Relationship between somatic cell count and milk performance of Polish Holstein-Friesian cows

2016 ◽  
Vol 12 (1) ◽  
pp. 17-23
Author(s):  
Piotr Guliński ◽  
Krzysztof Wyszomierski ◽  
Ewa Salamończyk
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Milk Yield ◽  
Somatic Cell Count ◽  
Holstein Friesian ◽  
Study Population ◽  
Milk Performance ◽  
Daily Milk Yield ◽  
Daily Milk ◽  
Friesian Cows

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.

scholarly journals Effect of temperament of Jersey and Holstein Friesian cows on milk production traits and somatic cell count (Short Communication)

2011 ◽  
Vol 54 (6) ◽  
pp. 594-599 ◽  
Author(s):  
M. Orbán ◽  
K. K. Gaál ◽  
F. Pajor ◽  
A. Szentléleki ◽  
P. Póti ◽  
...  
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Milk Production ◽  
Milk Yield ◽  
Somatic Cell Count ◽  
Production Traits ◽  
Holstein Friesian ◽  
Daily Milk Yield ◽  
Daily Milk ◽  
Friesian Cows

Abstract. The aim of present study was to investigate the relationships between temperament score and milk production, as well as somatic cell count in a herd of Jersey and Holstein Friesian breeds. The temperament of 283 Jersey and 69 Holstein Friesian cows were assessed (scored) by the temperament score test (behaviour of animals was assessed in a 5-score system (1: calm, 5: nervous) while spending 30 s on the scale during weighing). The daily milk yield, fat, protein content and somatic cell count were also investigated in this study. Our investigation did not reveal any correlation between daily milk yield and temperament score. But milk somatic cell count was showed positive moderate relation with the temperament scores of Jersey (rrank=0.67; P=0.0001) and Holstein Friesian (rrank=0.66; P=0.0001) cows. Calmer cows had lower somatic cell count (Jersey: 135.40×103/cm3; Holstein Friesian: 176.07×103/cm3) compared to the more temperamental cows (Jersey: 540.44×103/cm3; P=0.0001; Holstein Friesian: 744.91×103/cm3; P=0.0001, resp.).

scholarly journals THE INFLUENCE OF SIRES ON MILK YIELDS AND ITS QUALITY IN STALL HOUSING OF COW

2020 ◽  
Vol 59 ◽  
pp. 97-104
Author(s):  
I. D. Filipenko
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Milk Yield ◽  
Analysis Of Variance ◽  
Somatic Cell Count ◽  
State Farm ◽  
The Difference ◽  
Daily Milk Yield ◽  
Physical And Chemical ◽  
Daily Milk

The results of the research on the influence of genetic factors on milk productivity and quality composition of milk in the cows at the state farm “Hontarivka” of the Institute of Animal Science, NAAS, Kharkiv region have been given in the article. According to the analysis of variance the factor “line” significantly influenced all indicators of daily milk yields (р < 0,001). However, the degree of the influence of this factor was not high. The factor “line” had the greatest effect on the content of protein in milk – 2.41% and it had the least influence on the somatic cell count in milk. When studying the average physical and chemical values of milk, it was found that the highest average daily milk yield was in the cows of the Hanover line (20.4 kg) and the lowest – in the cows of the Cavaler and Chiff lines (19.6 kg). The cows of Bella line had the best performance as for the content of fat in milk – 4.31%, while the percentage of fat in the milk of Chiff line cows was only 3.98%. The cows of Elevation line had the maximum protein content in milk (3.28%), while the cows of Hanover line had a minimum content of protein in milk – 2.96%. The milk of the animals differed by the somatic cell count, the average content of which varied from 314 000/ cm3 in the milk of cows of the Bell line to 530 000/ cm3 in the animals of the Hanover line. Negative values of the coefficients of the correlation of daily milk yields with the content of fat (–0.225), protein (–0.305), the somatic cell count in milk (–0.134) were obtained. The positive relationship was revealed between the content of fat and protein in milk (+0.282). The low positive connection was also detected between the somatic cell count and the content of protein (+0.061) and the connection with the percentage of fat in milk was lower (+0.021). The revealed dependencies have indicated that the selection aimed at the increase in milk yield should take into consideration the content of fat and protein in milk. However, it does not exert a negative influence on such an indicator of milk quality as the somatic cell count. By the results of the analysis of variance, it has been found that the factor “sire’ significantly influenced the daily milk yield, the content of fat and protein, the number of somatic cells in the milk of their daughters (р < 0.001). Due to the effect of this factor on the daily milk yields the following results were obtained: milk yield – 2.11%, content of fat – 4.21%, the content of protein – 8.2%, somatic cell count – 1.14%. When comparing the average values of the parameters under investigation it has been found that the daily milk yields of some bulls ‘daughters varied from 18.9 kg to 21.2 kg of milk. The daughters of the bull K. Stallion 50750432 were the most productive by the milk yields (p < 0.001), they exceeded by 6.5 – 12.2% the daughters of the bull Chapman 0347903595, Eldorado 579136891, Dante 580024972 and Besson 393035302. As for the content of fat in milk the differences between the best and the worst parameters of the daughters of the bulls under investigation were 0.39%. In this case, the daughters of the sire Benjamin 7866444 significantly exceeded (p < 0.001) the daughters of the sires Besson 393035302 and Eldorado 579136891 by the above parameter. The daughters of the bulls B. R. Harmoni 9498163 and Prento 1402472395 were the best by the content of protein.in milk, they exceeded the daughters of the bulls Belissar 365235897 and Chapman 0347903595 by 0.27–0.35% (р < 0,001). The milk of the daughters of the above bulls was different by the somatic cell count. The average value of this parameter varied from 288 000/ cm3 in the milk of the daughters of Chapman 0347903595 to 530 000/ cm3 in the daughters of Belissar 365235897. The difference between all minimum and maximum average parameters was highly probable (P < 0.001). If we consider the number of cases of diagnosis of mastitis in the daughters of different bulls, then it was proportional to the average values of the somatic cell count in the milk. The incidence of mastitis among the cows ranged from 11.6 ± 2.71% in the daughters of the bull Chapman 0347903595 to 22 ± 4.16% in the daughters of Belissar 365235897. It should be noted that in accordance with the above data the difference between the parameters of the physical and chemical properties of milk and the incidence of mastitis obtained in the cows of different lines was less than that in the daughters of different sires. Therefore, it is advisable to make the assessment and selection by some sires rather than by their lineage.

The effect of lactation number and lactation stage on milk yield, on the composition and on the microbiological properties of raw cow milk in a Hungarian dairy farm

2021 ◽  
Vol 67 (2) ◽  
pp. 3431-3440
Author(s):  
Flóra Mária Petróczki ◽  
Béla Béri ◽  
Ferenc Peles
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Protein Content ◽  
Milk Yield ◽  
Somatic Cell Count ◽  
Dairy Farm ◽  
Plate Count ◽  
Daily Milk Yield ◽  
Daily Milk ◽  
Microbiological Properties

Changes in the composition and hygienic properties of milk affect producer price, so it is essential for the responsible dairy farmer to collect information on changes in these parameters due to various factors. In their study, the authors seek to answer the question whether there is a fluctuation in the daily milk yield of cows and in the composition (fat and protein content) and microbiological properties (somatic cell count, total plate count, coliform and S. aureus count) of raw cow’s milk in primiparous and multiparous cows or at different stages of their lactation. Based on the data of a Hungarian large-scale dairy farm, it was found that there was no difference in the fat and protein content of the milk, but the daily milk yield was higher in the case of multiparous cows and, compared to the milk of primiparous cows, their milk had a higher somatic cell count and larger amounts of coliform bacteria. The daily milk yield decreased in the successive stages of lactation, but the fat and protein content of the milk increased, which is presumably due to the concentrating effect of the decreasing milk yield. No significant change was observed in the colony count of microorganisms at the different stages of lactation.

scholarly journals Factors Affecting Mastitis Cases and the Correlations of Somatic Cell Count with Milk Production in Holstein Cows

2020 ◽  
Vol 8 (1) ◽  
pp. 171
Author(s):  
Savaş Atasever ◽  
Violetta Tóth ◽  
Edit Mikóné Jónás
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Milk Production ◽  
Milk Yield ◽  
Somatic Cell Count ◽  
Holstein Cows ◽  
Factors Affecting ◽  
Daily Milk Yield ◽  
Production Losses ◽  
Daily Milk

The aim of this study was to determine the factors affecting mastitis cases and to estimate the correlations of somatic cell count (SCC) with milk yield in Holstein cows. The study was conducted in two private dairy farms in Hódmezõvásárhely, South-Hungary. A total of 882 Holstein cows were tested by SCC, fat and protein contents of milk monthly intervals. To test milk SCC and components, two groups were designed, and to examine effect of parity on first mastitis day (FMD) and total mastitis cases (TMC), four groups were divided. It was noted that higher SCC caused to higher TMC. While cows had higher protein content exposed to higher FMD and TMC, cows had lower daily milk yield (DMY) had higher values by mastitis case parameters. In parity evaluation, only primiparous cows had statistically lower TMC. The cows with lower SCC were found in advance in change of milk yield (CMY) up to 6.858±0.947 kg. A negative correlation coefficient was estimated between SCC and DMY. Finally, monitoring SCC of milk is offered to prevent milk production losses and new mastitis occurrences in the herds.

scholarly journals Analysis of lactation curves, milk constituents, somatic cell count and urea in milk of cows by the mathematical model of Wood

2011 ◽  
Vol 80 (1) ◽  
pp. 73-80 ◽  
Author(s):  
Marcin Gołębiewski ◽  
Piotr Brzozowski ◽  
Łukasz Gołębiewski
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Milk Yield ◽  
Somatic Cell Count ◽  
Dry Matter ◽  
Dairy Herd ◽  
Sufficient Information ◽  
Holstein Friesian ◽  
Lactation Curve ◽  
Daily Milk Yield

Analysis of lactation curves of milk, basic milk constituents, somatic cell count and urea in milk provide sufficient information for efficient dairy herd management and also is significant in genetic evaluation. The aim of the study was to apply the Wood’s model to fit lactation curve of milk yield as well as fat, protein, dry matter, lactose, somatic cell count and urea in cows’ milk. This study was conducted on dairy cows of Montbéliard (n = 686) and Polish Holstein-Friesian (n = 933) breeds. We analyzed data on the above mentioned milk constituents in the samples collected between 1995 and 2007. Data from 5,034 lactations were collected. Type C1 of the curve typical for standard lactation was the most frequent when daily milk yield, lactose and urea were analyzed. However, curves of fat protein and dry matter were described as type C4. The Wood’s model showed the highest accuracy when milk yield and protein content were investigated; poor fitting was observed for fat content. The Wood’s model brought better accuracy for Polish Holstein-Friesian cows compared to Montbéliards. Precision of mathematical models fitting is R2 (adjusted determination coefficient). The highest values of R2 were noticed when lactation and protein curves were investigated. The lowest R2 was determined for urea and somatic cell count.

scholarly journals A new somatic cell count index to more accurately predict milk yield losses

2017 ◽  
Vol 60 (4) ◽  
pp. 373-383 ◽  
Author(s):  
Janez Jeretina ◽  
Dejan Škorjanc ◽  
Drago Babnik
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Milk Yield ◽  
Somatic Cell Count ◽  
Yield Loss ◽  
Early Stage ◽  
Economic Losses ◽  
Yield Losses ◽  
Daily Milk Yield ◽  
Daily Milk

Abstract. Intramammary infection and clinical mastitis in dairy cows leads to considerable economic losses for farmers. The somatic cell concentration in cow's milk has been shown to be an excellent indicator for the prevalence of subclinical mastitis. In this study, a new somatic cell count index (SCCI) was proposed for the accurate prediction of milk yield losses caused by elevated somatic cell count (SCC). In all, 97 238 lactations (55 207 Holstein cows) from 2328 herds were recorded between 2010 and 2014 under different scenarios (high and low levels of SCC, four lactation stages, different milk yield intensities, and parities (1, 2, and  ≥  3). The standard shape of the curve for SCC was determined using completed standard lactations of healthy cows. The SCCI was defined as the sum of the differences between the measured interpolated values of the natural logarithm of SCC (ln(SCC)) and the values for the standard shape of the curve for SCC for a particular period, divided by the total area enclosed by the standard curve and upper limit of ln(SCC)  =  10 for SCC. The phenotypic potential of milk yield (305-day milk yield – MY305) was calculated using regression coefficients estimated from the linear regression model for parity and breeding values of cows for milk yield. The extent of daily milk yield loss caused by increased SCC was found to be mainly related to the early stage of lactation. Depending on the possible scenarios, the estimated milk yield loss from MY305 for primiparous cows was at least 0.8 to 0.9 kg day−1 and for multiparous cows it ranged from 1.3 to 4.3 kg day−1. Thus, the SCCI was a suitable indicator for estimating daily milk yield losses associated with increased SCC and might provide farmers reliable information to take appropriate measures for ensuring good health of cows and reducing milk yield losses at the herd level.

scholarly journals Effect of the temperament of dairy cows on lifetime production efficiency

2015 ◽  
Vol 58 (1) ◽  
pp. 193-197 ◽  
Author(s):  
W. Neja ◽  
A. Sawa ◽  
M. Jankowska ◽  
M. Bogucki ◽  
S. Krężel-Czopek
Keyword(s):  
Milk Yield ◽  
Production Efficiency ◽  
Dairy Farmers ◽  
Holstein Friesian ◽  
Milk Performance ◽  
Cattle Breeders ◽  
Daily Milk Yield ◽  
Efficiency Data ◽  
Daily Milk ◽  
Friesian Cows

Abstract. The aim of this study was to analyse the effect of the temperament of cows on their lifetime production efficiency. Data on milk performance, longevity and culling reasons of 11 629 Polish Holstein-Friesian cows were extracted from the SYMLEK database. Using the methodology of the Polish Federation of Cattle Breeders and Dairy Farmers, cow temperament was assessed as follows: 1 – calm; 2 – normal; and 3 – excitable or aggressive. Most cows showed a normal temperament (89.52 %). Over successive years of the evaluation, there were increases in the proportion of cows with a calm (from 2.98 to 6.85 %) and excitable temperament (from 7.50 to 8.27 %). Temperament was found to have a highly significant effect on first lactation milk yield, first lactation daily milk yield, milk yield per day of age, and milk yield per day of productive life. In cows with a calm temperament, first lactation milk yield was 621 kg higher than in cows with a normal temperament and 329 kg higher compared to excitable (aggressive) cows.

scholarly journals Holstein-Friesian milk performance in organic farming in North Spain: Comparison with other systems and breeds

2017 ◽  
Vol 15 (1) ◽  
pp. e0601 ◽  
Author(s):  
Ruth Rodríguez-Bermúdez ◽  
Marta Miranda ◽  
Inmaculada Orjales ◽  
Francisco Rey-Crespo ◽  
Nieves Muñoz ◽  
...  
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Organic Farming ◽  
Somatic Cell Count ◽  
Organic Production ◽  
Productive Performance ◽  
Organic Systems ◽  
Holstein Friesian ◽  
Milk Performance ◽  
Friesian Cows

Organic systems are highly dependent on the environment and require animals well adapted to local conditions. In Spain, organic dairy farmers are not satisfied with the productive performance of their herds and ask for technical advice to obtain suitable animals for organic systems. The milk productive performance (milk yield, nutritional composition, and somatic cell count) of Holstein-Friesian cows in organic farming in North Spain compared with conventional farms has been analysed. When breed diversity was present in the same organic farm, Holstein-Friesian milk performance was compared with other breeds and/or crosses. Holstein-Friesian cows in organic farming produce slightly less milk than grazing conventional cows, but milk was similar in composition and somatic cell count across systems. The limited data from organic farms where breed diversity exists indicate that Holstein-Friesian cows produce numerically more milk than other breeds and crosses but with statistically lower protein content. Considering that in Spain organic milk production is mostly used for liquid milk consumption and that the payment system is based only on milk volume, Holstein-Friesian cows would better fit the farmer interests than other breeds or crosses. However, in addition to productive performance, reproductive efficiency, animal health and consumer’s preferences should be fully considered when selecting a breed for organic production. If Holstein-Friesian was the selected breed, efforts should be made to identify cows within the breed that are best adapted to organic conditions. New productive, reproductive, nutritional and economic studies would be needed to develop a genetic merit index for organic systems.

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