Вплив проензиму на перетравність поживних речовин перепелами за різних рівнів сухої пивної дробини у комбікормах

Анотація

EFFECT OF PROENZYME ON DIGESTIBILITY OF NUTRIENTS BY QUAILS AT DIFFERENT LEVELS OF BREWER'S DRIED GRAIN IN MIXED FODDERS

T. A. Holubieva, K. I. Makhno

It is known that the main part of the feed is in the structure of the cost of livestock products. In this regard, it is very important to search and use of new fodder, which means, first of all, the removal from the ration of the poultry of those components that are human food products.

Brewer's dried grain – a by-product (waste) of brewing production, in dried form granules or powder with a specific bread smell from light yellow to dark brown.

The main limitation of the use of brewer's dried grain in mixed fodders for poultry is the high content of necrosis polysaccharides.

Increase of productive signs of poultry, which is grown on meat, is primarily first of all connected to increased efficiency of the use of nutrients for mixed fodder. After all, the main elements of nutrition: protein, carbohydrates, fats – can be used by the body of poultry only after their splitting into more simple substances.

For this use enzyme preparations. It is believed that their application is caused by a targeted action on natural feed polymers.

The high content of crude fiber (13%) limits the use of brewer's dried grain in poultry feeding. According to the existing recommendations for normalized feeding quails, it is not recommended to use feed containing more than 5% of crude fiber. Therefore, one of the ways of increasing the nutritional value of brewer's dried grain and mixed fodders as a whole, improving its digestibility and digestibility is the enrichment of the feed with an enzyme-probiotic additive based on bacteria of the genus Bacillus subtilis, and the cellulase enzyme. Just now its use is becoming widespread in addition to mixed fodders for quails.

Considering the above, for a more detailed study of the level of the introduction of dry beer pellets into feed was conducted scientific research in which brewer's dried grain in combination with an enzyme-probiotic additive proenzyme added to the ration.

Our purpose was to study exactly how this feed additive proenzyme in combination with brewer's dried grain in mixed fodders influences on the productivity and digestibility of the main nutrients of the feed in growing quails meat direction of productivity Pharaoh's breed.

The experiment was conducted in the research laboratory of feed additives of the National University of Life and Environmental Sciences of Ukraine. From 1-day quails according to the experimental scheme was formed on the principle of analogues 4 groups, in the amount of 100 each (50 females and 50 males).

Mixed fodders that used in the feeding of birds were close on the content of nutrients and differed in the content of brewer's dried grain. To increase the digestibility of necrosis polysaccharides into compound mixed fodders which fed the experimental group was introduced enzyme-probiotic additive proenzyme which consists of bacteria Bacillus subtilis and cellulose enzyme.

The experiment lasted 35 days and was divided into 2 periods: 1-21 and 22-35 days, each of which was characterized by a certain level of nutrients in mixed fodders. Physiological experiments to study the digestibility of nutrients was held from 16 to 21 and from 30 to 35 days old. To do this, four quail from each group were selected on the basis of analogues, which were placed individually in specially equipped cages.

Physiological experiments on the study of digestibility of nutrients show that at the introduction of brewer's dried grain in mixed fodders up to 8 % in combination with proenzyme lead to authentic increase in the availability of fiber on 2,7-2,8 % (р<0,05) and nitrogen free extract on 4,9 %.

Poultry that fed mixed fodder containing 16% brewer's dried grain in combination with proenzyme exceeded control indicators on digestibility organic substance by 2,3 %, fat by 0,5%, fiber by 2,4%, nitrogen free extract by 4,7 % and was less by protein digestibility.

Quails of the control and third groups in the first and second growing periods by the amount consumed with feed Nitrogen had similar indicators, while the quails of the second group were fed 8 % brewer's dried grain at 16-21 days received it by 2,1 % and in the 30-35 days – 3,5 % more than quail of the control group.

Quails which fed mixed fodder with the level 8 % brewer's dried grain by the number of assimilated Nitrogen from accepted with feed in the first and second age periods on 2,4; 0,2; 3,9 % and the second according to 1,4; 0,6 and 2,9 % dominated by those who consumed mixed fodder with level 4, 12 and 16 % brewer's dried grain.