Association of California Mastitis Test Scores with Intramammary Infection Status in Lactating Dairy Cows Admitted to a Veterinary Teaching Hospital

A commercial herd of approximately 550 lactating dairy cows was divided into two groups: one was designated as the Control Group and was milked in a routine fashion with conventional milking machines; the other was designated as the QTO Group and was milked with machines equipped with automatic quarter-take-off devices. Certain tests and observations were made on each animal in both groups at approximately 5-week intervals for 22 weeks. The QTO Group of animals was, by chance selection, at a slight disadvantage in terms of health of the udders at the outset of the study. The disadvantage was overcome quickly and, during the balance of the study, the QTO-milked animals maintained an advantage over the control animals. The advantages in favor of the animals milked with the QTO devices included fewer quarters infected with mastitis pathogens, reduced intramammary irritation as evidenced by lower scores for the California Mastitis Test, and fewer teats showing erosions or other abnormalities of the orifice. The differences were significant (P <0.01). Operators of the machines equipped with QTO devices walked 26.6% less during a routine milking than the operators of the conventional milking machines. The difference was significant (P <0.05).

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Effective Treatment of Bovine Mastitis with Intramammary Infusion of Angelica dahurica and Rheum officinale Extracts

Evidence-based Complementary and Alternative Medicine ◽

10.1155/2019/7242705 ◽

2019 ◽

Vol 2019 ◽

pp. 1-8 ◽

Cited By ~ 5

Author(s):

Wan-Ting Yang ◽

Chun-Yen Ke ◽

Wen-Tien Wu ◽

Ru-Ping Lee ◽

Yi-Hsiung Tseng

Keyword(s):

Dairy Cows ◽

Bovine Mastitis ◽

Economic Loss ◽

Viable Count ◽

Lower Probability ◽

Angelica Dahurica ◽

California Mastitis Test ◽

Lactating Dairy Cows ◽

Before And After ◽

Causative Agents

Mastitis in dairy cattle is a highly prevalent infectious disease, causing considerable economic loss worldwide. In this study, we used Angelica dahurica and Rheum officinale extracts (designated as Yi-Xiong-Tang, YXT) for mastitis treatment. California mastitis test (CMT) was performed and 67 mastitis udder quarters were identified among 179 lactating dairy cows. These 67 mastitis udder quarters were subjected to treatments by intramammary infusion of YXT twice a day for three consecutive days. The mastitis indicators including clots, lactate dehydrogenase (LDH), TNF-α, IL-6, IL-8, and total viable count of bacteria (TVC) in milk were examined before and after the YXT treatment to evaluate its effectiveness. Levels of mastitis indicators from mastitis udder quarters were elevated. After YXT treatment, normal levels of these indicators were restored: TVC, 2.10 × 104 – 9.20 × 106 CFU/mL; clots, 6.56 ± 0.43 mg/mL; LDH, 181.0 ± 18.55 U/L; TNF-α, 0.02 ± 0.02 ng/mL; IL-6, 41.4 ± 11.46 pg/mL; and IL-8, 1.85 ± 0.60 pg/mL. Compared with the antibiotic therapy, YXT treatment has a shorter treatment course and might have lower probability for the causative agents to develop drug resistance because YXT is in fact a cocktail containing multiple active ingredients.

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Somatic cell counts in relation to infection status of the goat udder

Journal of Dairy Research ◽

10.1017/s002202990003020x ◽

1992 ◽

Vol 59 (1) ◽

pp. 21-28 ◽

Cited By ~ 26

Author(s):

Despina Kalogridou-Vassiliadou ◽

Konstantinos Manolkidis ◽

Afrodite Tsigoida

Keyword(s):

Test Scores ◽

Significant Positive Correlation ◽

Goat Milk ◽

Intramammary Infection ◽

Somatic Cell Counts ◽

Milk Samples ◽

Stage Of Lactation ◽

California Mastitis Test ◽

Cell Counts ◽

Major Pathogens

SummaryBacteriological analyses, cell counts using the Fossomatic method and California Mastitis Test were performed on 1523 goat milk samples taken aseptically at monthly intervals throughout lactation from three goat herds. Of the goat udders, 81·4% were infected, minor pathogens being the most frequent isolates (65·7%). Differences in the level of infection by minor pathogens were found betwccn herds. Cell counts were influenced by stage of lactation and intramammary infection. Cell counts < 106 cells/ml were found in 80% of milk samples infected by major pathogens and in 45% infected by minor pathogens. About 81% of udders infected with major pathogens gave California Mastitis Test scores of 2 and 3, compared with 20% for uninfected goats. A high proportion (65%) of udders infected with minor pathogens also produced scores of 2 and 3. A significant positive correlation was found between the California Mastitis Test and cell counts. The use of cell counts for the detection of abnormal goat milk is discussed.

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California mastitis test scores as indicators of subclinical intra-mammary infections at the end of lactation in dairy cows

Research in Veterinary Science ◽

10.1016/j.rvsc.2010.10.006 ◽

2012 ◽

Vol 92 (1) ◽

pp. 13-17 ◽

Cited By ~ 21

Author(s):

A.L. Bhutto ◽

R.D. Murray ◽

Z. Woldehiwet

Keyword(s):

Dairy Cows ◽

Test Scores ◽

California Mastitis Test

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PREVALENCE AND RISK FACTORS OF MASTITIS IN LACTATING DAIRY COWS AT BAGHABARI MILK SHED AREA OF SIRAJGANJ

Bangladesh Journal of Veterinary Medicine ◽

10.3329/bjvm.v8i2.11200 ◽

2012 ◽

Vol 8 (2) ◽

pp. 157-162 ◽

Cited By ~ 2

Author(s):

MA Islam ◽

AKMA Rahman ◽

SA Rony ◽

MS Islam

Keyword(s):

Risk Factors ◽

Dairy Cows ◽

Cross Sectional Study ◽

Age Group ◽

Cross Sectional ◽

California Mastitis Test ◽

Lactating Dairy Cows ◽

Parity Number ◽

White Side ◽

Indirect Tests

A cross-sectional study was carried out on a total of 330 lactating dairy cows at Baghabari, Sirajganj to determine the prevalence and risk factors of clinical (CM) and sub-clinical (SCM) mastitis using California Mastitis Test (CMT), White Side Test (WST) and Surf Field Mastitis Test (SFMT) during the period from July to December, 2009. Of all cows tested, 2.12% (n=7) cows were affected with CM and 37.58% (n=124), 36.67% (n=121) and 35.15% (n=116) cows showed positive reaction for SCM by CMT, WST and SFMT respectively. The overall prevalence of SCM was 36.46% and CMT showed better performance in detecting SCM (37.58%) among three indirect tests used. The prevalence of SCM was significantly (p<0.01) higher (47.61%) in age group more than 13 years than others. A significantly (p<0.01) higher prevalence of SCM was observed in parity number more than 11 than others. The prevalence of SCM was significantly (p<0.01) higher (37.12%) in cows yielding >10L of milk than others. The prevalence of SCM was highest in late lactation (72.45%) followed by early (40%) and mid lactation (27.56%). Herds having 16 or more milch cows had significantly (p<0.05) higher SCM than those with fewer milch cows.DOI = http://dx.doi.org/10.3329/bjvm.v8i2.11200 Bangl. J. Vet. Med. (2010). 8 (2) : 157-162

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Subclinical mastitis: Prevalence and risk factors in dairy cows in East Java, Indonesia

Veterinary World ◽

10.14202/vetworld.2021.2102-2108 ◽

2021 ◽

pp. 2102-2108

Author(s):

Himmatul Khasanah ◽

Hidayat Bambang Setyawan ◽

Roni Yulianto ◽

Desy Cahya Widianingrum

Keyword(s):

Risk Factors ◽

Dairy Cows ◽

Management Practices ◽

Management Practice ◽

Subclinical Mastitis ◽

Economic Losses ◽

Multinomial Regression ◽

California Mastitis Test ◽

Lactating Dairy Cows ◽

Lactation Stage

Background and Aim: Subclinical mastitis (SCM) is a disease that frequently attacks lactating dairy cows and possibly decreases production, causing economic losses to farmers. This study aimed to define the prevalence of SCM and risk factor-associated related management practice by dairy farmers in East Java, Indonesia. Materials and Methods: The milk sample per quarter of individual lactating Friesian–Holstein cows (592 samples) was collected from 148 cows from 62 selected farms in the region with high dairy cattle populations in Malang, Sidoarjo, Mojokerto, Probolinggo, Pasuruan, Lumajang, Jember, and Banyuwangi. SCM determination was performed using the California mastitis test. A survey including field observation and interviews with farmers was conducted to find out the management practices of the selected farms. The analysis of risk factors was conducted by multinomial regression using the IBM SPSS version 26.0 (IBM SPSS Statistics, Chicago, USA). Results: In addition, 68.18% and 66.72% at the cow and quarter levels, respectively, of the lactating dairy cows examined had SCM. In multinomial regression, four variables were significantly given impact in association with the SCM prevalence in identifying related lactation stage (odds ratio [OR]: 1-2 months=5.67, 2-6 months=9.435), teat wiping after milking (OR=42.197), house cleanliness (OR: dirty=0.120, moderate=0.527), and location (regencies) of raising the cows (OR: Sidoarjo=0.076, Mojokerto=0.165, Jember=1.210, Probolinggo=3.449, Lumajang=1.638, Malang=1.210, and Pasuruan=0.681). Conclusion: The SCM prevalence in East Java is relatively high and a threat to the dairy industry's performance. This study found a significant association with SCM that needs to be considered in the practice of management to prevent and control SCM. However, the finding also suggested that hygienic management practices performed by farmers need to be improved to reduce SCM incidents.

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