Commercial concentrated feeds are traditionally a major component of rabbit diets which contain Cadmium element in quantities above generally accepted level. This toxic trace element can accumulate in meat, kidneys, liver, bones and spleen of rabbits. Consumption of such meat and by-products will contribute to the accumulation of Cadmium in the human body, which may lead to a number of pathological changes. In this study, 100 young rabbits-analogues of silver breed were selected, and divided into 5 groups, 20 rabbits in each group: the 1st group was the control group, the 2nd, 3rd, 4th and 5th were experimental with total 60 days duration period. Results showed the smallest content of Cadmium in slaughter products was observed in the rabbits at 5th experimental group. In conclusion, the course of the experiment, it has been established that supplementation into the rabbit's mixed fodder of dry sugar beet pulp contributes to reducing the level of Cadmium accumulation in slaughter products. It has also been noted that most of Cadmium is excreted with feces, that is, it is not absorbed into the bloodstream and does not have a negative effect on the body of the rabbit.

In recent years, poultry meat production in Ukraine has increased. The main place belongs to broiler meat. Recent alternatives include known probiotics, prebiotics, enzymes, mananooligosaccharides, antioxidants, tranquilizers, bacteriostatics etc. This list we you can add Acidifiers which are composed of various acids and their salts to support increased acidity in the stomach, which contributes to the release of stomach juice and pancreatic enzymes. This, in turn, improves digestion and assimilation of nutrients. The purpose of the study is to investigate the effect of different doses Acidifier "FRA LBB DRY" in the fodder on productivity of broiler chickens. The experiments were carried out in vivarium of Bila Tserkva national agrarian university. Three analog groups of broiler chickens cross "Cobb-500" were formed at age of 3 days with 46 birds in each group.The first (control) group of broilers was fed with balanced complete feed according to the norms corresponding to age periods of growth. Chickens of the 2nd experimental group were fed with full-feed with addition of acidifier "FRA LBB DRY", at a dose of 3 kg/ton of feed, chickens of the 3rd experimental group received full-feed with addition of the acidifier at dose of 5 kg/t of feed. The addition of the acidifier to the feed had positive influence on survival of chicken broilers. In both experimental groups this index was higher than in control by 4.3%. The weight of chickens of the 2nd and the 3rd experimental groups at 42-day age was respectively 2409.4 and 2411.9 g vs. 2295.4 g in control. The total body weight increase was statically higher in experimental groups by 113,4-117.6 g and the cost of feed for 1 kg of growth was smaller than the control by 3.4%. The most objective indicator of economic evaluation of growing broiler chickens is the European index of efficiency, which in the experimental groups higher by 37.8-38.6 units than in control.

Among the pollutants one of the main factor is heavy metals. Cadmium, a typical representative of this group has a very toxic effect on both the animal and the human. It is not involved in the vital processes of living organisms. Instead, exceeding the maximum permissible levels of cadmium has negative affects on animal, and accumulation in the tissues, is a threat to human life -the consumer of animal products. The results of research show efficiency of dry apple pulp and dry beet pulp as natural detoxicant of heavy metals, including cadmium, in the body of young pigs. Experimentally proved that the cadmium content in complete feed with the maximum permissible level (1 mg/kg) predetermined decrease of average daily gain of pigs experimental group, compared with the control, by 10.8% and increase of feed conversion by 9.8%. The introduction to the mixed fodder of dry apple pulp (45 g/kg) or dry beet pulp (45 g/kg) with of the same cadmium content contributed that the productivity of animals, the cost of feed for 1 kg of growth, slaughter weight, carcass yield, weight mascara and economic efficiency of fattening young pigs approaching to the level of control. In addition, the use of dry apple pulp and dry beet pulp as natural forage detoxicant in diets of young pigs helps significantly (P <0.05-0.001), reduction of heavy metals, including cadmium in products of slaughter (meat, bacon, liver, kidney, heart), which increases their purity, environmental safety and competitiveness. Key words: pigs; cadmium; forage detoxicants; productivity; slaughter products Природні детоксиканти в раціоні та їх вплив на продуктивність і якість продуктів забою свиней на відгодівлі Л.С. Дяченко, Т.Л. Сивик, О.М. Титарьова, О.А. Кузьменко, В.В. БількевичБілоцерківський національний аграрний університет E-mail: Djachenko@hotmail.comНаведено результати досліджень ефективності використання сухого яблучного і сухого бурякового жому як природних детоксикантів важких металів, зокрема Кадмію, в організмі молодняку свиней на відгодівлі. При цьому встановлено, що вміст Кадмію в повнораціонному комбікормі в межах максимально допустимого рівня (1 мг/кг) спричинював зменшення середньодобового приросту свиней дослідної групи, порівняно з контролем, на 10,8 % та збільшення затрат корму на приріст на 9,8 %. За уведення в комбікорм сухого яблучного жому (45 г/кг) чи сухого бурякового жому (45 г/кг) за такого самого вмісту Кадмію продуктивність тварин, затрати корму на 1 кг приросту, забійна маса, забійний вихід, маса туші та економічна ефективність відгодівлі молодняку свиней наближалися до рівня контролю. Поряд з цим використання сухого яблучного і бурякового жому, як природних кормових детоксикантів у раціонах молодняку свиней на відгодівлі, сприяє вірогідному (р<0,05-0,001), зменшенню накопичення важких металів, зокрема Кадмію, в продуктах забою тварин (м'ясо, шпик, печінка, нирки, серце), що підвищує їх доброякісність, екологічну безпечність і конкурентоздатність.

In two scientific-field experiments with broiler chicken cross-breeding ”Kobb-500", the goal was set to learn the influence of different dosages, forms and types of feeding the acidifier FRA LBB DRY onto the contents of the microflora of intestine, retention and productivity of broiler chickens. The first experiment was done using three groups-analogs of broiler chickens, 46 birds per group. The broiler chickens of the first group were the control group. This group was fed a regular mixed feed. The second and third groups were fed the same mixed feed with an addition of the acidifier of FRA LBB DRY feed added; 3kg per ton of feed for the 2-nd, and 5 kg per ton for the third group. The second experiment was done using 6 similar groups-analogs of broiler chickens, 100 birds per group, with an equal ratio of male to female chicken. Throw-out the experiment all six groups were fed the same amount of fully nutritional mixed feed, in accordance with their age growth groups. As far as drinking went, the groups were hydrated differently. Birds of the first group were getting plain water, broiler chickens of the 2, 3, 4, and 5 groups were getting a mix of FRA LBB DRY acidifier in the quantities of 1,0; 1,33; 1,66 and 2,0 ml/L accordingly. The last group, group 6, was getting a dose of liquid Norfolk antibiotic in the quantity of 1 ml/L. As the bacteriological experiments have shown, after 7 days of feeding different doses of dry acidifier, the stool sample of the second and third groups of broiler chickens, when compared to the first group, had shown to contain less undesirable microflora in particular Escherichia coli – by 26,7 and 29,0 %, enterococcus by 21,4 and 24,7 % with a high probability of difference (P<0,01). At the same time the test samples contained higher concentration of useful microflora such as Bifidobacterium and lacto bacteria. The difference, when compared to the- test sample, was 18,3–24,1 % (P<0,01) and 16,5-17,8 % (P<0,05). In the second experiment adding acidifier FRA LBB DRY to water for the 2, 3, 4, and 5-th groups by 1,0; 1,33; 1,66 and 2 ml/l of water had caused a decrease of escherichia coli by 12,7 % (P<0,05), 17,4 % (P<0,01), 18,8 % (P<0,01) and 16,0 % (P<0,05), enterococcus by 14,9; 20,9; 17,8; and 16,9 % with a high degree of probability (P<0,01), at the same time increasing the amount of bifidobacteria by 19,1; 20,6; 17,9 and 21,3 %, (P<0,01) and lactobacteria by 14,4; 16,5; 15,8; 12,4 % (P<0,01). The changes that had taken place in the contents of the microflora of intestine obviously had a positive effect on digestion and processing of nutrients, which, as a result, had improved the upkeep and productivity of the broiler chickens which were exposed to the acidifier. In the first experiment departure of the broiler chickens was almost three times less than that of a control group. In the second experiment the upkeep of broilers in test groups was larger than the control by 6–7 absolute percent. Adding an acidifier into the mixed feed also increased the rate of growth in birds. Case in point, in the first experiment the growth of the body mass of one broiler of the 2-nd and 3-rd test groups was by 5,05 and 5,23 % larger than the control group. In the second experiment, both absolute and daily weight gains of 2–5-th groups were by 3,8-4,5 % larger than those of the control group. As far as comparing the expenses in terms of quantities of food per 1 kg of gains, both experiments have shown that test groups 2–3 and 2–5 consumed 3,4 and 2,7–4,3 % less than the control group. Among the objective measures that show the efficiency of the experiment, we can use the European efficiency index, which in first and second experiments was 37,8-38-6, and 32,0-50,1 points higher than the control group. Alongside with the acidifier, the experiment was also set to text the effectiveness of the use of the Norfolk antibiotic, which was given to the birds in group 6 of the second experiment. The data had shown that by absolute and daily weight gain, feed conversion, livestock retention, and European efficiency index, the birds in the 6th group definitely surpassed the control group in all categories, but fell short of the other experiment groups in almost all categories. This data lets us conclude that there is a good possibility that we can exchange the antibiotics for acidifier, with little to no loss in productivity. In summary, the data of this microbiological research shows that including acidifier into a fixed feed has a positive impact on the broiler chicken intestines microflora, which could quite possibly be one of the factors that improves the digestion and consumption process and an improved upkeep of the birds as a result. By the general evaluation of the results of the experiment, the optimal dosage of dry and liquid acidifier FRA LBB DRY for the broiler chickens can be considered 3kg/tons of mixed feed or 1,33 –1,66 ml/l of water. As a perspective of further development, the research might look into a search of acidifiers of a different biochemical nature and of a more potent action. Key words: broiler chickens, acidifier, antibiotic, microflora of the intestines, productivity.