The correlation between dairy productivity traits in the herd of holsteinized cows of Black and White breed

2020 ◽  
pp. 21-27
Author(s):  
N. Fedoseeva ◽  
V. Usov ◽  
D. Shepinyev
Keyword(s):  
Milk Yield ◽  
Mass Fraction ◽  
Milk Productivity ◽  
High Positive Correlation ◽  
Positive Correlation ◽  
Black And White ◽  
Mass Fractions ◽  
White Breed ◽  
Coeffi Cients ◽  
Correlation Coeffi

It is important to study the nature of the association between the characteristics of milk productivity in breeding work with cattle. The purpose of the researches was to study the correlation between the traits of milk productivity in the herd of holsteinized cows of Black-and-White breed. A signifi cant low negative correlation r=–0,108 (P < 0,01) and r=–0,125 (P < 0,001) has been found between the traits of milk yield and the mass fractions of fat and protein for the 1st lactation. It should be noted that for the 1st, 2nd lactations and on average for the fi rst three lactations between the mass fractions of fat and protein a reliable average positive correlation has been determined from r=0,512 (P < 0,001) to r=0,565 (P < 0,001), for the 3rd lactation a high positive correlation has been found r=0,613 (P < 0,001). It has been found for all three lactations that milk yield had high, positive and reliable correlation coeffi cients with milk fat yield from r= +0,958 (P < 0,001) to r=+0,974 (P < 0,001) and milk protein yield from r=+0,995 (P < 0,001) to r=+0,997 (P < 0,001). This can serve as an indicator of possible eff ective selection based on these characteristics. In order to determine the infl uence of sires on the content of mass fractions of fat and protein in the milk of their daughters, the degree of correlation of these characteristics has been studied. Correlation coeffi cients between milk yield and fat mass fraction were negatively low from r=–0,139 (P < 0,01) to r=–0,280 (P < 0,05). The correlation between milk yield and protein mass fraction has been found from the average negative value of r=–0,372(P < 0,05) to the positive low indicator – r=+0,234 (P < 0,001). The correlation coeffi cients have been obtained for milk productivity indicate the individual characteristics of individual sires.

Milk productivity of cows depending on their origin on genealogical line

2021 ◽  
pp. 21-30
Author(s):  
M. V. Voronov ◽  
N. A. Fedoseeva ◽  
T. N. Pimkina ◽  
O. V. Gorelik
Keyword(s):  
Milk Yield ◽  
Mass Fraction ◽  
Positive Association ◽  
Specific Weight ◽  
Milk Productivity ◽  
Black And White ◽  
Holstein Breed ◽  
Significant Difference ◽  
White Breed ◽  
The Difference

The improvement of cattle of Black-and-White breed by mating of maternal stock with the sires of Holstein breed continues at the present time. Therefore, breeding in pedigree farms for the production of milk is carried out including the use of Holstein lines. The purpose of the work was to assess the milk productivity of cows of Black-and-White breed, with a high proportion of blood in Holstein breed, depending on their linear origin. In the herd of the breeding farm where the research has been carried out, the lines Reflection Sovereign 198998 and Wes Ideal 933122 occupy the dominant position in terms of the specific weight of cattle, followed by the line Montwick Chieftain 95679. The difference in milk yield between groups of cows of different lines was from 3,0 to 354 kg or 0,04 to 4,6 %. The highest milk yield was shown by the first-calf heifers of the line Wes Ideal 933122 – 7787±123,21 kg. In the milk of the first-calf heifers of the line Pabst Governor 882933 compared with herdmates of other lines the increased content of fat and protein has been noted,. The difference in the mass fraction of fat in milk was significant in favor of Pabst Governor 882933 cows (P ≤ 0,01–0,001). There was also the significant difference in the mass fraction of fat in milk between the groups of cows of the lines Montwick Chieftain 95679, Reflection Sovereign 198998 and Wes Ideal 933122 in favor of the latter at P ≤ 0,05–0,01. A definite association between milk yield and the mass fraction of fat in milk has not been established. There is a pattern of the positive association between the mass fraction of fat and the mass fraction of protein in milk and it is clearly seen that with the increase in the mass fraction of fat in milk, there is the increase in the mass fraction of protein.

scholarly journals EFFICIENCY OF DIFFERENT ASSESSMENT METHODS OF BREEDING BULLS OF BLACK-AND-WHITE BREED BY THE OFFSPRING QUALITY

2021 ◽  
Vol 250 ◽  
pp. 172-177
Author(s):  
E. I. Anisimova E. I. ◽  
◽  
P. S. Katmakov ◽  
A. V. Bushov ◽  
◽  
...  
Keyword(s):  
Milk Yield ◽  
Milk Fat ◽  
Land Reclamation ◽  
Hydraulic Engineering ◽  
Milk Productivity ◽  
Offspring Quality ◽  
Black And White ◽  
White Breed ◽  
Ideal Line

The paper presents results of assessing black-and-white bulls by the quality of the offspring with application of different methods. The evaluation of bulls was carried out with application of the “daughter-mother” method in the conditions of Volzhsky Research Institute of Hydraulic Engineering and Land Reclamation. The valuation showed that the bulls Aist 7 and Muscat 8 increased milk yield of daughters, in comparison with mothers, by 951 and 486 kg, or by 26.7 and 12.9%. The rest of the servicing bulls reduced milk yield of the offspring by 46 - 1019 kg (1.1 - 24.7%). When assessing the bulls using the “daughterpeer” method, the highest milk productivity was shown by the descendants of Sazan 25 and Aist 7 of Vis Back Ideal line, which surpassed their peers in milk yield by 273 and 419 kg, or by 3.8 and 5.7%, respectively. The producers Snop 57 (his 17 daughters had average milk yield of 4224 kg for the first lactation with milk fat of 3.80%) and Muscat 8 (with an average milk yield of daughters of 4254 kg , milk fat - 3.83%) are also of significant value for the breeding work of this farm. According to the assessment results, the producer Aist 7 was assigned to the breeding category of A1 of milk yield improvers. Bulls Sazan 25 and Muscat 8 are also rated as daughters’ milk yield improvers and are categorized as A2 and A3. All bulls evaluated by comparing daughters to the breed standards are improvers of daughters’ milk yield (+ 454-1860 kg).

scholarly journals Productivity of fi rst-calf cows of different sire lines

2019 ◽  
Vol 49 (4) ◽  
pp. 58-64
Author(s):  
A. G. Kolchev
Keyword(s):  
Protein Content ◽  
Milk Yield ◽  
Lactation Period ◽  
Milk Productivity ◽  
Black And White ◽  
Holstein Breed ◽  
White Breed ◽  
High Level ◽  
Daily Milk Yield ◽  
Daily Milk

The results of the study of milk productivity and lactation rates of fi rst-calf cows are presented. The research into fi rst-calf cows of black-andwhite Holstein breed, belonging to sire lines of Wis Ideal 1013415 and Refl ection Sovereign 198998 was conducted in 2018 in Novosibirsk region. The number of cows under study was 64, the period of the study covered 305 days of lactation. Monitoring of milk production, milk fl ow intensity, fat and protein content was carried out monthly. The research materials were analyzed for groups of cows depending on their sire line and productivity for single and daily milk yield, fat and protein content, and dynamics of milk ejection for the fi rst 3 minutes of milking. The highest daily milk yield in both lines was observed in the second month of lactation. In the fourth and fi fth months of lactation, the average daily milk yield of Refl ection Sovereign cows was signifi cantly higher (р < 0.001) than that of their peers of the Vis Ideal line, by 1.3 kg. During the lactation period, the productivity of the Vis Ideal and Refl ection Sovereign cows was almost the same: milk yield – 8296 and 8220 kg, fat content – 4.02 and 4.06%, protein – 3.36 and 3.35% and milk fl ow intensity – 2.70 and 2.78 kg/min, respectively. In the second and third months of lactation, cows of both lines had a decrease in the content of fat, protein and intensity of milk fl ow with a gradual increase in these indices in the fourth and fi fth months of lactation. First-calf cows of the black-and-white breed of Canadian selection of different sire lines showed a high level of milk productivity and proved to be suitable for further breeding work.

Influence of the age at the first insemination and live weight on milk productivity of cows

2020 ◽  
Vol 50 (2) ◽  
pp. 57-63
Author(s):  
L. L. Petrukhina ◽  
S. L. Belozertseva
Keyword(s):  
Milk Production ◽  
Milk Yield ◽  
Live Weight ◽  
Reproductive Function ◽  
Reproductive Capacity ◽  
Milk Productivity ◽  
Black And White ◽  
Irkutsk Region ◽  
White Breed

The materials of the long-term (2008–2018) research into the reproductive function of cattle of the black-and-white breed of Baikal type in Irkutsk region are presented. The influence of the age at the first insemination and live weight on cows’ milk productivity, lifelong productivity and productive longevity was studied. The experiment was conducted on the basis of materials from the breeder-farm for breeding cattle of Baikal type on the groups of cows of different ages: up to 14–20 months and older. Cows inseminated at 16 months (7917 kg) had the best milk yield in the first lactation. The largest milk yield was obtained from inseminated cows with live weight of 401-410 kg. Milk production of these heifers was 7902 kg in the first lactation, 8792 kg – in the second and 8710 kg – in the third. It was revealed that age of cows and their live weight at the first successful insemination had a positive effect on the lifelong productivity and productive longevity of cows. Cows whose age at the first successful insemination was 15 or 16 months had a longer duration of productive use (productive life span of animals was 2561–2558 days, respectively). The highest lifelong productivity (34379–34585 kg) was obtained from the cows of this group. The economic efficiency of lifelong milk production was determined depending on the age of the first insemination. The highest lifelong milk productivity was obtained from cows, which were first inseminated at the age of 15–16 months. The largest revenue from sales of additional products was also received from the cows of this group (366,058–370,480 roubles per head). The results obtained allow to develop effective methods for increasing reproductive capacity of cattle.

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 %.

ДИНАМИКА МОЛОЧНОЙ ПРОДУКТИВНОСТИ ПЕРВОТЕЛОК ЧЕРНО-ПЕСТРОЙ ПОРОДЫ В ЗАВИСИМОСТИ ОТ СПОСОБА СОДЕРЖАНИЯ И СЕЗОНА ОТЕЛА

2019 ◽  
Author(s):  
S.A. OVODKOV ◽  
Ah.S. DELYAN
Keyword(s):  
Milk Yield ◽  
Group Iv ◽  
Milk Productivity ◽  
Group Iii ◽  
Black And White ◽  
Agricultural Enterprise ◽  
Group I ◽  
White Breed ◽  
Group Ii ◽  
Calving Season

Изучено влияние способа содержания и сезона отела на лактационную деятельность голштинизированных коров-первотелок черно-пестрой породы. Исследования проведены в условиях сельскохозяйственного предприятия Тверской области на 4 группах животных: I группа — привязное содержание, летние отелы; II — привязное содержание, зимние отелы; III — беспривязное содержание, летние отелы; IV — беспривязное содержание, зимние отелы. Максимальные удои у коров I, III и IV групп были получены на 3-м мес лактации, II — на 2-м. Удой в I, II, III и IV группах составил, соответственно, 7714, 8717, 7682 и 7930 кг молока за 305 дней лактации. Удой коров за первые 3 мес в % к удою за 305 дней лактаций: I группа — 33,7%, II — 35,8, III — 34,4, IV — 35,9%. Максимальный суточный удой в I группе равнялся 30,8 кг, во II — 36,5, в III —29,7 и в IV — 35,3. Среднесуточный удой за 305 дней лактации в I группе составил 21,2 кг, во II — 23,6, в III группе — 19,4 и в IV группе — 21,7. Коэффициент постоянства лактации в I II III и IV группах равнялся 93,2, 94,2, 89,2 и 98%, соответственно. Независимо от способа содержания более высокие показатели молочной продуктивности и устойчивости лактационной деятельности имели коровы, отелившиеся в зимний период.The influence of the method of keeping and calving season on the lactation activity of Holstein cows-heifers of black-and-white breed is studied. Studies were conducted in the agricultural enterprise of the Tver region on 4 groups of animals: I group — tethered content, summer calving; 2 — tethered content, winter calving; III — loose content, summer calving; 4 — loose content, winter calving. Maximum milk yield in cows I and III and IV groups were obtained on the 3rd month of lactation, the second — at the 2nd. Milk Yield in I, II and III and in IV groups made, respectively, 7714, 8717, 7682 and 7930 kg of milk for 305 days of lactation. Milk yield of cows for the first 3% to milk yield for 305 days of lactation: group I-33,7%, II — 35,8, III-34,4, IV-35,9%. The maximum daily yield in group I was 30.8 kg, in group II — 36.5, in group III — 29.7 and in group IV — 35.3. The average daily yield for 305 days of lactation in group I was 21.2 kg, in group II — 23.6, in group III — 19.4 and in group IV — 21.7. The coefficient of persistence of lactation in I, II, III and IV groups was equal to 93.2 per cent, 94,2, to 89.2 and 98%, respectively. Regardless of the method of maintenance, cows calving in winter had higher indicators of milk productivity and stability of lactation activity.

Realization of the potential of cows of Holstein breed of different generations in terms of productive traits

2021 ◽  
pp. 28-35
Author(s):  
O. V. Nazarchenko ◽  
A. N. Rusanov
Keyword(s):  
Milk Yield ◽  
Mass Fraction ◽  
First Generation ◽  
Live Weight ◽  
High Productivity ◽  
Black And White ◽  
Holstein Breed ◽  
Genetic Potential ◽  
White Breed ◽  
Productive Traits

Breeding work with dairy cattle in the Kurgan region is aimed at breeding animals that combine the adaptive properties and valuable traits of cattle of Black-and-White breed with a high proportion of genes of Holstein breed. Such animals are characterized by high productivity and suitability for intensive technology of their housing. The purpose of the research was to determine the indicators of milk productivity of first-calf heifers of different generations of Holstein breed, imported to the pedigree farms of the Kurgan region, as well as to determine the degree of realization of the genetic potential of animals. Scientific research has been carried out in the herd of CJSC “Glinka” (Kurgan), where highly productive cattle of Black-and-White and Holstein breeds are bred. The subject of research was the first-calf heifers of the imported Holstein breed of German selection of different generations, as well as the herdmates of Black-and-White breed. It has been found that the realization of the genetic potential for milk yield in Holstein cows of German breeding was higher and amounted to 76,4 %, in cows of Black-and-White breed 69,9 %. The highest milk yield for 305 days of lactation has been observed in the second generation of Holstein heifers 8905 kg, which exceeded the milk yield of herdmates of the second and third generations by 113 kg or 1,26 % and 174 kg or 1,95 %, respectively. The mass fraction of fat in German Holsteins of different generations ranged from 3,99 to 4,21 % (P < 0,001), while the mass fraction of protein in the milk of first-calf heifers varied slightly in the range from 3,18 to 3,20 %. In terms of live weight, the animals of the third generation slightly exceeded the herdmates of the 1st and 2nd generations by 19 kg or 3,25 % and 20 kg or 3,43 %, respectively. The largest profit has been received from the first-generation first-calf heifers of Holstein breed of German selection, where the level of profitability of milk production was 50,7 %, which was higher than that of the herdmates of the second and third generations by 3,9 and 7,9 %, respectively.

Dynamics of milk productivity of cows of Black-and-White breed by lactations

2020 ◽  
pp. 35-42 ◽  
Author(s):  
N. Kostomakhin ◽  
O. Voronkova ◽  
M. Gabedava ◽  
E. Ermoshyna
Keyword(s):  
Milk Yield ◽  
Dairy Farming ◽  
Milk Productivity ◽  
Genetic Progress ◽  
Breeding Stock ◽  
Black And White ◽  
White Breed ◽  
White Cattle ◽  
Kaluga Region

The age of cow use is of big importance for the practice of dairy farming, since earlier culling of cows leads to a lack of milk, and later culling leads to the decrease in genetic progress. The purpose of the researches was to determine the dynamics of milk productivity of cows of Black-and-White breed by lactations. The researches have been carried out in the OJSC Breeding Farm “Oktyabrsky” in the Ferzikovsky district in the Kaluga region, where cattle of Black-and-White breed are bred. The object of researches was the breeding stock of Black-and-White cattle that had been lactating for five lactations. It has been found that the increase in milk yield occurred from I to IV lactation. For example, first-calf heifers had 6154,9 kg of milk yield and were statistically significantly inferior to cows of II lactation by 242,8 kg (P < 0,001) or by 3,9 %. The superiority of cows of III lactation over first-calf heifers in milk yield was 466,2 kg (P < 0,001) or 7,6 %. The maximum differences in milk yield between first-calf heifers and cows IV lactation were 704,8 kg (P < 0,001) or 11,5 %. Cows of V lactation also significantly outperformed of fi rst-calf heifers in milk yield by 381,6 kg (P < 0,01) or 6,2 %, but their milk yield was lower than that of cows during III and IV lactation. It has been revealed in the course of research that cows of all the studied lactations were characterized by sufficiently high milk productivity for cattle of Black-and-White breed. There was the increase in milk yield with the age of animals. The increase in milk yields dynamically occurs till IV lactation, and then their decrease is observed.

Performance profile of cows of ural type at different level of milk productivity

2020 ◽  
pp. 22-28
Author(s):  
O. Leshonok ◽  
V. Gridin
Keyword(s):  
Dairy Cattle ◽  
Milk Yield ◽  
The Body ◽  
Body Type ◽  
Milk Productivity ◽  
Black And White ◽  
Effi Ciency ◽  
Dairy Cattle Breeding ◽  
White Breed ◽  
And Performance

One of the tasks of selection and breeding work with dairy cattle is to assess the body type of cows in breeding herds. Body type plays an important role in the effi ciency of the use of animals in dairy cattle breeding only harmoniously developed cows when creating optimal conditions for housing and feeding, can show high milk productivity as well as they are less prone to the risks of premature culling for non-selective reasons. The selection of fi rst-calf heifers of Ural type of Black-and-White breed with milk productivity above 7000 kg of milk in breeding organizations of the Sverdlovsk region has been carried out. Materials on 2150 cows with average milk yield of 8622 kg of milk with the content of fat in milk of 3,90 % and protein – 3,20 % have been presented. With an increase in milk yield in fi rst-calf heifers there is a statistically signifi cant improvement in constitutional and performance features. Heifers have good parameters for the development of the body in height, which vary from 7,7 to 8,5 points, strong enough and deep body (fortress: 4,7–5,3 points; depth: 5,7–7,5 points), with well-defi ned milk forms (5,4–6,8 points). The udder of animals is characterized by a bath-shaped form (attachment density: 5,1–5,3 points; length of the front parts: 5,1–6,3 points) and an expressed escutcheon (width: 5,0–6,0 points; height: 7,8–8,3 points; central ligament: 4,9–5,3 points). For obtaining animals of dairy direction productivity with milk yield 7000 kg milk and more should make selection on the next parts of performance: rump high ≥ 7,0 points (from 145 centimeters); the depth of breast ≥ 6,0 points (not less 83 centimeters), length front share udder ≥ 5,0 points (from 21 centimeters), width rear share udder ≥ 5,0 points (not less 16 centimeters), express of dairy forms, central ligament ≥ 5,0 points.

Milk productivity of cows of different ages under the conditions of the dairy complex «Ryzhovo»

2020 ◽  
pp. 3-13
Author(s):  
G. Rodionov ◽  
N. Kostomakhin ◽  
L. Tabakova ◽  
G. Tabakov ◽  
A. Olesyuk ◽  
...  
Keyword(s):  
Protein Content ◽  
Milk Yield ◽  
Milk Fat ◽  
Somatic Cells ◽  
Fat Content ◽  
Milk Productivity ◽  
Black And White ◽  
White Breed ◽  
Breeding Mode ◽  
Favorable Conditions

When production of milk in industrial volumes it is necessary to monitor all processes aff ecting its quantity and quality: animal feeding, breeding, mode and method of milking, herd reproduction, labour organization in the dairy complex, creating favorable conditions for cows that correspond to physiological characteristics. The dairy industry continues to impose higher and higher demands on milk, so in addition to improving the milk productivity of cows, we must not forget about the quality of the product. The issues of milk yield of cows, fat and protein, yield of milk fat and protein, somatic cells in milk of cows of Black-and-White breed for a number of lactations in terms of the dairy complex “Ryzhovo” have been considered in the article. It has been noted be researches that in the 1st and 2nd lactations milk yield of animals was 10 621 and 10 553 kg, respectively. The highest productivity of the cows has reached in the 3rd and 4th lactations 11 365 and 11 655 kg, respectively, after which, in the 5th lactation there was a decrease in milk yield to 10 592 kg. When considering fat content for diff erent lactations, positive dynamics up to the 4th lactation inclusive has been revealed. Thus, the fat content in milk for the 1st lactation was 3,61 %, for 2nd – 3,68 %, for 3rd – 3,93 % and 4th – 4,00 %. In the 5th lactation fat content decreased to 3,78 %. It has been found when calculating the yield of milk fat in experimental cows for lactation that up to the 4th lactation inclusive the indicator increases: for the 1st lactation received 383 kg of milk fat, 2nd – 388 kg, 3rd – 447 kg, 4th – 466 kg, and for the 5th lactation, the decrease in the index to 400 kg. At the same time the yield of milk fat for the 5th lactation exceeds the 1st and 2nd. The protein content in the milk of cows of diff erent ages during the fi rst four lactations increases from 3,18 to 3,43 %. Then, in the 5th lactation there is the decrease in protein content to 3,35 %, however, this fi gure is second only to the highest the 4th lactation. It has been established that before the 3rd lactation the number of somatic cells in milk increases, then in the 4th lactation this indicator decreases (151,25 thousand/cm3 ) and in the 5th lactation reaches a maximum (242,27 thousand/cm3).

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