PRODUCTIVE FEATURES OF COWS OF DIFFERENT LINES

2020 ◽  
Vol 5 (86) ◽  
pp. 177-182
Author(s):  
A.S. Kharitonova ◽  
◽  
◽  

Dairy cattle breeding is a structure forming branch of agriculture. Increasing the intensity of productivity in the dairy cattle breeding requires improvement of animals, which can be achieved through selection and breeding work. Therefore, one of the most important tasks in dairy cattle breeding is constant work to improve the productive and breeding qualities of breeds, types, lines and crosses of the livestock. Further increase in the productivity of a herd of dairy cows depends largely on improving the genotype of animals, increasing the hereditary potential of dairy productivity of cows. This problem can be solved, first of all, both by intrabreed selection, and on the basis of interbreeding. The aim of the study was to study the productive features of various lines of Holstein cows. The research was conducted on animals in the farm of LLC "Yupiter" in the Bolkhov district of the Orel region. As a result of this study, it was found that the control group Wes Back Ideal 1013415 had the lowest indicators of live weight for all indicators except live weight at birth. Cows of the Wes Back Ideal 1013415 line surpass in milk productivity for 305 days of lactation the first-born cows of other lines by 57,606 and 409,888 kg. The highest indicators of milk and specific fat content coefficients for the first lactation were in cows of the control group of the Wes Back Ideal 1013415 line – 1841,145 and 60.006 kg, respectively.

2016 ◽  
Vol 52 ◽  
pp. 6-12 ◽  
Author(s):  
M. V. Gladiy ◽  
G. S. Kovalenko ◽  
S. V. Priyma ◽  
G. A. Holyosa ◽  
A. V. Tuchyk ◽  
...  

The main goal of dairy breeds selection should be improving breeding and productive qualities of animals under modern conditions. The majority of farms, using native breeds to produce milk, has created optimal conditions for keeping and feeding, selection and matching, growing of replacements etc. Further improvement of created native dairy breeds for economically useful traits occurs at total use of purebred Holstein bulls (semen) of foreign selection. In order to realistically assess milk productivity (milk yield, fat content in milk and fat yield) of Ukrainian Black-and-White and Red-and-White Dairy cows should be conducted a comparative analysis of Holstein cows under the same conditions of feeding and keeping. It was established that Ukrainian Red-and-White Dairy cows were characterized by the highest milk yields for 305 days of all lactations, taken into account, the among three investigated breeds. Their milk yield during the first lactation was 5933 kg of milk, during the second – 6393 kg, the third – 6391 kg and during higher lactation – 6650 kg. Ukrainian Black-and-White Dairy cows were second by milk yield (except for the second lactation), during the first lactation – 5932 kg of milk, the third – 6462 kg and higher – 6541 kg, and Holstein cows were third, during the first lactation – 5794 kg of milk, the second – 6381 kg, the third – 6335 kg and higher – 6469 kg. The fat content was almost the same and varied within 3.49-3.58% in milk of Ukrainian Red-and-White Dairy cattle, 3.50-3.60% in milk of Ukrainian Black-and-White Dairy cattle and 3.50-3.56% in Holsteins’ milk. The difference between the breeds was within 0.01-0.04%. All the investigated breeds had predominance in fat yield for three lactations over standards of these breeds: Ukrainian Red-and-White Dairy cows from 75.1 to 93.4 kg, Ukrainian Black-and-White Dairy cows – 75.1-89.0 kg respectively and Holstein cows – 41.9-60.2 kg. It was found different level of positive correlation between milk yield and fat yield in all the cases and high correlation (r = 0.604-0.921, P < 0.001) in five cases (41.7%) Negative correlation coefficients indicate that selection of animals to higher milk yield in the herd will decrease the second trait – fat content in milk. Positive and highly significant correlation between milk yield and fat yield indicates that selection of cows in the herd to higher milk yields will increase fat yield. It was revealed that bulls were among the factors impacted the milk productivity (milk yield, fat content, fat yield) of three investigated breeds. So, the force (η²x) of father’s impact on milk yield was15.4-47.9%, fat content – 22.0-43.4% and fat yield – 14.9-47.7% taking into account a lactation and a breed. The force of lines impact (η²x) was second; it was on milk yield 6.1-24.5%, fat content – 4.1-17.1 and fat yield – 5.8-23.5%. The force of breeds impact (η²x) was last; it was on milk yield 0.3-2.9%, fat content – 0.2-0.3% and fat yield – 0.6-2.7%. So, the comparative studies of milk productivity of Ukrainian Red-and-White and Black-and-White Dairy cattle with Holsteins indicate that under similar conditions of feeding and keeping, these native breeds can compete with Holstein cattle. The milk yield for 305 days of higher lactation was 6650 kg of milk in Ukrainian Red-and-White Dairy cows, 6541 kg in Ukrainian Black-and-White Dairy cows and 6469 kg in Holsteins. It was found the inverse correlation r = -0.025-0.316 between milk yield and fat content in milk in most cases. Selection and matching of animals in the herd should be carried out simultaneously on these traits. It was found positive repeatability of milk yields between the first and second, the third and higher lactations (rs = 0.036-0.741), indicating the reliability of forecasting increase in milk productivity during the next lactations in all herd. Bulls have the greatest impact (η²x) on milk productivity among the factors taken into account: milk yield – 15.4-47.9%, fat content in milk – 22.0-43.4% and fat yield – 14.9-47.7%.


2019 ◽  
Vol 57 ◽  
pp. 60-67
Author(s):  
G. D. Іlyashenko

Dairy cattle breeding is one of the leading livestock sectors whose purpose is to ensure the production of high quality dairy raw materials in volumes meeting the scientifically grounded standards of state food security and expanding the export potential of the agrarian sector. The purpose of our research was to study the status and prospects of dairy cattle breeding in the Kirovograd region. Material and methods of research. The research was carried out on the basis of the electronic database of breeding goals (including 2312 cows), official statistics and estimates of cattle of various breeds that are involved in the production of dairy direction in the breeding farms of the Kirovograd region. The analysis used zootechnical and statistical methods. The calculations were carried out using the software package "STATISTICA-6,1" Results. According to the research (2001–2018), the cattle population in the Kirovograd oblast decreased by a factor of 2.6. Thus, as of January 1, 2018, its number constituted 96.3 thousand heads in all categories of farms, 53.1 thousand of them were cows, the number of which also decreased by 2.4 times. Specific gravity of cattle population of farms remains significant and makes up 72.7%, and 80.6% in the livestock of cows. The largest number of cows of agricultural enterprises declined significantly. Thus, as of January 1, 2018, their number was 10.3 thousand goals, which is 4.7 times less than in the same period of 2001. In the households there is also a tendency for a permanent reduction of cows, the difference is, respectively, 37.0 thousand heads or 46.4% The development of dairy cattle breeding is characterized by two opposite tendencies: reduction of livestock of cows and increase of their productivity. Thus, in agricultural enterprises in 2010, compared to 2000, hopes per cow increased by 2.5 times, in all categories of farms by 1.8 times. In 2017, the increase in dairy costs in agricultural enterprises compared to 2010 amounted to 60.0% in farms of all categories 12.2%. The researches found that in the agricultural enterprises of the oblast as of January 1, 2018 there are 26256 head of cattle, including 10281 cows. The breeding part of the existing cows is 3.013 heads, 29.3% of the total number located in 10 breeding farms. The analysis of the genealogy structure showed that the experimental population of cows belongs to 18 lines and related groups of which the most numerous Chifa 1427381 – 20.4%, Starbuck 352790 – 20.1%, Henev 1629391 – 18.6% , Eleusis 1491007 – 11.2%, Family 267150 – 10.8%. Among the indicated lines, the lowest level of milk productivity was first-born cows. The 1491007, the milk of milk for 305 days of lactation was 4466 ± 99.8 kg, and the milk fat was 168.2 ± 6.5 kg. Analogues l Starbak 352779 was characterized by the highest milk productivity, its level was 5696 + 98.8 kg and 224.9 ± 9.7 kg, respectively. The difference in stomach was 1230 ± 140.4 kg (td = 10.2) and at the release of milk fat 56.7 ± 5.28 kg (td = 10.2) at P < 0.001. However, the latter were markedly less service life (125 against 168 days) and logically higher reproduction rate compared to other lines. An analysis of the intensity of the formation of live weight of young animals has been established for its highest growth in heifers of controlled herds in the period from 9 to 12 months. Thus, in animals of Ukrainian red breed, the growth rate of live weight during this period was 75 kg, Ukrainian red-shrimp 61 kg, Ukrainian black-and-white 73 kg, Holstein 76 kg. Accordingly, during this period, the average daily gain of live weight of young breeds of these breeds was 833 g; 678 g; 811 g, 835 g. The sharp fluctuations of average daily increments during growing periods, first of all, testify to the unequal conditions of growing and feeding young animals than the breed differences. In general, as a result of the analysis of the formation of live weight of heifers, a significant level of phenotypic variability was observed, which confirms sufficient genetic resources and preconditions for selection on the given sign. Therefore, proceeding from the above, in the long run, selection work for breeding improvement of cattle breeding farms of the Kirovograd region should be conducted in accordance with certain promising directions according to groups of breeds. Conclusions. A very important factor in the growth of milk production in the Kirovograd region is high-yield pedigree cattle. The main task on the way of bringing breeding cases in dairy farming to the modern level is the introduction of computer breeding records in breeding farms. This will allow to estimate in the near future bulls-pedigrees, which were used in the past in these farms, to allocate among them complex improvers for precisely the specific conditions and maximally attract them for reproduction. On the other hand, a reliable clogging of poor quality in the genetic sense of sperm production, which leads to negative consequences, will be posed. When establishing the assessment of the breeding value of bulls and developing a single plan of breeding and breeding work in the region, one can proceed to the next step of improving breeding and breeding business, introducing a progressive method of raising the breeding value of animals of large-scale breeding. As a result, the profit from the breeding of highly productive animals, well adapted to specific conditions, will significantly exceed the costs. At the same time, the proposed measures will allow the breeding business to be brought up to the modern world level and stimulate highly productive cattle breeding.


2017 ◽  
Vol 54 ◽  
pp. 65-74 ◽  
Author(s):  
R. V. Milostiviy ◽  
L. V. Karlova

Score productive longevity of dairy cattle is an important scientific and practical importance. It is known that among genetic factors, significant effects of linear affiliation of their parents. It is demonstrated that effective breeding subject to strict compliance with the screening system, selection and evaluation of animal breeding values reported by domestic and foreign authors. The purpose of the work was to study the influence of linear membership on productive longevity and lifetime milk productivity of Holstein cattle of European breeding. Studies carried out on cows Holstein breed using data management system dairy cattle breeding "Orsek". Found that targeted breeding work and selection in a herd of imported European cattle breeding Holstein using information systems selection bulls MAR company CRI meets the latest requirements of the ICAR and Subcommittee on the unified international assessment of manufacturers (Interbull) contributed to a change in the number of separate lines among the cows first generation. This has led to an increase in the percentage of manufacturers lines daughters Valiant 1650414.73, Starbuc  352790.79, as well as Cheef 1427381.62. on the basis of the desired economic-useful signs. It is established that the value of productive longevity of cows depending on linear conditioning averaged 3.1 ... 3.9 lactations. By this measure, the daughter of Starbuck's lines were superior animals Holstein breed other lines by the number of lactations: Chevalier – 0.1 or 2.6% (td = 0.25; P ≤ 0.95); Bell – 0.5 or 14.7% (td = 0.95; P ≤ 0.95); Valiant – at 0.8 or 25.8% (td = 1.52; P ≤ 0.95); Eleveyshn – 0.8 or 25.8% (td = 1.91; P ≤ 0.95); Cheef – 0.5 or 14.7% (td = 1.27; P ≤ 0.95). It has been proven that milk productivity and milk quality of the imported Holstein cows and their offspring of domestic generation attributable to linear. The highest lifetime yield of Holstein breed cows had Starbuck lines, which outnumbered their import contemporaries other lines: Chevalier – 2818.7 kg or 8.2% (td = 0.46; P ≤ 0.95); Bell – 3404.5 kg or 10.1% (td = 0.61; P ≤ 0.95); Valiant – 5553.8 kg or 17.5% (td = 1.26; P ≤ 0.95); Eleveyshn – 7368.9 kg or 24.6% (td = 1.78; P ≤ 0.95); Cheef – 5500.5 kg or 17.3% (td = 1.38; P ≤ 0.95). The father's genotype had a significant impact on the quality of the milk. It should be noted that cows Starbuck's line differed relatively high fat content in the milk. By this measure the superiority of animals this line over imported cows other lines: Chevalier – 0.5% (td = 2.38; P ≥ 0.95); Bell – 0.2% (td = 1.38; P ≤ 0.95); Valiant – 0.6% (td = 2.78; P ≥ 0.95); Eleveyshn – 0.4% (td = 3.23; P ≥ 0.99); Cheef - 0.2% (td = 1.44; P ≤ 0.95). However, large protein content in milk cows belonging to different lines of Bella, who on this indicator had superiority over animals other lines: Chevalier – 0.2% (td = 1.03; P ≤ 0.95); Starbuck – 0.1% (td = 0.59; P ≤ 0.95); Valiant – 0.5% (td = 2.31; P ≥ 0.95); Eleveyshn – 0.2% (td = 1.85; P ≤ 0.95); Cheef – 0.1% (td = 1.15; P ≤ 0.95). It should be noted that only the cows first generation Valiant lines and Eleveyshn marked positive relationship between life and the content of cows in milk fat and protein (r = +0.17 ... +0.40), which may indicate the possibility of holding breeding work to improve these symptoms. So in the breeding work it is advisable to use manufacturers of prominent lines that combine high breeding value on productivity of daughters with improving effect on the duration of their use. The results of the research show that the effective use of well-known manufacturers and imported Holstein breed brood in breeding work with dairy cattle of Ukraine. However, shortening the productive use of animals in conditions of industrial technology should serve as a stimulus to study and find ways to solve this problem.


Author(s):  
И.Н. ЯНЧУКОВ ◽  
А.Н. ЕРМИЛОВ ◽  
А.А. ЕРМИЛОВ

Для решения поставленных перед молочным скотоводством задач АО «Московское» по племенной работе» на базе своего обособленного подразделения образовало Сслекционно-репродуктивный центр (СРЦ) «Мосплемэлита» с целью воспроизводства племенного материала мирового класса, а также животных редкой генеалогической принадлежности в условиях нашей страны через использование метода трансплантации эмбрионов. Для его эффективного функционирования на аукционах в Европе были закуплены доноры и реципиенты, не вакцинированные против инфекционного ринотрахеита, вирусной диареи и ряда других болезней и имеющие высокие племенные оценки. Доноры осеменялись спермой выдающихся производителей (1—3 рейтинг в стране происхождения) и быков-улучшателей редкой генеалогической принадлежности. Часть доноров (n=17) после накопления от них установленного запаса эмбрионов отелились и закончили 1 лактацию. В среднем за 305 дней их удой составил 12062 кг, при содержании жира 4,35% и белка — 3,49%. Оценка типа телосложения оказалась равной 86,71 балла, что соответствует категории «отлично». Перерасчет молочной продуктивности коров-доноров по методике, принятой в США (за 365 дней полновозрастной лактации), показал, что в среднем продуктивность этих животных достигнет 18766 кг молока с содержанием жира 4,41% и белка 3,52%. Приведенные параметры значительно выше «Генетического базиса» США (12733 кг — 3,84% — 3,10%) и показателей, установленных «Планом селекционно-племенной работы с крупным рогатым скотом АО «Московское» по племенной работе» на период до 2025 года» для коров селекционной группы «матери быков» (за наивысшую лактацию 14000 кг, 4,40%, 3,40% и 85 баллов за тип телосложения). Воспроизведенные в условиях СРЦ «Мосплемэлита» бычки имели характеристики в том числе по геному (оценка ВИЖ им. Л.К. Эрнста) значительно выше (по продуктивности матерей на 15%, оценке отцов на 111% и геномной оценке пробандов на 61%) аналогичных параметров ремонтных животных, закупленных предприятием на аукционах в Европе в 2020 году по цене 20,0 тыс. евро и выше. Полученные результаты позволяют утверждать, что в условиях нашей страны вполне возможно воспроизводство конкурентоспособного племенного материала. To solve the tasks set for dairy cattle breeding, JSC "Moskovskoye" for breeding work"on the basis of its separate subdivision formed the Breeding and Reproductive Center (BRC) "Mosplemelita" in order to reproduce world-class breeding material, as well as animals of rare genealogical affiliation in our country through using the method of embryo transplantation. For its effective functioning, donors and recipients who had not been vaccinated against infectious rhinotracheitis, viral diarrhea and a number of other diseases and had high breeding scores were purchased at auctions in Europe. Donors were inseminated with sperm of outstanding producers (1—3 rating in the country of origin) and improver bulls of rare genealogical affiliation. Some donors (n=17), after accumulating an established stock of embryos from them, calved ansrcd completed 1 lactation. On average, for 305 days, their milk yield was 12062 kg, with a fat content of 4.35% and protein — 3.49%. The body type score was 86.71 points, which corresponds to the "excellent" category. Recalculation of the milk productivity of donor cows according to the method adopted in the USA (for 365 days of full-age lactation) showed that the average productivity of these animals will reach 18766 kg of milk with a fat content of 4.41% and a protein content of 3.52%. The above parameters are significantly higher than the "Genetic basis" of the United States (12,733 kg — 3.84% — 3.10%) and the indicators established by the "Plan for selection and breeding work with cattle of JSC" Moskovskoye "for breeding work" for the period up to 2025 "For cows of the selection group" mother of bulls "(for the highest lactation 14000 kg, 4.40%, 3.40% and 85 points for the body type). The gobies reproduced in the conditions of the Mosplemelita SEC had characteristics in terms of genome (assessment of the L.K. Ernst VIZH) significantly higher (in terms of maternal productivity by 15%, assessment of fathers by 111% and genomic assessment of probands by 61%) similar parameters of repair animals purchased by the company at auctions in Europe in 2020 at a price of 20.0 thousand euros and more. The results obtained make it possible to assert that in the conditions of our country it is quite possible to reproduce competitive breeding material.


Author(s):  
N. Kostomakhin ◽  
M. Petrova ◽  
Yu. Chernigov ◽  
O. Kurchenkova

Breeding work aimed at improving the body type of cattle is of a big importance for improving the efficiency of dairy cattle breeding, since harmoniously built animals are characterized by high milk productivity, long-term economic use and are in significant demand on the market of breeding products. Linear evaluation of the body type of dairy cattle has become very popular and is widely used to assess the appearance of animals in many countries with highly developed cattle breeding (USA, Canada, Netherlands, Germany, etc.). Many researchers use a linear evaluation method for evaluating the body type of cows of different origins obtained both by crossbreeding with improving breeds, and for evaluating sires on the quality of offspring. In the Omsk region scientific research on the use of linear evaluation of the body type of daughters of sires has been carried out in order to further assess their breeding qualities. The purpose of the research was to study the conformation features of first-calf heifers have been obtained from different sires evaluated using the method of linear evaluation of body type. The experimental part of the work has been carried out in breeding farms in the Omsk region: JSC “Razdolnoe” of the Russian-Polyansky district and JSC “Azovskoye” of the Azov district. It has been established that the sire directly determines the conformation features of the daughters, which in turn affects their milk productivity, health and ease of calving.


Author(s):  
E.E. Melnikova ◽  
◽  
S.N. Kharitonov ◽  
I.N. Yanchukov ◽  
L.V. Ionova ◽  
...  

2022 ◽  
Vol 354 (11-12) ◽  
pp. 40-42
Author(s):  
N. A. Shcherbakova ◽  
A. Yu. Kozlovskaya

ООО «PskovAgroInvest» pays great attention to the rearing of replacement young animals. The rate of increase in the intensity of raising heifers on the farm meets the standards and requirements of pedigree dairy cattle breeding. The farm uses stage-bystage rearing of replacement young stock, taking into account its age. A group approach to rearing young animals. Replacement heifers use natural and cultivated pastures in the summer. In recent years, the age of replacement heifers at the first insemination has noticeably decreased and approached the norm. At the same time, the live weight of animals at the first insemination increased, which in 2020 amounted to 460 kg, which opens up prospects for a further decrease in the age of the first insemination. This became possible due to an increase in the average daily growth in cultivation, which regularly increases every year and amounts to 756 g in 2020, which is 98 g, or 14.9%, more than in 2016. From table 2 it follows that in recent years, at all age periods, replacement heifers had a live weight exceeding the breed standard, which is 250 kg at 10-month-old, 290 kg at 12-month-old and 390 kg at 18-month-old age. At the same time, an increase in the average live weight of the replacement livestock is observed every year. So, in 2020, the value of the indicator was 278 kg at the age of 10 months, 331 kg at the age of 12 months, 463 kg at the age of 18 months, which is 16 kg, 54 kg and 75 kg, or 6.1%, 19, 5% and 19.3%, more than in 2016, respectively. Thus, the analyzed period allows us to conclude about the effectiveness of zootechnical work to improve the rearing of replacement heifers on the farm, but it must be continued in order to reduce the age of first insemination to 15–17 months with the optimal live weight of the livestock.


2020 ◽  
Vol 3 ◽  
pp. 156-163
Author(s):  
Askar Baymuhanov ◽  
◽  
Galina Guseva ◽  

In terms of transition to loose housing, the issue of herd management is becoming especially acute. The aim of the study is to substantiate the efficiency of milk production using innovative technologies based on 7 model dairy farms containing 100 or more dairy cows. The relevance of the research topic is in the analysis of the effective application of the “Herd Management” system through digital technologies and intensive feeding for raising young animals of various groups. The economic effect of the introduction of innovative technologies in these economic entities is shown, which made it possible to determine the potential for their development, to assess the results of conducting production processes. The authors note the importance for dairy industry of the transfer and adaptation of technologies for automation of technological processes for production of livestock products in dairy cattle breeding in Kazakhstan, which will contribute to the achievement of goals and indicators as part of the implementation of the State Program on Development of the Agroindustrial Complex of the Republic of Kazakhstan for 2017-2021. Examples of model farms, where high financial indicators were obtained on the basis of calculations, are presented. It was revealed that the development of dairy cattle breeding and the increase in productivity of cows largely depends on intensification of forage production, organization of proper care and maintenance of livestock, the breed and quality of raised heifers intended for reproduction. It was determined that in the experimental groups, when optimizing the feed rations of young cattle, the increase in live weight of the studied farm animals increases.


2016 ◽  
Vol 52 ◽  
pp. 31-36
Author(s):  
V. S. Kozyr ◽  
A. D. Hekkiyev

It was proved that features of lactation curves of cows should be considered at developing breeding programs in dairy cattle breeding, contributing to an objective assessment of a genotype and thus, use of genetic and mathematical methods would increase probability of predicting performance for dairy herd.


2020 ◽  
pp. 13-14
Author(s):  
Ayub Yu. Aliev ◽  
◽  
Karine A. Karpushchenko ◽  
Abdulgamid A. Aliev ◽  

The data obtained as a result of the use of a mineral lick briquette Amirasol R-Z in the diets of dairy cows are analyzed in the article. Authors studied the influence of the mineral lick briquette Amirasol R-Z on the biochemical parameters and milk productivity of dairy cows. The experiments were carried out on dairy cows of the red steppe breed in the conditions of the plain zone of the Republic of Dagestan. Two groups of dairy cows were formed (10 heads in each). According to the scheme of the experiment, the control group received a basic diet, the experimental group received the basic diet and the mineral lick briquette Amirasol R-Z. Each cow of the experimental group was given individually one lick briquette in a dose of 4 kg during 90 days. Researches and data processing were carried out according to generally accepted methods. Blood was taken from the experimental animals from the jugular vein for laboratory studies at the end of the experiment. The milk productivity and fat content of milk were taken into account by carrying out monthly control milk yields. At the same time, the positive effect of a lick briquette on the biochemical parameters of blood has been proven: reserve alkalinity, glucose, macro- and microelements, the activity of the copper-containing enzyme ceruloplasmin and milk productivity. A significant increase in the blood of glucose concentration by 12.93% in the cows of the experimental group, the level of reserve alkalinity by 17.66%, the concentration of macroelements and microelements, milk productivity by 5.7%, milk fat by 2.77% compared with the control group. The use of the mineral lick briquette Amirasol R-Z in the diets of dairy cows helps to prevent macro- and microelementoses, increase milk productivity, milk fat content, nonspecific immunity and obtain of healthy calves.


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