Investigation of the influence of live weight and age of heifers at the time of first fruitful insemination on subsequent productivity have been carried out in 12 breeding farms of Russia that breed Holsteinized, Black-and-White and Kholmogory cattle.
Keywords: dairy cattle production, Holsteinized cattle, lactation, seasonality of calvings, organisation of feeding, live weight, age, first-calf heifers, full-grown cows, insemination, milk productivity, milk yields, production groups, milking.
Grain haylage from a mix of grain haylage crops is very nourishing feed, characterised by good feed characteristics and high productive effect
Keywords: grain haylage, protein, digestibility, feed, cow, productivity, grain fraction, fibre, grain haylage crops, young animals, digestibility index, production process, feed preparation, diet, triticale, preservatives, peas, mix, lactic acid, organic acid, high-stalk crop, wheat, crops, combine, feed characteristics, productive effect
Housing cattle in different types of cowsheds has both pros and contras. Results of our research will help to make an optimum decision for choosing animal premises.
Keywords: livestock production, farm, cowshed, light-weight structure, thermal balance, productivity, disease rate, feed, diet, housing conditions, profitability, standard design, feeding, air temperature, air exchange, milk yields, milk, microbial count, somatic cells, conception rate, service period, calf yield, power consumption of manufacture, comfort, discomfort.
Economically grounded planning of slaughter weight allows improvement of pig production profitability.
Keywords: pig production, sow, hog, profitability, fattening, slaughter weight, feed, feeding, diet, growth intensity, feed conversion, weight gain, slaughter grades, production cost, meat, fat.
Russian pig production farms successfully tested a method of blood drawing from superficial femoral vein of male pigs during seating on phantom that was developed in France.
Keywords: blood drawing, live weight, stress, sperm production, auricular vein, seating on phantom, sperm collection, hip, superficial vein, blood sampling, aggression, ejaculation, veterinary medicine.
Nursing of piglets – especially in first ten days after farrowing — is the most difficult period in productive life of sows. Good care of a lactating sow will assure receiving high quality offspring.
Keywords: pig farmers, sow, piglet, weanlings, lactation, hypolactation, agalactia, mammary glands, mastitis, farrowing, milk, colostrum, feeding, barrenness, diet, protein, lysine, suckling piglets, suckling period, fleshing.
In production of commercial pork, livestock producers and meat processors should consider all factors and persistently use recommendations of experts to improve quality of the final products.
Keywords: meat, pork, transportation, slaughter, treatment, processing, colour, myoglobin, oxymyoglobin, metmyoglobin, preslaughter stress, рН, feed, diet, syndrome DFD, PSE, RSE, hardness, marbling, tenderness, succulence, meat processing.
The article discusses the reasons of occurrence of impairments in reproductive function of stud boars and methods of their prevention.
Keywords: stud boar, reproductive function, impotence, spermatogenesis, fertility, ejaculate, estrus, seating on phantom, heterospermic insemination, impotence.
Non-observance of requirements to transportation of day-old chicks can affect the results of subsequent poultry growing. The article provides recommendations regarding safe transportation of chicks.
Keywords: poultry production, chicks, day-old chicks, incubatory eggs, incubation, hatching, transportation, thermoregulation, thermal stress, temperature mode, air temperature, air humidity, air exchange, immunity, infectious diseases, residual yolk, hatchability, safety, productivity, live weight, live weight gain, special transport, boxes, disinfection.
The cage technology of broiler growing allows receiving 2–3 times more products from unit area of hen house and providing more comfortable conditions for chicks with smaller involvement of manpower.
Keywords: chicken, broiler, cage, cage and floor housing, rate of stocking, meat yield, profitability, bedding material, cage battery, integrated poultry farm.
High uniformity of broiler live weight is necessary for efficient production and processing of poultry meat products. Population uniformity can be improved by creation of equilibrium groups.
Keywords: poultry production, egg quality, herd uniformity, chicken sorting, equilibrium communities, profitability.
Relationship between live weight, housing in a particular tier of the cage battery and productive qualities of poultry was established.
Keywords: egg, poultry, poultry production, genetic material, selection program, egg laying capacity, egg laying, productive period, layers, live weight, egg weight, yolk, protein, housing tier, cage battery.
Housing of calves in individual and group pens makes it possible to monitor young animals continuously, to prevent development of diseases timely. This technology allows growing healthy population, reduction of expenses and cutting production costs.
Keywords: calves, opportunistic microbes, animals, newborn calves, dry bedding, bull calf, cow calf, feed, milk productivity, hay, mixed feed, raising method.
Experts believe that accelerated reproduction of animals may be addressed by transplantation of embryos. Experiments made in Belarus shown that this method of receiving highly productive breeding cattle is promising.
Keywords: transplantation, embryo, fetus, donor cow, reproduction, genetic potential, genotype, stud bull, selection, ovulation, polyovulation, fertilization, genetic copy, clone, in vitro, gene engineering, biotechnology, transplant, family tree, lactation, persistent yellow body, luteic cyst, ovary, gynecologist veterinarian.
According to the research data, at the farms with cow productivity 8-9 thousand kg milk for 305 days, duration of lactation should not exceed 350-360 days.
Keywords: first-calf heifer, lactation, cow, productivity, milk, dairy fat, dairy protein, service period, milk yield, milkiness factor.