Journal articles: 'Somatic cell count'

1

Harding, B. "Somatic cell count campaign." Veterinary Record 136, no. 3 (January 21, 1995): 78. http://dx.doi.org/10.1136/vr.136.3.78-a.

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Wojdak-Maksymiec, K., M. Kmiec, and J. Ziemak. "Associations between bovine lactoferrin gene polymorphism and somatic cell count in milk." Veterinární Medicína 51, No. 1 (March 19, 2012): 14–20. http://dx.doi.org/10.17221/5512-vetmed.

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The study included 124 Polish Black-and-White dairy cows of various share of the Holstein-Friesian (HF) breed. Lactoferrin (LTF) gene polymorphism was obtained with PCR-RFLP method using EcoRI enzyme. Two alleles of LTF, A and B, were found in the studied population. Their frequencies were 67.74% and 32.56%, respectively. The alleles controlled the occurrence of three genotypes: AA, BB and AB, of frequencies equal to 37.90%, 2.42% and 59.68%, respectively. It was established that statistically significant associations exist between the somatic cell count (SCC) and LTF genotype, lactation month and parity as well as the HF gene share. No significant association was found between somatic cell count and season. The highest somatic cell count (transformed to a logarithmic scale) was found in milk of the AB genotype, whereas the lowest one was found in cows of the AA genotype.

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LINTNER, T. J., A. L. LANGE, C. W. HEALD, and R. J. EBERHART. "Preparation and Use of Somatic Cell Count Samples (SCCS) for Comparison of Milk Somatic Cell Counting Methods." Journal of Food Protection 50, no. 2 (February 1, 1987): 132–35. http://dx.doi.org/10.4315/0362-028x-50.2.132.

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Somatic cell count samples (SCCS) for use in comparison of milk somatic cell counting methods were prepared from the cell sediment deposited in a creamery milk separator. Bovine milk somatic cells were resuspended from the sediment, and serial cell dilutions were prepared in bronopol-preserved milk diluent. Over a 1-year period, sets of SCCS were prepared each month and sent to milk-testing laboratories in the U.S.A., Canada and Europe, and counted by the methods in use at those Laboratories: (a) direct microscopic somatic cell count (DMSCC), (b) Fossomatic counter and (c) Coulter counter. Cell counts were normalized to eliminate the effect of month to month variation in the cell content of the SCCS. Counts obtained by the three methods were similar, although Coulter counter results tended to be lower, and significantly lower (P< 0.05) in SCCS with cell counts greater than 700,000 cells/ml than those counts by the other two methods. The effect of shipping on SCCS stability was assessed for SCCS samples sent to and returned from other laboratories, and counted by the Fossomatic method on their return. Counts were similar before and after shipping, except that results for SCCS with cell counts greater than 1,000,000 cells/ml were significantly higher (P<0.05) after their return.

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4

Dunham, James R. "Using the somatic cell count report." Kansas Agricultural Experiment Station Research Reports, no. 2 (January 1, 1996): 13–16. http://dx.doi.org/10.4148/2378-5977.3250.

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Albenzio, M., L. Figliola, M. Caroprese, R. Marino, A. Sevi, and A. Santillo. "Somatic cell count in sheep milk." Small Ruminant Research 176 (July 2019): 24–30. http://dx.doi.org/10.1016/j.smallrumres.2019.05.013.

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Deluyker, H. A., J. M. Gay, and L. D. Weaver. "Interrelationships of Somatic Cell Count, Mastitis, and Milk Yield in a Low Somatic Cell Count Herd." Journal of Dairy Science 76, no. 11 (November 1993): 3445–52. http://dx.doi.org/10.3168/jds.s0022-0302(93)77683-3.

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Schukken, Ynte H., K. E. Leslie, A. J. Weersink, and S. W. Martin. "Ontario Bulk Milk Somatic Cell Count Reduction Program. 2. Dynamics of Bulk Milk Somatic Cell Counts." Journal of Dairy Science 75, no. 12 (December 1992): 3359–66. http://dx.doi.org/10.3168/jds.s0022-0302(92)78112-0.

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8

Ducková, Viera, Margita Čanigová, Peter Zajác, Zuzana Remeňová, Miroslav Kročko, and Ľudmila Nagyová. "Effect of somatic cell counts occurred in milk on quality of Slovak traditional cheese – Parenica." Potravinarstvo Slovak Journal of Food Sciences 13, no. 1 (August 28, 2019): 675–80. http://dx.doi.org/10.5219/1099.

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The aim of this work was to compare somatic cell count in milk used for making steamed cheese Parenica in Slovak industrial dairies and small farm dairies and to find out whether somatic cell counts in milk affect the dry matter content of Parenica cheese. The samples of raw milk were taken from 3 industrial dairies (A, B, C) and from 3 farm dairies (E, F, G), produced traditional Slovak cheese Parenica in period from January untill December 2018. The somatic cell count in milk was determined by FossomaticTM 5000 (Foss, Denmark) and dry matter of cheese by oven drying method to constant weight. There were no statistically significant differences (p >0.05) for somatic cell counts in milk processed in industrial and farm dairies. Lower somatic cell counts were determined in milk amples from industrial dairies (mean value 326.55 thousand in 1 mL) in comparison to milk samples from farm dairies (mean value 507.67 thousand in 1 mL). Statistically lower dry matter content (p <0.01) in the samples of Parenica cheese was found out in farm dairy E in comparison to other dairies. The relationship between somatic cell count in milk and dry matter in cheese was confirmed by the relatively low correlation coefficients in dairies, A = 0.22; C = 0.15 and F = -0.12 and higher correlation coefficients in dairies, B = -0.32; D = 0.45 and E = -0.48. Obtaining a more accurate effect of somatic cell count on cheese quality requires the continuation of the research on a larger number of samples and consideration of other factors.

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Rysanek, D., V. Babak, and M. Zouharova. "Bulk tank milk somatic cell count and sources of raw milk contamination with mastitis pathogens." Veterinární Medicína 52, No. 6 (January 7, 2008): 223–30. http://dx.doi.org/10.17221/1878-vetmed.

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The objective of this study was to probe the relationship between prevalence of selected principal mastitis pathogens and somatic cell counts in bulk tank milk samples. The sources of milk contamination were evaluated. The samples were collected from 298 dairy herds (with approximately 32 000 dairy cows). Only 48.3% of the bulk tank milk samples were free of contamination of pathogens of interest. Approximately 38.9% of the milk samples were contaminated with only one, 12.4% with two and 0.3% with three pathogens. The arithmetic mean of logarithmically transformed data of bulk tank milk somatic cell count rise in order: pathogen free, Pseudomonas aeruginosa, Streptococcus uberis, Escherichia coli and Staphylococcus aureus (5.381; 5.413; 5.495; 5.518; 5.563, respectively). The arithmetic mean differences between bulk tank milk somatic cell counts in pathogen-free and single-pathogen contaminated samples have revealed a significance for the Escherichia coli and Staphylococcus aureus groups (P < 0.01). Using binary logistic regression, a statistically highly significant relationship (P < 0.001) has been found between the number of contaminations of bulk tank milk samples with mastitis pathogens and bulk tank milk somatic cell counts. The relationship allows the determination of the probability of finding relevant mastitis pathogens in bulk tank milk samples with different levels of bulk tank milk SCC. A 63% probability can be defined at a cell count level of 400 000/ml and 20% at a cell count level of 100 000/ml. Analysis may reveal the potential sources of the bulk tank milk sample contamination, i.e. infected mammary glands or the environment. The presence of high levels of contamination along with a low bulk tank SCC may suggest an environmental source of contamination. The study clarified that a potential source of bulk tank milk contamination by relevant pathogens (the environment or the mammary gland) may be elucidated and the probability of the contamination of bulk tank milk samples with mastitis pathogens predicted by the analysis of relationship between the bulk tank milk somatic cell counts and the number of mastitis pathogen contaminations.

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Fauteux, V., E. Bouchard, D. Haine, D. T. Scholl, and J. P. Roy. "Prediction of bulk tank somatic cell count violations based on monthly individual cow somatic cell count data." Journal of Dairy Science 98, no. 4 (April 2015): 2312–21. http://dx.doi.org/10.3168/jds.2014-7965.

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11

Lievaart, Jan, Herman W. Barkema, Henk Hogeveen, and Wim Kremer. "Reliability of the bulk milk somatic cell count as an indication of average herd somatic cell count." Journal of Dairy Research 76, no. 4 (September 17, 2009): 490–96. http://dx.doi.org/10.1017/s0022029909990264.

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Bulk milk somatic cell count (BMSCC) is a frequently used parameter to estimate the subclinical mastitis prevalence in a dairy herd, but it often differs considerably from the average SCC of all individual cows in milk. In this study, first the sampling variation was determined on 53 dairy farms with a BMSCC ranging from 56 000 to 441 000 cells/ml by collecting five samples on each farm of the same bulk tank. The average absolute sampling variation ranged from 1800 to 19 800 cells/ml. To what extent BMSCC represents all lactating cows was evaluated in another 246 farms by comparing BMSCC to the average herd SCC corrected for milk yield (CHSCC), after the difference was corrected for the sampling variation of BMSCC. On average BMSCC was 49 000 cells/ml lower than CHSCC, ranging from −10 000 cells/ml to 182 000 cells/ml, while the difference increased with an increasing BMSCC. Subsequently, management practices associated with existing differences were identified. Farms with a small (<20%) difference between BMSCC and CHSCC administered intramuscular antibiotics for the treatment of clinical mastitis more often, used the high SCC history when cows were dried off more frequently and had a higher number of treatments per clinical mastitis case compared with farms with a large (⩾20%) difference. Farms feeding high-SCC milk or milk with antibiotic residues to calves were 2·4-times more likely to have a large difference. Although sampling variation influences the differences between BMSCC and CHSCC, the remaining difference is still important and should be considered when BMSCC is used to review the average herd SCC and the subclinical mastitis prevalence.

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12

Čítek, J., V. Řehout, L. Hanusová, A. Míková, and I. Jašková. "Polymorphisms in CGIL4, breeding value for somatic cell count and resistance to mastitis." Czech Journal of Animal Science 56, No. 7 (July 19, 2011): 301–4. http://dx.doi.org/10.17221/1297-cjas.

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The relationship between a potential marker for mastitis, CGIL4, and the breeding value for somatic cell count (SCC) was analysed in a panel of Czech Simmental and German Holstein sires. Genotyping was done by PCR/RFLP. The analysis did not reveal a significant difference in breeding values for SCC depending on the genotype of CGIL4, even though other authors confirmed the relationship between this marker and clinical mastitis. Further investigations will be necessary to clarify the relevance of the marker for selection against mastitis.

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13

De Vliegher, S., H. W. Barkema, H. Stryhn, G. Opsomer, and A. de Kruif. "Impact of Early Lactation Somatic Cell Count in Heifers on Somatic Cell Counts Over the First Lactation." Journal of Dairy Science 87, no. 11 (November 2004): 3672–82. http://dx.doi.org/10.3168/jds.s0022-0302(04)73506-7.

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14

Schukken, Ynte H., K. E. Leslie, A. J. Weersink, and S. W. Martin. "Ontario Bulk Milk Somatic Cell Count Reduction Program. 1. Impact on Somatic Cell Counts and Milk Quality." Journal of Dairy Science 75, no. 12 (December 1992): 3352–58. http://dx.doi.org/10.3168/jds.s0022-0302(92)78111-9.

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15

Zucali, Maddalena, Luciana Bava, Alberto Tamburini, Milena Brasca, Laura Vanoni, and Anna Sandrucci. "Effects of season, milking routine and cow cleanliness on bacterial and somatic cell counts of bulk tank milk." Journal of Dairy Research 78, no. 4 (August 16, 2011): 436–41. http://dx.doi.org/10.1017/s0022029911000598.

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The aim of the study was to investigate the effects of season, cow cleanliness and milking routine on bacterial and somatic cell counts of bulk tank milk. A total of 22 dairy farms in Lombardy (Italy) were visited three times in a year in different seasons. During each visit, samples of bulk tank milk were taken for bacterial and somatic cell counts; swabs from the teat surface of a group of cows were collected after teat cleaning and before milking. Cow cleanliness was assessed by scoring udder, flanks and legs of all milking cows using a 4-point scale system. Season affected cow cleanliness with a significantly higher percentage of non-clean (NC) cows during Cold compared with Mild season. Standard plate count (SPC), laboratory pasteurization count (LPC), coliform count (CC) and somatic cell count, expressed as linear score (LS), in milk significantly increased in Hot compared with Cold season. Coagulase-positive staphylococci on teat swabs showed higher counts in Cold season in comparison with the other ones. The effect of cow cleanliness was significant for SPC, psychrotrophic bacterial count (PBC), CC and Escherichia coli in bulk tank milk. Somatic cell count showed a relationship with udder hygiene score. Milking operation routine strongly affected bacterial counts and LS of bulk tank milk: farms that accomplished a comprehensive milking scheme including two or more operations among forestripping, pre-dipping and post-dipping had lower teat contamination and lower milk SPC, PBC, LPC, CC and LS than farms that did not carry out any operation.

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Alves, Edmar da Costa, Alice Maria Dahmer, and Aurélio Ferreira Borges. "Total bacterial count and somatic cell count in refrigerated raw milk stored in communal tanks." Brazilian Journal of Food Technology 17, no. 3 (September 2014): 221–25. http://dx.doi.org/10.1590/1981-6723.1114.

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The current industry demand for dairy products with extended shelf life has resulted in new challenges for milk quality maintenance. The processing of milk with high bacterial counts compromises the quality and performance of industrial products. The study aimed to evaluate the total bacteria counts (TBC) and somatic cell count (SCC) in 768 samples of refrigerated raw milk, from 32 communal tanks. Samples were collected in the first quarter of 2010, 2011, 2012 and 2013 and analyzed by the Laboratory of Milk Quality - LQL. Results showed that 62.5%, 37.5%, 15.6% and 27.1% of the means for TBC in 2010, 2011, 2012 and 2013, respectively, were above the values established by legislation. However, we observed a significant reduction in the levels of total bacterial count (TBC) in the studied periods. For somatic cell count, 100% of the means indicated values below 600.000 cells/mL, complying with the actual Brazilian legislation. The values found for the somatic cell count suggests the adoption of effective measures for the sanitary control of the herd. However, the results must be considered with caution as it highlights the need for quality improvements of the raw material until it achieves reliable results effectively.

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17

Wiggans, G. R., and G. E. Shook. "A Lactation Measure of Somatic Cell Count." Journal of Dairy Science 70, no. 12 (December 1987): 2666–72. http://dx.doi.org/10.3168/jds.s0022-0302(87)80337-5.

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18

Olde Riekerink, R. G. M., H. W. Barkema, W. Veenstra, F. E. Berg, H. Stryhn, and R. N. Zadoks. "Somatic Cell Count During and Between Milkings." Journal of Dairy Science 90, no. 8 (August 2007): 3733–41. http://dx.doi.org/10.3168/jds.2007-0001.

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Lukas, J. M., J. K. Reneau, and M. L. Kinsel. "Predicting Somatic Cell Count Standard Violations Based on Herd's Bulk Tank Somatic Cell Count. Part I: Analyzing Variation." Journal of Dairy Science 91, no. 1 (January 2008): 427–32. http://dx.doi.org/10.3168/jds.2007-0647.

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Lukas, J. M., J. K. Reneau, C. Munoz-Zanzi, and M. L. Kinsel. "Predicting Somatic Cell Count Standard Violations Based on Herd's Bulk Tank Somatic Cell Count. Part II: Consistency Index." Journal of Dairy Science 91, no. 1 (January 2008): 433–41. http://dx.doi.org/10.3168/jds.2007-0648.

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Kejdova Rysova, Lucie, Jaromir Duchacek, Veronika Legarova, Matus Gasparik, Anna Sebova, Sona Hermanova, Radim Codl, Jan Pytlik, Ludek Stadnik, and Hana Nejeschlebova. "Dynamics of Milk Parameters of Quarter Samples before and after the Dry Period on Czech Farms." Animals 13, no. 4 (February 17, 2023): 712. http://dx.doi.org/10.3390/ani13040712.

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This study aimed to monitor milk parameters on three different dairy farms in the Czech Republic to describe their readiness for implementing selective dry cow therapy. Fat, protein, casein, lactose, solids-not-fat content, total solids content, freezing point, titratable acidity, and somatic cell count of quarter milk samples collected from tested Holstein cows were evaluated. Associations between the tested parameters, as well as the effects of parity, farm, day of calving, and time of evaluation at dry-off and after calving, were assessed. Values of the leading milk components dynamically changed between dry-off and after calving, but only protein content was significantly affected. The most important parameter of our research, the somatic cell count of quarter milk samples, was also not affected by the time of evaluation. Even though a slight increase in the mean of somatic cell count is expected before the dry period and after calving, at dry-off, we observed 30%, 42%, and 24% of quarters with somatic cell counts above 200,000 cells per mL, while after calving, we observed 27%, 16%, and 18% of quarters with somatic cell counts above 200,000 cells per mL on Farm 1, Farm 2, and Farm 3, respectively. High somatic cell counts (>200,000 cells per mL) indicate bacterial infection, as confirmed by the significant negative correlation between this parameter and lactose content. In addition, a deficient milk fat-to-protein ratio was observed on two farms, which may indicate metabolic disorders, as well as the occurrence of intramammary infections. Despite the above, we concluded that according to the thresholds of somatic cell counts for selective dry cow therapy taken from foreign studies, a large part of the udder quarters could be dried off without the administration of antibiotics. However, it is necessary to set up more effective mechanisms for mastitis prevention.

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Pelmuș, Rodica Ștefania, Horia Grosu, Mihail Alexandru Gras, Cristina Lazăr, and Mircea Cătălin Rotar. "Estimation of the genetic parameters for Somatic Cell Scores in the first lactation of Romanian Black and White cattle." Archiva Zootechnica 25, no. 1 (June 1, 2022): 142–53. http://dx.doi.org/10.2478/azibna-2022-0010.

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Abstract The aim of study was the estimation of the genetic parameters of somatic cell score of Romanian Black and White cattle population. Test-day records of somatic cell count (SCC) of 305 days lactation were from Romanian Black and White cattle population from experimental farm of our institute. The mean of somatic cell count of milk in the first lactation of Romanian Black and White cows was 291966.89. The genetic parameters were estimates with random regression test-day animal model. The heritability for somatic cell score (SCS) ranged from 0.0473 to 0.147. The breeding values for the best cows for somatic cell score were between -35.566 and -191.358. The genetic correlations between somatic cell count milk records test-day were positive. The phenotypic and genetic correlations between somatic cell count and milk yield were negative.

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Volpe, Richard J., Timothy A. Park, Fengxia Dong, and Helen H. Jensen. "Somatic cell counts in dairy marketing: quantile regression for count data." European Review of Agricultural Economics 43, no. 2 (August 30, 2015): 331–58. http://dx.doi.org/10.1093/erae/jbv021.

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Fetrow, John, Kevin Anderson, Susan Sexton, and Ken Butcher. "Herd Composite Somatic Cell Counts: Average Linear Score and Weighted Average Somatic Cell Count Score and Milk Production." Journal of Dairy Science 71, no. 1 (January 1988): 257–60. http://dx.doi.org/10.3168/jds.s0022-0302(88)79550-8.

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Guliński, Piotr, Krzysztof Wyszomierski, and Ewa Salamończyk. "Relationship between somatic cell count and milk performance of Polish Holstein-Friesian cows." Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego 12, no. 1 (March 31, 2016): 17–23. http://dx.doi.org/10.5604/01.3001.0013.6977.

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The average somatic cell count in the milk analysed was 326,000 cells/ml. For the 4 groups of cows distinguished in the study, with daily milk yield of ≤15 kg, 15-25 kg, 25-35 kg and >35 kg, the somatic cell count was 771,000, 393,000, 240,000 and 180,000 cells/ml, respectively. Statistical analysis revealed significant differences in the somatic cell count in milk from cows with different productivity. A highly significant correlation coefficient was obtained for the daily milk yield of the cows and the somatic cell count in the milk (r=−0.81). The negative coefficient indicates that an increase in the quantity of milk was accompanied by a decrease in the somatic cell count in the milk. The regression equation obtained suggests that in the study population a decline in somatic cell count of 100,000 cells/ml was accompanied by an increase in daily milk yield of 3.8 kg. The analysis showed that there is a negative correlation between SCC and milk yield of cows. An increase in milk yield was found to be accompanied by a decrease in the number of somatic cells in 1 ml of milk, which indicates an improvement in its quality.

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Kulpa, Weronika, Anna Sawa, and Małgorzata Jankowska. "Analysis of the relationship between somatic cell count and fertility in Holstein-Friesian cows." Acta Scientiarum Polonorum Zootechnica 16, no. 4 (December 30, 2017): 33–38. http://dx.doi.org/10.21005/asp.2017.16.4.05.

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Luštrek, Barbara, Ana Kaić, Miran Štepec, Jurij Krsnik, and Klemen Potočnik. "Long-term effect of minor genetic changes of milk components on somatic cell count." Journal of Central European Agriculture 19, no. 4 (2018): 798–803. http://dx.doi.org/10.5513/jcea01/19.4.2324.

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Zajac, P., S. Zubricka, J. Capla, and L. Zelenakova. "Fluorescence microscopy methods for the determination of somatic cell count in raw cow’s milk." Veterinární Medicína 61, No. 11 (November 21, 2016): 612–22. http://dx.doi.org/10.17221/222/2015-vetmed.

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Musayeva, K., A. Sederevičius, R. Želvytė, I. Monkevičienė, D. Beliavska-Aleksiejūnė, and R. Stankevičius. "Relationship between somatic cell count and milk casein level obtained by two different methods." Czech Journal of Food Sciences 34, No. 1 (June 3, 2016): 47–51. http://dx.doi.org/10.17221/254/2015-cjfs.

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Safak, T., and A. Risvanli. "Effect of somatic cell count on milk composition and some chemical properties of milk." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 74, no. 6 (December 2022): 1083. http://dx.doi.org/10.1590/1678-4162-12854.

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ABSTRACT Subclinical mastitis is a very important disease for dairy cattle farms. As a result of the deterioration of milk quality, it causes economic losses in enterprises. Milk samples of 180 cows were divided into five groups according to the somatic cell count. Some chemical properties and composition were measured in milk samples. The ratio of solid-non-fat, mineral matter, lactose, and protein decreased as the somatic cell count of the milk increased (P˂0.05). No statistical difference was observed between the fat content of milk and the level of somatic cell count (P˃0.05). Although specific gravity decreases (P˂0.05), the electrical conductivity increases (P˂0.001) in milk with high levels of somatic cell count. The milk quality of dairy cattle deteriorates due to the high somatic cell count. Therefore, regular monitoring of somatic cell count is recommended in dairy farms to monitor changes in fat, protein, solid-non-fat, lactose, and mineral matter ratios as well as some chemical properties that make up the milk composition.

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Pavol, Makovický, Makovický Peter, Nagy Melinda, Rimárová Kvetoslava, and Diabelková Jana. "Genetic Parameters for Somatic Cell Count, Logscc and Somatic Cell Score of Breeds: Improved Valachian, Tsigai, Lacaune and their Crosses/Genetski Parametri Za Broj Somatskih Ćelija, Logscc I Skor Somatskih Ćelija Kod Rasa: Poboljšana Vlaška, Cigaja, Lakon I Njihovih Meleza." Acta Veterinaria 64, no. 3 (September 1, 2014): 386–96. http://dx.doi.org/10.2478/acve-2014-0037.

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Abstract In the last few years there has been increasing emphasis on reducing milk somatic cell count to improve the milk quality in dairy ruminants. Genetic parameters for somatic cell count (SCC), LOGSCC and somatic cell score (SCS) were estimated. About 1193 measurements were included in the analysis for each character of 358 ewes of 9 genotypes. Nine breeds and genotypes were included in these experiments: purebred Improved Valachian (IV), Tsigai (T), Lacaune (LC) ewes, and IV and T crosses with a genetic portion of Lacaune and East Friesian (EF) - 25 %, 50 % and 75 %. Primary data were processed using restricted maximum likelihood (REML) methodology and the multi-trait animal model, using programs REMLF90 and VCE 4.0. Heritability coefficients for somatic cell count were low: h2=0.03, for LOGSCC h2= 0.08 and for somatic cell score h2=0.06. Somatic cell score can be considered for inclusion in a breeding program aimed at reducing somatic cell count and frequency of clinical mastitis in dairy sheep.

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Stott, A. W., G. Gunn, R. Humphry, R. Berry, H. Richardson, and D. Logue. "The economic value of somatic cell counts." Proceedings of the British Society of Animal Science 2000 (2000): 110. http://dx.doi.org/10.1017/s1752756200001113.

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Veerkamp et al. (1998) make the case for including somatic cell count (SCC) in the index of total economic merit (ITEM, Veerkamp et al., 1995) used to rank dairy bulls and cows in the UK for breeding purposes. They go on to describe an empirical method to obtain a suitable economic value for SCC, reflecting the milk quality payment scheme. Since this work was carried out, the milk price has fallen while price penalties against SCC have risen. Bulk-tank SCC (BTSCC) has fallen in response. Some of this improvement may be due to culling cows with high cell counts. The objective of this work was therefore to establish an economic value for somatic cell counts which reflected the milk quality payment scheme and took into account culling strategy.

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Dosogne, H., F. Vangroenweghe, J. Mehrzad, A. M. Massart-Leën, and C. Burvenich. "Differential Leukocyte Count Method for Bovine Low Somatic Cell Count Milk." Journal of Dairy Science 86, no. 3 (March 2003): 828–34. http://dx.doi.org/10.3168/jds.s0022-0302(03)73665-0.

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Mrode, R. A., G. J. T. Swanson, and M. S. Winters. "Genetic parameters for somatic cell count for three dairy breeds in the united kingdom (uk)." Proceedings of the British Society of Animal Science 1995 (March 1995): 128. http://dx.doi.org/10.1017/s1752756200591236.

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Mastitis constitutes a major source of economic loss in the national dairy herd. Although good management practices can produce a major reduction in mastitis, there is considerable interest in the reduction of mastitis through breeding. Somatic cell counts (SCC) have been used as a way of indirectly measuring sub-clinical mastitis within a herd. Since 1991, average cell count is obtained for all herds and this is used to adjust milk payments.Milk recording organisations introduced a cow cell count service in 1990. The data are now available for the preliminary analysis of the usefulness of somatic cell counts. The objective of this study was to estimate genetic parameters for SCC for three major breeds in the UK.

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Mrode, R. A., G. J. T. Swanson, and M. S. Winters. "Genetic parameters for somatic cell count for three dairy breeds in the united kingdom (uk)." Proceedings of the British Society of Animal Science 1995 (March 1995): 128. http://dx.doi.org/10.1017/s0308229600028944.

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Mastitis constitutes a major source of economic loss in the national dairy herd. Although good management practices can produce a major reduction in mastitis, there is considerable interest in the reduction of mastitis through breeding. Somatic cell counts (SCC) have been used as a way of indirectly measuring sub-clinical mastitis within a herd. Since 1991, average cell count is obtained for all herds and this is used to adjust milk payments.Milk recording organisations introduced a cow cell count service in 1990. The data are now available for the preliminary analysis of the usefulness of somatic cell counts. The objective of this study was to estimate genetic parameters for SCC for three major breeds in the UK.

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NOVOTNÁ, KLÁRA, ALENA SVITÁKOVÁ, JANA RYCHTÁŘOVÁ, MILENA FANTOVÁ, and LENKA NOHEJLOVÁ. "Methodology of udder description and the effect on somatic cell count in Czech White Shorthaired goat breed." Medycyna Weterynaryjna 74, no. 8 (2018): 497–500. http://dx.doi.org/10.21521/mw.6108.

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This study evaluated the effect of the linearly described shape traits of goat udders on somatic cell count. In a herd of 487 white shorthaired goats, seven traits (udder symmetry, udder depth, udder width, teat length, teat placement, rear udder attachment and udder cleft) were assessed in relation to somatic cell count in milk. The average somatic cell count was 1.3 mill cells/ml when considering the environmental effects (month and year of performance testing, lactation number. The somatic cell count is influenced by the depth (p = 0.0015) and width (p = 0.0268) of the udder. The results demonstrate that some traits of the udder shape influence the somatic cell count and can be considered as functional traits indicating animal health and herd profitability. After further studies, the methodology for linear description of the udder could be used for other dairy goat breeds, not only in the Czech Republic..

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SAMPLES, DANIEL R., SUSAN L. DILL, RONALD L. RICHTER, and CHARLES W. DILL. "Relationship of Somatic Cell Count and Total Sulfhydryls in Milk." Journal of Food Protection 49, no. 2 (February 1, 1986): 110–11. http://dx.doi.org/10.4315/0362-028x-49.2.110.

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Individual milk samples from 32 cows were analyzed to determine the relationship between somatic cell concentration and total sulfhydryl concentration (cysteine plus reduced cystine). A significant relationship was detected between somatic cell count, which ranged from 1.7 × 104 to 1.0 × 107 cells/ml, and total sulfhydryls per gram of milk protein. The regression equation, total sulfhydryls/g of milk protein = 31.96 + 7.99 (log10 somatic cell count) with r2 = 0.19, was calculated. The mean total sulfhydryl concentration was 73.1 μmol/g of protein. The minimal effect of somatic cell concentration on total sulfhydryl concentration indicates that somatic cell concentration should have little influence on chemical parameters of milk protein determined by sulfhydryl analysis when proper experimental controls are used.

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Coffey, E. M., W. E. Vinson, and R. E. Pearson. "Somatic Cell Counts and Infection Rates for Cows of Varying Somatic Cell Count in Initial Test of First Lactation." Journal of Dairy Science 69, no. 2 (February 1986): 552–55. http://dx.doi.org/10.3168/jds.s0022-0302(86)80437-4.

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Montanhini, Maike Taís Maziero, Deborah Helena Murara Moraes, and Roberto Montanhini Neto. "Influence of somatic cell count on milk components." Revista do Instituto de Laticínios Cândido Tostes 68, no. 392 (2013): 18–22. http://dx.doi.org/10.5935/2238-6416.20130024.

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Brown, C. A., S. J. Rischette, and L. H. Schultz. "Relationship of Milking Rate to Somatic Cell Count." Journal of Dairy Science 69, no. 3 (March 1986): 850–54. http://dx.doi.org/10.3168/jds.s0022-0302(86)80475-1.

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Dunham, James R. "Early lactation somatic cell count should be low." Kansas Agricultural Experiment Station Research Reports, no. 2 (January 1, 1987): 72–73. http://dx.doi.org/10.4148/2378-5977.3040.

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Vaidya, Yati, Shriram Patel, Chaitanya Joshi, Dev Nauriyal, and Anju Kunjadia. "Somatic Cell Count: A Human Breast Wellbeing Indicator." Journal of Breast Health 13, no. 2 (March 31, 2017): 88–93. http://dx.doi.org/10.5152/tjbh.2017.3328.

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Rhoda, David A., and José C. F. Pantoja. "Using Mastitis Records and Somatic Cell Count Data." Veterinary Clinics of North America: Food Animal Practice 28, no. 2 (July 2012): 347–61. http://dx.doi.org/10.1016/j.cvfa.2012.03.012.

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Zecconi, Alfonso, Francesca Dell’Orco, Diego Vairani, Nicoletta Rizzi, Micaela Cipolla, and Lucio Zanini. "Differential Somatic Cell Count as a Marker for Changes of Milk Composition in Cows with Very Low Somatic Cell Count." Animals 10, no. 4 (April 1, 2020): 604. http://dx.doi.org/10.3390/ani10040604.

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The recent availability of a high-throughput milk analyzer performing a partial differential somatic cell count (DSCC) opened new opportunities in investigations on bovine udder health. This analyzer has a potential limitation on the accuracy of measurements when the somatic cell count (SCC) is below 50,000 cells/mL, values characterizing a good proportion of lactating cows in many herds. We obtained data for cows below this threshold, assessed the repeatability of these measurements and investigated the relationship between DSCC and udder health, milk composition and yield. Overall, 3022 cow milk test records performed on a Fossomatic™ 7/DC (Foss A/S, Hillerød, Denmark) were considered; 901 of them had an SCC ≤ 50,000 cells/mL. These latter samples were analyzed by qPCR to identify the presence of bacteria. Overall, 20.75% of the samples (187) were positive. However, the health status did not have any significant association with DSCC. The analysis of the association of DSCC on milk fat, protein and casein showed a significant decrease in their proportions as the DSCC increased, whereas it was not observed for milk yield and lactose. Therefore, DSCC in very low SCC cows may be suggested as a marker to identify early changes in milk composition.

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Visciano, Pierina, and Maria Schirone. "Assessment of Quality and Safety Criteria of Raw Milk Samples from Different Dairy Farms." Microbiology Research 13, no. 3 (August 28, 2022): 620–25. http://dx.doi.org/10.3390/microbiolres13030044.

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Ten dairy farms supplying raw milk to the dairy industry were investigated to determine compliance with the safety criteria (plate count at 30 °C and somatic cell count) of Regulation (EC) 853/2004. The relationship of such criteria with lipid and protein percentages was also evaluated. The results demonstrated a great variability due to the different management systems of each dairy farm, with regard to the milking hygiene, the health status of the animals, and the prevention measures against mastitis. Moreover, in some dairy farms, the somatic cell counts were positively correlated with the quality components of raw milk as well as the plate count at 30 °C.

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Siatka, K., A. Sawa, M. Bogucki, D. Piwczynski, and S. Krezel-Czopek. "The relationships between the somatic cell counts in the milk and the fertility of Polish Holstein-Friesian cows." Veterinární Medicína 64, No. 10 (October 26, 2019): 433–39. http://dx.doi.org/10.17221/34/2019-vetmed.

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The aim of the study was to analyse the relationship between the somatic cell counts in the milk (the udder health status indicator) and the cow’s fertility, taking the influence of the selected factors into account. The udder health status was determined based on the somatic cell count of the milk from 88 745 test-day records from 55 685 Polish Holstein-Friesian cows. The test-day measurements were made up to 30 days before the first insemination, during the period up to 180 days of the first and second lactation. Because the somatic cell count showed high variation and is not normally distributed, the data were transformed to the natural logarithm scale. Based on the results of the statistical analysis, it was shown that with the increase in the number of somatic cells in the milk, the calving intervals were extended by 11 days (P ≤ 0.01), the service period by around 4 days (P ≤ 0.05), the increase in the services per conception by 0.11 (P ≤ 0.01). There was a statistically significant correlation, weak on the Guilford scale, between the natural logarithm of the somatic cell count and the fertility of the cows: the calving interval – CI (r = 0.050**, P ≤ 0.01), service period – SP (r = 0.016**) end services per conception – SPC (r = 0.019**). Monitoring the number of somatic cells in the milk could contribute to improving the fertility of the cows in particular: in the second lactation in the double lactation (for the CI (r = 0.059**)); in herds with a production level of 7000–9000 kg of milk (for the CI (r = 0.055**), the SP (r = 0.022**) and the SPC (r = 0.024**)); the daily productivity of > 40 kg (for the CI (r = 0.052**), the SP (r = 0.033**) and the SPC (r = 0.029**)), the number of cows in the herd of > 200 (for the CI (r = 0.061**), the SP (r = 0.034**) and the SPC (r = 0.033**)), in the autumn season of the first insemination (for the CI (r = 0.072**), the SP (r = 0.027**) and the SPC (r = 0.031**)). The magnitude of these correlations varied within the classes of the factors such as the daily production level, the age of cows´ lactation number, the season of the first insemination, the herd production level, and the herd size. It appears that the somatic cell count results obtained from the periodic milk recording, considered as an indirect measure of the udder health and used when deciding on the mastitis treatment, could be a useful tool for controlling the fertility in the cows.

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HOGAN, J. S., K. H. HOBLET, K. L. SMITH, D. A. TODHUNTER, P. S. SCHOENBERGER, W. D. HUESTON, D. E. PRITCHARD, et al. "Bacterial and Somatic Cell Counts in Bulk Tank Milk from Nine Well Managed Herds1." Journal of Food Protection 51, no. 12 (December 1, 1988): 930–34. http://dx.doi.org/10.4315/0362-028x-51.12.930.

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Factors associated with bulk tank milk bacterial and somatic cell counts were investigated for one year on nine well managed dairies. Geometric mean total bacterial count among dairies was 4.4 × 103 colony cfu/ml. Geometric mean bulk tank milk somatic cell counts among herds was 265 × 103ml. Bacterial counts in bulk tank milk were correlated with rates of coliform and environmental streptococcal clinical mastitis cases. Rates of total clinical cases were also correlated with bulk tank milk somatic cell counts. Correlations were measured among bulk tank milk bacterial counts and gram-negative bacterial, coliform, Klebsiella species, and streptococcal counts in materials used to bed lactating cows. Total bacterial and staphylococcal bulk tank milk counts increased when synthetic rubber liners were used greater than 800 quarter milkings. Correlations measured indicated that monitoring bulk tank milk may be an effective means of detecting management changes in herds with low bacterial and milk somatic cell counts.

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Stefanakis, A., C. Boscos, C. Alexopoulos, and F. Samartzi. "Frequency of subclinical mastitis and observations on somatic cell counts in ewes' milk in northern Greece." Animal Science 61, no. 1 (August 1995): 69–76. http://dx.doi.org/10.1017/s1357729800013539.

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AbstractSomatic cell counting by the Coulter Counter method, California mastitis test and bacteriological examination were performed on milk samples taken at fortnightly intervals throughout lactation from healthy primiparous and iniiltiparous ewes of the Chios and Karagouniki breeds and from healthy ewes in five grazing flocks in northern Greece.The proportion of the bacteriologically positive milk samples was 0·22. The prevalence of subclinical mastitis ranged, between the flocks, from 29 to 43% of the ewes. Subclinical mastitis occurred more frequently in Karagouniki than in Chios eives and in multiparous than in primiparous ewes of both breeds. Coagulase-negative staphylococci and S. aureus were isolated in 44 and 33% of the bacteriologically postive samples, respectively. No parity, breed or flock differences in normal somatic cell count were noticed, but stage of lactation influenced normal somatic cell count both in primiparous and multiparous ewes. The results of this investigation also suggest that (a) ovine milk samples with somatic cell count more than 1000 × 103 cells per ml, should be tested bacteriologically, (b) somatic cell count values between 1000 and 2000 × 103 cells per ml should cause suspicion about the presence of coagulase-negative staphylococci in the milk, and (c) the presence of S. aureus in ewe's milk results in a significant increase in somatic cell count, but the wide range of the values does not permit us to suggest any threshold value. The significant correlation between the results of the Coulter Counter somatic cell count method and the Califortiia mastitis test, indicates that the latter can be used for the determination of somatic cell count in ewe's milk.

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Memisi, N., V. Bogdanovic, Z. Tomic, A. Kasalica, M. Zujovic, N. Stanisic, and N. Delic. "Variability and correlation between basic quality parameters of raw cow milk." Biotehnologija u stocarstvu 27, no. 3 (2011): 959–67. http://dx.doi.org/10.2298/bah1103959m.

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In this paper the results of the analysis of the milk somatic cell count are presented, as well as correlation between the somatic cell count and content of certain chemical parameters in milk (milk proteins, fat, lactose and dry matter without fat) determined in collective samples of milk obtained from cows reared in intensive rearing system, during two production years. The research was carried out by control of collective milk samples from cows reared on family holdings. Somatic cell count, as well as the chemical quality of milk, were controlled daily in the laboratory for raw milk in dairy plant AD ?Mlekara? - Subotica using the apparatus CombiFoss 6200 FC. In this investigation, statistically significant correlation (P<0,001) between all observed milk parameters was determined. Positive, weak and statistically highly significant correlation between the content of milk fat and proteins in milk and somatic cell count was established. It was also established that the variability of chemical parameters of milk and somatic cell count is also under the influence of different factors, such as: month of control, year of the research and farm.

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Gulyas, L., and J. Ivancsics. "Zusammenhänge zwischen der somatischen Zeitzahl und einigen eutermorphologischen Eigenschaften." Archives Animal Breeding 44, no. 1 (October 10, 2001): 15–22. http://dx.doi.org/10.5194/aab-44-15-2001.

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Abstract. Title of the paper: Relationship between the somatic cell count and certain udder-morphologic traits The authors carried out their udder-morphologic (the shape, hanging (up) and depth of udder; the length and diameter of teats and the space between them; the length of ductus papillaris) research in a high blood-share black-spotted Holstein-Friesian (R3-R4) cow population in a West Hungarian large dairy farm with a stock of 500 cows, The results of examinations carried out by groups offspring draw the attention to the close correlation (r = 0.62–0.88) between certain udder-morphologic traits and the pigmentation of teats as well as between the values of somatic cell count. Furthermore, the authors observed that there is also a close correlation (r = −0.58–−0.89 between the length of teat duct (ductus papillaris) and the values of somatic cell count. All biological characteristics (udder-morphologic, pigmentation of teats, length of ductus papillaris) together with those influencing somatic cell count are to be taken into account in the selection work having the aim of decreasing somatic cell count.

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Journal articles on the topic 'Somatic cell count'

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