Addition in diets for milking cows of protected amino acids, for example, methionine and lysine, allows offsetting deficiency of protein and optimizing the use of feed nitrogen by the animals.
Keywords: dairy cattle production, crude protein, protein digestible in rumen, protein indigestible in rumen, nitrogen, rumen, productivity, milk yield, cow, microbial protein, milk, solids, diet, feed, feeding, limiting amino acids, protected lysine and methionine, manure.
For optimum disinfection and improvement of bacterial background in calves’ premises, treatment with Virocid only once a week is sufficient.
Keywords: prevention, disinfection, calves, respiratory diseases of the mixed etiology, cow calf, insemination, lactation, viral diarrhea, infectious rhinotracheitis, paraflu-3, respiratory syncitial infection, bacteria, microflora, feed, laying, immunity, disinfection, bacterial background, «cold fog», aeration, replacement young animals, aerosol, nonionic surfactants, disinfectant, animal, reagent.
Comfortable housing conditions and competent treatment of cow udder before and after milking promotes increase in productivity and minimizes risk of development of mastitis.
Keywords: dairy cattle production, milk, cow, mastitis, mammary gland, udder, hygiene, stall place, stall equipment, herd, animal, manure pass, milking, stress, Yolochka and Parallel milking machines, milking robot, pathogenic microflora, milking hall, milk yield, productivity, antiseptics, antibiotic, lactic and perlactic acid, hydrogen peroxide, nipple, disinfectant, infection, reusable and disposable napkins, bacteria, mamillar duct, microorganisms, chlorhexidine, chlorine dioxide, resistance, iodine, diet, glycerin, allantoin, lanolin, aloe vera, sphincter.
For successful animal breeding, improvement of the existing breeds and early forecasting of the future productivity of dairy cattle, interrelation between milk yields and blood biochemical indicators are studied as they directly influence the process of lactogenesis.
Keywords: dairy cattle production, selection, enzymes, blood serum, correlation, breed, cow, productivity, biochemical blood indicators, lactogenesis, aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase, lactic dehydrogenase, sorbitol dehydrogenase, cholinesterase, amylase, γ-glutamine transferase, genes, DNA, proteins, milk yield, metabolites, daughter cows, father bulls, improvers, lactation, feeding.
During a remote round table, the experts expressed their opinion on condition of animal breeding in dairy cattle production.
Keywords: dairy cattle production, cattle, cow, bull, bred heifer, Association of Holstein Cattle Producers, National Union of the Breeding Organisations, All-Russia Breeding Research Institute (VNIIPlem), breeding cattle production, qualification and certification of breeding animals, electronic identification, milk, milk yield, productivity, genetic material, boniter, pedigree certificate, genome, resistance, milking, RF Ministry of Agriculture.
Competent housing of animals, ¬physiologically necessary physical exercise, timely prevention and treatment of leg diseases are indispensable conditions for supporting health and high productivity of cattle.
Keywords: dairy cattle production, cow, cattle, osteogenesis, hematopoiesis, physical inactivity, locomotor system, metabolism, claw horn, feed, physical exercise, milk yields, leg diseases, dung water, horn formation, productivity, functional clearing of claw horn, animal fixture, claw horn sole, foot baths, disinfection floor-mats, pathogenic microflora, lymph circulation, blood circulation, collagen, orthopedic pathologies.
With data on actual feed composition available, timely adjustment of diet is possible: adding necessary mineral and vitamin additives as well as developing targeted formulations of mixed feeds and premixes to meet animal requirements.
Keywords: dairy cattle production, cow, partially mixed diet, animal, genetic potential, solids, metabolic energy, nutrient value, loose keeping, mixed feed, milking capacity, fleshiness, live weight, population, lactation, full-diet mix, feed table, overfeed, calving, crude protein, dry period.
Principal causes of claw diseases are lack of keratinization-stimulating substances in feed, elevated humidity, aggressive alkaline environment in stalls, damage of horn capsule and soft tissues of extremities, adynamia and insufficient physical exercise, and also large-scale introduction of highly specialised dairy breeds of cattle with weak claw horn.
Keywords: dairy cattle production, cow, heifer, claw horn, feed, keratinization, horn capsule, adynamia, physical exercise, productivity, lameness, culling, lactation, herd rotation, horn growth and wear, destruction, cross-linking reaction (polymerisation), sulphuric bridges, keratine chains, moisture capacity, hydrophilia, amino acids, cystine, ammoniac alkalis, keratopolymer, sulphur-containing vitamins, biotin, thiamin, methyl methionine, calf, young animals, replacement heifer, hydrokeratine, urease, lignin, orthopedic diseases, sole horn, breeding bull, hoof bath, antiseptic substances, veterinary unit, pen, necrobacteriosis, diet, herd.
The article discusses three options of calves’ keeping after birth: in prophylactorium calf house, in individual small house in open areas, or under nursing cows.
Keywords: dairy cattle production, cattle, young animals, calf, prophylactorium period, feeding, feed, diet, individual cage, prophylactorium house, pen, microclimate, nursing bottle, watering, calf rearing, colostrum, milk, dyspepsia, vitamins, protein, fats, carbohydrates, antibodies, manure, small-stalked hay, concentrates, mixed feed, oil cake, oilseed meal, cereals, bran, solids, rumen, volatile fatty acids, starch, breeding stock, permanent bedding, straw, calving, obstetric prophylactic examination, delivery room, grazing period, loose keeping, disinfection, forage reserve, milking period, nursing cow, stall, live weight, udder, weight gain, productivity.
Early diagnosis of subclinical mastitis in cows using a Mas-D-Tec instrument allows revealing the disease at initial stages. Therefore, 60–70% of mastitis cases can be cured by treatment with «Udder Comfort» lotion without using antibiotics.
Keywords: dairy cattle production, cow, population, milking herd, subclinical and clinical mastitis, somatic cells, udder, Mas-D-Tec instrument, «Udder Comfort» lotion, milk rejection, antibiotics, electric conductivity, sodium and chlorine ions.