scholarly journals FEATURES OF HEREDITARY INFLUENCE OF HOLSTEIN BLOOD SHARE ON INDICATORS OF LONGEVITY OF COWS OF UKRAINIAN RED-AND-WHITE DAIRY BREED

2018 ◽  
Vol 51 ◽  
pp. 170-177 ◽  
Author(s):  
L. M. Khmelnychyi ◽  
V. V. Vechorka
Keyword(s):  
Life Expectancy ◽  
Milk Yield ◽  
Milk Fat ◽  
Positive Influence ◽  
Milk Productivity ◽  
Significant Difference ◽  
Two Generations ◽  
The Impact ◽  
Economic Use ◽  
Dairy Breed

At the base of a breeding farm in Cherkassy region, with the modern highly mechanized technologies of milk production, five groups of cows – the crossbred genotypes of Ukrainian Red-and-White Dairy breed with a gradation of 12,5% blood share of Holstein (I – 37,5-50,0; II – 50,1-62,5; III – 62,6-75,0; IV – 75,1-87,5; V – 87,6-100,0) were studied. The aim of this study was to explore the impact of Holstein heredity on indicators of life expectancy, economic use and lifetime productivity of cows. The results of retrospective analysis proved significant effect of Holstein conditional heredity on indicators of life expectancy, economic use and lifetime productivity of the Ukrainian Red-and-White Dairy cows of the experimental farm. The best among all five groups by indicators of life expectancy, economic use, number of lactations, lifetime milk yield and yield of milk fat, and milk yield for one day were the crossbred genotypes of the second group with conditional heredity of Holsteins 50,1-62,5 %. The advantage of the second group of animals with Holstein heredity from 50,1 to 62,5 % differed significantly in life expectancy and economic use exceeding other groups of animals by these traits by 451-1449 and 465-1472 days respectively with a significant difference at P<0,001, except their comparison with the first group. The animals of this group were used the longest in the herd, during five lactations and characterized by the highest coefficient of economic use and it is higher by 1,2-3,1 lactation and by 6,0-20,7 coefficient of economic use respectively, with degree of reliability at P<0,01-0,001 compared with all the groups of crossbred genotypes. For lifetime milk productivity advantage was also in favor of crossbred animals with Holstein heredity from 50,1 to 62,5%. If milk yields of crossbred genotypes of the first and third groups were less than the yield of animals of the second group only by 5571 and 5848 kg (P<0,05 and 0,01), then for high-blood genotypes of the fourth and fifth groups they were less by 11813 and 14021 kg at P<0,001 or in 1,7 and 2,0 times. In general, cows with the highest share of Holstein blood (87,6-100,0%), and this is genotype which will have a dominant distribution in the array of Ukrainian Red-and-White Dairy breed at least for one or maximum for two generations, with 305-day milk yield of first-calf heifers of 5677 kg and for one day of economic use 14,0 kg of milk exceeded other groups of crossbred genotypes with degree of reliability by 455-806 (P<0,001) and 0,8-2,5 (P<0,01-0,001) kg of milk respectively; it unconditionally testifies to positive influence of Holstein heredity on these traits. The best crossbred genotypes by indicators of life expectancy, economic use, number of lactations and lifetime productivity were with 50,1-62,5% share of Holstein blood in the herd of Ukrainian Red-and-White Dairy cattle. Productivity of crossbred cows per lactation increased with growing share of Holstein blood, but indicators of longevity and lifetime productivity decreased significantly, especially at high-blood animals with heredity of improving breed higher than 75,1%.

scholarly journals Duration and effectiveness of lifelong use of cows according to their milk yield for first and better lactation

2017 ◽  
Vol 19 (74) ◽  
Author(s):  
Y. V. Poslavska ◽  
Y. I. Fedorovych ◽  
P. V. Bodnar
Keyword(s):  
Life Expectancy ◽  
Correlation Analysis ◽  
Milk Yield ◽  
Milk Fat ◽  
Correlation Coefficients ◽  
Fat Content ◽  
The Impact ◽  
Economic Use ◽  
Dairy Breed ◽  
Different Levels

The aim of research was to study the duration the effectiveness and lifelong use of Ukrainian Black-Spotted dairy breed cows and the impact on these indicators of milk yield for the first and best of lactation. Research was carried out in Ltd. «Milk River» Sokal district, Lviv region. It is established, that the highly indices of life expectancy, productive use, lactation, number of lactations for life and the coefficient of economic use there were cows, milk yield for the first lactation of which was 3501–4000, for the best – 5001–5500 kg, but for the lifelong yields and the amount of milk fat – with the milk yield for the first lactation 4001–4500,  for better – more than 6000 kg. Better by yields and the number of butterfat on one day of life, productive use and lactation were cows with milk yield for the first lactation of over 5500 kg, and for better – more than 6000 kg. Thanks to the correlation analysis is set different levels and the direction of indicators duration communication and the efficiency and lifetime use of experimental cows with their milk yield for the first lactation. The highest positive and significant correlation coefficients have been established between the animals yields for the first lactation and their yields (0.426–0.812) and the amount of milk  fat  (0.445–0.811) for a day of life, productive use and lactation. Negative, but probable links were between milk yield of cows for the first lactation and the duration of their life, productive use, lactation, number of lactations in life, the coefficient economic use. The greatest influence of cows yield for the first lactation had their yield and the amount of milk fat for a day of productive use (61.89 and 62.47% respectively) and lactation (54.97 and 56.44%) and the lowest – in a lifelong yield (2.01%) and the lifelong number of milk fat (1.97%). The largest predicted value had the links between the yields for the best lactation of cows and their lifelong milk yield, lifelong number of milk fat, yields and the amount of milk fat for a day of life and productive use and lactation. These links in all cases were close, highly reliable and were in the range 0.598–0.911. The lowest correlation coefficient, in addition improbable and negative, was observed between milk yield of cows for the best lactation and average fat content in milk for all lactation (-0.008). Significant influence of better lactation on the above mentioned indicators are confirmed by our calculation the indicators of influence power, which ranged from 39.53 to 77.68%. The lowest power of influence of this factor was observed in the average fat content in milk for all investigated lactation (1.02%).

scholarly journals Features of milk productivity of cows of Ukrainian brown dairy breed and the influence of genotypical and paratypical factors on its formation

2018 ◽  
Vol 20 (89) ◽  
pp. 8-16
Author(s):  
Y. I. Sklyarenko
Keyword(s):  
Milk Yield ◽  
Significant Influence ◽  
Milk Fat ◽  
Reproductive Capacity ◽  
Milk Productivity ◽  
Reproductive Ability ◽  
Breeding Farms ◽  
The Impact ◽  
Economic Use ◽  
Dairy Breed

The indicators of milk productivity of cows of Ukrainian brown dairy breed were studied. The research was carried out on the basis of breeding farms of animal breeding of this breed by assessing the data of primary zootechnical accounting. It is established that the level of milk productivity of cows meets the breed standard and is within 4.5 thousand kg of milk. A significant correlation between the indicators of milk productivity and reproductive capacity was found. Milk productivity is negatively correlated with the main indicators of reproductive ability. The influence of genetic and paratypic factors on the formation of milk productivity was studied. It is established that a conditional bloodedness, linear membership and origin in the father significantly affects the level of milk productivity of cows. The impact of genetic factors increases from conditional crow nest of Swiss breed to descent on the father. Animals with the highest proportion of Swiss breed were significantly dominated by other animals by the milk yield per the first lactation. The highest milk yield in the first lactation were obtained from the animal of Vigate 083352 line and the smallest of Payvan 136140 line. By the greater amount of milk fat and protein, the animals of the Vigate 083352 line also prevailed. Animals from different bulls for the first lactation had milk yield in the range of 2780–4464 kg of milk, the amount of milk fat and protein, respectively, 103–176 kg and 89–134 kg. A big impact on the economy of milk production having a term of economic use of animals. Therefore, in our view longevity as a symptom of dairy cows is an important selection basis. The significant influence of genotypic factors on the indicators of the duration of use and lifetime productivity of cows was established. The greatest impact of the paratypical factors had the farm, which contains animals. The conditions of keeping and feeding in the farm had a significant impact on the duration of use and lifetime productivity of cows. The presence of significant influence of genotypic and paratypical factors on the milk productivity of animals makes it possible to improve its breeding and technological activities.

scholarly journals CONDITIONALITY OF PRODUCTIVE LONGEVITY AND LIFELONG PRODUCTIVITY OF COWS OF BLACK-WHITE BREED BY GENETIC FACTORS

2017 ◽  
Vol 53 ◽  
pp. 222-227
Author(s):  
T. M. Komendant
Keyword(s):  
Milk Yield ◽  
Milk Fat ◽  
Total Duration ◽  
Statistical Processing ◽  
Lactation Period ◽  
Milk Productivity ◽  
Holstein Breed ◽  
Long Period ◽  
The Impact ◽  
Economic Use

Objective: to study the dependence of productive longevity of cows of black and motley breed on genetically determined factors - linearity and bloodiness in Holstein breed. Methods: zootechnical, biological, statistical. The materials of the studies were pedigree cards of cows  and bulls, bull catalogs, zootechnical reports on pedigree work with the herd, the cattle base of the Grodno region, and also registers of rearing and rearing of the litter. To study the effect on the longevity of cows and their lifelong productivity of the "linear accessory" factor, all animals that were eliminated in 2006-2014 were divided into groups according to the lines: Adema 25437, Annas Adema 30587, Vis Eidial 933122, Montvik Chiftein 95679, Nico 31652 , Pabst Governera 882933, Reflection Sovering 198998, S. Sensation 1267271, Hiltes Adema 37910. Depending on the bloodiness of the Holstein breed, the animals were divided into four groups: I - up to 25% of Holstein genes, II- 25,0 – 49,9% of the genes of the Holstein genus, III - Holstein blood 50% and more, IV - purebred black-motley cows. Indicators of milk productivity (life-time milk yield (kg) and lifetime yield of milk fat (kg), milk yield for 1 day of lactation (kg), total duration of the lactation period (days) were studied in the experimental animals, and the duration of economic use (lactations). Main results. The results obtained during the statistical processing of data indicate that the cows belonging to the Pabst Governera line 882933 differed in the longest period of economic use among the abandoned animals. Duration of use in animals of this line was 8.43 lactations, which is more than for cows of other lines at 1,72-6,67 lactation. It should be noted that cows belonging to the Adem 25437 lines (6,71 lactations) and S. Sensation 1267271 (5,49 lactations) were also characterized by a rather long period of economic use. Due to the long period of use of the cow, the Pabst Governera line 882933 had the highest indicator of lifelong milk yield – 51535,58 kg of milk and the yield of milk fat – 1914,03. But as for milk for one day of lactation, here the leadership belonged to individuals belonging to the line Vis Eidial 933122 and amounted to 21,19 kg of milk per day. Also, a fairly high indicator of milk yield for one day of lactation was observed in animals belonging to the line Montvik Chiftain 95679 – 21,02 kg of milk. As a result of the research it was found that the largest term of economic use was characterized by low-breed hybrids with Holstein breed (up to 25%) – 3,63 lactations. This group of animals exceeded the individuals of the remaining groups by 0,21-0,76 lactations. It is worth noting that purebred black-motley individuals also differed by a long period of productive use – 3,42 lactations. Conclusions. Analysis of the impact on productive longevity and indicators of lifetime productivity of the "linearity" factor among abandoned animals in the "Progress-Vertelishki" made it possible to establish the existence of significant differences in the duration of economic use of cows of different linear affiliation. Cows of the Pabst Governera line 882933 – 8,43 lactations, 51535,58 kg of milk and 1914,03 kg of milk fat were distinguished by the greatest period of productive longevity, and also by the highest milk yield and milk fat content. It was established that the crossing of black and white cattle with Holstein breed positively influenced the productive longevity of animals, but on condition that the blood on the improving rock did not exceed 25%. Low-breed hybrids with Holstein breed exceeded the animals of other groups by the duration of their economic use by 0,21-0,76 lactations. Thus, we recommend breeding cows of black and motley breeds in the "Progress-Vertelishki", taking into account the impact on productive longevity and milk productivity of such factors as linearity and bloodiness in Holstein breed.

THE FORMATION OF FACTORY FAMILIES OF UKRAINIAN BROWN DAIRY BREED

2017 ◽  
Vol 54 ◽  
pp. 106-112
Author(s):  
Y. I. Sklyarenko ◽  
T. O. Chernyavska ◽  
L. V. Bondarchuk ◽  
I. P. Ivankova
Keyword(s):  
Milk Production ◽  
Milk Yield ◽  
Milk Fat ◽  
Statistical Processing ◽  
State Enterprise ◽  
Average Lifetime ◽  
Milk Productivity ◽  
Average Value ◽  
Economic Use ◽  
Dairy Breed

The aim of the research was to study milk production of many factory families of Ukrainian Brown dairy breed and study the influence of origin on the indices of milk yield, duration and effectiveness of lifetime use of cows. Method. For research allocated 9 factory families of Ukrainian Brown dairy breed of State Enterprise «Experimental Farm of Institute of Agriculture of Northern East of NAAS» (Valuty 413, Voli 8369, Laymy 8221, Miry 7209, Ryabuhy 9728, Sujety 6091, Tochky 8169, Chubarochky 7743, Shchepky 4344). Among the indicators of the duration and effectiveness of lifetime use of cows was determined the duration (days) of life, economic use of and of lactation, number of lactations for life, lifetime milk yield and yield of milk fat (kg) average lifetime content (%) fat in milk, milk yield (kg) per day of life, economic use and lactation. The coefficient of economic use was calculated (expression in percent) by the proposed method by Pelehaty M. S. et al. In addition were determined (also in percentage) coefficient of lactation and the coefficient of productive use offered by Polupan Y. P. Milk productivity of the animals was evaluated according to the materials of the primary zoo-technical account. Statistical processing of results of studies was conducted by methods of mathematical statistics using the PC. The results of the research. By analyzing the productivity of cows managed to identify a significant level of specificity and differentiation of families according to the indications. Of the 90 cows accounted for the highest productivity of lactation, 28, or 31%, had hopes of 5.0 thousand kg and above. Most of these cows had family, Miry 7209 (67%), Ryabuhy 9728 (57%), Valuty 413 (55%), Shchepky 4344 (50%), less-Sujety 6091 (36%), Chubarochky 7743 (33%), Tochky 8169 (25%), Laymy 8221 (16%), Voli 8369 (10%). Over a long period of economic use and lactation of animals of Valuty 413 family resulted higher in comparison with other families a lifelong yield. The influence of the origin of cows on the indices of milk productivity and effectiveness for lifelong use was discovered. The origin of the family significantly influenced on milk yield for better lactation and milk yield per 1 day of life. Other indicators were not significant according to the origin, although they had high values (from 5.4 to 26.7%). So we can consider it expedient to work with families to improve the duration and effectiveness of lifetime use of cows. Conclusions. The highest average yield for the first lactation animals is characterized by animals of Ryabuhy 9728 family, the content of fat in milk – by animals of Voli 8369 family. Long average duration and a better efficiency is in the life of the cows of Valuty 413 family. The highest average milk yield in one day life had animals of Valuty 413 family. Animals of Valuty 413 family are allocated at the average value of the coefficient of economic use. Optimal average lactation animals belong to the Voli 8369 and Shchepky 4344 families. In some families identified animals that have a lifetime yield of more than 50.0 thousand kg of milk. The influence of the origin of cows on the indices of milk productivity and effectiveness of lifetime use was installed. Between separate parameters of milk production and indicators of the duration and effectiveness of lifetime use of a set of reliable correlation, the magnitude and direction of which are different in animals of different families.

scholarly journals Analysis of dairy productivity of cows of ukrainian brown dairy breed of different genotypes by kappa-casein

2021 ◽  
pp. 74-81
Author(s):  
V. Ladyka ◽  
Y. Sklyarenko ◽  
Y. Pavlenko
Keyword(s):  
Milk Yield ◽  
Milk Fat ◽  
Milk Productivity ◽  
Casein Gene ◽  
Molecular Biological Analysis ◽  
Significant Difference ◽  
Polymerase Chain ◽  
Cattle Breeders ◽  
Dairy Breed

In the herd of cattle of the Ukrainian Brown Dairy breed studies were conducted, the purpose of which was to study the influence of the genotype of cows by kappa-casein on the indicators of their milk productivity. Genotyping of 29 heads of cattle. Determination of the polymorphism of the kappa-casein gene was performed in the genetic laboratory of the Institute of Physiology n.a. Bogomolets of NAS using molecular biological analysis of allele recognition by polymerase chain reaction (PCR) in real time. Allele A had a slightly higher frequency - 0.517 compared to allele B - 0.483 at the locus of the kappa-casein gene, although it was not significant. As a result, the proportions of AA and BB genotypes were high (38 and 34%, respectively). The performed genetic-statistical analysis revealed an excess in the kappa-casein locus of homozygous variants AA and BB and a lack of heterozygous AB. The degree of homozygosity, which is 50.1%, indicates a sufficient level of consolidation in the studied population of cattle. The number of effective active alleles in the kappa-casein locus of cows of the Ukrainian Brown Dairy breed is 1.99, with the maximum value of the level of polymorphism possible at a two-allele locus of 2. A negative heterozygosity test (HT) indicates a lower proportion of actual heterozygotes relative to the proportion of theoretical heterozygotes. The reason for the existing genetic structure of the herd of Ukrainian Brown Dairy breeds by the kappa-casein locus was the use of Swiss cattle breeders, most of which were not evaluated by the genotype of the kappa-casein gene. Studies of the level of milk productivity of cows of different genotypes by kappa-casein in the first lactation did not reveal a significant difference. At the same time, heterozygous (AB) animals were inferior to homozygous (AA and BB) in terms of milk yield, and animals with AA and AB genotypes were preferred in terms of quality. For the best lactation, a significant difference was found in the amount of milk yield and the amount of milk fat. Homozygous animals (AA and BB) significantly (p <0.05) outperformed heterozygous (AB) in milk yield, by 1091 and 922 kg, respectively. Animals with heterozygous AB genotype in terms of the average amount of milk fat were significantly inferior to homozygous AA and BB animals (p <0.05). The small number of experimental animals was one of the reasons for the discrepancy between the results of research and the data of other scientists. Key words: breed, milk yield, fat content, protein content, kappa casein, genotype, allele.

scholarly journals The impact of reproductive capacity indicators of simmental cattle on their milk productivity

2017 ◽  
Vol 19 (74) ◽  
pp. 52-56
Author(s):  
V. V. Fedorovych
Keyword(s):  
Milk Yield ◽  
Milk Fat ◽  
Correlation Coefficients ◽  
Reproductive Capacity ◽  
Optimal Parameters ◽  
Milk Productivity ◽  
Service Period ◽  
Simmental Cattle ◽  
The Impact

It is well known with an increase of milk productivity of cows their reproductive capacity in general became worse. Therefore, it is important to establish optimal parameters of the first age insemination and first calving, duration of service- and inter-calving periods. In view of the above, the purpose of our researches was to study the influence of reproductive capacity parameters of Simmental cows on the formation of milk productivity. The study were conducted on 331 cows in agricultural LLC «Litynskyy» Drohobych raion, Lviv oblast. Evaluation of milk productivity and reproductive capacity of the animals (in 20 years) were performed according to the data of zootechnical accounting for the first, second, third and the best lactations. The differences in rates of milk productivity depending on the parameters of their reproductive capacity were established. Animals with age of first fruitful insemination 18.1–20.0, with first calving age – 27.1–29.0, duration of service period – 101–120 and duration of the inter-calving period – 381–400 days had the best yields and the highest quantity of milk fat. According to the above mentioned indicators of milk productivity they are likely dominated by animals with bigger or smaller indicators of reproductive capacity, but in most cases, this advantage was unreliable. It was found positive highly significant links between indicators of reproductive capacity of cows and milk yield. The highest correlation coefficients were observed between age of first calving and their milk yields, depending on lactation, they were 0.380–0.498, lower – between age of first insemination and milk yield – 0.316–0.456 and the lowest – between service- and inter-calving periods and yield – 0.124–0.335; 0.127–0.331 respectively. The impact of the abovementioned indicators on yield was within 23.13–39.88; 28.63–45.02; 30.98–35.17%, respectively. 

scholarly journals DOCTOR OF AGRICULTURAL SCIENCES Yu. P. POLUPAN – REACHED CREATIVE PRICES AND PRIVACY OF SCIENCE

2019 ◽  
Vol 58 ◽  
pp. 5-18
Author(s):  
T. P. Koval ◽  
A. Ye. Pochukalin ◽  
N. L. Reznykova ◽  
H. D. Ilyashenko ◽  
O. V. Boiko
Keyword(s):  
Milk Yield ◽  
Milk Fat ◽  
Agricultural Science ◽  
Educational Process ◽  
Protein Yield ◽  
Correct Selection ◽  
Sample Population ◽  
Agrarian Policy ◽  
Economic Use ◽  
Dairy Breed

Doctor of Agricultural Science, Professor, Corresponding Member of the National Academy of Agrarian Sciences of Ukraine Yuriy Polupan made a significant contribution to the development of native agricultural science, in particular in the field of breeding, genetics and breeding of agricultural animals of the late XX – early XXI centuries. His efforts laid the foundation and successfully implemented the basic principles and principles of large-scale breeding at a nationwide level of its organization. Yu. P. Polupan was not only the inspirer and author of new Ukrainian dairy breeds and types, but also was and remains the founder of basic modern methods and further directions of work with them. Taking into account above-mentioned, the relevance, practical and cognitive importance of this issue is beyond doubt. The aim of the authors is to carry out a thorough analysis of scientific and methodological developments and achievements of Yu. P. Polupan and to study their influence on modern agrarian science. The authors used historical-chronological, systematic, biographical and source-based methods. The research base covers the scientific works of a talented scientist. One of the foundations of modern breeding theory is the solution of the issues of breeding group consolidation. A wide range of unresolved issues regarding the relevance, genesis of the concept and the essence of consolidation, methods for its assessment by phenotype and genotype, needed to be addressed. Yu. P. Polupan proposed the coefficient of phenotypic consolidation. The scientist tested three variations of the above coefficient, which are based on the use of the coefficient of variability and the standard deviation for each breeding trait. The proposed coefficients have proven to be reliable and convenient for the practical selection and evaluation of different breeding groups. Yu. P. Polupan proposed methodics, that gives a broader picture of the duration and effectiveness of lifetime use of dairy cows and regulates the method of constructing a retrospective sample population for obtaining genetically correct selection estimates. Methodology, using the information on primary zootechnical records of dates of birth, calving and culling, life-time milk yield and milk fat and protein yield and the number of lactations during life provides the calculation of longevity, duration of economic use, lactating, average lifetime milk yield and milk fat and protein yield per 1 day of life, economic use and lactating and coefficients of economic use, lactation and productive use. An important methodological element is the construction of a retrospective sample population for the year of first calving (not culling!) and not later than eight years before the date of the selection analysis. The application of the proposed methodology in the studies of its author, his students and other scholars has proved its effectiveness and correctness. The scientific works of Yu. P. Polupan are also devoted to the development of theoretical and practical bases of estimation of the prepotency and breeding value of sires, prediction of dairy productivity of cows and conservation of the gene pool of farm animals. The scientific interests of the scientist also include grounding of the use of instrumental and visual methods of estimation of the exterior of animals, its ontogenetic and population-genetic laws of formation and relative correlation with the main economic useful traits. The main direction of breeding work, to which Yu. P. Polupan paid attention, is the creation of Ukrainian Red Dairy cattle breed, which until 1998 was proved as holstinized and fat milk intrabreed types, and since 2005 (Order No. 360/75 of the Ministry of Agrarian Policy and Food jointly with the Ukrainian Academy of Agrarian Sciences of Ukraine) – officially approved Ukrainian Red Dairy breed. The innerbreed structure of the Ukrainian Red Dairy breed is represented by the indicated two innerbreed types, the Crimean, Taurian, central and eastern zonal factory types, the Rigel 4939, Geneve 162939, Inganse 343514, Cavalier 1620453, Dairyman 1620274, Chief 1620273-Valiant 1620273, and Maple 1620273 (holsteinized type), Cirrus 16497, Frem 17291, Monarch 18965, Corbitz 16496, Hannibal (fat milk type) and more than 25 factory families. Typical for Yu. P. Polupan is the widespread and correct application of mathematical methods in breeding research using modern (including copyrighted) software and computer technology. In particular, his methodological recommendations for the use of programmable calculators in biometric and zootechnical calculations are one of the most cited scientific works of the author and have been used in the educational process for students of Ukrainian Agricultural Academy (now National University of Life and Environmental Sciences). A number of scientific works by Yu. P. Polupan are devoted to the study of conformational traits, resistance, hormonal status of livestock and economic issues of animal husbandry. Yuriy Pavlovich is characterized by progressive scientific thinking, constant creative search and unremitting energy of researcher. Well-known in Ukraine and far from it not only as scientist, but as well as breeder and Methodist with new creative thinking, Yurii Pavlovich Polupan is able honourably present headed by him institution in Ministry of Education, Agrarian Policy, European Union and FAO.

Milk productivity of cows of Black-and-White breed depending on the part of Holstein blood

2020 ◽  
pp. 16-29
Author(s):  
T. Shishkina ◽  
T. Guseva ◽  
A. Galiullin ◽  
N. Semikova
Keyword(s):  
Milk Yield ◽  
Milk Fat ◽  
Milk Productivity ◽  
Black And White ◽  
Holstein Breed ◽  
Genetic Potential ◽  
White Breed ◽  
New Generation ◽  
Economic Use ◽  
Best Parameters

A retrospective analysis of the dynamics of traits of milk productivity of Black-and-White cows with increased the part of Holstein breed blood has been carried out. Two groups have been formed from the number of culling animals of two adjacent generations: the 1st group (basic generation) with the part of Holstein breed blood of 3/4 (75 %) and the 2nd group with the part of Holstein breed blood of 7/8 (87,5 %) per 35 heads in each. As a result, it has been found that cows with the part of blood of 7/8 had the best indicators of milk productivity for I, II and III lactation. They significantly exceeded the indicators of cows with part of Holstein blood of 3/4 in terms of milk yield and yield of milk fat. The decrease in average daily milk yields for months of lactation in high-blooded cows was lower by 3 %, and the indicator of full-competed lactation was higher by 17,8 %. High-blooded animals have been culled out of the herd more intensively. By the end of the third lactation, the livability of livestock in the 1st group was 100 %, and in the second group – 23 %. The best parameters of productive longevity were distinguished by animals of the basic generation with the part of Holstein breed blood of 3/4. They signifi cantly surpassed of high-blooded animals in terms of longevity and period of productive longevity, respectively, by 1109 (P < 0,001) and 739 (P < 0,001) days, and in terms of lifetime milk yield – by 14392 kg (P < 0,001). The increase of the part of the blood of cows to 7/8 was carried out using purebred producers of foreign selection, the new generation of high-blooded animals had a relatively high genetic potential. However, 7/8-blooded cows of Holstein breed used it only by 53,4 %, which was by 24,3 % (P < 0,001) lower than the base generation. Thus, in the current environments of CJSC “Konstantinovo” high-blooded animals of Holstein breed do not suffi ciently realize the genetic potential, and the increase in productivity is associated with the loss of milk due to the decrease in the duration of economic use of animals. Based on this, we propose at the present stage to suspend the upgrading crossbreeding and return to the using Holsteinized sires domestic selection with the part of Holstein breed blood of 75 to 85 %.

ПРОДУКТИВНОСТЬ КОРОВ ХОЛМОГОРСКОЙ ПОРОДЫ С РАЗЛИЧНОЙ СТЕПЕНЬЮ ГОЛШТИНИЗАЦИИ В УСЛОВИЯХ РЕСПУБЛИКИ КОМИ

2020 ◽  
Author(s):  
S.V. NIKOLAEV ◽  
N.A. SHEMURANOVA
Keyword(s):  
Milk Production ◽  
Milk Yield ◽  
Milk Fat ◽  
Komi Republic ◽  
Fat Content ◽  
Milk Productivity ◽  
Blood Content ◽  
Holstein Breed ◽  
The Third ◽  
Economic Use

Представлены данные о продуктивности коров холмогорской породы и их помесей с различной степенью голштинизации. В период с 2000 по 2019 год установлено, что в условиях Республики Коми коровы с долей кровности более 75 по голштинской породе превосходят чистопородный холмогорский скот по показателям молочной продуктивности и жира в молоке за 1-ю лактацию на 40,3 и 0,63 абс., а в 3-ю на 52,8 и 0,64 абс., соответственно. Однако повышение молочности за лактацию не приводит к увеличению пожизненного производства молока, что обусловлено снижением продолжительности хозяйственного использования. У коров с долей кровности по голштинам более 75 средний возраст выбытия составляет 2,400,11 отела, что в 1,5 раза меньше по сравнению с чистопородными животными.Наибольший пожизненный удой имеют животные с кровностью 50, полученные при скрещивании чистопородного голштинского и холмогорского скота (19850618 кг), а наименьший с кровностью 2550 при разведении помесей в себе (123281134 кг). Продукция молочного жира за все лактации у коров с кровностью 50 составляет 799,625,3 кг, что в 1,9 раз больше аналогичного показателя животных с долей кровности до 25. При учете молочной продуктивности на 1 день жизни животного установлено, что наибольший показатель наблюдается у коров с кровностью 50 7,4 кг молока натуральной жирности, а при пересчете на базисную жирность (3,4) у высококровных (более 75) по голштинской породе помесей (9,00,3 кг), где также наблюдается наибольший показатель производства молочного жира на 1 день жизни 307,310,1 г.The article presents data on the productivity of cows of the Kholmogorskaya breed and their crosses with varying degrees of holsteinische. In the course of studies conducted in the period from 2000 to 2019, it was found that in the Komi Republic, cows with a blood content of more than 75 of the Holstein breed outperform pure-bred Kholmogorsky cattle in terms of milk productivity and fat in milk for the first lactation by 40.3 and 0.63, and in the third by 52.8 and 0.64 respectively. However, an increase in milk yield per lactation does not lead to an increase in lifetime milk production, which is due to a decrease in the duration of economic use: in cows with a Holstein blood ratio of more than 75, the average leaving age is 2.400.11 calving, which is 1.5 times less than in purebred animals. The highest lifetime yield is given to animals with a blood content of 50 obtained by crossing Chi-pedigree Holstein and Kholmogorsky cattle (19850618 kg), and the lowest with a blood content of 2550 when breeding crossbreeds in themselves (123281134 kg). The production of milk fat during all lactation in cows with a blood content of 50 is 799.625.3 kg, which is 1.9 times more than in animals with a blood content of up to 25. When accounting for milk production on a day in the life of an animal is established that the highest milk yield observed in cows with percentage of the blood 50 and 7.4 kg of milk, natural fat content, and at recalculation on basic fat content (3.4) from 75 of the Holstein breed hybrids (9.00.3 kg), which also has the highest production of milk fat on day 1 of life 307.310.1 grams

scholarly journals Features of selection methods in the period of creation of Ukrainian red dairy breed

2019 ◽  
Vol 21 (90) ◽  
pp. 26-31
Author(s):  
T. V. Pidpala ◽  
N. P. Shevchuk
Keyword(s):  
Milk Yield ◽  
Milk Fat ◽  
Subsequent Stage ◽  
General Tendency ◽  
Selection Methods ◽  
Milk Productivity ◽  
Second Stage ◽  
Third Stage ◽  
The Difference ◽  
Dairy Breed

Investigation of the selection methods, used during various stages of the creating the Ukrainian red dairy breed, has an actual significance in the evaluation of the methodology of the breed formation process. A comparative analysis found that the female ancestors of the studied cows according to milk yield significantly differed. With each subsequent stage, bulls-breeders, which were used in the breeding process, prevailed over female ancestors of the previous stage according to the milk productivity. The level of maternity benefit of the parents of the second and third stages was higher than that of the parents of the first stage mothers. However, for fatty milk, the parents of stage I parents had a superiority, compared with the second and third stages. While analyzing the milk yield of mothers of cows, it was found a certain pattern. In particular, the increase in milk in the next stages of the breeding of Ukrainian red dairy breed. According to the productivity of cows-primates, derived from different selection methods, determined by the level of support of female ancestors, the effectiveness of the use of highly heterogeneous selection is established. The difference in comparison with the homogeneous selection for the second and third stages was 462 kg (P > 0.999) and 235 kg of milk, respectively. As for the first stage of  breeding of Ukrainian red dairy breed, the best results were obtained from the use of moderately heterogeneous selection. Its efficiency is confirmed by the highest milk yield of 359 kg (P > 0.95) of milk compared with homogeneous selection. There was a tendency to increase the fat content in milk of animals in the I, II and III stages of the breeding process in a highly heterogeneous selection in comparison with homogeneous selection, the difference was accordingly 0.04%, 0.05% and 0.03%. It should be noted that in the second stage, heterogeneous selection was effective. Along with the abovementioned, there is a general tendency of reduction of fatty milk production in ІІІ stage compared to І and ІІ stages. This is explained by the inclusion in the program of the breeding process of the Ukrainian red dairy breed using the Holstein breeder bulls. Based on the analysis of the data obtained, we have a convincing confirmation of the effectiveness of a highly heterogeneous selection. In the first and second stages of breeding, the prevail of milk fat was 15.4 kg (P > 0.99) and 12.9 kg (P > 0.95) compared to homogeneous selection. Thus, it is logical to increase the level of milk productivity in the studied cows from the first to the third stage of the withdrawal of Ukrainian red dairy breeds with the advantage of using highly heterogeneous selection.

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