Establishing changes in the technical parameters of nipple rubber for milking machines and their impact on operational characteristics

Paliy, Andriy; Nanka, Alexander; Marchenko, Mykhailo; Bredykhin, Vadym; Paliy, Anatoliy; Negreba, Julia; Лазоренко, Лариса; Panasenko, Alexander; Rybachuk, Zhanna; Мусієнко, Олексій

doi:10.15587/1729-4061.2020.200635

Cited by 11 publications

(18 citation statements)

References 17 publications

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“…The choice of these products is justified by that they are widely represented in the market of milking equipment and are in demand [3].…”

Section: Methodology To Study the Qualitative Indicators Of New MImentioning

confidence: 99%

“…1. Device for finding defects in the milking rubber of milking cups using an electric current: a -physical appearance of the device with the adjusTable power supply unit Masteram MR3005-2; b -the scheme of the device: 1 -conic core; 2 -cartridge; 3 -electric current meter; 4 -current voltage meter; 5 -the examined milking rubber [26] The control we chose was the milking rubber DD 00.041A from AO «Bratslav», which passed the appropriate tests, and established itself as a reliable element of the milking equipment [3].…”

Section: Methodology To Study the Qualitative Indicators Of New MImentioning

confidence: 99%

“…An analysis of numerous experiments [3][4][5][6] reveals that the design of milking rubber outperforms any other factor in affecting the characteristics of milking. Thus, to make the milking swift, with maximum completeness, and, at the same time, to prevent any harm to the udder teats, the milking rubber should be of high quality, that is, meet the technological parameters that take into consideration the physiologicality of animals as much as possible.…”

Section: Introductionmentioning

confidence: 99%

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Identifying changes in the milking rubber of milking machines during testing and under industrial conditions

Paliy¹,

Naumenko²,

Paliy³

et al. 2020

EEJET

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“…The choice of these products is justified by that they are widely represented in the market of milking equipment and are in demand [3].…”

Section: Methodology To Study the Qualitative Indicators Of New MImentioning

confidence: 99%

Section: Methodology To Study the Qualitative Indicators Of New MImentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Identifying changes in the milking rubber of milking machines during testing and under industrial conditions

Paliy¹,

Naumenko²,

Paliy³

et al. 2020

EEJET

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“…In addition to direct factors, favorable conditions in the etiology of mastitis are: microclimate of the room, design of stalls (boxes), age of animals, lactation stage, hereditary predisposition, hormonal effects, general animal diseases, violations of zootechnical feeding standards, unsanitary conditions of cows, milking hygiene, unsuitability of individual animals for machine milking, etc. (Asma et al, 2019;Paliy et al, 2020). A microbial factor is of particular importance in the occurrence of mastitis.…”

Section: Introductionmentioning

confidence: 99%

Species composition of microbiota of cows udder and raw milk quality at mastitis

Palii¹,

Ulko²,

Bogomolov³

et al. 2020

Ukr J Ecol

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To increase the productivity of cows and improve the nutritional and sanitary-technological qualities of milk is one of the most important tasks in the development of dairy farming in all countries of the world. The cause of degradation of these parameters is such a widespread disease of cows as mastitis. The social significance of mastitis is manifested in the fact that the causative agents of mastitis in cows can cause disease in humans. Since streptococci and staphylococci play a leading role in mastitis, they are the most common in milk. Studies have shown that udder disease in cows with mastitis at the beginning of lactation has a certain seasonal nature and its main peaks occur in March-May and September-November. During these months, from 2.5% to 4.1% of cows from the total number of livestock of the farm were found to have mastitis. Physiochemical features of milk from the cows with mastitis were an increase in the number of somatic cells to 1,500,000/cm3, increase of milk pH to 7.3, caused by the breakdown of milk proteins into ammonia, the increase in milk electrical conductivity to 5.92-7.54 mS/cm, associated with the entry of sodium and chlorine ions from the blood into the milk. In studies of cows with mastitis, 16 species of bacteria were isolated from the secretion of the udder. In monoculture, the microflora, that was found in 30.5% of cows, consisted of E. coli, St. epidermidis, C. freundi, Sh. Dysentery, St. aureus, St. hyicus spp. Chromogenes, Str. Agalactiae, St. lentus, and St. intermediate. In 69.5% of cows with mastitis, the microflora was found in various associations. The most common associations of bacteria were St. epidermidis + St. aureus + Str. agalactiae + Str. haemolyticus; E. coli + Str. agalactiae; Str. agalactiae + St. epidermidis; St. epidermidis + St. aureus + Str. agalactiae. We developed a method for diagnosing mastitis in cows, which was to diagnose the disease at early stage of inflammation of the mammary glands by studying the composition of the milk the examined lobe of the udder.

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“…The dangerous effect of the milking machine on the condition of the cow's udder is based primarily on two points: it can spread bacteria that cause mastitis, or damage the skin of the teats. Bacteria are spread from cow to cow through teat cups (Paliy et al, 2020). The pressure fluctuations of the milking parlor can result in reverse milk jets, which also carry bacteria from one part of the cow's udder into another.…”

mentioning

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Impact of various milking equipment on incidence of mastitis in dairy herd

Palii¹,

Kovalchuk²,

Boyko³

2020

Ukr J Ecol

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It was found that the lowest percentage of cows with mastitis was recorded in winter: 10.3% (P≤0.001) when milking with ‘De Laval’ equipment and 17.7% (P≤0.001) when milking with the ADM-8A unit. The highest incidence of mastitis in cows was observed in summer: 21.0% (P≤0.001) and 27.1% (P≤0.001), respectively, when milking cows at milking parlors ‘De Laval’ and ADM-8A. It was found that, when using milking equipment ADM-8A, adult cows are 2.1-1.7 times more prone to mastitis compared to cows of the 1st and 2nd calving. When milking cows with the ‘De Laval’ unit, the incidence of mastitis in adult cows is 4.3-1.1 times higher than in cows of the 1st and 2nd calving. Gentle milking mode on the ‘De Laval’ equipment allowed to increase the number of completely healthy animals to 74%, which is 9.6% more than when using the milking unit ADM-8A (64.4%), and to reduce the incidence of clinical mastitis in cows by 3.4 times. It has been established that in cows with disorders in the udder the content of somatic cells in the secretion of the udder significantly changes (with a high degree of correlation) in all periods of the functional state of the body. Thus, during subclinical mastitis r=l0.72 (P≤0.001) and udder irritation r=l0.58 (P≤0.05). At the beginning of lactation, subclinical mastitis is accompanied with significant changes in the activity of enzymes: muramidase r=l0.84 (P≤0.001), lactoperoxidase r=l0.65 (P≤0.01) and lactoferrin r=l0.66 (P≤0.01).

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Establishing changes in the technical parameters of nipple rubber for milking machines and their impact on operational characteristics

Cited by 11 publications

References 17 publications

Identifying changes in the milking rubber of milking machines during testing and under industrial conditions

Identifying changes in the milking rubber of milking machines during testing and under industrial conditions

Species composition of microbiota of cows udder and raw milk quality at mastitis

Impact of various milking equipment on incidence of mastitis in dairy herd

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