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.
To improve milk productivity and reproductive qualities of thoroughbred and mongrel high-yield cows, it is reasonable to support their fleshiness by the time of calving at a level of 3.5–3.75 points.
Keywords: dairy cattle production, cow, bred heifer, first-calf heifer, milk, fat, protein, service period, productivity, calving, black-and-white breed, Dutch breed, Bestuzhev breed, Holsteinized cattle, reproductive function, reproductive qualities, insemination, fertilisation, lactation, condition, feed, diet, protein, carbohydrates, fat liver syndrome, ketosis, acidosis, anestrus, estral cycle, indifference period, embryos, culling, increasing milk yield, milk yield.
Interview with Elena Koldaeva, Director of Noncommercial Partnership «National Union of Breeding Organisations».
Keywords: animal breeding, livestock breeding, milk, cattle, herd, population, dairy cattle production, genetic potential, productivity, lactation, calf, bull calf, heifer calf, heifer, bull, cow, Holsteinized cattle; Holstein, Yaroslavl, Kostroma, Jersy, Ayrshire breeds, milk fat, milk protein, feed, animal identification, milking capacity, milk yield, genetic variety, native breeds, productive longevity, selection, breeding value index, embryos, ovicells, gene engineering, Federal Law «On livestock breeding» No 123-FZ.
Errors in feeding highly productive cows frequently result not only in milk volume and quality drop, but also animal health deterioration.
Keywords: dairy cattle production, milk, animal, lactation, pregnancy, bacterial count, genetic potential, feeding management, feed, diet, milk yield, reproductive functions, palatability, digestibility, mixed feed, metabolic energy, protein, fibre, hay, silo, haylage, solids, urea, drying, feed reserve, mastitis, ketosis, acidosis, feed mix, microclimate, mycotoxins, feeding front, first-calf heifer, cow, heifer, calf, service period, cud, nutritious and biologically active substances, vitamins, rumen, cicatricial digestion, easily digested carbohydrates, feed mix sorting, feed conversion, thermal stress, dry period, increasing milk yield, deoxidants.