scholarly journals Feed behavior and milk productivity in cows of different fattening

2021 ◽  
Vol 23 (95) ◽  
pp. 172-180
Author(s):  
T. V. Polishchuk ◽  
V. V. Bondarenko
Keyword(s):  
Milk Yield ◽  
Milk Productivity ◽  
Behavioral Reactions ◽  
The Third ◽  
Maximum Productivity ◽  
Lactation Curve ◽  
The Stability ◽  
Daily Milk Yield ◽  
Dairy Breed ◽  
Daily Milk

The results of feed behavior and milk productivity in the cows of Ukrainian black-speckled dairy breed of different fattening of the first and second lactations from the first month to the end of lactation are given. The analysis of the herd showed that the highest milk productivity in cows of the first lactation was found in the group of fattening from 3 to 4 points, which was by 9.2 % (P ≥ 0.99) higher, compared to the group of cows with fattening 4 points and more. The milk yield in cows of the second lactation with fattening from 3 to 4 points exceeded the milk yield of cows with fattening 4 points and more by 12.9 % (P ≥ 0.95). The content of fat and protein in milk was higher in the cows with higher fattening, compared to the cows with lower fattening. The highest average daily milk yield was found in cows of the first lactation with fattening from 3 to 4 points. Depending on the month, it was by 5.5–11.7 % (P ≥ 0.95 – P ≥ 0.999) higher, compared to the cows with fattening 4 points and more, while it was by 6.9–10.0 % (P ≥ 0.95 – P ≥ 0.999) higher in cows of the second lactation. The gestation period of cows has a significant effect on the reduction of milk yield. The milk yield of cows in connection with the term of their gestation are reduced by 0.1 kg per day during the second month after insemination, by 0.2 kg per day during the third month, by 0.3 kg per day during the fourth month, by 0.6 kg per day during the fifth month, by 1.0 kg per day during the sixth month, by 1.7 kg per day during the seventh month and by 2.8 kg per day during the eighth month. The analysis of the dynamics of monthly milk yield shows that lactation curves of cows increase from the first day of lactation to its peak, which occurs in the 2nd – 4th month after calving. The lactation curve in the cows with fattening from 3 to 4 points has a higher peak in the 2nd –3d month of lactation, compared to the cows with higher (more than 4 points) fattening. The animals of all groups, except for cows of the second lactation (with fattening 4 and more points) showed the maximum productivity in the 2nd –3d month of lactation; then the lactation curve decreased with different intensity. The index of constancy of lactation and the index of falling milk yield are the important indicators that characterize the stability of lactation curves. The constancy of lactation curves having been determined by I. Johansson-Hansson index was higher in the cows with fattening 4 and more points, compared to the indicator of the cows with fattening from 3 to 4 points. The studies of behavioral reactions have shown that the animals of the first lactation with an average (from 3 to 4 points) fattening consume feed during 208.5 minutes, which is by 17 minutes (P ≥ 0.999) longer than the animals with higher average fattening, and by 14.5 minutes (P ≥ 0.99) longer than the animals of the second lactation.

scholarly journals PRODUCTIVE AND REPRODUCTIVE PERFORMANCE OF FIRST CALVING CROSSBRED COWS

2021 ◽  
pp. 59-68
Author(s):  
Oleksandr Admin ◽  
Natalia Admina ◽  
Irina Filipenko
Keyword(s):  
Milk Yield ◽  
Reproductive Performance ◽  
Somatic Cells ◽  
Crossbred Cows ◽  
The Third ◽  
Holstein Bulls ◽  
Daily Milk Yield ◽  
Dairy Breed ◽  
Daily Milk

The article presents the results of studies of reproductive performance, safety and average daily milk yield of first-calf cows of the Ukrainian Red-and-White dairy breed, obtained from the Montbeliard and Holstein sire bulls in the SE "Gontarivka", Kharkiv region. It was found that the weight at the first fertilization in heifers obtained from bulls of different breeds did not practically differ, and averaged 470 kg. At the same time, the age of the first insemination and calving of the daughters obtained from the Montbeliard bulls was significantly less than of the daughters obtained from the Holstein bulls, which indicates a greater intensity of growth of crossbred heifers. The average daily milk yield of daughters of Montbeliard breed bulls for the first two months of lactation was 1.6 kg and 0.5 kg less than that of their counterparts. In the third month of lactation, the average daily milk yield of first calving cows obtained from Holstein bulls became 0.2 kg less than that of crossbred ones, and later this trend of the advantage in daily milk yield of the daughters of Holstein bulls continued. For 8 months of lactation, the milk yield of the daughters of the Montbeliard bulls was slightly less by 201.4 kg than their peers. There were no significant differences in the content of fat, protein and the somatic cells count.

scholarly journals REPRODUCTIVE CAPACITY, HEALTH AND DAIRY PRODUCTIVITY OF CROSSBREED COWS

2020 ◽  
pp. 47-55
Author(s):  
Oleksandr Admin ◽  
Natalia Admina ◽  
Irina Filipenko
Keyword(s):  
Milk Yield ◽  
Live Weight ◽  
Reproductive Capacity ◽  
Crossbred Cows ◽  
The Third ◽  
Holstein Bulls ◽  
Daily Milk Yield ◽  
Dairy Breed ◽  
Daily Milk

The article reveals the results of reproductive capacity studies, health and average daily milk yield of first-born cows of the Ukrainian Black-Spotted dairy breed, got from Montbeliarde and Holstein breeding bulls in SE “Kutuzivka”, Kharkiv region. It was found that the age of first fertilization in heifers obtained from bulls of different breeds did not differ and averaged 14.0 months. At the same time, the live weight of daughters obtained from Montbeliarde bulls during the first insemination was 10.9 kg higher than that of daughters obtained from Holstein bulls, which indicates a higher intensity of growth of crossbred heifers. Animals of both breeds had the same age of the first calving (23.0 months), but the live weight of the first-born cows differed significantly. Daughters obtained from Montbeliarde bulls had a live weight 27.3 kg higher than their counterparts obtained from Holstein bulls (P> 0.95). According to the results of studying the safety of daughters of bulls of different breeds, it was found that in the first month of lactation in the herd remained 4 % more crossbred cows than their peers obtained from Holstein bulls, in the second - by 7 %, in the third - by 9 % by 10 % (P> 0.9) and with each month of lactation this percentage increased. Also, crossbred heifers came better in sexual hunting. The average daily milk yield of daughters of Montbeliarde bulls in the first two months of lactation was 2.1 kg and 0.6 kg higher than their counterparts. In the fourth month of lactation, the average daily yield of first-born cows obtained from Holstein bulls increased by 2.8 kg compared with crossbred counterparts (P> 0.95) and further the trend of preference for daily milk yield of first-born daughters of Holstein bulls remained.

scholarly journals Comparison of different lactation curve models in Holstein cows raised on a farm in the south-eastern Anatolia region

2008 ◽  
Vol 51 (4) ◽  
pp. 329-337
Author(s):  
Ö. Koçak ◽  
B. Ekiz
Keyword(s):  
Milk Yield ◽  
Goodness Of Fit ◽  
Mean Squared Error ◽  
Exponential Model ◽  
Eastern Anatolia ◽  
Mean Squared Errors ◽  
Squared Error ◽  
Lactation Curve ◽  
Daily Milk Yield ◽  
Daily Milk

Abstract. The objective of this study was to compare the goodness of fit of seven mathematical models (including the gamma function, the exponential model, the mixed log model, the inverse quadratic polynomial model and their various modifications) on daily milk yield records. The criteria used to compare models were mean R2, root mean squared errors (RMSE) and difference between actual and predicted lactation milk yields. The effect of lactation number on curve parameters was significant for models with three parameters. Third lactation cows had the highest intercept post-calving, greatest incline between calving and peak milk yield and greatest decline between peak milk yield and end of lactation. Latest peak production occurred in first lactation for all models, while third lactation cows had the earliest day of peak production. The R2 values ranged between 0.590 and 0.650 for first lactation, between 0.703 and 0.773 for second lactation and between 0.686 and 0.824 for third lactation, depending on the model fitted. The root mean squared error values of different models varied between 1.748 kg and 2.556 kg for first parity cows, between 2.133 kg and 3.284 kg for second parity cows and between 2.342 kg and 7.898 kg for third parity cows. Lactation milk yield deviations of Ali and Schaeffer, Wilmink and Guo and Swalve Models were close to zero for all lactations. Ali and Schaeffer Model had the highest R2 for all lactations and also yielded smallest RMSE and actual and predicted lactation milk yield differences. Wilmink and Guo and Swalve Models gave better fit than other three parameter models.

scholarly journals Bioenergetic and ethological features of the first-calf heifers of different genotypes

2021 ◽  
Vol 4 (1) ◽  
pp. 51-55
Author(s):  
O. O. Borshch ◽  
S. Yu. Ruban ◽  
O. V. Borshch ◽  
V. M. Polishchuk
Keyword(s):  
Milk Yield ◽  
Milk Fat ◽  
First Generation ◽  
Fat Content ◽  
Exchange Energy ◽  
Brown Swiss ◽  
Daily Milk Yield ◽  
Dairy Breed ◽  
Slight Advantage ◽  
Daily Milk

The aim of this work was to study bioenergetic and ethological indicators in crossbred first-calf heifers compared to purebred first-calf heifers. The research was conducted on the first-calf heifers of Ukrainian Black-Pied dairy breed and first-generation crossbreeds obtained as a result of crossing with Brown Swiss breed, as well as, on the first-calf heifers of Ukrainian Red-Pied dairy breed and first-generation crossbreeds obtained as a result of crossing Ukrainian Red-Pied dairy with Montbéliarde breed. The purebred Black-and Red-Pied first-calf heifers prevailed over crossbreed first-calf heifers on the indicator of milk yield for 305 days of lactation by 106.45 and 218.36 kg, respectively. Accordingly, the indicators of average daily milk yield were also higher by 0.35 and 0.72 kg and the indicators of average daily milk yield adjusted by 4 % fat content per 0.15 and 0.16 kg. At the same time, the indicator of average fat content in milk prevailed in crossbreeds of Black-Pied and Brown Swiss breed by 0.08 % compared to purebred Black-Pied breeds, and in Red-Pied crossbreeds with Montbéliarde breed by 0.16 % compared to purebred Red-Pied breeds. The purebred Black-Pied first-calf heifers had an advantage by 2.04 MJ compared to crossbreeds, while the Red-Pied first-calf heifers had a slight advantage by 0.06 MJ compared to crossbreed first-calf heifers on the indicator of daily cost of exchange energy (EE). The purebred Black-and Red-Pied first-calf heifers had higher cost of exchange energy allocated with milk compared to crossbreed first-calf heifers by 0.42 and 0.82 MJ. They also had higher cost of exchange energy rates for heat products by 0.79 and 0.25 MJ. According to the energy index indicator, purebred Black - and Red-Pied first-calf heifers prevailed over crossbreeds first-calf heifers by 0.16 and 0.07 %, respectively. The same trend was observed in relation to the productive index indicator. The purebred Black-and Red-Pied first-calf heifers had a slight advantage by 0.001 and 0.002 kg adjusted by 4 % of milk fat content per 1 MJ. According to the indicators of daily behavioral reactions, no special differences between a purebred and crossbreed were found.

scholarly journals On designing the average lactation curve at the ascending phase

1962 ◽  
Vol 34 (1) ◽  
pp. 162-168
Author(s):  
Aarne Mäkelä
Keyword(s):  
Dairy Cows ◽  
Milk Yield ◽  
Lactation Period ◽  
Lactation Curve ◽  
The Mean ◽  
The Individual ◽  
Daily Milk Yield ◽  
Daily Milk

Comparisons are made between different methods to find the peak production (maximum daily milk yield) and methods to design the average lactation curve at the ascending phase in dairy cows. It was noted that in order to determine the height and location of the maximal producing capacity of a cow in a known lactation period, it is preferable to choose the peak production as a mean of three subsequent best days. It was also noted that the usual methods for drawing the average lactation curves do not give a true picture of the height and location of the peak. The author suggests a method for determining the average lactation curve at the ascending phase by using the averages of both milk productions and times involved in reaching the peak and known fractions (e.g. 1/8, 1/4, 1/2, 3/4, and 5/4) of it. In this lactation curve the peak production is the mean of the peaks of individual cows, and the time involved in reaching it is the mean of the durations of the ascending phases of the individual cows.

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.

scholarly journals ESTIMATION OF HOLSTEIN BREED BULLS BY DAIRY PRODUCTIVITY OF THEIR DAUGHTERS

2020 ◽  
Vol 59 ◽  
pp. 26-34
Author(s):  
S. L. Voitenko ◽  
O. V. Sydorenko
Keyword(s):  
Milk Yield ◽  
Phenotypic Variability ◽  
Milk Productivity ◽  
Paternal Origin ◽  
Black And White ◽  
Holstein Breed ◽  
The Third ◽  
Holstein Bulls ◽  
The Difference ◽  
Dairy Breed

The scientific community has shown that the genetic improvement of dairy cattle depends on many genotypic factors, including paternal ancestry and lineage. With this in mind, the purpose of our research was to evaluate the Holstein bulls of black-and-white and red-and-white suits of different lines for the milk productivity of their daughters. The research was carried out on the basis of primary breeding records of 10 breeding herds of Ukrainian Black-and-White Dairy breed, 3 – Ukrainian Red-and-White Dairy breed and one – Ukrainian Red Dairy breed, which are subordinated to NAAS. Cows of the studied breeds has divided into groups according to lineage and paternal origin. Studies have revealed a significant differentiation of milk yield of cows of the first and highest lactation not only of one breed, but also of linear affiliation and paternal origin. It was found that the yield of the first lactation in cows of the Ukrainian Black-and-White Dairy breed varied from 3211 kg (Damir 7100354042) to 7884 kg (Dzhokus 113080315) of milk. Noteworthy are the daughters of Dzhokus 113080315, from which 9143 kg of milk were obtained for higher lactation, Polyarsten 342347941 and Manteno 344222859 – 8248 kg and 8290 kg of milk, respectively. The significant influence of paternal origin on the yield of Ukrainian Black-and-White Dairy breed cows of the first and higher lactation (31.0%; P > 0.999) and 37.3% has been proved; P > 0.999). The influence of genealogical formation on the milk productivity of cows was significant and amounted to 10.8% for the first lactation, higher – 10.2%. Some of the first-born Ukrainian Black-and-White Dairy breed has characterized by high milk productivity, which steadily increased until the third and higher lactation. The yield of cows of the Ukrainian Red-and-White Dairy breed of the first lactation varied from 5414 kg (Dialog 2009) to 6689 kg (Larets 6177), testifying to better homogeneity of herds in terms of milk productivity compared to the Ukrainian Black-and-White dairy breed. The highest yield of the third and highest lactation – 7626 kg, had cows-daughters of the bull Roman 660886883 Starbuck line 352790. The variability of milking cows of Ukrainian Red-and-White Dairy breed of the first and highest lactation by 25.0% and 15.2%, respectively, was due to the influence of the father offspring and to a lesser extent – belonging to the line. A very high (6517–8013 kg) realization potential of milking cows of the Ukrainian Red Dairy breed was established, but it also depended on the paternal origin and linear affiliation. The highest yield of the first lactation were shown by the daughters of the bull Belisar 365235897, Dzhorin 114414759 and Tumpi 112367468, who produced 8013 kg, 7323 kg and 7170 kg of milk, respectively. In cows of this breed it was found that yield increased with increasing serial number of lactation, with the third and higher lactation cows produced more than 8000 kg of milk per lactation, and the daughters of bull Dzhorin 114414759 – more than 9000 kg. The influence of the bull on the milk productivity of the first-born cows of the Ukrainian Red Dairy breed (16.7%; P > 0.999) is almost three times higher than this linear affiliation. Significant phenotypic variability of milk productivity of cows of different breeds of half-sisters by the father is established. The advantage of the daughters of the bull Belisar 365235897 of the Ukrainian Red Dairy breed on milking of the first lactation over the representatives of the Ukrainian Red-and-White Dairy breed was 1932 kg (p < 0.001). The difference in milk yield of the first lactation of the half-sisters by the father, the bull Konbeo 579810507 was 1007 kg (p < 0.01), and Roman 660886883 – 717 kg. Thus, a significant phenotypic variability of milk productivity of cows of different breeds of half-sisters by father was established. At the same time, regardless of the breeder, the cows of the Ukrainian Red Dairy breed were characterized by higher milk yield of the first lactation in comparison with the Ukrainian Red-and-White Dairy breed.

scholarly journals LEVEL OF FEEDING AND THE DYNAMICS OF MILK YIELDS OF AYRSHIRE BREED OF COWS AFTER FIRST CALVING

2021 ◽  
Vol 246 (2) ◽  
pp. 81-87
Author(s):  
O.V. Zelenina ◽  
◽  
E.V. Ermoshina ◽  
M.A. Gerasimova ◽  
◽  
...  
Keyword(s):  
Milk Yield ◽  
Dry Matter ◽  
Nutritional Value ◽  
Lactation Period ◽  
Milk Productivity ◽  
Ayrshire Breed ◽  
Digestible Protein ◽  
Daily Milk Yield ◽  
Daily Milk ◽  
Pronounced Peak

Evaluation of the nutritional value of feed mixtures for lactation periods of the Ayrshire first-calf breed showed that in the first period there is an excess of dry matter and easily digestible protein in the diet, and a lack of sugar in all periods. The consumption of energy and nutrients for the synthesis of 1 kg of milk was optimal. For 305 days of lactation, an average of 7653 kg of milk per cow was obtained after the first calving, and the maximum daily milk yield was recorded in the second month of lactation. The research of lactation curves showed that highly productive cows have a more pronounced peak of milk yield in the first lactation months; the level of milk productivity remains high up to 9-10 months of the lactation period.

scholarly journals Somatic cells count in milk and its relation with productive traits in dairy cows

2021 ◽  
Vol 13 (4) ◽  
pp. 417-424
Author(s):  
I. Marinov ◽  
D. Dimov ◽  
T. Penev
Keyword(s):  
Milk Yield ◽  
Somatic Cells ◽  
Phenotypic Correlation ◽  
Milk Productivity ◽  
Mean Values ◽  
Lactating Cows ◽  
Productive Traits ◽  
Daily Milk Yield ◽  
Cattle Farms ◽  
Daily Milk

Abstract. The aim of the study was to determine the dependence between Test Day (TD) milk productivity traits and somatic cells count (SCC) in milk and also the influence of the factors: farm, parity and TD recording season of Holstein cows. The survey included a total of 484 lactating cows from 8 cattle farms in Bulgaria. A total of 3473 TD records including data on TD milk yield, fat %, protein % and SCC in milk were used. A statistically significant effect of the farm, recording season, and SCC on TD milk yield, fat % and protein % was reported. The highest TD milk yield was reported in spring (22.42 kg), followed by winter (21.95 kg). In winter and autumn were reported higher mean values for TD fat (3.77 and 3.84%) and TD protein (3.38 and 3.40%) content in milk. At the highest SCC – above 999 000 cells/ml, the highest average daily milk yield – 24.1 kg and the lowest fat (3.48%) was reported. With the highest and positive statistically significant value was the phenotypic correlation between TD milk yield and SCC (0.21). The correlation with TD fat % was statistically significant, with negative value (- 0.07).

ПРОЯВЛЕНИЕ ФУНКЦИОНАЛЬНЫХ СВОЙСТВ ВЫМЕНИ ГОЛШТИНСКИХ КОРОВ АВСТРАЛИЙСКОЙ СЕЛЕКЦИИ В УСЛОВИЯХ ЮГА РОССИИ

2019 ◽  
pp. 23-25
Author(s):  
V.A. KARATUNOV ◽  
I.N. TUZOV
Keyword(s):  
Functional Properties ◽  
Milk Yield ◽  
Test Group ◽  
Control Group ◽  
Lactation Period ◽  
The Third ◽  
Group I ◽  
Probiotic Preparation ◽  
Daily Milk Yield ◽  
Daily Milk

Изучены функциональные свойства вымени коров голштинской породы австралийской селекции, выращенных с использованием повышенных норм выпойки молока и добавлением пробиотического препарата целлобактерин . В сельхозпредприятии Краснодарского края, на потомках импортного скота голштинской породы австралийской селекции, завезенного в 2008 году. Для проведения опыта от нетелей линии Рефлекшн Соверинг 198998 получили телят и сформировали 4 группы подопытных телочек по 16 голов (n64): I контрольная, II, III, IV опытные. Животные были аналогами по происхождению, живой массе и возрасту. Различие между группами заключалось в технологии их выращивания. Телки контрольной группы выращивались по технологии принятой в хозяйстве, а животных II, III и IV опытных групп кормили опытными рационами. В состав кормовых рационов телочек опытных групп входило неодинаковое количество кормов животного происхождения и пробиотический препарат. После отела было установлено, что коровы опытных групп превосходили сверстниц I контрольной группы по обхвату вымени на 0,83,0 см. По 3 лактации различия по изучаемым промерам подопытных групп составили 1,33,5 см. При изучении промеров глубины вымени по 1 и 3 лактации установлена такая же закономерность по их увеличению, как и по обхвату вымени. Наиболее высокие суточные удои установлены у коров III группы 26,2 кг, превосходство над сверстницами контрольной группы по этому показателю составило 4,3 кг, или 19,6. По скорости молокоотдачи животные контрольной группы уступали сверстницам опытных групп. Индекс вымени во всех группах был достаточно высоким, и составлял по 1й лактации 44,846,2, по 3й 45,347,4. Суточные удои коров по 3 лактации возросли. Доказана зависимость между величиной вымени и удоем за лактацию. Интенсивное выращивание подопытных телок с добавлением пробиотического препарата положительно отразилось на увеличении у них промеров вымени, когда они стали коровами, что способствовало повышению удоев с 1по 3 лактации. Установлено, что коровы опытных групп по 1 лактации превышали сверстниц контрольной на 1,44,3 кг. По 3 лактации превышение составило 1,45,4 кг. Установлено, что коровы опытных групп превосходили сверстниц I контрольной группы по функциональным свойствам вымени.Functional properties of udders of Holstein cow breed of Australian selection grown with the use of increased norms of milk feeding and the addition of Cellobacterine probiotic preparation were studied. Research was carried out on the basis of agricultural enterprise located on the territory of Krasnodar region using the offspring of Hostein cow breed of Australian selection imported in 2008. 4 groups of test cow calves consisting of 16 animals (n64) received from Reflection Sovereign bred heifers 198998 were formed to carry out the experiment. There was group I which was used as control, and groups II, III, and IV which were used as test groups. Animals had similar origin, live weight and age. The groups were differentiated by growth technology. Cow calves from the control group were grown according to the traditional technology, and animals from group II, III, and IV received experimental feed. Nonuniform quantity of feeds of animal origin and probiotic preparation were included in feed rations of cow calves from test groups. After calving it was found that test cows were superior to animals from control group I in udder circumference by 0.83.0 cm. During the third lactation period the differences according to the studied measurements of test groups amounted to 1.3 3.5 cm. Analysis of udder depth measurements during the first and the third lactation period showed the same tendency towards increasing as during the analysis of udder circumference. The highest daily milk yield was registered in the cows from group III 26.2kg, the superiority to the cows from the control group in this parameter amounted to 4.3 kg or 19.6. Milk flow speed of control group animals was inferior to that of the cows from test groups. Udder index was rather high in all of the groups and during the first lactation period amounted to 44.846.2, the third 45.3.47.4. Daily milk yield increased during the third lactation period. The dependence of the size of the udder on milk yield per lactation was proved. Intensive growth of test cow calves with the addition of probiotic preparation positively influenced the increase in udder measurements when they became grown cows, which facilitated the increase in milk yield from the first to the third lactation period. It was found during the first lactation period test group cows were superior to the cows from the control group by 1.4 4.3 kg. The increase amounted to 1.4 5.4 kg during the third lactation period. It was also found that test group cows were superior to the cows from the control group in terms of udder functional properties.

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