Bayesian estimation of diagnostic accuracy of somatic cell counts history and on-farm milk culture using Petrifilm® to identify quarters or cows that should be treated with antimicrobials in selective treatment protocols at dry off

2021 ◽  
pp. 105452
Author(s):  
Fidèle Kabera ◽  
Jean-Philippe Roy ◽  
Greg Keefe ◽  
Simon Dufour
Keyword(s):  
Diagnostic Accuracy ◽  
Somatic Cell ◽  
Bayesian Estimation ◽  
Selective Treatment ◽  
Treatment Protocols ◽  
Somatic Cell Counts ◽  
Cell Counts ◽  
On Farm

A multicomponent herbal feed additive improves somatic cell counts in dairy cows ‐ a two stage, multicentre, placebo‐controlled long‐term on‐farm trial

2020 ◽  
Vol 104 (2) ◽  
pp. 439-452 ◽  
Author(s):  
Michael Walkenhorst ◽  
Florian Leiber ◽  
Ariane Maeschli ◽  
Alexandra N. Kapp ◽  
Anet Spengler‐Neff ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Somatic Cell ◽  
Feed Additive ◽  
Two Stage ◽  
Somatic Cell Counts ◽  
Cell Counts ◽  
On Farm

Survey of somatic cell counts and milk composition in bulk milk of ewes in dairy practice

10.5219/1325 ◽  
2021 ◽  
Vol 15 ◽  
pp. 151-155
Author(s):  
Martina Vršková ◽  
Vladimír Tančin ◽  
Michal Uhrinčať ◽  
Lucia Mačuhová ◽  
Kristína Tvarožková
Keyword(s):  
Somatic Cell ◽  
Somatic Cell Count ◽  
Dairy Farms ◽  
Milk Composition ◽  
Fat Content ◽  
Somatic Cell Counts ◽  
Cell Counts ◽  
Bulk Milk ◽  
Synthetic Population ◽  
On Farm

We evaluated milk quality during the sheep dairy period in the year 2018. The study was performed at fifteen dairy farms with differed breeds and crossbreds under Slovakian usual practical conditions (milking and pasture). At the first and seventh farm purebred Tsigai (TS) ewes were kept, at the eight to twelve farm there were purebred Lacaune ewes (LC) and the thirteen farm were kept crossbred Improved Valachian x Lacaune ewes (IV/LC, with a higher proportion of Improved Valachian), the fourteen farm crossbred Lacaune x East Friesian ewes and the last farm were ewes of the synthetic population of Slovak dairy ewe (SD). The milk yield recording and milk sampling were performed once a month during evening milking as a part of milk recording services. The basic milk composition was determined by MilkoScan FT120 (Foss, Hillerød, Denmark) and somatic cell count was determined using a Fossomatic 90 (Foss Electric, Hillerød, Denmark) after heat treatment at 40 °C for 15 min. We found the highest incidence of SCC on farm 14 with crossbred LC/EF 3.940 x 103 cells.mL-1. Followed by farms 12 and 9 with purebred LC (SCC value of 3.318 and 2.489 x 103 cells.mL-1). Farm 7 with purebred TS reached the lowest value (831 x 103 cells.mL-1). The highest fat content was reached by the purebred TS, with gradual growth from March to July. Crossbreds and the synthetic population of Slovak dairy ewe (SD) had the lowest average fat content, which could be affected by feeding. Similar tendencies were found in protein content.

Effect of somatic cell counts in milk on its quality depending on cow breed and season

2010 ◽  
Vol 28 (3) ◽  
Author(s):  
Jolanta Król ◽  
Aneta Brodziak ◽  
Mariusz Florek ◽  
Zygmunt Litwińczuk
Keyword(s):  
Somatic Cell ◽  
Somatic Cell Counts ◽  
Cell Counts

Frequency of individual udder quarters with elevated CMT scores in cows' milk samples with low somatic cell counts

2004 ◽  
Vol 155 (7) ◽  
pp. 213-213 ◽  
Author(s):  
I. Berglund ◽  
G. Pettersson ◽  
K. Svennersten‐Sjaunja ◽  
K. Östensson
Keyword(s):  
Somatic Cell ◽  
Somatic Cell Counts ◽  
Milk Samples ◽  
Cell Counts

Comparison of milk production, mastitis, lameness and days to conception of Brown Swiss, Holstein and Holstein cross Brown Swiss dairy cattle

2006 ◽  
Vol 2006 ◽  
pp. 86-86
Author(s):  
G Wellwood ◽  
J K Margerison
Keyword(s):  
Dairy Cattle ◽  
Somatic Cell ◽  
Milk Production ◽  
Milk Yield ◽  
Complex Disease ◽  
Economic Loss ◽  
Brown Swiss ◽  
Somatic Cell Counts ◽  
Cell Counts ◽  
Holstein Friesian

Mastitis is a complex disease causing inflammation of the udder, which has been estimated to cost the dairy farmer between £40-£117/cow per year (Stott et al., 2002). Economic loss occurs as a result of discarded milk, reduced milk yield and milk quality, increased vet costs and an increase in replacement costs. The objective of this study was to examine the effect of breed on the incidence of mastitis and somatic cell counts and milk production capabilities of Holstein Friesian, Brown Swiss and Brown Swiss crossbred cows.

scholarly journals Extensive Countrywide Field Investigation of Somatic Cell Counts and Total Bacterial Counts in Bulk-Tank Raw Milk in Sheep Flocks in Greece

Foods ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 268
Author(s):  
Daphne T. Lianou ◽  
Charalambia K. Michael ◽  
Natalia G. C. Vasileiou ◽  
Efthymia Petinaki ◽  
Peter J. Cripps ◽  
...  
Keyword(s):  
Somatic Cell ◽  
Geometric Mean ◽  
Cell Counting ◽  
Lactation Period ◽  
Mechanical Ventilators ◽  
Bulk Tank Milk ◽  
Bacterial Counts ◽  
Somatic Cell Counts ◽  
Cell Counts ◽  
Bulk Tank

Objectives were to investigate somatic cell counts (SCC) and total bacterial counts (TBC) in the raw bulk-tank milk of sheep flocks in Greece, to study factors potentially influencing increased SCC and TBC in the bulk-tank milk of sheep and to evaluate possible associations of SCC and TBC with milk content. Throughout Greece, 325 dairy sheep flocks were visited for collection of milk sampling for somatic cell counting, microbiological examination and composition measurement. Geometric mean SCC were 0.488 × 106 cells mL−1; geometric mean TBC were 398 × 103 cfu mL−1; 228 staphylococcal isolates were recovered form 206 flocks (63.4%). Multivariable analyses revealed annual incidence risk of clinical mastitis, age of the farmer and month into lactation period (among 53 variables) to be significant for SCC > 1.0 × 106 cells mL−1 and month into lactation period at sampling and availability of mechanical ventilators (among 58 variables) to be significant for TBC > 1500 × 103 cfu mL−1. Negative correlation of SCC with fat, total protein and lactose and positive correlation of SCC with added water were found. With SCC > 1.0 × 106 cells mL−1, significant reduction of protein content (2%) was observed, whilst in flocks with SCC > 1.5 × 106 cells mL−1, significantly lower annual milk production per ewe (42.9%) was recorded.

scholarly journals Carryover of aflatoxin from feed to milk in dairy cows with low or high somatic cell counts

animal ◽  
2007 ◽  
Vol 1 (9) ◽  
pp. 1344-1350 ◽  
Author(s):  
F. Masoero ◽  
A. Gallo ◽  
M. Moschini ◽  
G. Piva ◽  
D. Diaz
Keyword(s):  
Dairy Cows ◽  
Somatic Cell ◽  
Somatic Cell Counts ◽  
Cell Counts

scholarly journals Rapid Detection of Mycoplasma bovis, Staphylococcus aureus and Streptococcus agalactiae in Cattle Bulk Tank Milk in Cyprus and Relations with Somatic Cell Counts

Pathogens ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 841
Author(s):  
Maria Liapi ◽  
George Botsaris ◽  
Costas Arsenoglou ◽  
Nikolas Markantonis ◽  
Christodoulos Michael ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Somatic Cell ◽  
Real Time ◽  
Streptococcus Agalactiae ◽  
Mycoplasma Bovis ◽  
Bulk Tank Milk ◽  
Somatic Cell Counts ◽  
Milk Samples ◽  
Cell Counts ◽  
Bulk Tank

One hundred and seventy-seven (177) bulk tank milk samples were analyzed with a commercially available real-time polymerase chain reaction kit and 11 (6.21%), 41 (23.16%), and 58 (32.77%) tested positive for Mycoplasma bovis, Staphylococcus aureus, and Streptococcus agalactiae, respectively. Statistical analysis revealed a significant relationship between the presence of S. aureus and S. agalactiae. Enumeration of somatic cells was performed in the same samples by flow cytometry. The somatic cell counts were found higher in S. aureus and S. agalactiae positive samples. No association was found between M. bovis presence and somatic cells counts. Low internal assay control Ct values were found to be related with high somatic cell counts. Noticeably, this is the first report for the presence of M. bovis in Cyprus. Therefore, its presence was confirmed by bulk tank milk culture, conventional PCR, and next generation sequencing. Furthermore, M. bovis was typed with multilocus sequencing typing and was allocated to sequence type 29 (ST 29). Real-time PCR in bulk tank milk samples is a useful tool to detect mammary infections, especially for neglected pathogens such as M. bovis.

Somatic cell counts of ewes' milk

1991 ◽  
Vol 147 (6) ◽  
pp. 575-581 ◽  
Author(s):  
G.C. Fthenakis ◽  
E.T.S. El-Masannat ◽  
J.M. Booth ◽  
J.E.T. Jones
Keyword(s):  
Somatic Cell ◽  
Somatic Cell Counts ◽  
Cell Counts
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