The influence of milk and milk components on the attachment of bacteria to farm dairy equipment surfaces

The study was carried out on 19 ewes of local Awassi sheep and 12ewes local Arabi sheep in the Al-kafeel sheep station Karbala, to determine the effect of breed and some non-genetic factors such as (sex of the lamb, type of birth, age and weight of ewes at birth) on daily and total milk production and lactation period and some of milk components (fat, protein and lactose). The results showed that a significant effect (P <0.05) of the breed on milk production traits where Awassi sheep recorded the highest mean (0.91 kg , 101.63 kg , 104.86 day) compared to the Arabi sheep she was means (0.77 kg , 88.15 kg , 99.15 day) respectively. As well as in proportions of milk components with mean( 5.1 , 4.90 , 5.51) % respectively compared to the Arabi sheep (4.70 . 4.20 . 4.89) ewes with male lambs also exceeded superior ewes with female lambs in daily and total milk production and the lactation period the sex of the lamb did not affect the proportions of milk components the weight of the ewes had a significant effect (P <0.05) in milk production attributes with superior weight of ewes on lower ewes and did not affect the proportions of milk ingredients except for lactose. The type of birth and the age of the ewes did not have a significant effect in all the studied traits except for the superiority (P<0.05) of young ewes on age ewes in the fat percentage of milk.

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Relationships among macro-minerals, other selected serum markers of bone profile and milk components of dairy cows during late-lactation

Annals of Animal Science ◽

10.2478/aoas-2020-0094 ◽

2020 ◽

Vol 0 (0) ◽

Author(s):

Ryszard Mordak ◽

Zbigniew Dobrzański ◽

Robert Kupczyński

Keyword(s):

Dairy Cows ◽

Milk Fat ◽

Dry Matter ◽

Inorganic Phosphorus ◽

Serum Markers ◽

Laboratory Diagnostics ◽

Lactation Period ◽

Milk Samples ◽

Milk Components ◽

Macro Mineral

AbstractTesting blood and milk parameters as well as analysing the relationships among these markers is very useful for monitoring the internal homeostasis and health in high-yielding dairy cows during various production periods. The aim of the study was to assess the correlations (relationships) among macro-minerals, such as calcium (Ca), inorganic phosphorus (P), magnesium (Mg), other selected bone profile markers, such as total protein (TP), albumin, activity of alkaline phosphatase (ALP) measured in serum and selected milk components such as number of somatic cells (SCC), colony-forming units (CFU), milk fat (MF), milk protein (MP), milk lactose (ML), dry matter (DM), non-fat dry matter (FDM) and milk production in late-lactation cows. Both blood and milk samples were collected from 11 clinically healthy milking cows during the late-lactation period. The cows were examined once a day for 3 consecutive days resulting in 33 sets of blood and milk samples for laboratory and statistical analysis. Significant correlations were observed between: Mg and MP, Mg and FDM, ALP and SCC, TP and SCC, TP and MP, TP and FDM, albumin and MP, albumin and FDM, P and Mg, Mg and albumin, and between TP and albumin. When monitoring macro-mineral homeostasis and mammary gland health, especially in intensively fed high-yielding dairy cows correlations between these markers should be considered. The revealed correlations can allow for deeper comparative laboratory diagnostics of homeostasis and can be especially useful for laboratory monitoring of the potential risk of subclinical macro-mineral deficiency in high-yielding dairy cows.

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Influence of Calving Ease on In-Line Milk Lactose and Other Milk Components

Animals ◽

10.3390/ani11030842 ◽

2021 ◽

Vol 11 (3) ◽

pp. 842

Author(s):

Ramūnas Antanaitis ◽

Vida Juozaitienė ◽

Dovilė Malašauskienė ◽

Mindaugas Televičius ◽

Mingaudas Urbutis ◽

...

Keyword(s):

Milk Fat ◽

Milk Protein ◽

Average Percentage ◽

Calving Ease ◽

Group 4 ◽

Lactose Concentration ◽

Milk Components ◽

Two Factors ◽

Milk Urea ◽

Group 2

The aim of our study was to determine how the ease of calving of cows may influence changes in lactose concentration and other milk components and whether these two factors correlate with each other. To achieve this, we compared data of calving ease scores and average percentage of in-line registered milk lactose and other milk components. A total of 4723 dairy cows from nine dairy farms were studied. The cows were from the second to the fourth lactation. All cows were classified according to the calving ease: group 1 (score 1)—no problems; group 2 (score 2)—slight problems; group 3 (score 3)—needed assistance; group 4 (score 4)—considerable force or extreme difficulty. Based on the data from the milking robots, during complete lactation we recorded milk indicators: milk yield MY (kg/day), milk fat (MF), milk protein (MP), lactose (ML), milk fat/lactose ratio (MF/ML), milk protein/lactose ratio (MP/ML), milk urea (MU), and milk electrical conductivity (EC) of all quarters of the udder. According to the results, we found that cows that had no calving difficulties, also had higher milk lactose concentration. ML > 4.7% was found in 58.8% of cows without calving problems. Cows with more severe calving problems had higher risk of mastitis (SCC and EC). Our data indicates that more productive cows have more calving problems compared to less productive ones.

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Hedonic Pricing of Milk Components at the Farm Level

Applied Economic Perspectives and Policy ◽

10.2307/1349431 ◽

1996 ◽

Vol 18 (2) ◽

pp. 181-192 ◽

Cited By ~ 4

Author(s):

William J. Gillmeister ◽

Robert D. Yonkers ◽

James W. Dunn

Keyword(s):

Hedonic Pricing ◽

Farm Level ◽

Milk Components

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Commercial Utilization of Minor Milk Components in the Health and Food Industries

Journal of Dairy Science ◽

10.3168/jds.s0022-0302(95)76886-2 ◽

1995 ◽

Vol 78 (11) ◽

pp. 2584-2589 ◽

Cited By ~ 32

Author(s):

Bernard S. Horton

Keyword(s):

Food Industries ◽

Milk Components

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The National Institute for Research in Dairying, Shinfield, Reading

Proceedings of the Royal Society of London Series A - Mathematical and Physical Sciences ◽

10.1098/rspa.1951.0042 ◽

1951 ◽

Vol 205 (1083) ◽

pp. 453-467

Keyword(s):

Milk Production ◽

Total Population ◽

Dairy Industry ◽

Milk Products ◽

The United Kingdom ◽

A Value ◽

Condensed Milk ◽

Liquid Milk ◽

Dairy Equipment ◽

Turn Over

The dairy industry in the United Kingdom to-day is of a size which few, even of those working in the industry, fully realize. In this industry one must include milk production on the farm, the handling, processing and distribution of liquid milk, the manufacture of milk products such as butter, cheese, dried and condensed milk, the manufacture and distribution of feeding stuffs for dairy stock, the manufacture of dairy equipment and machinery and other minor ancillary industries. Including the dependents of those actually engaged in milk production or utilization, approximately 5 % of the total population of this country is supported by the dairy industry. In monetary values, the present annual turn-over, in liquid milk alone, considerably exceeds £200 million. Measured in volume of liquid milk consumed per head of the population—a value more easily translatable into the coinage of national health— no less than 31 gal. of liquid milk per head were consumed on the average by every individual in this country during 1949.

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Variations of 13C enrichment of milk and milk components from cows fed barley- or corn-based diets

Energy and protein metabolism and nutrition ◽

10.3920/978-90-8686-891-9_135 ◽

2019 ◽

Author(s):

H. Lapierre ◽

H.F. Tyrrell ◽

G. Pelletier ◽

D.R. Ouellet

Keyword(s):

Milk Components

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377. Corrosion by commercial sodium hypochlorites and its inhibition

Journal of Dairy Research ◽

10.1017/s0022029900005240 ◽

1949 ◽

Vol 16 (1) ◽

pp. 23-38 ◽

Cited By ~ 9

Author(s):

G. H. Botham ◽

G. A. Dummett

Keyword(s):

Stainless Steel ◽

Sodium Silicate ◽

Sodium Hypochlorite ◽

Storage Conditions ◽

Simple Equation ◽

Nickel Silver ◽

Copper Nickel ◽

Dairy Equipment ◽

Cast Stainless Steel ◽

Bactericidal Efficiency

Commercial sodium hypochlorites, whether containing KMnO4 or not, are shown to be corrosive at 150 p.p.m. available chlorine and 40° C. to metals such as aluminium, tinned copper, nickel silver and cast stainless steel (18 Cr, 8 Cu, 3 Mo) which are used in dairy equipment. Hypochlorites containing KMnO4 when aged are potentially dangerous to wrought 18/8 stainless steel. The attack is by pitting and therefore especially dangerous to all the metals investigated, and, in general, increases with increase of time of exposure and temperature.Decay of sodium hypochlorite solutions results in conversion of NaOCl to NaCl and NaC103, which reaction is shown to follow a simple equation fairly closely in various storage conditions.Attack on metals by sodium hypochlorite can be efficiently inhibited by addition of sodium silicate, which has a specific action in addition to the effect exerted by increase of alkalinity. NaOH and Na2CO3 additions to the same pH are not so effective and increase attack on aluminium.Increase of pH from 9 to 10·5 by addition of Na2CO3 or sodium silicate reduces bactericidal efficiency of hypochlorites to the same extent.

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