Improving the fattening and meat traits of broiler chickens

Author(s):  
G. N. Vyayzenen ◽  
S. V. Razaev ◽  
A. G. Vyayzenen ◽  
N. S. Prodanov ◽  
A. E. Barashkov ◽  
...  

In order to save the cost of expensive compound feed, a number of biologically active substances (vitamins and amino acids) and improve the digestibility of nutrients for the first time in poultry meat using laser technology there is a real possibility of “transferring” the studied amino acids (methionine, glycine) and all water-soluble vitamins using a laser beam through the skin in the breast area of broiler chickens. The research has been carried out in Belgrankorm-Veliky Novgorod LLC in the Krestetsky district in the Novgorod region with a large-cage housing method of broiler chickens of the cross Hubbard. The duration of broilers rearing was 39 days, 4 recipes of compound feed based on wheat grain, corn, soybeen meal with the inclusion of fish flour, sunflower oil, corn gluten, sunflower meal, meat and bone meal and mineral additives (monocalcium phosphate, lime flour) have been used. For better assimilation of nutrients and biologically active substances by the body amino acids (methionine, glycine) and water-soluble vitamins Undevit, both individually and in combination with them in a ratio of 1:1 (by weight), in the form of powders passed through an infra-red laser beam in a spatial modulator, which were attached to two emitters (simultaneously) of the “Uzor-2K-Super” laser in the chest area have been used. Broilers of the experimental groups ate feed more often and faster than the herdmates of the control group. Air ozonation in the poultry house and broilers has been carried out in a mobile way using the Rios ozonator of the Decont series (mode 3, with a capacity of 20 g/m3 ). Innovative methods of influencing on the body caused the increase in the intensity of metabolic processes, growth and development, fattening and meat traits, and feed conversion in broilers.

Author(s):  
А.В. МИШУРОВ

Проблема и цель. Для повышения эффективности использования питательных веществ кормов целесообразно применение биологически активных веществ (БАВ), способствующих улучшению физиологических процессов в организме животных для реализации их генетического потенциала – продуктивности. Целью исследований являлось изучить влияние БАВ (дигидроквертицина и органического йода) на рубцовый метаболизм у овец. Методология. Опыт проведен методом групп периодов в условиях физиологического двора ФНЦ ВИЖ имени Л.К. Эрнста, на овцах аналогах (n=6), имеющих хронические фистулы рубца по Басову. Животные 1-й опытной группы в дополнение к основному рациону получали 100 мл ДКВ, в рацион 2-й опытной группы добавляли 100 мг ДКВ и 1,05 мг органического йода. Результаты. Использование добавок в рационах животных опытных групп повлияло на общее содержание микроорганизмов в рубцовой жидкости, составившее во второй опытной группе 1,021 г/100 мл, что выше чем в первой опытной группе на 12,7 %, и выше, чем в контрольной, на 15,4 %. При этом образование бактерий в рубцовой жидкости в первой опытной группе было выше на 22,5 %, а во второй – на 8,7 % относительно контроля. Выявлен более низкий уровень концентрации аммиака в содержимом рубца животных первой опытной группы на 4,2 мг/% относительно контрольной и на 7,1 мг/% – второй опытной группы, что взаимосвязано с более эффективным его использованием рубцовой микрофлорой. Заключение. Полученные данные свидетельствуют о том, что использование в рационе изучаемых биологически активных веществ способствовало наибольшему развитию и жизнедеятельности микроорганизмов рубца и в целом способствовало регуляции положительной динамики рубцового метаболизма, оказало положительное влияние на образование и усвояемость азота. Problem and purpose. To increase the efficiency of the use of feed nutrients, it is advisable to use biologically active substances that contribute to the improvement of physiological processes in the body of animals for the realization of their genetic potential - productivity. The aim of the research was to study the effect of biologically active substances (dihydroquerticin and organic iodine) on rumen metabolism in sheep. Methodology. The experiment was carried out by the method of groups of periods in the conditions of the physiological yard of L.K. Ernst Federal Research Center for Animal Husbandry), on sheep analogs (n=6) with chronic rumen fistulas according to Basov. Animals of the 1st experimental group received 100 ml of DHQ in addition to the main diet. The 2nd experimental group got 100 mg of DHQ and 1.05 mg of organic iodine. Results. The use of additives in the diets of the animals of the experimental groups influenced the total content of microorganisms in the rumen fluid, which was 1.021 g / 100 ml in the second experimental group, that was higher than in the first experimental group by 12.7 %, and in the control group by 15.4 %. At the same time, the formation of bacteria in the rumen fluid in the 1st experimental group was 22.5 % higher and it was 8.7 % higher in the 2nd group relative to the control. A lower level of ammonia concentration in the rumen of animals of the 1st experimental group was 4.2 mg/% lower relative to the control and by 7.1 mg/% in the 2nd experimental group, that was interrelated with its more effective use of rumen microflora. Conclusion. The data obtained indicated that the use of the studied biologically active substances in the diet promoted the greatest development and vital activity of rumen microorganisms and, in general, contributed to the regulation of the positive dynamics of rumen metabolism, had a positive effect on the formation and assimilation of nitrogen.


2015 ◽  
Vol 6 (2) ◽  
pp. 165-168
Author(s):  
S. Grabovskyi ◽  
O. Grabovska

The data about changes in neutrophils stimulation index in men blood after consumption of broiler chicken meat with the natural origin immunomodulators, introduced in feed before slaughter, is presented in this paper. Spleen extract biologically active substances were used as immunomodulators and anti-stressors during pre-slaughter period. Biologically active substances influence on putrescin, spermine and spermidine content in broiler chicken blood before slaughter and on some non-specific resistance indices in people was determined after consumption of broiler chicken meat. Two groups of broiler chickens at one month age were formed for the study. The spleen extract obtained with ultrasound application (I research group) served as biologically active substances was added to the feed of broiler chickens in pre-slaughter period (five days before slaughter). Blood polyamines such as putrescin, spermine and spermidine were determined by the method of High-performance liquid chromatography (HPLC) on the liquid chromatograph Agilent 1200 (USA). The second experiment was conducted on 10 people. We recruited 10 healthy male medical students (20 years old, on average) after the National Medical license examination. Spleen extract polyamines as immunomodulators and anti-stressors have the most effective influence on total quantity of polyamines in broiler chicken blood. As a result of research, it is found that aerosol introduction of spleen extract into broiler chicken feed reliably increases total quantity of polyamines by 39% and, in particular, spermidine concentration by 34%, and spermine by 40% compared with broiler chickens of the control group. Some non-specific body resistance indices in men blood upon consumption of broiler chicken meat varied within the physiological norm. The neutrophils stimulation index increased in men blood (+0,82) after consumption of meat of broiler chickens to which spleen extract as immunomodulator and anti-stressor was introduced before slaughter (experimental group). The neutrophils stimulation index decreased in men blood (–2,21) after consumption of broiler chickens meat at pre-slaughter stress (control group). The neutrophils stimulation index in men blood of experimental and control groups differed by 34,8%, but did not go beyond the physiological norm. At the final stage of poultry feeding it is necessary to consider pre-slaughter stress and to apply biologically active substances of natural origin, such as spleen extract. The results obtained in the experiment on broiler chickens can be used in studies of non-specific resistance indices of the farm animals for increasing the organism resistance, correction and avoiding of pre-slaughter stress and improvement of product quality


Biomics ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 389-393
Author(s):  
D.V. Mitrofanov ◽  
N.V. Budnikova

The drone brood contains a large number of substances with antioxidant activity. These substances require stabilization and strict adherence to storage conditions. Among these substances are unique decenoic acids, the content of which is an indicator of the quality of drone brood and products based on it. The ability of drone brood to reduce the manifestations of oxidative stress is shown. There are dietary supplements for food and drugs based on drone brood, which are used for a wide range of diseases. Together with drone brood, chitosan-containing products, propolis, royal jelly can be used. They enrich the composition with their own biologically active substances and affect the preservation of the biologically active substances of the drone brood. Promising are the products containing, in addition to the drone brood, a chitin-chitosan-melanin complex from bees, propolis, royal jelly. The chitin-chitosan-melanin complex in the amount of 5% in the composition of the adsorbent practically does not affect the preservation of decenic acids, while in the amount of 2% and 10% it somewhat worsens. The acid-soluble and water-soluble chitosan of marine crustaceans significantly worsens the preservation of decenoic acids in the product. Drone brood with royal jelly demonstrates a rather high content of decenoic acids. When propolis is introduced into the composition of the product, the content of decenoic acids increases according to the content of propolis.


Author(s):  
SHAPOVALOVA Nataliia ◽  
VEZHLIVTSEVA Svitlana ◽  
ANTIUSHKO Dmytro

Background. The deficiency of essential nutrients in the human body is the root cause of reduced efficiency, general resistance of the body to various diseases. That is an urgent problem in the context of the spread of coronavirus infection. In this regard, the search for opportunities to meet the needs of the population in food products that contain biologically active substances (BAS) through the use of high-value and at the same time available plant raw materials is extremely important. Marigolds attract special attention among such raw materials. The aim of the work is to study the chemical composition and evaluate the consumer properties of Tagetes L. varieties, zoned in the Kiev region, to prove the possibility of increasing the biological value of pasta by adding to their recipe powder from marigold inflorescences. Materials and methods. The object of research is pasta of B group (noodles). Inflorescences of marigolds of different varieties gathered during the flowering period in July-September 2019–2020 in the territory of Vasylkiv and Obukhiv districts of Kyiv region, Ukraine were used as enriching plant raw materials. The quality of finished pasta was assessed by organoleptic and physicochemical indexes (moisture content and titratable acidity). The content of mineral elements in the fine powder of marigold inflorescences was determined on the EXHERT-3L device, the quantitative composition and BAS identification – by spectrophotometric analysis on the device Specord-200 Analytic Jena UV-vis. The integrated quality index of pasta products was calculated taking into account the importance factors of individual indexes. Results. Comparing the obtained results, we can state that all the studied varieties – Gold Kopfen, Orange Flame, Hawaii, Equinox are characterized by high biological value, regardless of the area of collection. As a result of calculated and experimental studies it was determined that the addition of 7 % of the supplement does not provide the required supply of vitamins and minerals. Replacing the flour in the recipe by 20 % significantly improves the mineral composition, but deteriorates the taste and aromatic properties of pasta. The most optimal and rational amount of added additive is 15 %, as it improves the organoleptic properties of pasta and enriches their BAS. Conclusion. The usage of non-traditional vegetable raw materials, in particular powder from marigold inflorescences, which is rich in biologically active substances, allows not only to expand the range, improve the quality of finished products, but also increase the biological value of the product. The optimal amount of additive –powder from marigold inflorescences, was defined. It is 15 % by weight of flour in the production of noodles. This concentration allows not only to improve the organoleptic properties, but also to increase the content of biologically active substances – vitamins, micro- and macronutrients. The usage of non-traditional natural raw materials (powder from marigold inflorescences) allows to abandon artificial colorsand give the finished pasta a pleasant colorand aroma.


Author(s):  
F.I. Vasilevich ◽  
V.M. Bachinskaya ◽  
Yu.V. Petrova

Экспериментальные исследования кормовых добавок Абиотоник и Чиктоник проводили на базе вивария кафедры эпизоотологии и организации ветеринарного дела, а ветеринарносанитарную экспертизу продуктов убоя цыплятбройлеров проводили на кафедре паразитологии и ветеринарносанитарной экспертизы ФГБОУ ВО МГАВМиБ МВА имени К.И. Скрябина и ФГБНУ ФНЦ ВИЭВ РАН, аминокислотный состав мяса перепелов в Государственном бюджетном учреждении Краснодарского края Кропоткинская краевая ветеринарная лаборатория . Из цыплят в суточном возрасте кросса Кобб500 было сформировано три группы по 10 голов в каждой две опытные и контрольная опытным группам выпаивали кормовые добавки из расчета 1 мл/кг живой массы птицы до 50 суток выращивания, убой птицы проводили на 56 сутки. Тушки птицы после 24х часов созревания в холодильной камере при температуре 4 С подвергали исследованиям по общепринятым методикам: ГОСТ Р 519442002. Мясо птицы. Методы органолептических показателей, температуры и массы ГОСТ 314702012. Мясо птицы, субпродукты и полуфабрикаты из мяса птицы. Методы органолептических и физикохимических исследований аминокислотный состав мяса исследовали согласно М 0438 2009. Корма, комбикорма и сырье для их производства. Методика измерений массовой доли аминокислот методом капиллярного электрофореза с использованием системы капиллярного электрофореза Капель. Применение кормовых добавок в дозе 1 мл/кг живой массы способствовало увеличению живой массы птицы при применении Абиотоника на 54,23, а при применении Чиктоника на 37,70 по отношению к контролю. Во всех исследуемых пробах количество ЛЖК находится в пределах нормы и составило: в 1й опытной 1,390,03 мг КОН, во 2й опытной 1,420,04 мг КОН и в контрольной группе 1,810,06 мг КОН, что говорит о свежести и доброкачественности мяса. Значение рН мяса цыплятбройлеров находилось в трех группах в пределах нормы и не превышало 6,0. По результатам проведенных исследований аминокислотного состава красной и белой мышечной ткани цыплятбройлеров было установлено, что применение кормовой добавки Абиотоник способствовало увеличению незаменимых аминокислот на 12,14 и на 22,84 соответственно, а заменимых на 8,11 и на 22,51 по отношению к контрольной группеExperimental studies of feed additives Abiotonik and Chiktonik were conducted on the basis of the vivarium of the Department of Epizootology and Organization of Veterinary, and the veterinarysanitary examination of the products of slaughter broiler chickens was carried out at the Department of Parasitology and VeterinarySanitary Expertise of FSBEI HE MGAVMiB MBA named after KI Scriabin and the FSBI of the Federal Research Center of the VIEW RAS, the amino acid composition of quail meat in the State budget institution of the Krasnodar Territory Kropotkinskaya regional veterinary laboratory. Three groups of 10 animals each were formed from chickens at the daily age of the Cobb500 crosscountry, the experimental groups were fed feed additives at the rate of 1 ml / kg of live weight of poultry for up to 50 days of cultivation, and poultry were slaughtered for 56 days. Poultry carcasses after 24 hours of maturation in a refrigerating chamber at a temperature of 4 C were subjected to research according to generally accepted methods: GOST R 519442002. Poultry meat Methods of organoleptic characteristics, temperature and mass GOST 314702012 Poultry meat, offal and semifinished products from poultry meat. Methods of organoleptic and physicochemical studies) Amino acid composition of meat was carried out according to M 04382009. Feed, feed and raw materials for their production. Methods of measuring the mass fraction of amino acids by capillary electrophoresis using the Cappel capillary electrophoresis system. The use of feed additives in a dose of 1 ml / kg of live weight contributed to an increase in live weight of the bird when using Abiotonics by 54.23, and when using Chictonics by 37.70 relative to the control. In all studied samples, the number of VFAs is within the normal range and amounted to 1.39 0.03 mg KOH in 1 experimental group, 1.42 0.04 mg KOH in 2 experimental groups and 1.81 0.06 in the control group. mg KOH, which speaks of the freshness and goodness of meat. The pH of broiler chicken meat was in three groups within the normal range and did not exceed 6.0. According to the results of studies of the amino acid composition of red and white muscle tissue of broiler chickens, it was found that the use of the feed additive Abiotonik contributed to an increase in essential amino acids by 12.14 and by 22.84, and by replaceable ones by 8.11 and by 22.51 relative to the control group.Экспериментальные исследования кормовых добавок Абиотоник и Чиктоник проводили на базе вивария кафедры эпизоотологии и организации ветеринарного дела, а ветеринарносанитарную экспертизу продуктов убоя цыплятбройлеров проводили на кафедре паразитологии и ветеринарносанитарной экспертизы ФГБОУ ВО МГАВМиБ МВА имени К.И. Скрябина и ФГБНУ ФНЦ ВИЭВ РАН, аминокислотный состав мяса перепелов в Государственном бюджетном учреждении Краснодарского края Кропоткинская краевая ветеринарная лаборатория . Из цыплят в суточном возрасте кросса Кобб500 было сформировано три группы по 10 голов в каждой две опытные и контрольная опытным группам выпаивали кормовые добавки из расчета 1 мл/кг живой массы птицы до 50 суток выращивания, убой птицы проводили на 56 сутки. Тушки птицы после 24х часов созревания в холодильной камере при температуре 4 С подвергали исследованиям по общепринятым методикам: ГОСТ Р 519442002. Мясо птицы. Методы органолептических показателей, температуры и массы ГОСТ 314702012. Мясо птицы, субпродукты и полуфабрикаты из мяса птицы. Методы органолептических и физикохимических исследований аминокислотный состав мяса исследовали согласно М 0438 2009. Корма, комбикорма и сырье для их производства. Методика измерений массовой доли аминокислот методом капиллярного электрофореза с использованием системы капиллярного электрофореза Капель. Применение кормовых добавок в дозе 1 мл/кг живой массы способствовало увеличению живой массы птицы при применении Абиотоника на 54,23, а при применении Чиктоника на 37,70 по отношению к контролю. Во всех исследуемых пробах количество ЛЖК находится в пределах нормы и составило: в 1й опытной 1,390,03 мг КОН, во 2й опытной 1,420,04 мг КОН и в контрольной группе 1,810,06 мг КОН, что говорит о свежести и доброкачественности мяса. Значение рН мяса цыплятбройлеров находилось в трех группах в пределах нормы и не превышало 6,0. По результатам проведенных исследований аминокислотного состава красной и белой мышечной ткани цыплятбройлеров было установлено, что применение кормовой добавки Абиотоник способствовало увеличению незаменимых


2018 ◽  
Vol 26 (2) ◽  
pp. 296-304
Author(s):  
Elena A. Laksaeva

An interest in plants of Amelanchier genus is stimulated by the necessity of search for plant sources rich in biologically active substances and possessing the ability to influence different physiological processes in a human organism. The article gives information about places of growth of different species of Amelanchier (Amelanchier Medic) and about the fact that its fruits contain high concentration of free sugars, relatively low level of organic acids, sufficient amounts of various vitamins and provitamins and a complex of mineral substances. Nutritive and biological value of Amelanchier fruits in complex may produce a beneficial effect on different biochemical and physiological processes of normal vital activity of a human organism. The data are given about a positive influence of enteral introduction of polysaccharides isolated from Amelanchier fruits, on different physiological processes that enhance adaptational reserves of an organism of experimental animals. In particular, it was shown that watersoluble polysaccharide complex (WSPC) of Amelanchier fruits activates erythropoiesis increasing the amount of erythrocytes and hemoglobin in blood of experimental animals and raises concentration of iron. WSPC improves physical working capacity and increases the body mass of experimental animals. Addition of watersoluble polysaccharide complex of Amelanchier fruits to blood of a healthy donor increases thermal, osmotic and peroxide resistance of erythrocyte membranes thus protecting cells against damage under action of adverse factors in the experiment. Fruits of plants of Amelanchier genus may be recommended to be used as a food additive or a product in dietary and prophylactic therapy.


Author(s):  
Н.В. БОГОЛЮБОВА ◽  
Р.А. РЫКОВ

Изучен способ нормализации обменных процессов и повышения продуктивности молочных коров при использовании комплекса биологически активных веществ. Эксперимент проведен на коровах голштинской породы (n=12) с продуктивностью за предыдущую лактацию 9000 кг молока. За 20 дней до отела и в течение 65 дней после коровы опытной группы получали комплексную кормовую добавку (ККД), включающую минерал шунгит, холин в «защищенной» форме, пробиотик «Целлобактерин+» и жмых льняной, в количестве 200 г на голову в сутки в смеси с концентратами. Для изучения обменных процессов в организме коров (n=5) в конце опыта отобраны пробы крови и определены основные биохимические показатели. Для оценки продуктивных качеств проводили контрольные дойки. Отмечено повышение в крови коров опытной группы концентрации общего белка на 2,8%, глюкозы — на 26,8% (P≤0,01), фосфолипидов — на 15,2% (P≤0,05), снижение мочевины на 23,6% (P≤0,05), билирубина — на 23,8% (P≤0,01), активности АЛТ на 13,11 (P≤0,05), АСТ — на 14,6% (P≤0,05). Использование ККД позволило снизить и привести в норму активность ферментов: лактатдегидрогеназы (ЛДГ), гаммаглутаминтрансферазы (ГГТ), креатинкиназы. Повышение интенсивности обменных процессов и нормализация показателей, характеризующих работу печени с использованием в питании комплекса биологически активных веществ ферментно-пробиотического, антиоксидантного и липотропно-гепатопротекторного действия, привело к повышению молочной продуктивности. A method of normalizing metabolic processes and increasing the productivity of dairy cows using a complex of biologically active substances has been studied. The experiment was carried out on Holstein cows (n = 12) with a productivity for the previous lactation of 9000 kg of milk. 20 days before calving and within 65 days after the cows of the experimental group received a complex feed supplement (CFS), including the mineral shungite, choline in a "protected" form, the probiotic "Cellobacterin +" and flaxseed cake, in an amount of 200 g per head per day mixed with concentrates. To study metabolic processes in the body of cows (n = 5), at the end of the experiment, blood samples were taken and the main biochemical parameters were determined. To assess the productive qualities, control milking was carried out. An increase in the blood of cows of the experimental group was noted in the concentration of total protein by 2.8%, glucose - by 26.8% (P≤0.01), phospholipids — by 15.2% (P≤0.05), a decrease in urea by 23,6% (P≤0.05), bilirubin - by 23.8% (P≤0.01), ALT activity by 13.11 (P≤0.05), AST — by 14.6% (P≤ 0.05). The use of CFS made it possible to reduce and normalize the activity of enzymes: lactate dehydrogenase (LDH), gamma glutamine transferase (GGT), creatine kinase. An increase in the intensity of metabolic processes and the normalization of indicators characterizing the work of the liver with the use of a complex of biologically active substances of enzymatic-probiotic, antioxidant and lipotropic-hepatoprotective action in the diet led to an increase in milk productivity.


2013 ◽  
Vol 17 (2) ◽  
pp. 53-60
Author(s):  
Tatiana Lisitskaya ◽  
Tatiana Trosheva

Abstract The influence of cultural liquid of bacteria, Bacillus coagulans TI on the growth of several crops are studded. It was established that during the submerged cultivation on glucose-peptone medium these bacteria form gibberellins and amino acids. Pre-sowing treatment of seeds with diluted cultural liquid causes the stimulation of plants growth and improves the quality of plant biomass.


2018 ◽  
Vol 18 (2) ◽  
pp. 19-28
Author(s):  
E V Litasova ◽  
L B Piotrovskiy

Among the various derivatives of fullerenes, compounds containing carboxyl groups (carboxyfullerenes) occupy a prominent place. The reason is that the introduction of carboxyl groups makes it possible to obtain water-soluble derivatives of highly lipophilic fullerenes. The review deals with matters of synthesis and structure of carboxyfullerenes, the influence of the amount and structure of the addends on the solubility of the entire compound, various aspects of the usage of these compounds as independent biologically active substances and carriers for creation of various delivery systems.


2020 ◽  
pp. 66-72
Author(s):  
Viktoriya Pogarskaya ◽  
Raisa Pavlyuk ◽  
Tatyana Kotuyk ◽  
Olga Yurieva ◽  
Nadiya Maksymova

The aim of research is to develop a new method for the production of protein plant nanoadditives from dry chickpea in the form of nanopowders and nanopastes using the processes of steam thermo-mechanical destruction, leading to a high degree of mechanical destruction of biopolymers in separate constituent monomers, without destroying the latter. The new method is based on the use as an innovation of a complex effect on raw materials of steam-thermal treatment in modern steam-thermal devices (at a temperature of +70 °C) and non-enzymatic catalysis, which occurs when using fine grinding. The proposed method makes it possible to more fully reveal the biological potential of plant raw materials and transform hardly soluble, indigestible by the human body components of raw materials (in particular, cellulose, pectin substances, proteins and their nanocomplex and nanoassociates) into components that are easily absorbed by the body. The method makes it possible to more completely remove from the raw materials inactive bound forms of individual monomers of biopolymers, to reduce the molecular weight of biopolymers. At the same time, the efficiency of the resulting product increases significantly when consumed by the human body. New additives from chickpea are fundamentally different from traditional ones in properties and physicochemical state. The developed additives act simultaneously five in one: a source of essential amino acids and other biologically active substances, structure formers, gelling agents, thickeners and yellow dyes. The obtained protein supplements from chickpeas in combination with herbal Nanoadditives (from pumpkin, carrots, lemons, garlic, celery roots, ginger) were used as recipe components in the development of a new generation of confectionery products. The resulting confectionery products differ from the traditional ones in their low sugar and fat content (up to 5 %), high content of complete protein (from 13 to 20 %). In addition, 100 g of new products are able to satisfy the daily requirement for biologically active substances (β-carotene, phenolic compounds) and 0.5 daily requirement for vitamin C. The resulting products are natural, do not contain harmful impurities and exceed the quality of world analogues


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