scholarly journals Застосування неорганічних та органічних сполук Со, Cu та Zn за їх недостатності у дійних корів

2017 ◽  
Vol 19 (78) ◽  
pp. 177-181
Author(s):  
L.G. Slivinska ◽  
V.I. Rusyn ◽  
I.A. Maksymovych ◽  
M.I. Leno ◽  
B.O. Chernushkin ◽  
...  
Keyword(s):  
Trace Elements ◽  
Body Weight ◽  
Dairy Cows ◽  
Organic Compounds ◽  
Total Protein ◽  
Biochemical Parameters ◽  
Total Calcium ◽  
Ratio Of Components ◽  
Experimental Group ◽  
Cu And Zn

The results of research of certain biochemical parameters of blood in dairy cows for the prevention of insufficiency of Co, Cu and Zn by inorganic and organic compounds of trace elements are presented. The purpose of the work – to investigate the state of individual biochemical parameters of blood in dairy cows when using inorganic and organic compounds Co, Cu and Zn to prevent their insufficiency. The research material was the blood serum of experimental animals, which determined the content of total protein and the percentage of albumin, total calcium content, inorganic phosphorus, aspartateaminotransferase (AST) activity, alanineaminotransferase (ALT), alkaline phosphatase (AP).For research on dairy cows of the first experimental group, together with the feeds of the main diet, a mixture of trace elements sulphates was fed in the following ratio of components (mg/100 kg body weight): CuSO4 – 50, CoSO4 – 5, ZnSO4 – 120. Animals of the second experimental group fed a mixture of methionates and lysinates of trace elements in the following ratio of components (mg/ 100 kg of body weight): CuMet – 15, CuLis – 15, CoMet – 1, CoLis – 1, ZnMet – 35, ZnLis – 35. Feeding the mixture of compounds of fragile microelements was carried out by mixing them with mixed fodder, once a day, for 60 days. The evaluation of the research results was carried out at the beginning and at the end of the experiment.On the background of the deficit of Сobalt, Сuprum and Zinc, clinically diseased animals have hypoproteinemia, hypoalbuminemia, hypocalcemia, increased activity of AST, ALT and AP, indicating a metabolic abnormality in cows and development of microelementosis. It was established that the use of chelated cheeses in the form of methionates and lysinates of scarce microelements had a better therapeutic effect compared to inorganic compounds. The result of the application of chelate compounds of trace elements was a possible increase in the content of total protein in the blood serum, fractions of albumins, total calcium, decrease in the activity of AST, ALT and AP. 

scholarly journals Effect of feeding chelates of trace elements on morphological and biochemical blood indicators of cows

2017 ◽  
Vol 19 (74) ◽  
pp. 119-122
Author(s):  
S. V. Kulibaba ◽  
M. M. Dolgaya ◽  
N. S. Emelyanova ◽  
G. O. Goncharenko
Keyword(s):  
Trace Elements ◽  
Total Protein ◽  
Blood Cells ◽  
Inorganic Phosphorus ◽  
Total Calcium ◽  
Chelate Complexes ◽  
Animal Blood ◽  
Significant Difference ◽  
Experimental Group ◽  
Effect Of Feeding

In the article was discusses the questions about the effect of feeding chelate complexes of trace elements of copper (Cu), zinc (Zn), manganese (Mn) on morphological and biochemical blood indicators of cows of Ukrainian black mottled dairy breed on the second month of lactation. For the experiment, 40 cows were selected and formed four groups: one control and three experimental. The cows in the control group fed a premix of sulfate salts of Cu, Zn and Mn in doses that are 100% covered their lack in a forage. Experimental animals from I, II and III groups were fed premixes with chelate complexes of Cu, Zn and Mn, which offset the deficiency of trace elements in the feed ration for 100, 50 and 25% (calculated on pure element), respectively. In animal blood examined the number of red blood cells, white blood cells, hemoglobin, phagocytic activity of neutrophils, and in serum – total protein, albumin, globulin, glucose, total calcium, inorganic phosphorus, carotene, creatinine, urea, cholesterol, activity of AST, ALT and alkaline phosphatase. As a result studies, have shown that blood indicators of the animals were within physiological fluctuations. Found that in the serum of animals of III experimental group the contents of total protein was lowered by 4.1% (P < 0.05) than in the first, and by 3.6% (P < 0.1) relative to the second group. It was determined that the concentration of albumin and total calcium in serum of II experimental group of cows was higher by 4.6% and by 6.0% (P < 0.1), respectively, relative to the third group. Content of inorganic phosphorus in the blood serum of animals of II group was higher at trends over the indicator in the serum of animals of the control and first experimental groups by 8.1% and by 6.9%, respectively. According to other indicators of animals blood does not have significant difference.

The effect of ethanol on some hematological parameters of the australian red claw crayfish (Cherax quadricarinatus)

2022 ◽  
pp. 85-91
Author(s):  
D. Skafar ◽  
D. Shumeyko
Keyword(s):  
Body Weight ◽  
Total Protein ◽  
Hematological Parameters ◽  
Group Versus ◽  
Control Group ◽  
Total Protein Content ◽  
Cherax Quadricarinatus ◽  
Total Hemocyte Count ◽  
Red Claw Crayfish ◽  
Experimental Group

Purpose: to study the effect of ethanol on the parameters of THC, the percentage of granulocytes and total protein in the hemolymph of the Red claw crayfish (Cherax quadricarinatus).Materials and methods. The object of this experiment was 26 males of the Australian red-clawed crayfish (Cherax quadricarinatus) weighing from 23 to 83 g. The individuals were evenly divided into two experimental groups - with an injection of ethanol and a control group without an injection of 13 crayfish for each group. The injection dose was 2515 mg per 100 g of body weight. A day after the introduction of ethanol, hemolymph was taken with a syringe from the ventral sinus, the syringe was pre-washed with a 4% EDTA-Na2 solution. Three parameters were determined: the total hemocyte count (THC), percent granulocytes and percent total protein content. Counting of hemocytes and determination of granulocytes were performed in a Goryaev chamber under a light microscope. The total protein was determined by the refractometric method.Results. Differences in THC and total protein between the groups were statistically unreliable (p>0,05). THC in the experimental group is 36% more than in the control group. The total protein after the introduction of ethanol actually increased by 0,7%, and relatively by 14%. There were statistically different indicators of the proportion of granulocytes (p<0,05) - the average value of 33,1% in the experimental group versus 24,5% in the control group. A reliable (p<0,05) strong feedback was revealed between the total protein and the mass of individuals in both experimental groups, while in the experimental group there is a visible shift in the values of dependent hemolymph indicators towards an increase in smaller individuals.Conclusion. A single injection of ethyl alcohol with a dosage of 2515 mg per 100 g of body weight into the hemolymph of C. quadricarinatus does not cause significant changes in the THC and total protein after 24 hours. At the same time, the proportion of granulocytes actually increases by 9%, relative to 37%. This may indicate that granulocytes are involved in the formation of cancer defense mechanisms when exposed to toxic substances. The effect of different dosages of ethanol injections and the duration of its effect on hematological parameters requires additional consideration. It is necessary to investigate its effect on other indicators, such as the pH and buffer capacity of the hemolymph, the concentration of hemocyanin, glucose, lactates and calcium.

scholarly journals The effect of the Ketostop-EL feed supplement on the clinical and metabolic status of lactating cows

2021 ◽  
Vol 36 ◽  
pp. 06033
Author(s):  
N.B. Nikulina ◽  
E.V. Baidak
Keyword(s):  
Dairy Cows ◽  
Milk Yield ◽  
Total Protein ◽  
Chemical Properties ◽  
The Body ◽  
Metabolic Status ◽  
Total Calcium ◽  
Feed Supplement ◽  
Daily Milk Yield ◽  
Daily Milk

A study was conducted on dairy cows aged 3-6 lactation, which were additionally fed with the Ketostop-El supplement at the rate of 300 g per head for 4 weeks after calving. The use of the feed supplement for 14 days led to a decrease in the number of monocytes, total protein, glucose, creatinine, total calcium and the activity of ALT and AST compared to their level before the use of Ketostop-El. Changes in the physical and chemical properties of urine and increase in the average daily milk yield were noted. The use of the supplement for 28 days contributed to a decrease in hematocrit, the sorption capacity of red blood cells, total protein, glucose, bilirubin, creatinine, total calcium, reserve alkalinity, ALT and AST activity and an increase in the number of basophils, eosinophils, and the concentration of inorganic phosphorus compared to the initial data. At the same time, a decrease in the level of protein and ketones in the urine was observed. An increase in the average daily milk yield and the mass fraction of fat in milk was also recorded. The feed supplement "Ketostop-El" has a positive effect on the body of dairy cows, as evidenced by the normalization of the clinical and metabolic status, as well as an increase in the dairy productivity of animals.

scholarly journals The effects of different anticoagulants on biochemical parameters in blood of dairy cows

2015 ◽  
Vol 69 (1-2) ◽  
pp. 13-20
Author(s):  
Branislava Belic ◽  
Marko Cincovic ◽  
Maja Dosenovic ◽  
Dragica Stojanovic ◽  
Zorana Kovacevic
Keyword(s):  
Alkaline Phosphatase ◽  
Dairy Cows ◽  
Alkaline Phosphatase Activity ◽  
Total Protein ◽  
Biochemical Parameters ◽  
Biochemical Analysis ◽  
Blood Parameters ◽  
Albumin Level ◽  
Blood Samples ◽  
Holstein Friesian

Routine analysis of blood parameters requires high precision. Therefore a significant number of methods and recommendations has been developed to ensure the obtaining of precise results. The aim of this study was to investigate whether the type of anticoagulant affects the values of biochemical parameters in the blood of dairy cows in relation to the values obtained from the serum. The study was carried out on 20 healthy cows of Holstein- Friesian breed in the second month of lactation. The blood was taken by venipuncture from v.coccigea. There were used five types of vacutainers as follows: for the serum separation, with heparin, EDTA, citrate, and fluoride. Samples from each cow were taken in all five types of vacutainers respectively. There was determined the concentration of: albumin, total protein, glucose, Ca, P, BHB, NEFA, urea, cholesterol, triglycerides, ALT, AST, AP, GGT and bilirubin. The results of the analysis of samples that contained anticoagulants were compared statistically with analysis in serum that was considered to be the control one. It was also calculated the percentage of deviation in average values of concentration of metabolites obtained from samples with different anticoagulants in regard to the serum value. The results of the investigation show that anticoagulants influence the values of biochemical parameters in the blood of cows. In the samples where heparin was used as anticoagulant there was found higher albumin level (deviation 4.1%) as well as total protein (1.4%), but lower value of alkaline phosphatase activity relative to the serum (-33%). In the samples in which EDTA was used there were significantly lower levels of total protein (-5.8%), Ca (-49.6%), P (-17.7%), AP (-32%) and higher value AST (10.6%) compared to serum. In the samples where citrate or fluoride were used as anticoagulants there were found lower values of total protein, albumin, glucose (only citrate), Ca, P, BHB, NEFA, urea (only citrate), cholesterol, AP and GGT (only fluoride) and lower bilirubin when using citrate or higher when using fluoride, in comparison to the serum. Deviations of biochemical parameters measured from blood samples that were in citrate or fluoride were as follows: total protein (-5.3%, -5.2%), albumin (-7%, -5.7%), glucose (only citrate -6.2%), Ca (-55%, -82%), P (-29%, -24%), BHB (-53%, -80%), NEFA (-62.1%, -79 , 4%), urea (only citrate, -25.5%), cholesterol (-28.6%, -28.4%), AP (-38%, -32%), and GGT (only -17 fluoride, 8%) and higher bilirubin (-22.8%, 64.4%). For routine clinical biochemical analysis of blood of cows it is the most reliable to use the samples with heparin as an anticoagulant, because the use of other anticoagulants gives large variations in the values of biochemical parameters in relation to serum.

scholarly journals Serum proteinogram and biochemistry of Holstein cows in the peripartum period

2019 ◽  
Vol 39 (5) ◽  
pp. 342-347
Author(s):  
Thaís G. Rocha ◽  
Camila Bortoletto ◽  
Daniela G. Silva ◽  
Kalina M.M.G. Simplício ◽  
Luiz F. Zafalon ◽  
...  
Keyword(s):  
Alkaline Phosphatase ◽  
Dairy Cows ◽  
Total Protein ◽  
Repeated Measures ◽  
Transition Period ◽  
Serum Levels ◽  
Inorganic Phosphorus ◽  
Holstein Cows ◽  
Total Calcium ◽  
Peripartum Period

ABSTRACT: In face of the few reports found in national literature analyzing the potential influence of parturition number in serum proteinogram and biochemical profile in the peripartum period of high yielding dairy cows, the aim of the present study was to comparatively evaluate the dynamics of these serum constituents’ concentrations in blood samples obtained from primiparous and multiparous Holstein cows, 60 and 30 days prepartum and in the day of parturition. Data were analyzed by repeated measures variance analysis (ANOVA) and differences between groups and moments were analyzed by Tukey’s test. Results were considered significant when P<0.05. Parity influenced levels of total protein, albumin, globulins, magnesium, cholesterol, which were higher in multiparous cows, as well as concentrations of ceruloplasmin, total calcium, chloride and alkaline phosphatase activity, which were higher in primiparous cows. Parturition influenced serum concentrations of ceruloplasmin (+58%), transferrin (-25%), haptoglobin (+33%), total protein (-17%), globulins (-25%), immunoglobulin A (-43%), immunoglobulin G (-24%), total calcium (-12%), inorganic phosphorus (-10%), chloride (+5%), sodium (+4%), cholesterol (-23%), triglycerides (-38.6%), as well as activities of aspartate aminotransferase (+14%) and alkaline phosphatase (+28%). A decrease in serum levels of total calcium, inorganic phosphorus, cholesterol and triglycerides was more pronounced in multiparous than in primiparous cows. These results demonstrate that the interpretation of proteinogram and serum constituents should take into consideration lactation number and the moment of parturition as relevant factors in high yielding dairy cows in the transition period.

scholarly journals Influence of salicylate administration on weight gain and serum biochemical parameters in broiler chickens

2010 ◽  
Vol 66 (10) ◽  
pp. 675-679 ◽  
Author(s):  
Poźniak B. ◽  
Yuan H. ◽  
J. Yi ◽  
Guo C. ◽  
Deng S. ◽  
...  
Keyword(s):  
Body Weight ◽  
Total Protein ◽  
Biochemical Parameters ◽  
Broiler Chickens ◽  
Clinical Manifestations ◽  
Weight Ratio ◽  
Serum Biochemical Parameters ◽  
Serum Total Protein ◽  
Weight Gains ◽  
Serum Biochemical

The aim of the study was to investigate the effects of different doses of acetylsalicylic acid (ASA) and sodium salicylate (SS) administration on weight gains and serum biochemical parameters in broiler chickens. This study was performed to investigate the safety of ASA and SS in chickens in conditions of moderate overdose. Seventy five broiler chickens (Sanhuangji breed) were divided into control and experimental groups. The chickens were administered orally with ASA or SS in the following daily doses: 50, 100 and 200 mg/kg for 20 days. In the course of the experiment weight gains were recorded. On day 14 and day 20 the chickens were sampled for blood biochemical analysis. Investigated parameters included serum total protein, albumin, uric acid, creatinine, potassium, sodium and calcium contents as well as alanine transaminase activity. After the last samplings the chickens were dissected and liver and kidney to body weight ratios were recorded. It was demonstrated that SS at a dose of 200 mg/kg increased serum total protein level. ASA increased serum proteins at a dose of 100 mg/kg but not at a higher dose. At the dose of 200 mg/kg ASA increased the kidney to body weight ratio. In all salicylate treated groups the liver weights were lower as compared to the control. No clinical manifestations of intolerance were observed. It is assumed that chickens tolerate ASA and SS well, even in doses producing distinct side effects in several mammalian species.

Influence of the Amyrasol R-Z mineral lick briquette on biochemical parameters of blood in dairy cowsInfluence of the Amyrasol R-Z mineral lick briquette on biochemical parameters of blood in dairy cow

2020 ◽  
pp. 13-14
Author(s):  
Ayub Yu. Aliev ◽  
◽  
Karine A. Karpushchenko ◽  
Abdulgamid A. Aliev ◽  
Keyword(s):  
Dairy Cows ◽  
Milk Fat ◽  
Biochemical Parameters ◽  
Fat Content ◽  
Control Group ◽  
Milk Productivity ◽  
Basic Diet ◽  
The Republic ◽  
Experimental Group ◽  
Mineral Lick

The data obtained as a result of the use of a mineral lick briquette Amirasol R-Z in the diets of dairy cows are analyzed in the article. Authors studied the influence of the mineral lick briquette Amirasol R-Z on the biochemical parameters and milk productivity of dairy cows. The experiments were carried out on dairy cows of the red steppe breed in the conditions of the plain zone of the Republic of Dagestan. Two groups of dairy cows were formed (10 heads in each). According to the scheme of the experiment, the control group received a basic diet, the experimental group received the basic diet and the mineral lick briquette Amirasol R-Z. Each cow of the experimental group was given individually one lick briquette in a dose of 4 kg during 90 days. Researches and data processing were carried out according to generally accepted methods. Blood was taken from the experimental animals from the jugular vein for laboratory studies at the end of the experiment. The milk productivity and fat content of milk were taken into account by carrying out monthly control milk yields. At the same time, the positive effect of a lick briquette on the biochemical parameters of blood has been proven: reserve alkalinity, glucose, macro- and microelements, the activity of the copper-containing enzyme ceruloplasmin and milk productivity. A significant increase in the blood of glucose concentration by 12.93% in the cows of the experimental group, the level of reserve alkalinity by 17.66%, the concentration of macroelements and microelements, milk productivity by 5.7%, milk fat by 2.77% compared with the control group. The use of the mineral lick briquette Amirasol R-Z in the diets of dairy cows helps to prevent macro- and microelementoses, increase milk productivity, milk fat content, nonspecific immunity and obtain of healthy calves.

scholarly journals State of protein and mineral exchange in broiler-chickens for the use of Zinc and Mangane chelates

2019 ◽  
pp. 85-94
Author(s):  
V. Sakara ◽  
A. Melnyk ◽  
F. Markhenkov
Keyword(s):  
Total Protein ◽  
Broiler Chickens ◽  
Zinc Content ◽  
Calcium Content ◽  
Inorganic Phosphorus ◽  
The Body ◽  
Control Group ◽  
Total Protein Content ◽  
Total Calcium ◽  
Experimental Group

The results of the application of a complex of Zinc and Manganese chelates to protein, macro- and micro-mineral exchanges in the body of broiler chickens of the Cobb 500 cross-breed are presented. The administration of Zn and Mn chelates in a dose of 0,2 ml/l for chicken broilers of 23 days of age (1st experimental group) during 14 days influenced the increase in the total protein content to 35,3±0,8 g/l, which is 8 % higher compared with the control – 32,5±0,7 g/l (p<0,01 ) The concentration of total Calcium in serum of broiler chickens 37-day-old (end of trial) was higher in the first experimental group by 7,3 % (2,05±0,06 mmol/l) compared to control – 1,9±0,03 mmol/l. In the second group, where chelates were administered in a dose of 0,4 ml/l of water, the Calcium content was 2,0±0,02 mmol/l, which is 5 % more than the control group. The two-week application of Zn and Mn chelates also led to an increase in the level of inorganic Phosphorus in the serum of the first group to 2,6±0,12 mmol/l (+ 11,5 %) compared with the control group. After administration of chelates Zn and Mn at doses of 0,2 ml/l water, the Zinc content was higher by 4,3% (23,5±0,2 μmol/l) compared to control – 22,5±0,34 μmol/l (p<0,01). In the second group, where the dose of chelates was 0,4 ml/l, the concentration of Zinc was 23,6±0,16 μmol/l, which is more than 4,6 % for control (p<0,01). At the end of the study, the content of Manganese in serum of broiler chickens in the first group was 1,9±0,07 μmol/l (p<0,05), which is 10,4% higher compared with the control – 1,7±0,06 μmol/l (3rd sampling). The level of this element in the second group was 2,0±0,08 μmol/l (p<0,01), which is higher by 16,7 % relative to the control. At the end of the experiment, the coupon concentration in the first and second experimental groups was 12,6 and 9,3 % higher, compared with control, 7,0±0,37 μmol/l. In turn, the serum Ferrum content of the first group was greater by 9,3 % (19,3±0,69 μmol/l), and the second by 6,7 % (18,8±0,47 μmol/l) compared to the bird of the control group. Key words: chicken broilers, chelates, Zinc, Manganese, Cuprom, Ferrum, metabolism.

scholarly journals Protein-synthesizing function and functional state of the liver of dogs at experimental toxocariasis

2020 ◽  
Vol 22 (98) ◽  
pp. 132-137
Author(s):  
W. S. Said ◽  
V. V. Stybel ◽  
B. V. Gutyj ◽  
O. B. Pryima ◽  
I. Y. Mazur
Keyword(s):  
Body Weight ◽  
Functional State ◽  
Total Protein ◽  
Aspartate Aminotransferase ◽  
Alanine Aminotransferase ◽  
Experimental Studies ◽  
Control Group ◽  
Activity Of Enzymes ◽  
Experimental Group

The aim of the study was to investigate the effect of toxocariasis invasion on protein-synthesizing function and functional state of the liver of dogs. For experimental studies, 12 dogs aged from two to four months were used and two groups of six animals were formed in each: control and experimental. Puppies of the experimental group were experimentally infected with the pathogen toxocariasis at a dose of 5,000 invasive eggs of T. canis per kg of body weight. The control puppies were clinically healthy. Protein-synthesizing function of the liver of dogs in experimental toxocariasis was studied by the level of total protein and its fractions. It was found that on the 25th day of the experiment the level of total protein in the blood of the experimental group of dogs was 56.9 ± 1.47 g/l, while in the control group – 63.8 ± 2.92 g/l. The lowest level of the studied indicator was on the 30th day of the experiment in the blood of the experimental group of dogs, where it decreased by 9.6 %. The results of a study of protein fractions in the blood of dogs infested with toxocara showed that the percentage of albumin is likely to decrease. However, in the blood of infected dogs in this period of research there was a probable increase in globulin levels. The study of the effect of toxocariasis invasion on the activity of enzymes in blood serum is a test for the morphological and functional state of tissues and organs. Based on the studies, it was found that with the development of toxocariasis invasion in dogs there is an increase in alanine aminotransferase in their serum. On the 25th and 30th day of the experiment, the activity of the enzyme in the serum of infected dogs was the highest, where compared with the control group of dogs, the activity of ALT increased by 51.2 and 59.1 %, respectively. Similar changes in activity were observed in the determination of aspartate aminotransferase, where, respectively, on the 15th, 20th and 25th day of the experiment, the activity of AST in the serum of infected dogs increased by 19.3, 27.5 and 39.1 %.

scholarly journals The effect of herbal phytoextract on metabolic parameters of sows and piglets

2021 ◽  
Vol 22 (3) ◽  
pp. 428-435
Author(s):  
A. A. Ivanovsky ◽  
N. A. Latushkina ◽  
E. Yu. Timkina
Keyword(s):  
Total Protein ◽  
Biochemical Parameters ◽  
Control Group ◽  
Total Protein Content ◽  
Herbal Extracts ◽  
Control Groups ◽  
Normal Range ◽  
Experimental Group ◽  
Experimental Pigs

The purpose of the research was to study the effect of a phytocomplex containing herbal extracts of R. carthamoides, S. coronata, F. ulmaria on blood biochemistry of milking sows, the development and viability of piglets born by the time of weaning. For the experiment, the animals were divided into an experimental (Phytoadditive) and a control (SPK-2 compound feed) groups, 10 animals each. Phytoadditive in dry form was introduced into the diet of pigs of the experimental group during the sucking period (30 days) daily, once per head per day - 10 grams (individually). Before the beginning and at the end of the experiment, the blood of sows was examined for biochemical parameters. The multiplicity, the quality of the piglets born, the weight of the nest and one pig after birth and before weaning, as well as viability were determined. As the result, it was found that the concentration of the investigated extractives in the Phytoadditive was 13.5 g/kg, of which 10.5 g were ecdysteroids and 3.0 g of flavonoid rutin. Significant changes in the total protein content in the blood compared with the beginning of the experiment were noted in experimental pigs from 60.2±0.5 to 67.3±0.2 g/l (P <0.05) and in the control group from 61.0±0.2 to 66.1±0.1 g/l (P <0.05), the "Ca" content from 2.1±0.01 to 2.7±0.02 mmol/l (P <0.05) in the experimental group and from 2.0±0.01 to 2.5±0.02 mmol/l (P <0.05) in the control groups, while being within the normal range. The amount of albumin significantly increased only in the experimental group from 40.8±1.2 to 49.3±2.8 g/l (P <0.05), in the control from 42.2±2.1 to 46.0±1.5 g/l (P> 0.05). The number of piglets with low viability in the experimental group was 2 times less than in the control group. The viability of piglets in the experimental group by the time of weaning was 92.6 %, in the control ‒ 83.2 %.

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