scholarly journals Evaluation of breeding groups by living weight of over-age cows depending on breeding

2021 ◽  
pp. 89-97
Author(s):  
A. S. Durov ◽  
V. S. Deeva
Keyword(s):  
Milk Fat ◽  
Live Weight ◽  
Fat Content ◽  
Black And White ◽  
Breeding Group ◽  
Novosibirsk Region ◽  
White Breed ◽  
Productive Traits ◽  
The Republic ◽  
Breeding Groups

 The assessment of cattle of black-and-white, red steppe, Simmental breeds, differentiated by live weight, was carried out. Three groups were formed: selection, production, and marriage. The selection parameters are calculated using the standard deviation. The calculated parameters of selection of animals of breeding groups by live weight in full-aged cows of the black-and-white breed are 527–472 kg, red steppe-595–514, Simmental breed from the Novosibirsk region – 555–447, the Republic of Khakassia – 610–475, Hereford – 570–462 kg. The animals of the breeding group of the black-and – white breed have an average live weight of 552.5 kg, the red steppe – 641.1 kg, the Simmental Novosibirsk region – 576.7 kg, the Republic of Khakassia – 648 kg, and the Hereford Region-591.1 kg. The analysis of interbreed differences of cows of breeding groups shows that animals of Simmental and Red steppe breeds surpass their peers in most measurements. Animals of the black-and-white breed are the leaders in milk yield and milk content index, Red steppe-in milk fat content and milk fat, Simmental cows bred in the Republic of Khakassia – in live weight. The assessment of production groups of animals by live weight allows us to note that the black-and-white breed surpasses its peers in milk productivity and is characterized by broadness; the red steppe breed – by live weight and fat content of milk and is characterized by elongation; the Simmental breed has a greater development of high-altitude measurements. Evaluation of breeding groups of animals by live weight allows us to note its relationship with other productive traits. The formation of a breeding group with a high live weight allows you to create a tall and stretched array of cattle. 

scholarly journals Assessment of selection groups of mature cows of various breeds, differentiated by milk fat

2020 ◽  
pp. 73-81
Author(s):  
A. S. Durov ◽  
V. S. Deeva
Keyword(s):  
Milk Yield ◽  
Milk Fat ◽  
Live Weight ◽  
Black And White ◽  
Breeding Group ◽  
Novosibirsk Region ◽  
White Breed ◽  
The Republic ◽  
Selection Parameters ◽  
Breeding Groups

The assessment of black-and-white, red steppe, and Simmental cattle, differentiated by milk fat was carried out. Three groups were formed: selection, production and marriage. The selection parameters are calculated using the standard deviation. The calculated parameters of selection of animals of the breeding group for milk fat in adult black-and-white cows are at least 179 kg, red steppe - 186, Simmental breed from the Novosibirsk region - 143, the Republic of Khakassia - 176 kg. Cows of the red steppe breeding group are leading in productivity. Their milk fat index is 216.8 kg (P ≥ 0.95). In animals of the black-and-white breed, the milk fat productivity is 193.2 kg. In the Simmental Republic of Khakassia it is 193.8, in the Novosibirsk region - 163.5 kg. Analysis of interbreed differences in cows of breeding groups shows that animals of the black-and-white breed surpass their peers in chest width behind the shoulder blades, milk yield and milk production index. Animals of the red steppe breed are the best in milk fat, live weight, width in shanks, oblique body length, oblique rear length, chest girth, milk fat content. Simmental cows bred in the Novosibirsk region lead over their peers in height at the withers, and Simmental cows in Khakassia - in height at the sacrum, chest depth, cannon girth, assessment of the exterior. Evaluation of the production groups of animals for milk fat allows to note that the selection group of the black-and-white breed, despite the superiority in milk yield, is inferior to the peers of the red steppe and Simmental in terms of the evaluated character. However, the cows of the black-and-white breed of the production group surpass their peers in milk fat and most other signs. The formation of breeding groups for milk fat enables to note the consolidation of the black-and-white breed in terms of productive and exterior characteristics. The Red Steppe and Simmental breeds have a high potential for improvement. These breeding groups are worthy of competing with the contemporaries of the black-andwhite breed in milk fat productivity.

scholarly journals Comparative evaluation of selections groups for milking of full-age cows of various breeds

2021 ◽  
pp. 71-79
Author(s):  
A. S. Durov ◽  
V. S. Deeva
Keyword(s):  
Milk Production ◽  
Milk Yield ◽  
Milk Fat ◽  
Live Weight ◽  
Population Based ◽  
Black And White ◽  
Novosibirsk Region ◽  
White Breed ◽  
Selection Parameters ◽  
Breeding Groups

An assessment of the cow population based on exterior and productive characteristics in the formation of production groups identified by the level of milk yield was carried out. It is established that the selection parameters for the yield of milk in the breeding group of Mature cows of Simmental breed in Novosibirsk region for black-motley breed on 15% exceeds the requirements of the standard, red steppe -17.9, Simmental Khakassia - 23.5 %. The analysis of interbreeding differences by breeding groups shows that animals of the black-and-white breed significantly outperform their peers of other breeds in terms of chest width behind the shoulder blades, chest girth, milk yield and milk production index. Animals of the red steppe breed have superiority in live weight, width in makloks, oblique length of the trunk, oblique length of the back, fat content of milk, milk fat. Simmental cows bred in the Novosibirsk region surpass their peers in height at the withers, and simmentals of Khakassia are the leaders in height at the rump, chest depth, waist circumference, and exterior assessment. The assessment of the division of animals of the evaluated breeds into breeding groups by milk yield allows us to note that the leadership of the black-and-white breed is not so obvious among plentiful individuals. Cows of breeding groups of red steppe and Simmental breeds have the same productivity with black-and-white milk yield and milk yield index, and red steppe cows surpass their peers in milkfat content and milk fat. The selection of groups by milk yield showed the consolidation of the black-and-white breed by productive and exterior characteristics. The red steppe and Simmental breeds have a high potential for improvement. their breeding groups closely approach the analogues of the black-and-white breed in terms of milk production.

scholarly journals Influence of Genotype and Intensity of Cows’ Formation on the Level of their Lactation performance

2021 ◽  
pp. 19-23
Author(s):  
Т.В. Павлова ◽  
Н.Н. Шамич ◽  
В.А. Бельцов
Keyword(s):  
Milk Fat ◽  
Live Weight ◽  
Weight Fraction ◽  
Average Yield ◽  
Lactation Performance ◽  
Black And White ◽  
Holstein Breed ◽  
White Breed ◽  
The Republic ◽  
Protein Milk

Цель работы – установить влияние генотипа и интенсивности формирования коров на уровень их молочной продуктивности в одном из предприятий Минской области Республики Беларусь. Объектом исследований являлись 940 коров белорусской чёрно-пёстрой породы с разной долей генотипа по голштинской породе. Для проведения группировки коров по генотипам у каждого животного определяли линейную принадлежность, породность по голштинской породе и страну селекции отца. При оценке молочной продуктивности коров учитывались следующие показатели: удой за 305 дней первой и последней законченной лактации; массовая доля жира, %; массовая доля белка, %; выход молочного жира и белка, кг. Установлено, что с увеличением породности по голштинской породе у коров в стаде рассматриваемого предприятия прослеживается повышение удоев и снижение жирно- и белковомолочности. Наиболее высокий удой наблюдается у коров шведской (9190 кг) и итальянской (8148 кг) селекций, удой этих коров достоверно (Р = 0,999) превышает средний по стаду на 2019 и 977 кг соответственно; массовая доля жира и белка в молоке – у коров российской селекции (4,26 и 3,54% соответственно); у животных белорусской селекции удой составил 6714 кг при жирно- и белковомолочности 4,24 и 3,49% соответственно. С увеличением интенсивности формирования животных снижается возраст первого осеменения и увеличивается живая масса при первом осеменении, наиболее близки к оптимальным параметры у умеренноформирующихся животных. У них же отмечен и наиболее высокий удой за 305 дней первой лактации – 7226 кг, что достоверно (Р = 0,95) превышает этот показатель у медленно- и быстроформирующихся животных на 264 и 150 кг соответственно. The purpose of the work is to establish the influence of the genotype and intensity of cows’ formation on the level of their lactation performance in one of the enterprises of the Minsk region of the Republic of Belarus. The object of research was 940 cows of the Belarusian Black-and-White breed with different genotype proportions for the Holstein breed. To group cows by genotypes, each animal was determined by directional affiliation, race by Holstein breed and country of father selection. When assessing the lactation performance of cows, the following indicators were taken into account: yield for 305 days of the first and last completed lactation; weight fraction of fat, %; weight fraction of protein, %; milk fat and protein yield, kg. It was established that with an increase in breeding in the Holstein breed, cows in the herd of the enterprise under consideration show an increase in yields and a decrease in fat and protein milking capacity. The highest yield is observed in cows of Swedish (9190 kg) and Italian (8148 kg) selection, the yield of these cows significantly (P = 0.999) exceeds the herd average yield for 2019 and 977 kg, respectively; mass fraction of fat and protein in milk – in cows of Russian selection (4.26 and 3.54%, respectively); in animals of Belarusian selection the yield was 6714 kg with fat and protein milking capacity of 4.24 and 3.49%, respectively. As the intensity of animal formation increases, the age of the first insemination decreases and the live weight increases at the first insemination, the parameters are closest to optimal in moderately forming animals. They also had the highest yield for 305 days of the first lactation – 7226 kg, which significantly (P = 0.95) exceeds this indicator in slow and fast-forming animals by 264 and 150 kg, respectively.

Milk productivity of the cows of Holstein and Simmental breeds in environment of the Novosibirsk region

2020 ◽  
pp. 41-49 ◽  
Author(s):  
A. Zheltikov ◽  
N. Kostomakhin ◽  
D. Adushinov ◽  
O. Zaiko ◽  
V. Dementev ◽  
...  
Keyword(s):  
Protein Content ◽  
Milk Yield ◽  
Milk Fat ◽  
Correlation Coefficients ◽  
Live Weight ◽  
Fat Content ◽  
Milk Productivity ◽  
Holstein Breed ◽  
Novosibirsk Region ◽  
Daily Milk Yield

The characteristic of milk productivity of cows of Holstein and Simmental breeds in LLC “Sibirskaya Niva” in the Maslyaninsky district in the Novosibirsk region has been given. It has been revealed that under the natural and climatic environments of the Western Siberia, when creating favorable conditions for feeding and housing for cows of Holstein and Simmental breeds have sufficiently high milk productivity. It has been found that Holstein first-calf heifers surpassed their Simmental herdmates by 959 kg in milk yield for the first 305 days of lactation under the same conditions of housing and feeding, by 3,1 kg in daily milk yield, by 38,2 kg in milk fat yield, and by 28,3 kg in milk protein yield (P < 0,001). There were no statistically significant differences between animals of Holstein and Simmental breeds in terms of fat and protein content in milk, which amounted to 3,94 and 2,96 % in Holstein breed and 3,97 and 2,98 % in Simmental breed, respectively. Both breeds have shown high milk productivity during the first 3 lactations. Thus, the milk yield of Holstein cows for the first 3 lactation was 6475–9290 kg, Simmental cows it was 5516–7680 kg, fat content was 3,93–3,99 and 3,96–3,97 %, respectively. The protein content in the milk of cows of both breeds did not exceed 3,0 %. High variability has been found in milk yield, yield of milk fat and protein, the coefficient of milk content and duration of lactation, the lowest in the content of protein and fat in milk and live weight. The correlation coefficients between the fat and protein content in milk were generally positive, but did not exceed 0,28. Therefore, breeding in the herd of cows in LLC “Sibirskaya Niva” have to be conducted not only by fat content, but also by protein content in milk.

scholarly journals EFFECT OF THE DRUG "E-SELENIUM" ON THE DISPERSION OF MILK FAT IN COW'S MILK

2021 ◽  
Vol 245 (1) ◽  
pp. 71-76
Author(s):  
L.G. Kashirina ◽  
◽  
K.I. Romanov ◽  
Keyword(s):  
Milk Fat ◽  
Live Weight ◽  
The Body ◽  
Quantitative Composition ◽  
Black And White ◽  
Fat Globules ◽  
White Breed ◽  
Total Fat ◽  
The Relationship ◽  
Experimental Group

The antioxidant drug "E-selenium" was used to reduce the processes of LPO in the body of fresh cows. Two groups were formed from the analogous cows of the black-and-white breed: The Control was intact, Experienced received the antioxidant drug injection at a dose of 10 ml at the rate of 1 ml per 50 kg of live weight per head for 4 months of lactation from the second. The diets of animals of all groups were the same, balanced in nutrients and met the standards of the RAAS. The duration of the experiment was 150 days. During the period from the 3rd to the 5th month of lactation, there was a positive dynamic in increasing the number of fat globules in the milk of cows of the Experimental group. By the end of the 4th month, it was higher than the Control by 8.9 %. This confirms the active effect of the drug "E-selenium", which contributes to a positive dynamic in increasing the size of fat globules. Non-enzymatic antioxidant tocopherol is an active element of the anti-oxidative system. Selenium stimu-lates the body's own antioxidant system. In both experimental groups, the relationship between the concentration of peroxidation products and the quantitative composition of fat globules and their size was established. In the milk of cows of the Experimental group, the oxidation processes were inhibited by neutralizing the products (POL), increasing the number of large fat globules and the total fat content in the milk.

scholarly journals DAIRY PRODUCTIVITY OF COWS OF THE HOLSTEIN BLACK-AND-WHITE CATTLE OF THE KAZAKHSTAN POPULATION

REPORTS ◽  
2020 ◽  
Vol 6 (334) ◽  
pp. 109-114
Author(s):  
K.Zh. Zhumanov ◽  
◽  
A.D. Baimukanov ◽  
Keyword(s):  
Milk Fat ◽  
Research Information ◽  
Black And White ◽  
Livestock Breeding ◽  
White Breed ◽  
White Cattle ◽  
The Republic ◽  
Analytical System ◽  
Research Period ◽  
Official Data

The article deals with the productive parameters of cows of dairy cattle of the Holstein black-and-white breed in Kazakhstan. The research aimed to determine the level of productivity of the first-calf heifers of the Holstein black-and-white cattle. As an object of the research, information was used on first-calf heifers lactating in 2016-2017 in the breeding herds of the Holstein black-and-white cattle of the Republic of Kazakhstan. The source was the official data of the information-analytical system (IAS) of the livestock breeding of the Republic. The data analysis on the dairy productivity of the cows-daughters of the estimated servicing bulls is carried out according to the indicators of milk yield, the fat and protein content in milk, the yield of milk fat and protein for 305 days of lactation and the research period.

ПРОДУКТИВНЫЕ КАЧЕСТВА БЫЧКОВ, ПОТРЕБЛЯЮЩИХ КОНСЕРВИРОВАННЫЙ СЕНАЖ

2019 ◽  
Author(s):  
KH.KH. TAGIROV ◽  
I.V. MIRONOVA ◽  
E.V. POZDNYAKOVA ◽  
L.A. ZUBAIROVA ◽  
N.V. GIZATOVA
Keyword(s):  
Propionic Acid ◽  
Live Weight ◽  
Control Group ◽  
Black And White ◽  
Propionic Acid Bacteria ◽  
White Breed ◽  
Working Solution ◽  
The Republic ◽  
Growth Energy ◽  
Meat Productivity

В статье приводятся показатели, характеризующие рост и уровень мясной продуктивности бычков черно-пестрой породы при скармливании им люцернового сенажа, заготовленного с разной дозировкой биозакваски на основе пропионовокислых бактерий. Препарат вводили в процессе закладки сенажа в виде рабочего раствора в количестве 2, 4 и 6 л на 1 т консервируемой массы. Опыт проводился в условиях Республики Башкортостан. Для этого 40 10-месячных бычков разделили на 4 группы. Молодняк контрольной группы получал неконсервированный сенаж, а опытных групп — сенаж, с закваской на основе пропионовокислых бактерий в указанных выше дозах. Установлено, что молодняк опытных групп лучше рос и развивался. В 12 мес его живая масса была выше, чем в контрольной группе на 2,50—6,10 кг (0,73—1,77%); в 15 мес — на 9,34—15,14 кг (2,20—3,57%; Р<0,05); в 18 мес — на 15,51—23,31 кг (2,10—4,66%; Р<0,05—0,01). Более высокая энергия роста молодняка опытных групп при откорме на рационах, включающих консервированный сенаж, способствовала и более высоким убойным показателям. Наилучший эффект проявился у бычков, потребляющих сенаж с закваской на основе пропионовокислых бактерий в дозе 4 л рабочего раствора на 1 т зеленой массы. Данная дозировка обеспечивает увеличение массы парной туши на 12,9 кг (4,79%),The article presents the indicators characterizing the growth and level of meat productivity of bull-calves of the black-and-white breed, when they are fed alfalfa haylage, harvested with different dosages of biosakvaski based on propionic acid bacteria. The drug was administered in the process of laying haylage in the form of a working solution in the amount of 2, 4 and 6 liters per 1 ton of preserved mass. The experiment was conducted in the conditions of the Republic of Bashkortostan (Alga, collective farm, Chekmagushevsky district). For this 10-month gobies were divided into 4 groups. The young of the control group did not receive canned haylage, but the test groups received haylage, with sour based on propionic acid bacteria in the above doses. It was found that the young of the experimental groups grew and developed better. So at 12 months of age, their live weight was higher than in the control by 2.50—6.10 kg (0.73—1,77%); in 15 months — by 9,34—15,14 kg (2,20—3,57%; P<0,05); in 18 months — by 15,51—23,31 kg (2,10—4,66%; P<0,05—0,01). The higher growth energy of the young of the experimental groups during fattening on rations, including canned haylage, contributed to a higher slaughter rate. The best effect was manifested in calves consuming haylage with ferment based on propionic acid bacteria in a dose of 4 liters of working solution per 1 ton of green mass.This dosage provides an increase in the mass of steam carcass by 12,9 kg (4,79%), carcass output by 1,0%; slaughter weight — by 14,0 kg (4,95%; P<0,05); slaughter yield — by 1,2%.

THE BLACK-AND-WHITE CATTLE BREEDING RESULTS WHEN USING THE POTENTIAL OF HOLSTEIN BREED

2020 ◽  
Vol 5 (86) ◽  
pp. 107-114
Author(s):  
А.I. Shendakov ◽  
◽  
◽  
Keyword(s):  
Protein Content ◽  
Milk Yield ◽  
Milk Fat ◽  
Fat Content ◽  
Mothers And Daughters ◽  
Black And White ◽  
Holstein Breed ◽  
Long Period ◽  
Productive Traits ◽  
Positive Correlations

The share of genes of Holstein breed was 76.8% in the herd. It was found that during the research period, the normal distributions of milk productivity traits were observed in the herd. The number of cows in the herd decreased, but their breeding qualities increased. The main reason for which animals were culled from the herd was their gynecological diseases (in some years, up to 175 to 188 heads were culled). The protein content in milk varied from 2.90 to 3.39%. Most cows produced milk in which the protein content was at a level of 3.00 to 3.19%. The herd showed positive correlations between the yields of mothers and daughters for the 305-day-long period: 0.234 for the whole herd, 0.517 for the group of cows with 50% of Holstein breed (HF) genes, 0.098 for the group with 51-75% of HF genes, and 0,189 for the group with minimum 76% of HF genes. For the herd, the heritability coefficient for milk yield for the 305- day-long period (h2) was 0.468. The percent of the protein content in milk produced by cows with 50% of Holstein genes had a high heritability coefficient of 0.668. Only cows of the M. Chieftain line showed positive correlations between the fat content in milk produced by mothers and daughters, and positive correlations between the protein content in milk produced by cows of the W. B. Ideal and M. Chieftain lines was found. With an increase in percent of Holstein breed genes (HF) from 25 to 75% and more, there were no significant differences in milk yield among first-calf cows (they amounted to 5,424 ± 83 – 5,520 ± 116 kg of milk). The percentage of fat and protein in milk for the whole herd was positively interconnected (r = + 0.460). On average, daughters exceeded their mothers by 23.3% in terms of milk yield and by 2.0% in terms of the percentage of fat content in milk (of the trait value). The quantity of milk fat and protein increased by 25.8 and 22.5%, respectively. Based on the research results, it has been concluded that the Holstein breed has a positive effect on the productive traits of dairy cattle, but technology optimization is required to continue selection activities.

scholarly journals ESTIMATED BREEDING VALUES OF SERVICING BULLS OF THE HOLSTEIN BLACK-AND-WHITE BREED BY QUALITY OF OFFSPRING USING THE BLUP METHOD

REPORTS ◽  
2020 ◽  
Vol 5 (333) ◽  
pp. 35-41
Author(s):  
K.Zh. Zhumanov ◽  
◽  
T.N. Karymsakov ◽  
M.A. Kineev ◽  
A.D. Baimukanov ◽  
...  
Keyword(s):  
Milk Fat ◽  
Rank Correlation ◽  
Correlation Coefficients ◽  
Breeding Value ◽  
Research Information ◽  
Black And White ◽  
Livestock Breeding ◽  
White Breed ◽  
The Republic ◽  
Estimated Breeding Values

The aim of the research was to estimate the breeding value of the servicing bulls of the Holstein black-and-white breed according to the optimized equation of the mixed BLUP model. Within a comparative aspect, the estimation results of bulls calculated using the BLUP methodology are presented. As an object of the research, information was used on first-calf heifers (daughters of the evaluated bulls), who lactated in breeding herds of the Holstein cattle of the Republic of Kazakhstan in 2016-2017. The source was the official information analytical system (IAS) of livestock breeding of the Republic of Kazakhstan. The analysis of information on the dairy productivity of the cows-daughters of the estimated bulls was performed according to the indicators of the milk yield, the contents of fat and protein in milk, the milk fat and protein yield for 305 days of lactation and the study period. To compare the obtained results, the average values of breeding value indices, the reliability of their assessment, and the rank correlation coefficients were calculated

scholarly journals The influence of genotypic factors on the forming of the economic use of values of ukrainian bleck and wheat milk breeds

2018 ◽  
pp. 6-13 ◽  
Author(s):  
N. Klopenko ◽  
R. Stavetska ◽  
M. Bushtruk ◽  
I. Starostenko ◽  
O. Babenko
Keyword(s):  
Milk Yield ◽  
Milk Fat ◽  
Production Efficiency ◽  
Live Weight ◽  
Dispersion Analysis ◽  
Fat Content ◽  
The Body ◽  
Body Measurements ◽  
Black And White ◽  
Selection Of

The evaluation of dairy cows` exterior plays a key role in the system of breeding because well-defined breed typology and high exterior evaluation cause high production efficiency. The objective of the study was to evaluate the exterior of the cows in Ukrainian Black and White dairy breed, to analyze the effectiveness of the selection of first-calf cows according to the body measurements and to study the influence of genotype factors on the formation of the exterior. For research purpose animal groups were formed on the principle of analogues, taking into account the part of Holstein inheritance, parentage, linear belonging, and age. Depending on the part of Holstein inheritance researched livestock was divided into three groups: 75,0-87,4 %, 87,5-99,9 % and 100 %. As a result of our own research it has been established that simultaneously with an increasing of the part of Holstein inheritance the body measurements increase too. It indicates about the improving effect of the Holstein breed on the formation of the exterior in the Ukrainian black-and-white milk breed. The first-calf cows with part of Holstein inheritance 100 % have advantages over the cows with the same age with part of Holstein inheritance 75,0-87,4 % with the withers height – 4 cm (P < 0,001), sacrum height – 4 cm (P <0.001), depth of chest – 1 cm, width of chest – 1 cm, width of hips – 1 cm, length of thoracic – 3 cm, chest girth – 2 cm, width of pins – 1 cm (P <0,001); the advantage over the first-calf cows with part of Holstein inheritance 87,5-99,9 % was 3 cm in withers height, 2 cm in sacrum height and 1 cm in all other cases. An increasing of the part of Holstein inheritance is accompanied by an increasing of milk yield, milk fat and milk protein. The higher milk yield had cows with the part of Holstein inheritance 100 % – by 294 kg compared to cows of the same age with the part of Holstein inheritance 87,5-99,9 % and by 2017 kg (P < 0,001) compared to cows of the same age with the part of Holstein inheritance 75,0-87,4 %. Fat content in milk of cows with the part of Holstein inheritance 100 % was lower by 0,02 % compared to cows with the part of Holstein inheritance 87,5-99,9 % and 0,21 % (P < 0,001) compared to cows with the part of Holstein inheritance 75,0-87,4 %, it was expected – the higher milk yield, the lower fat content in milk. The effectiveness of the simultaneous complex selection of dairy cattle on several grounds depends on the existence of correlation between them. The correlation between the body measurements of cows and 305-milk yield is positive, but varied in strength. The average strength of the correlation is observed between the milk yield and withers height (r = +0,233, P < 0,001), milk yield and length of thoracic (r = +0,332, P < 0,01), in other cases, the strength of the correlation is weak, but with sacrum height (P < 0,01), chest girt (P < 0,01) and depth of chest (P < 0,05) is significant. One-factor dispersion analysis was carried out to determine the level of determinism of live weight and body measurements by genotype factors. According to the results it was established that the influence of the bull's origin on the live weight of their first-calf daughters was 72,8 %, on the body measurements – 31,5- 91,3 %, the influence of line belonging amounted 81,0 % and 36,1-69,4 %, the influence of the part of Holstein inheritance was 26,3 % and 15,9-39,5 %, respectively. All genotypic factors have a significant effect on the live weight of the first-calf cows (P < 0,05 ... 0,001), withers height (P < 0,05...0,01), width of chest (P < 0,01...0,001) and width of pins (P < 0,05...0,001). Thus, the greatest influence on the body measurements and live weight of first-calf cows has the bull's origin, just below – the line belonging, the lowest – the part of Holstein inheritance, but in all cases it is rather high. It was established that for improvement of the cows` exterior will be promote the using of bulls and lines that have the desirable indicators of live weight and body measurements of daughters, as well as animals with a high part of Holstein inheritance, which have by good exterior characteristics. For effective selection it is needed to use of detected correlations between milk yield and body measurements. Key words: exterior, body measurements, part of Holstein inheritance, bull's origin, milk productivity.

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