В статье представлены результаты исследований крупного рогатого скота ярославской породы в Вологодской области, проведенных на 1323 коровах. Животные выборке были распределены 8 групп по степени кровности с голштинской породой: чистокровные, 1—25%, 26—49%, 50%, 51—74%, 75%, 76—87%, 87,5% и более. Исследовательскую базу данных формировали основе информационно-аналитической системы «СЕЛЭКС» — Молочный скот. Проведена сравнительная характеристика хозяйственно полезных признаков у животных...

In selection and breeding work with cattle for dairy productivity, it is important to select the best individuals their effective use in populations. The purpose of study was origin, genealogical affiliation, genotype value sires from which cows record productivity were obtained. carried out on 15 fathers 20 record-breaking black white breed farms Vologda region. Based results studying origin bulls obtained, found that sires, 9 imported 6 obtained Russian Federation. Four born have one or...

The article’s author determined the development trends of dairy breeds cattle in Vologda region based on quantitative and qualitative traits dynamics from 2015 to 2021. According research results, 2016 2020, number assessed livestock stabilised, totalling 166 thousand animal units, including 76-77 cows. In 2021, there is a decrease total by 3.0 units (up 163 heads), cows - 1.0 75 heads). At breeding farms for analysed period, animals increased 8.27 units. It amounted 43.01 3.56 20.49 region,...

The direction of the breeding process in herds and populations dairy cattle breeds based on actual indicators variability trait is one main factors that allows to determine effectiveness measures. As initial material for research there were taken data records (n=681) Ayrshire breed cows agricultural complex "Maysky" Vologda region. number was distributed by generations (195 with first incomplete lactation, 177 completed 130 second 179 third lactation older). According results, superiority...

The main selection and genetic parameters of the linear classification traits exterior 1,438 first calving cows Leningrad, Kirov Vologda regions Russian Federation. Most variable indicators were udder cleft in all three populations (30.65; 36.67; 30.47 %) body depth Leningrad - 35.57 23.40 %, respectively. “rump width” population at Cv = 41.6% had a rather low absolute score (2.31 ± 0.08 points), therefore more careful is needed. soft pasterns (26.8%), additional teats (26.2%), slack back...

The current state of the herd, breeds and prospects for their development should be determined on basis studying variability main economically useful signs actual indicators, which allows us to identify selection techniques that will ensure an increase in productivity animals with each new generation. studies were carried out a herd Ayrshire cows incomplete first lactation, completed, second, third older, taking into account maternal ancestors. According results research, significant milk...

Currently, the state program for development of agriculture is aimed at implementation main measures - livestock breeding to form a base that meets needs domestic agricultural producers in products. The key aspects increasing productivity dairy breeds cattle are effectiveness use material (bulls) and foreign breeding. conducted studies on population Ayrshire breed Vologda oblast revealed directions process using bulls different superiority used selection terms milk yield mothers 2546 kg...

An increase in milk production both Russia and the Vologda Oblast is possible due to an number of livestock, productivity cows a focus on breeding. Long-term breeding livestock has led deterioration duration economic use cows. The problem long-term still relevant. presented studies were carried out cattle, pedigree farm for Ayrshire breed, which been eliminated over past three years. power coefficients influence bulls age retirement daughters lactations determined using one-way analysis...

The research was conducted in order to study the breeding value of bulls-producers various origins, used stock cows Yaroslavl breed Vologda region. work done on basis information analytical system «Seleks» for 52 and Holstein obtained different countries world herd 1600 dairy cattle farm ZAO Sheksna General scientific methods were used: monographic, statistical, data visualization. It found that bulls produced 5 world: USA, Canada, Germany, Netherlands Russia. vast majority 76.9%...

Проведен сопоставительный анализ генеалогической структуры племенного поголовья ярославской породы Вологодской области по данным 2005 и 2018 годов. Установлено, что в году структуру входили 8 отечественных генеалогических линий. В результате скрещивания с голштинской породой произошли значительные изменения. Доля животных, принадлежащих к линиям породы, уменьшилась со 100% до 35,3% году. генеалогическую современной популяции добавились 3 линии селекции, которым на 1.01.2019 года относится...

Сельскохозяйственное производство страны определяет условия поддержания жизнедеятельности общества и потому имеет особое значение. При этом обеспечение продовольственной безопасности невозможно без внедрения в отрасли достижений научно-технического прогресса. Огромная роль принадлежит профильным научным учреждениям, числе которых Северо-Западный научно-исследовательский институт молочного лугопастбищного хозяйства — обособленное подразделение ФГБУН «Вологодский научный центр РАН». В 2021...

The use of foreign-bred bulls leads to changes in the genetic structure black-and-white breed population, which affects level population characteristics. study was conducted comparative variability and heritability productive reproductive characteristics daughters sires domestic foreign selection pedigree livestock 10 250 cows 1st calving modern black-motley Vologda region. superiority offspring average indicators all studied traits established with confidence (P<0,001). There were no...