Semex offers milk producers the Immunity+ technology that guarantees herd health improvement and increases profit on investment.
Keywords: dairy cattle production, bull, cow, calf, Immunity+ technology, Genomax bulls (high genomic bulls), Immunity+ bulls, genetics, genomic selection, genomic assessment, herd, population, pneumonia, diarrhea, metritis, placenta detention, mastitis, ketosis, insemination, immune response, milk, culling, vaccine, antibodies, colostrum, productivity, heritability, Holstein breed, bulls’ semen, bulls’ daughters, top bull, milk yield, somatic cells, GTPI index, bull rating, vaccination, heifer, company Semex.
The animal breeding staff of the Moskovskoe OJSC has been involved in assessment and improvement of the exterior of dairy cattle in Moscow Region for two decades, and by now they have achieved considerable results.
Keywords: dairy cattle production, animal breeding, selection, breeding farm, cattle, dairy cattle, cows, first-calf heifers, stud bulls, linear assessment of the type of constitution, 100-point system of exterior assessment, assessment of animal grade, productivity, bulls matching.
Stable yields of milk even at diet reduction, animal longevity, precocity, high fat and protein content in milk distinguish Ayrshire cows from other breeds. The article describes specific features of feeding and housing these animals in southern regions of Russia.
Keywords: dairy cattle production, cows, first-calf heifers, Ayrshire breed, Ayrshires, productivity, fat, protein, cheese production, feeding, housing, diet, feed, premixes, mineral substances, environmental conditions, south, southern region.
Production of lard pigs is an important reserve for improving nutritional value of human diet. Comparative analyses show that Russian breeds of animals do not at all come short to foreign breeds in fat quality.
Keywords: pig production technologies, salted pork fat, lard fattening, lard fat, lard breeds of pigs, production of fat pork, selection, pig production.
It was found that first-litter sows do not come short to their contemporaries with two and more farrowings in terms of prolificacy, but surpass them in milking capacity and piglet survival by the time of weaning.
Keywords: piglet feeding, reproductive qualities of sows, gestation period, productivity, prolificacy, pig, sow, nest weight, pig production.
Russian pig breeds were created as a result of long selection for effective assimilation of locally produced feed. These animals have elevated growth rate and good feed conversion, and their meat possesses excellent palatability qualities and high nutritional value.
Keywords: meat quality, feed reserve, biological value of pork, antibiotics, vitamin A, biostimulators, Russian pork producers, high-calorie meat food, Russian pig breeds, lard fattening, suckling pigs, meat dishes.
One of the major factors for successful development of pig production sector is use of the best world gene fund and improvement of animal breeding value assessment methods. Research results give grounds for recommending the staff of stud farms and nuclei to assess and select sows using index assessment.
Keywords: selection, gene fund, genotype, genetic potential, population, pig production, sow, Large White, Landrace, weaning, general selection index (GSI), modified index (Im), reproductive fitness index (RFI), prolificacy, discretisation, breeding value, survival rate.
Pig producers need to give special attention to housing of the sows that provide reproduction of the population. Observing recommendations on their housing and feeding and using research results, it is possible to receive numerous offspring.
Keywords: fleshing, feed, diet, sow, piglet, farrowing, productivity, colostrum, ovulation, ovum, fertilisation, embryo, weaning, insemination, reproduction indicators, nutrients, stress, herd, population, estrus, salted pork fat, culling, lactation, pregnancy, replacement gilts, live weight, follicles, water, temperature, microclimate, lysine, exchange energy, micro nutrients, minerals, offspring.
Comparing meat qualities of young pigs of different genotypes showed that for improvement of their productivity it is practicable to use Landrace and Duroc male pigs for crossing.
Keywords: productivity, control slaughter, slaughter weight, slaughter yield, live weight, salted pork fat, genotype, replacement young animals, fat, meat, meat-fat qualities, meatness, meatness index, pork, pig production, average cut.
It was found that selection of young boar pigs by own productivity and quality of sperm production in elevers allows increasing selection intensity in assessment of replacement young animals of various breeds.
Keywords: selection and breeding, male pig, sperm production, genotype, productivity, live weight, Landrace, Duroc, salted pork fat, ejaculate, sperm cells, selection work, weight gain, lean meat, replacement young animals.
Data analysis showed that the ratio of sexes in pig litter is influenced by genetic factors and confirmed necessity of selection for increase in the number of gilts in the nests of maternal breeds.
Keywords: pig production, fattening young animals, hybridization, crossing, piglets, change of sex, sex of an individual animal, foetal development, thermoregulation, embryos, incubation, pregnancy, uterus, sexed sperm, cattle production, XX-chromosome, XY-chromosome, spermatozoon, male pig, sow, selection work, ovum.
Pig producers need to give special attention to housing of stud boars as it is these male pigs that are responsible for reproduction. Their longevity, high sexual activity and high quality of sperm in many respects depend on the balanced diet and housing conditions.
Keywords: pig production, stud boar, sow, sperm bank, sperm doses, mating, reproduction, seminal liquid, spermatozoa, artificial insemination, spermatogenesis, farrowing, insemination, diet, protein, crude protein, lysine, fibre, mycotoxin, vitamin E, docosahexaenoic acid (DHA), biotin, selenium, ATP, cod-liver oil, control boar, offspring.
Working with poultry of parental herd of broilers, it is important not only to receive optimum egg laying capacity, but also to make maximum use of eggs for incubation. The article provides recommendations for achieving the best results.
Keywords: parental herd of broilers, layers, cocks, incubatory egg, breeding work, egg laying capacity, pubic bones, live weight, leg strength, egg fertilization rate, egg laying, sexual maturity, peak of productivity.
Selection on the Ural White breed of geese allowed receiving poultry with high productivity, good reproductive traits, autosexing colour of down in one-day gostings and excellent meat qualities.
Keywords: geese, Ural White breed, meat and feather-and-down qualities, live weight gain rate, autosexing colour, female goose, stock male goose, family selection, incubatory egg, sex ratio in herd, egg laying capacity, yield of young animals.
Dmitry Sharikov, representative of the company Semex Alliance in Russia, answers the questions of our correspondent.
Keywords: healthy herd, Semex Alliance, dairy cattle production, genetic research, Immunity+ bulls, genetics, high immune response, heritability factor, mastitis, vaccination programs, genetic selection, animals, paratubercular enteritis, immunity genes, colostrum.