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Journal articles on the topic 'Speed of milking'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Sitkowska, B., D. Piwczyński, J. Aerts, and M. Waśkowicz. "Changes in milking parameters with robotic milking." Archives Animal Breeding 58, no. 1 (2015): 137–43. http://dx.doi.org/10.5194/aab-58-137-2015.

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Abstract. The aim of this present study is to describe changes occurring during the milking of cows in various periods following the introduction of an AMS (automatic milking system). The following cow milking parameters were analysed: milkings per cow per day, milking yield, milking speed and milking duration. An increase in milk yield in AMS barns has been found to be possible, but it is affected by a number of factors related to cow milking performance. Milk yield was observed to gradually grow with time after the installation of the robots. Older cows in their third and fourth lactations a

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2

Edwards, J. P., N. Lopez-Villalobos, and J. G. Jago. "Increasing platform speed and the percentage of cows completing a second rotation improves throughput in rotary dairies." Animal Production Science 52, no. 10 (2012): 969. http://dx.doi.org/10.1071/an12071.

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This study sought to improve milking efficiency in rotary dairies by modelling the effect of increasing platform speed on the percentage of cows requiring multiple rotations to complete milking, i.e. ‘go-around’ cows, and cow throughput. Milking data, including 376 429 milking event records from 44 530 cows, were collected from 62 commercial farms with rotary dairies in New Zealand. Average rotation time, a function of platform speed and rotary size, was 10.0 ± 1.5 min, mean milking duration 383 ± 129 s, and mean milk yield 11.9 ± 3.8 kg per milking session. Milking duration data were normalis

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3

Vermaak, P., I. M. Petzer, and J. Karzis. "Effects of milking machine settings and teat liners on bovine udder health." South African Journal of Animal Science 52, no. 4 (2023): 421–32. http://dx.doi.org/10.4314/sajas.v52i4.02.

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The purpose of milking machines is to harvest milk at an optimum speed while maintaining cow comfort and preserving teat defence mechanisms against the invasion of mastitis pathogens, thus making machine settings critical in dairy herds. The various settings and combinations for milking machines were reviewed to enable operators to optimize them to preserve teat canal integrity and minimize mastitis. All databases of Web of Science and relevant websites were used to document machine settings and teat liners. All vacuum levels in milking systems need to be monitored. In addition, liners, milk y

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4

Szentléleki, Andrea, Krisztina Nagy, Kálmán Széplaki, Károly Kékesi, and János Tőzsér. "Behavioural Responses of Primiparous and Multiparous Dairy Cows to The Milking Process over an Entire Lactation." Annals of Animal Science 15, no. 1 (2015): 185–95. http://dx.doi.org/10.2478/aoas-2014-0064.

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Abstract The objective of this study was to examine associations between milking temperament, parity and milk production traits in primiparous and multiparous dairy cows. Twenty-one primiparous and nineteen multiparous Holstein Friesian cows were involved in the investigation on a Hungarian dairy farm. Cows’ stepping behaviour, milk yield and average milking speed were recorded once a month over an entire lactation, during morning milking. Milking temperament was scored by direct human observation on a 5-point-scale (1=very nervous, 5=very quiet) during udder preparation and milking. Multiparo

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5

Banos, G., and E. B. Burnside. "Genetic evaluation of Canadian dairy bulls for milking speed with an animal model." Canadian Journal of Animal Science 72, no. 1 (1992): 169–72. http://dx.doi.org/10.4141/cjas92-020.

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Bull proofs for milking speed were computed under an animal model for five dairy breeds. Data were subjective scores on first lactation cows from all milk recording agencies across Canada. There were 1411 Holstein, 171 Ayrshire, 85 Jersey, 31 Guernsey, and 17 Brown Swiss bulls that received official evaluations. Bull proofs were expressed on a linear scale from 1 to 9, where 9 designated bulls with the fastest milking daughters. The biological significance of these proofs was investigated using 6965 weekly cow records of total milking time, average flow rate, and peak flow. Data were on 119 Ho

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6

Morales-Piñeyrúa, Jéssica Tatiana, Aline Cristina Sant’Anna, Georgget Banchero, and Juan Pablo Damián. "Dairy Cows’ Temperament and Milking Performance during the Adaptation to an Automatic Milking System." Animals 13, no. 4 (2023): 562. http://dx.doi.org/10.3390/ani13040562.

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Adaptative responses of cows to an automatic milking system (AMS) could depend on their temperament, i.e., cows with certain temperament profiles could be able to cope more successfully with the AMS. The relationships between dairy cows’ temperament, behaviour, and productive parameters during the changeover from a conventional milking system (CMS) to an AMS were investigated. Thirty-three multiparous cows were classified as ‘calm’ or ‘reactive’ based on each of the temperament tests conducted: race time, flight speed (FS), and flight distance, at 5, 25, and 45 days in milk at CMS, then the co

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7

Aerts, Joanna, Dariusz Piwczyński, Heydar Ghiasi, Beata Sitkowska, Magdalena Kolenda, and Hasan Önder. "Genetic Parameters Estimation of Milking Traits in Polish Holstein-Friesians Based on Automatic Milking System Data." Animals 11, no. 7 (2021): 1943. http://dx.doi.org/10.3390/ani11071943.

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The automatic milking system (AMS) provides a large amount of information characterizing the course of each milking cow, which is not available in the conventional system. The aim of our study was to estimate heritability and genetic correlations for milk yield (MY), milking frequency (MF), and speed (MS) for 1713 Polish Holstein-Friesian primiparous cows milked in barns with an AMS. Daily heritability indicators estimated using second-order Legendre polynomials and Random Regression Models showed high variation during lactation, ranging 0.131–0.345 for MY, 0.153–0.322 for MF, and 0.336–0.493

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8

Andriy, Paliy, Aliiev Elchyn, Nanka Alexander, et al. "Identifying changes in the technical parameters of milking rubber under industrial conditions to elucidate their effect on the milking process." Eastern-European Journal of Enterprise Technologies 3, no. 1 (111) (2021): 21–29. https://doi.org/10.15587/1729-4061.2021.231917.

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Many years of experience in the operation of milking machines show that milking rubber was and remains a short-lived and unreliable link in the technological process of machine milking. During operation, rubber quickly loses its strength and elastic properties, becomes stiff and less elastic, deforms, and changes its shape. The purpose of this study is to identify changes in the technical parameters of milking rubber under industrial conditions in order to establish their impact on the milking process. The obtained results could make it possible to rationally choose the milking rubber for teat

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9

ILAHI, H., E. MANFREDI, P. CHASTIN, F. MONOD, J. M. ELSEN, and P. LE ROY. "Genetic variability in milking speed of dairy goats." Genetical Research 75, no. 3 (2000): 315–19. http://dx.doi.org/10.1017/s001667230000450x.

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The present investigation deals with the genetic variability of milking speed, measured as the volume of milk collected during the first minute of milking (MD1), and its association with dairy traits. Data originated from 2589 lactations of 1421 Alpine goats, sired by 93 bucks, measured between 1985 and 1997 at the Moissac Goat Experimental Station (Lozère, France). Two genetic analyses were carried out. Firstly, a polygenic model was used to estimate genetic and phenotypic parameters among milking speed and dairy traits using a multiple-trait animal model. Secondly, segregation analysis was u

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10

Sewalem, A., F. Miglior, and G. J. Kistemaker. "Short communication: Genetic parameters of milking temperament and milking speed in Canadian Holsteins." Journal of Dairy Science 94, no. 1 (2011): 512–16. http://dx.doi.org/10.3168/jds.2010-3479.

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11

Wieland, Matthias, Paul Douglas Virkler, and Anja Sipka. "Risk Factors of Forced Take-Off in Dairy Cows Milked Three Times per Day in A Rotary Milking Parlor: A Case Control Study." Animals 11, no. 10 (2021): 2883. http://dx.doi.org/10.3390/ani11102883.

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The aims of the research were to: (1) describe a protocol for the identification of cows that are subjected repeatedly to a forced retraction event at the end of milking; (2) study risk factors of repeated forced take-off (RFTO); and (3) assess the average milk flow rate at which the forced retraction event occurred. In a retrospective study, we collected milk flow data over a 1-week period from a 4300-cow dairy with a rotary milking parlor and a thrice-daily milking schedule. We identified 109 cases of RFTO and 2467 controls. A multivariable logistic regression model revealed associations of

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12

KIRSANOV, VLADIMIR V. "Developing the algorithm of adaptive regulation of the platform rotation speed of the carousel conveyor milking parlour." Agricultural Engineering, no. 1 (2024): 18–24. http://dx.doi.org/10.26897/2687-1149-2024-1-18-24.

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The productivity of the carousel (rotary) milking parlour depends on the number of milking units and the controllable rotation cycle of the platform. Continuous regulation of the platform rotation speed depending on the milking cycle of each animal standing on the platform can lead to complication of the algorithm and the control system and increased loads on the electric drive, taking into account the significant mass and inertia of the rotating platform with animals standing on it. In order to develop an algorithm for the adaptive regulation of the platform rotation speed of the conveyer mil

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13

Guliński, Piotr, and Michał Kacper Kroszka. "The Influence of Selected Environmental Factors on the Number of Somatic Cells in Cistern and Alveolar Milk of Polish Holstein-Friesian Cows." Animals 14, no. 15 (2024): 2219. http://dx.doi.org/10.3390/ani14152219.

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The aim of the study was to evaluate the influence of the milking phase on somatic cell count (SCC) in milk obtained from the cisternal and alveolar parts of udders of selected Polish Holstein-Friesian cows. The study also assessed the impact of other genetic and environmental factors on SCC variability in cisternal and alveolar milk, including: the individual cow, lactation stage, age of cow, production level, milking speed, fat-to-protein ratio, and milking type. The research included 15 cows of Polish Holstein-Friesian breed at different ages, lactation stages, and with varying daily milk y

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14

Edwards, J. P., J. G. Jago, and N. Lopez-Villalobos. "Principles for maximising operator efficiency and return on investment in rotary dairies." Animal Production Science 54, no. 8 (2014): 1102. http://dx.doi.org/10.1071/an13200.

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This study quantified the effect of rotary size, platform speed, cluster attachment time, milk yield and end-of-milking criteria on cow throughput, operator efficiency and return on investment. A model was developed to predict the mean and standard deviation of cow milking duration for a given milk yield using milking data collected from commercial dairy farms in New Zealand. After accounting for the effect of end-of-milking criteria, this estimate was used to calculate the expected cow throughput and operator efficiency for a given platform speed, rotary size and cluster attachment time. The

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15

Sawa, Anna, Mariusz Bogucki, Wojciech Neja, and Sylwia Krężel-Czopek. "Effect of temperament on performance of primiparous dairy cows." Annals of Animal Science 17, no. 3 (2017): 863–72. http://dx.doi.org/10.1515/aoas-2016-0085.

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Abstract This study was designed to analyse the effect of milking behaviour (temperament) of primiparous dairy cows on their milk and reproductive performance as well as survival to the second lactation. Milk performance, reproductive performance and culling data on 12028 Polish Holstein-Friesian primiparous dairy cows were acquired from the SYMLEK database. Using the methodology of the Polish Federation of Cattle Breeders and Dairy Farmers, the temperament of the cows was assessed as: 1 - calm, 2 - normal, 3 - excitable or aggressive. Primiparous cows from the analysed population were charact

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16

Meyer, K., and E. B. Burnside. "Scope for a Subjective Assessment of Milking Speed." Journal of Dairy Science 70, no. 5 (1987): 1061–68. http://dx.doi.org/10.3168/jds.s0022-0302(87)80112-1.

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17

Cecchinato, Alessio, Mauro Povinelli, Martino Cassandro, Paolo Carnier, Riccardo Dal Zotto, and Luigi Gallo. "Relations between different objective milking speed recording systems." Italian Journal of Animal Science 6, no. 2 (2007): 195–203. http://dx.doi.org/10.4081/ijas.2007.195.

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18

Kudělka, Jan, Jiří Fryč, Vlastimil Slaný, Robert Rouš, Akshaya Raj, and Radek Martínek. "Parameters setting of Frequency Converter PI regulation to ensure the vacuum of the milking process." PLOS ONE 16, no. 7 (2021): e0253427. http://dx.doi.org/10.1371/journal.pone.0253427.

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This paper presents regulation of an asynchronous induction motor so as to create a stable vacuum milk pump using Variable Frequency Drive (VFD). Contribution includes providing information about the usage of the VFD, which regulates the activity of an asynchronous induction motor so that the vacuum pump milking machine creates stable vacuum. The paper describes the functional and time dependence of input values and output parameters of frequency converters at changing electric motor speed. For simulation and verification the milking process a mathematical model of the milking machine was crea

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19

Wethal, K. B., M. Svendsen, and B. Heringstad. "Are farmer assessed temperament, milking speed, and leakage genetically the same traits in automatic milking systems and traditional milking systems?" Journal of Dairy Science 103, no. 4 (2020): 3325–33. http://dx.doi.org/10.3168/jds.2019-17503.

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20

Paliy, Andriy, Elchyn Aliiev, Anatoliy Paliy, et al. "Determining the effective mode of operation for the system of washing the milking machine milk supply line." Eastern-European Journal of Enterprise Technologies 5, no. 1 (119) (2022): 74–81. http://dx.doi.org/10.15587/1729-4061.2022.265778.

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The application of techniques for effective cleaning of milking routes in milking machines is an important way to improve the quality of milk and increase labor productivity in dairy farming. The object of research was the system of washing the milk line of the milking machine with the upper milk line. The problem of rational use of energy resources was solved in the implementation of a routine operation – washing the milking machine. Experimental studies were carried out according to the Box-Benkin plan of the second order for 3 factors (the speed of movement of the washing solution, V; the t

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21

Mincu, Madalina, Dinu Gavojdian, Ioana Nicolae, Alexandru Corneliu Olteanu, Adrian Bota, and Constantin Vlagioiu. "Water Buffalo Responsiveness during Milking: Implications for Production Outputs, Reproduction Fitness, and Animal Welfare." Animals 12, no. 22 (2022): 3115. http://dx.doi.org/10.3390/ani12223115.

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The overall objective of this study was to evaluate the effects that milking temperament (MT) of water buffaloes has on milking traits, welfare indicators, and reproductive outputs. The study was performed on 60 multiparous buffalo cows (6.7 ± 0.6 lactations) at the beginning of their lactation (100 days in milk, DIM). Each buffalo cow was scored by two independent observers using a temperament scoring system (1: extremely calm, 2: calm, 3: alert, 4: reactive, and 5: aggressive), and then grouped as ‘calm’ (scores 1, 2, and 3; n = 42) or ‘nervous’ (scores 4 and 5; n = 18). Additionally, the mi

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22

VLADIMIROV, F. E., S. O. BAZAEV, S. S. YUROCHKA, and A. R. KHAKIMOV. "TECHNICAL AND TECHNOLOGICAL ASSESSMENT OF MILKING ROBOTS FROM VARIOUS MANUFACTURERS." Elektrotekhnologii i elektrooborudovanie v APK 71, no. 2 (2024): 70–76. http://dx.doi.org/10.22314/2658-4859-2024-71-2-70-76.

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Now one of the urgent problems in dairy cattle breeding is the shortage of workers and specialists. The solution to the problem is the introduction of a voluntary robotic milking system. (Research purpose) The research purpose is conducting a comparative analysis of milking robots of the most popular manufacturers in the world, such as Lely, DeLaval, Gea Farm Technologies. (Materials and methods) Studies were carried out on three farms equipped with milking robots of the studied companies. We used our own measurements, as well as data from the herd management programs of milking robots. (Resul

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23

Blasco, E., E. A. Gomez, C. Vicente, G. Vidal, and C. Peris. "Factors affecting milking speed in Murciano-Granadina breed goats." Journal of Dairy Science 99, no. 12 (2016): 10102–8. http://dx.doi.org/10.3168/jds.2016-10869.

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24

Elchyn, Aliiev, Paliy Andriy, Dudin Volodymyr, et al. "Establishing an interconnection between the technical and technological parameters of milking equipment based on the movement of a milk-air mixture in a milking machine." Eastern-European Journal of Enterprise Technologies 2, no. 1 (116) (2022): 35–46. https://doi.org/10.15587/1729-4061.2022.253978.

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Machine milking is one of the main technological processes in the dairy industry whose efficiency level largely affects cattle breeding in general. The key role, in this case, belongs to milking equipment. The design and use of technical means of milking are associated with certain difficulties related to the imperfection of milk discharge. Therefore, the current study is due to the need to investigate the process of moving the milk mixture in a milking machine. A physical-mathematical model of the process of moving the two-phase milk-air mixture along the milk-conducting line of a milking mac

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Gálik, Roman, Gabriel Lüttmerding, Štefan Boďo, Ivana Knížková, and Petr Kunc. "Impact of Heat Stress on Selected Parameters of Robotic Milking." Animals 11, no. 11 (2021): 3114. http://dx.doi.org/10.3390/ani11113114.

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The values of the temperature-humidity index and its influence on the performance parameters of dairy cows were monitored on four farms located in the southern part of the central Slovakia during a period of three years. The observed parameters included: the milk yield per cow per day, average milk speed and maximum milk speed. The thermal-humidity index was calculated based on a formula. The individual periods were divided according to the achieved THI. The results of dairy cows with a milk yield of 29 kg to 31 kg show that there is not a decrease in the milk yield per milking if the THI valu

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26

Andriy, Paliy, Aliiev Elchyn, Paliy Anatoliy, et al. "Determining the effective mode of operation for the system of washing the milking machine milk supply line." Eastern-European Journal of Enterprise Technologies 5, no. 1 (119) (2022): 74–81. https://doi.org/10.15587/1729-4061.2022.265778.

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The application of techniques for effective cleaning of milking routes in milking machines is an important way to improve the quality of milk and increase labor productivity in dairy farming. The object of research was the system of washing the milk line of the milking machine with the upper milk line. The problem of rational use of energy resources was solved in the implementation of a routine operation – washing the milking machine. Experimental studies were carried out according to the Box-Benkin plan of the second order for 3 factors (the speed of movement of the washing solution,&nb

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27

Kliś, Piotr, Dariusz Piwczyński, Anna Sawa, and Beata Sitkowska. "Prediction of Lactational Milk Yield of Cows Based on Data Recorded by AMS during the Periparturient Period." Animals 11, no. 2 (2021): 383. http://dx.doi.org/10.3390/ani11020383.

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Early prediction of lactation milk yield enables more efficient herd management. Therefore, this study attempted to predict lactation milk yield (LMY) in 524 Polish Holstein–Friesian cows, based on information recorded by the automatic milking system (AMS) in the periparturient period. The cows calved in 2016 and/or 2017 and were used in 3 herds equipped with milking robots. In the first stage of data analysis, calculations were made of the coefficients of simple correlation between rumination time (expressed as mean time per cow during the periparturient period: second (14–8 days) and first (

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Paliy, Andriy, Elchyn Aliiev, Alexander Nanka, et al. "Identifying changes in the technical parameters of milking rubber under industrial conditions to elucidate their effect on the milking process." Eastern-European Journal of Enterprise Technologies 3, no. 1 (111) (2021): 21–29. http://dx.doi.org/10.15587/1729-4061.2021.231917.

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Many years of experience in the operation of milking machines show that milking rubber was and remains a short-lived and unreliable link in the technological process of machine milking. During operation, rubber quickly loses its strength and elastic properties, becomes stiff and less elastic, deforms, and changes its shape. The purpose of this study is to identify changes in the technical parameters of milking rubber under industrial conditions in order to establish their impact on the milking process. The obtained results could make it possible to rationally choose the milking rubber for teat

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29

Špehar, Marija. "Genetic parameters estimation for milking speed in Croatian Holstein cattle." Mljekarstvo 67 (February 1, 2017): 33–41. http://dx.doi.org/10.15567/mljekarstvo.2017.0104.

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Milking speed (MS) has a growing importance from a dairy management standpoint. Cows with slow MS require more labour, while cows with fast MS could be in greater risk for udder diseases. Although MS is considered as a trait of importance, little attention has been given to estimate genetic components for MS and its relationship with other traits. The objectives of this study were: 1) to estimate genetic parameters for MS in Croatian Holstein cattle; 2) to use them for the prediction of breeding values; and 3) to estimate proof correlations of MS with production and conformation traits in orde

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Andriy, Paliy, Naumenko Artem, Paliy Anatoliy, et al. "IDENTIFYING CHANGES IN THE MILKING RUBBER OF MILKING MACHINES DURING TESTING AND UNDER INDUSTRIAL CONDITIONS." Eastern-European Journal of Enterprise Technologies 5, no. 1 (107) (2020): 127–37. https://doi.org/10.15587/1729-4061.2020.212772.

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Milking rubber is the only part of the milking equipment that comes into direct contact with the cow’s teats. The task is to establish the high-quality technical and technological characteristics of the rubber liners for milking machines. It has been established that milking rubber after 600‒650 hours of operation acquires significant deflection in the range of 5.5±0.03–3.7±0.04 mm while a teat cup deformation varies within 1.3±0.02–3.5±0.05 mm. A positive correlation dependence of the milking rubber elasticity on the deformation of

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31

HRYTSUN, Anatolii, Igor ZOZULYAK, Mykola BORYS, and Andrii MARTYNYUK. "THEORETICAL STUDIES OF THE PROCESS OF MACHINE MILKING OF COWS WITH AN APPARATUS WITH MILKING RUBBER VARIABLE THICKNESS." ENGINEERING, ENERGY, TRANSPORT AIC, no. 2(125) (August 30, 2024): 28–35. https://doi.org/10.37128/2520-6168-2024-2-3.

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Over the last decade, the conditions of dairy farming have undergone significant changes. A decrease in the number of livestock and the production of dairy products was allowed. Despite measures taken at the state level, the number of dairy cattle is decreasing. The decrease in the volume of milk production is sharply reflected in the level of consumption of dairy food products. At the current stage of the country's economic development, in order for domestic dairy farming to be profitable, competitive and ensure food independence, it must be highly productive. For this purpose, it is necessar

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Kirsanov, Vladimir V., Andrey Y. Izmaylov, Yakov P. Lobachevsky, Oksana A. Tareeva, Sergey N. Strebulyaev, and Roman F. Filonov. "Models and Algorithms of Adaptive Animal Flow Control in Rotary Milking Parlors." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 67, no. 6 (2019): 1465–84. http://dx.doi.org/10.11118/actaun201967061465.

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The study addresses the influence of milking duration of individual cows on the performance of conveyor-like rotary milking parlors and seeks to optimize their operation parameters and operating modes. The observational experiment was conducted in the Zhdanovsky Farm in Nizhny Novgorod Region, Russia. The dairy farm had a herd of 600 cows, divided into 10 groups by physiological characters and milk yield, and operated a 36 point milking parlor. Distribution of milking time of individual cows was studied using statistical analysis methods. The cyclogram of parlor operation and the functional co

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Babyn, Ihor. "ANALYSIS OF MODERN AUTOMATIC METHODS OF WASHING OF MILKING INSTALLATIONS." ENGINEERING, ENERGY, TRANSPORT AIC, no. 3(106) (November 29, 2019): 13–17. http://dx.doi.org/10.37128/2520-6168-2019-3-2.

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According to ISO 3918: 2007, ISO 5707: 2007 and ISO 6690: 2007, the detergent system must be designed and constructed so that detergents and disinfectants do not mix with milk. The proper functioning of the circulating detergent system depends on the following factors: the design and installation of the detergent system must ensure the proper volume of circulation, the speed and duration of the detergent solutions; temperature and concentration should be appropriate for the types of cleaning and disinfecting solutions. The purpose of the research is to analyze modern automatic ways of washing

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34

Marçal-Pedroza, Maria Guilhermina, Mariana Magalhães Campos, Marta Fonseca Martins, et al. "Is the temperament of crossbred dairy cows related to milk cortisol and oxytocin concentrations, milk yield, and quality?" PLOS ONE 18, no. 6 (2023): e0286466. http://dx.doi.org/10.1371/journal.pone.0286466.

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Reactive dairy cows are more susceptible to stress, and this may result in negative effects on milk yield and quality. The aims of this study were to investigate the relationships between temperament traits and concentration of milk cortisol and oxytocin, milk yield, milkability, and milk quality in Holstein-Gyr cows. Temperament traits were assessed in 76 Holstein-Gyr cows in the milking parlor (by scoring milking reactivity and recording the numbers of steps and kicks during pre-milking udder preparation and when fitting the milking cluster) and during handling in the corral (by measuring th

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Schaeffer, Lawrence R., Edward B. Burnside, Paige Glover, and Jalal Fatehi. "Crossbreeding Results in Canadian Dairy Cattle for Production, Reproduction and Conformation." Open Agriculture Journal 5, no. 1 (2011): 63–72. http://dx.doi.org/10.2174/1874331501105010063.

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Progeny of Holstein females mated to sires of different breeds were genetically evaluated along with their purebred Holstein contemporaries born in the same herds using multiple trait animal models. The resulting estimated breeding values (EBV) of cows were averaged within breed of sire and compared relative to progeny of purebred Holstein sires for various economic traits. All progeny were born since 2005, and only animals from herds with crossbreds were included in the genetic evaluation models. Crossbred cows were significantly below Holstein sired cows for 305-d EBV for milk yield, but wer

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Kaskous, Shehadeh, and Michael W. Pfaffl. "Milking Machine Settings and Liner Design Are Important to Improve Milking Efficiency and Lactating Animal Welfare—Technical Note." AgriEngineering 5, no. 3 (2023): 1314–26. http://dx.doi.org/10.3390/agriengineering5030083.

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The purpose of milking machines is to harvest milk at optimal quality and speed, while maintaining animal comfort and teat defense mechanisms against invading mastitis pathogens. Therefore, the milking machine is a very important piece of equipment on dairy farms to maintain a long healthy lactation by following the physiological conditions of the udder. The mechanical forces during long-term machine milking processes lead to changes in the teat tissue. This effect is related to the degree of adaptation of the milking machines to the physiological requirements of the individual udder anatomy a

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Gennadii, Golub, Medvedskyi Oleksandr, Achkevych Vasyl, and Achkevych Oksana. "ESTABLISHING RATIONAL STRUCTURAL-TECHNOLOGICAL PARAMETERS OF THE MILKING MACHINE COLLECTOR." Eastern-European Journal of Enterprise Technologies 1, no. 1 (91) (2018): 12–17. https://doi.org/10.15587/1729-4061.2018.121537.

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A collector of the milking machine is the nodal element in the system of accumulation and transportation of the received milk to a milk pipeline. It was established that the structural-technological parameters of the milking machine collector influence the efficiency of machine milking. This is related to ensuring the completeness of milking and preserving the quality of the received milk. Existing designs of collectors perform their functions insufficiently and inefficiently. A delay in emptying the milk chamber disrupts operational characteristics of machine milking. It is possible to solve

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Marete, Andrew, Goutam Sahana, Sébastien Fritz, et al. "Genome-wide association study for milking speed in French Holstein cows." Journal of Dairy Science 101, no. 7 (2018): 6205–19. http://dx.doi.org/10.3168/jds.2017-14067.

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Gryshko, V., Y. Balatsky, V. Malyna, М. Fedorchenko, and L. Bondarenko. "Influence of constructive features of cowshed on the formation of microclimate and qualitative indicators of milk." Tehnologìâ virobnictva ì pererobki produktìv tvarinnictva, no. 1(170) (June 24, 2022): 75–82. http://dx.doi.org/10.33245/2310-9289-2022-170-1-75-82.

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The state of the microclimate in the light-frame, reconstructed cowshed and milking parlor with a loose-box method of keeping a dairy herd in the spring was studied; the influence of different conditions and parameters of the microclimate on milk quality was investigated. It was found that the temperature in the reconstructed cowshed with forced milking in the hall by the milking machine «Yalynka» averaged 14.27 ± 2.105 ° C, while in the milking parlor the temperature was slightly higher than 16.38 ± 1.335 ° C. In the light frame cowshed the temperature was 12.24 ± 1.380 ° С, and in the milkin

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Цыганок, Влад Олегович, Марина Анатольевна Свяженина, and Евгений Максимович Гагарин. "OPTIMIZATION OF MILKING PROCESSES IN THE MILKING PARLOR WITH THE XCALIBUR 360 EX “CAROUSEL”." Вестник Бурятской государственной сельскохозяйственной академии имени В. Р. Филиппова, no. 2(59) (June 23, 2020): 108–14. http://dx.doi.org/10.34655/bgsha.2020.59.2.015.

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В работе представлены результаты исследования технологических аспектов доения крупного рогатого скота. Эксперимент поставлен в условиях предприятия ООО «Эвика-Агро» Тюменской области в период с апреля по декабрь 2019 года на доильной установке типа «Карусель» производителя BouMatic марки XCALIBUR 360 EX на 50 скотомест. В условиях крупного молочного хозяйства при планомерном росте поголовья и постоянном росте генетического потенциала животных возникает необходимость в коррекции установленных ранее параметров доения. Связано это с противоречиями, возникающими вследствие ускоренных технологическ

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Kuczaj, Marian, Anna Mucha, Alicja Kowalczyk, Ryszard Mordak, and Ewa Czerniawska-Piątkowska. "Relationships between Selected Physiological Factors and Milking Parameters for Cows Using a Milking Robot." Animals 10, no. 11 (2020): 2063. http://dx.doi.org/10.3390/ani10112063.

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The aim of the study was to determine the effect of the number and stage of lactations, time of day and calving season of cows on milk yield from a single milking, average milking time, average milking per minute, daily milking frequency and the relationship between the tested parameters of quarter milking. The study included a herd of 65 Polish Holstein Friesian black and white cows used in a free-range barn located in south-west Poland. The animals were kept in proper welfare conditions, fed using the partly mixed ration (PMR) method on the feeding table. The milk was obtained using the Lely

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ISOGAI, Tamotsu, Hideki ENDO, Yasuko TANIGUCHI, and Yutaka IKEUCHI. "Genetic Analysis of Disposition and Milking Speed in Holstein by Threshold Model." Nihon Chikusan Gakkaiho 64, no. 10 (1993): 1038–40. http://dx.doi.org/10.2508/chikusan.64.1038.

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Bowman, P. J., P. M. Visscher, and M. E. Goddard. "Customized selection indices for dairy bulls in Australia." Animal Science 62, no. 3 (1996): 393–403. http://dx.doi.org/10.1017/s1357729800014946.

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AbstractCustomized sire selection indices were developed for Australian dairy bulls in order to promote more objective use of estimated breeding values in commercial breeding programmes. It was assumed that the breeding goal for commercial dairy farmers is the profitability of a bull's progeny. Seven characteristics of the progeny were identified as having a major impact on profitability and were included in the breeding objective: milk, fat and protein yield, survival, body weight, milking speed and temperament. Traits in the selection indices used to predict profit were milk, fat and protein

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KIRSANOV, VLADIMIR V., YURI G. IVANOV, LYUDMILA N. VERLIKOVA, and VLADIMIR N. KRAVCHENKO. "MILK COOLING UNIT BASED ON THERMOELECTRIC MODULES." Agricultural engineering, no. 3 (2021): 49–55. http://dx.doi.org/10.26897/2687-1149-2021-3-49-55.

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The tendency to increase the consumption of personalized nutrition opens up new prospects for the industrial production of milk from an individual cow with preserved useful components inherent in a specifi c animal species, the composition of fat, protein, lactose, and taste. A milking installation is composed of robots for individual milking of cows with automatic control of milk quality indicators. At the same time, milk corresponding to the parameters of high quality enters the thermoelectric plate-type cooler – heater, then into the packing machine, where it is bottled into containers to f

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УЛЬЯНОВ, В. М., В. А. ХРИПИН, Н. Е. ЛУЗГИН, В. И. ВАРАВИН, and Д. А. ЖИЖНОВ. "GROUNDING PARAMETERS OF THE MILKING MACHINE PULLER." VESTNIK RIAZANSKOGO GOSUDARSTVENNOGO AGROTEHNOLOGICHESKOGO UNIVERSITETA IM P A KOSTYCHEVA, no. 1(49) (March 30, 2021): 161–69. http://dx.doi.org/10.36508/rsatu.2021.49.1.024.

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Проблема и цель. Теоретические исследования направлены на возможность расчета расхода воздуха и мощности пневмодвигателя съемника аппарата с вымени животного. Методология. Холостое доение доильным аппаратом весьма опасно для коров, так как помимо болевых ощущений на сосках вымени часто приводит к заболеваниям животных и их преждевременной выбраковке. Таким образом, важно не только полностью выдоить корову, но и вовремя отсоединить подвесную часть доильного аппарата от вымени животного. Для устранения холостого доения авторами предложена конструкция съемника, обеспечивающего отсоединение подвес

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SCHULMAN, N. F., S. M. VIITALA, and J. H. VILKKI. "Quantitative trait loci for udder conformation and other udder traits in Finnish Ayrshire cattle." Agricultural and Food Science 16, no. 2 (2008): 170. http://dx.doi.org/10.2137/145960607782219292.

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Udder traits are important due to their correlation with clinical mastitis which causes major economic losses to the dairy farms. Chromosomal areas associated with udder conformation traits, milking speed and leakage could be used in breeding programs to improve both udder traits and mastitis resistance. Quantitative trait loci (QTL) mapping for udder traits was carried out on bovine chromosomes (BTA) 9, 11, 14, 18, 20, 23, and 29, where earlier studies have indicated QTL for mastitis. A granddaughter design with 12 Ayrshire sire families and 360 sons was used. The sires and sons were typed fo

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Lendelová, Jana, Ana Hauliková, Miroslav Žitňák, and Peter Kuchar. "Assessment of the Possibility of Reducing the Thermal Load in the Barn by using Mechanical Ventilation." Acta Technologica Agriculturae 24, no. 4 (2021): 173–80. http://dx.doi.org/10.2478/ata-2021-0029.

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Abstract The aim of this work is to evaluate possibility of reducing the heat stress of milking cows via climatic indices and the influence of air flow velocity in the object with milking cows using the cross-section method. For the purposes of evaluation, there was selected a four-row housing facility for 160 milking cows with natural ventilation; for the summer period, natural ventilation was supplemented with mechanical ventilation (2877 m3·h−1 per cow). Measurements were conducted in the network created with 12 measuring points across the barn width, repeated in five cross-sections A, B, C

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Nurzhanov, Baer S., Konstantin G. Logachev та Galimzhan K. Duskaev. "Эффективность использования комбикормов с корректированной минеральной питательн стью по различным нормативам NRC и NASEM на молочную продуктивность коров". Animal Husbandry and Fodder Production 107, № 4 (2025): 169–76. https://doi.org/10.33284/2658-3135-107-4-169.

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The paper presents the results of a comparative assessment of the effect of compound feeds with adjusted mineral nutrition according to various standards on milk productivity of cows. According to the 2021 standards, we increased the input of a number of microelements: zinc by 9.4%, manganese by 125%, cobalt by 67%, iron by 9.1% and chromium by 33.3% compared to the 2001 standards. According to the tabular data, the average values in 2022 increased for compound feed consumption by 24.4%, milking speed by 0.32 l/min; milk yield per head per month by 4.54%. Observing the experimental herd, we

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Globin, Andrey, Andrey Nesmiyan, Ivan Krasnov, Alexander Scherbakov, Vladimir Vanzha, and Leisan Akhtyamova. "Improving the operation process of a vane type vacuum pump for milking machines." E3S Web of Conferences 548 (2024): 01025. http://dx.doi.org/10.1051/e3sconf/202454801025.

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A description is given of the improved design of a pump with a rotating casing and flexible plates, used to create vacuum in milking machines. As a result of theoretical and experimental studies, the influence of its main parameters and operating modes on the volumetric flow was revealed. The most significant factors under consideration include: the rotation speed of the rotor and pump housing, the eccentricity of the rotor installation in the housing, the ratio of the width and diameter of the rotor, the size of the gaps at the ends. An analysis of the dynamics of air pressure in the working

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Babyn, Ihor. "JUSTIFICATION OF THE MODES OF THE MILK WASHING SYSTEM OF THE MILKING INSTALLATION." ENGINEERING, ENERGY, TRANSPORT AIC, no. 4(107) (December 20, 2019): 88–98. http://dx.doi.org/10.37128/2520-6168-2019-4-11.

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Keywords: milk As a result of long-term operation of the milk-conducting lines of milking machines on their internal surfaces various in composition, properties, thickness, strength of adhesion to the deposition surface of alkaline and acidic nature are formed. Their presence leads to bacterial contamination of milk, resulting in a decrease in its quality and shelf life. The process of washing the elements of milking machines is one of the most important technological operations, the efficiency of which depends on the level of primary contamination of milk. The purpose is to investigate the op

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