preparation of the feed additive.

Example 1. 100 kg / h of urea melt after 1 stage of distillation, containing (wt.%) Urea 60.4, ammonium carbamate 4.8, ammonia 6.2, water 28.6, neutralize 66.7 kg / h of phosphoric acid (concentration of 72.5%) at 2 atm and. After dehydration of the neutralization product in the fluidized bed apparatus, 119.8 kg / hour of the feed composition is obtained with

Live weight.one

heads, ig

I ZR s 2,3. 1 and the nutrient content of 43%.

Example 2. 100 kg / h of urea melt after distillation stage I, containing (weightL) urea 60.4 ,. ammonium carbamate 4.8, ammonia 6.2, water 28.6 g neutralize 44.5 kg / hour of phosphoric acid (concentration 72.5%) at 16 atm and. After dehydration of the neutralization product in the fluidized bed apparatus, 103.6 kg / h of the feed composition are obtained with a ratio of 4: 1 and a nutrient content of 44%.

Example 3. 100 kg / h of urea melt after the first distillation stage, containing (% by weight) urea 60.4, ammonium carbamate 4.8, ammonia 6.2, water 28.6, neutralize 223 kg / hour of phosphoric acid ( concentration of 72.5%)

at 10 atm and. After dewatering the neutralization product in a drum granulator dryer, 232.9 kg / h of composition with a ratio of W .P X: 0.76: 1 and with a nutrient content of 38% is obtained.

Experiments on feeding samples of the proposed supplement containing 35–37% nitrogen (25–26% amide and 9–12% ammonium) and 10–12% phosphorus showed that the proposed additive is much more effective than the known synthetic feed additives.

Table 1 shows the bulls' prizes when applying fodder products (additional jBOK) to the basic diet.

Table 1

Average daily gain, g

149

211

No additive

Oilcake salted "c) Deficiency in protein PA 28%. As can be seen from the data of the table, the use of amidophosphate 114 g per 1 goulder per day with the replenishment of 30% of the protein of the rshion increases the average daily yield of gobies by 28.5%, while Mo 65

483

688

843

853 723 764 884 857 chevina by only 11% and Ds1zhe sunflower oil by 22.5%. Table 2 shows the results of the tests on feeding synthetic additives with the basic diet for sheep.

22.6 29.3 117

23.2 29.9 117

22.3 28.1 102

The calculation of feed costs. On 1 kg of weight gain showed a significant decrease in this indicator in the groups / treated with the proposed feed additive in comparison with urea.

The productivity of sheep, in the diet of which the nitrogen-phosphate composition was introduced, is also higher in terms of weight gain - by 14.7% and in wool shearing - by 10.7% compared to animals treated with urea. Amidophosphate improves sheep's use of nitrogen, calcium, and phosphorus feed and increases the digestibility of all nutrients. The single dose of amidophosphate in the diet can be increased to 38 g without harming the animal, while the normal dose is 15 g per day.

Table

0.56

100

0.62

110.7 0.56 100

Claims (3)

1. Authors certificate of the USSR 355941, cl. A 23 C 1/22, 1972. 2. Dmitrochenko A.P. Mineral nutrition of farm animals. M., 1973, p. 83 . 3. USSR author's certificate 352858, cl. From 05 to 7/00, 1966.