Assessment of the effectiveness of treatment and recovery of reproductive functions of cows with fatty liver decease using a drug based on a healthy liver hydrolysate (the enzyme structures of the protein after acid treatment and centrifugation remain in the sediment of the tissue substrate, and their released amino acids become constituent components of the over-sediment solution of the hydrolysate). Two groups of animals of 15 heads each were formed: first-calf heifers entered the first group on the first day after calving, liver pathology was indicated by an increase in its borders during percussion, and animals with clinical signs of deep fatty liver disease were included in the second group a month after calving. The dose was 40 ml daily (20 ml intramuscularly and 20 ml subcutaneously), the course of treatment was 5 days. After the 1st stage, the remaining 25 cows of both groups were considered as one experimental group of the 2nd stage, which was periodically monitored until the next calving and insemination; the control was 25 animals not subjected to hepatoprotective therapy. Cows that underwent even one treatment procedure were better adapted to the newborn period and subsequent insemination. They have faster involution of the uterus and the resumption of the sexual cycle (P <0.001), higher fertility, and a greater number of healthy calves.
The study was conducted to identify the early use of young animals (gobies and heifers) in cattle for breeding purposes. The condition under which the research was carried out was intensive and traditional rearing of young cattle. In the experimental groups, feeding was intense, and in the control groups – according to the accepted technology in the farm. Young growth was carried out until the age of 15 months. Under such different growing conditions, we have established the features of the formation of reproductive organs in gobies and heifers. The good development of the genitals of the heifers of the experimental group, and especially the ovaries, made it possible to carry out their fruitful insemination in the period from 13 to 14 months of age. For this, two bulls were selected from the experimental group at the age of 12-13 months, which, by manual mating, inseminated 20 heifers for a month. During a rectal examination, they turned out to be all pregnant and in due time, without complications, became hotels, gave normal viable offspring. Calving calves aged 22-23 months during 1 lactation they were in no way inferior in milk production to heifers inseminated at the age of 24-28 months and calving at 33-37 months.
Studies have established the effect of ekobentokorm (TU 9283-199-10514645-13-2013) on the metabolism of cows and the natural resistance of young black-and-white breed. The physiological state of cows was assessed by morphological and biochemical studies of blood, in which changes in the body’s metabolic processes were tracked in dynamics according to the following indicators: the number of red blood cells and hemoglobin level, total protein and protein fractions, glucose, urea, aminotransferases (AST, ALT), total calcium and inorganic phosphorus, trace elements (Mg, Zn, Fe, Cu) and carotene. The indicators characterizing the natural resistance of young animals were studied: red blood cells, white blood cells, hemoglobin, color index, total protein and protein fractions, phagocytic activity of neutrophil granulocytes, bactericidal and lysozyme activity of blood serum, the content and concentration of T-and B-lymphocytes, the level of circulating immune complexes (CIC). As a result of the conducted research, it was found that ekobentokorm has high biological activity, improves morphological and biochemical parameters of cows blood, and also increases milk productivity. It has a pronounced stimulating effect on the immunocompetent systems of the body of young animals, as a result of which the level of non-specific protection of the animal increases.
The aim of the study was to study the effect of diets using the potentially probiotic drug Bacillus amyloliquefaciens KB54 as part of compound feed (the rate of administration is 0.1% of the total diet, the content of viable spores in the final product is 106 CFU/g) in the diets of laying hens of the Dekalb cross. In the course of the study, it was established that the viability indicators of laying hens were at a high level and the safety of livestock in the studied groups during the period of the experiment was 100%; egg production in the experimental group was 96.7%, which is 2.3% more than in the control group of laying hens; chickens in the experimental group exceeded the control in growth intensity, which affected an increase in live weight by 12.5%, or 188.5 grams, which is 1.7 percentage points or 25.2 grams more than in the control group; feed costs for 10 eggs and 1 kg of egg mass in the experimental group were 1.43 and 2.36 kg, respectively, which is 11.7 and 14.5% lower than the control values. In this regard, we recommend using the probiotic preparation Bacillus amyloliquefaciens KB54 in the diets of laying hens, introduced into the compound feed in the amount of 0.1% of the total diet with the content of viable spores in the final product 106 CFU/g.
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