No effect of a dietary zinc proteinate on clinical mastitis, infection rate, recovery rate and somatic cell count in dairy cows

Abstract Baicalin is a flavonoid that has an influence on molecular processes. It possesses anticancer, anti-inflammatory, antiviral, antioxidative, and antithrombotic properties. It was found that baicalein treatment attenuated the damage of the mammary gland induced by LPS, suppressed the activity of myeloperoxidase, TNFα, and IL-1β in mice with mastitis. The aim of the study was a pilot analysis of baicalin tolerability after intramammary (IMM) administration and its impact on somatic cell count (SCC) after multiple IMM treatment on dairy cows with clinical mastitis. Moreover, the determination of baicalin in milk was performed by the sensitive ultra-high performance liquid chromatography with tandem mass spectrometry. The pharmacokinetic analyses were performed using Phoenix® WinNonlin® 6.4 and ThothPro v 4.1 software. Twelve dairy cows with clinical mastitis were selected for this study. The pharmacodynamic endpoint was SCC level and the clinical investigation was also carried out. Baseline SCC analysis was performed every 24 h among all cows three days before the first dose (B1–B3). After the baseline monitoring, 8 days of treatment (T1–T8) was performed and 8 days within recovery period SCC level was observed (R1–R8). Starting from T1 to T8, a decrease of SCC in relation to baseline was characterized by a declining trend. The presented results confirm the effect of baicalin on the reduction of SCC in mastitis in dairy cows after this therapy. The current study has shown that baicalin accumulation was not confirmed.

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Comparison of Ketosis, Clinical Mastitis, Somatic Cell Count, and Reproductive Performance between Free Stall and Tie Stall Barns in Norwegian Dairy Herds with Automatic Feeding

Acta Veterinaria Scandinavica ◽

10.1186/bf03548498 ◽

1997 ◽

Vol 38 (2) ◽

pp. 181-192

Author(s):

J. P. Valde ◽

D. W. Hird ◽

M. C. Thurmond ◽

O. Østerås

Keyword(s):

Somatic Cell ◽

Cell Count ◽

Reproductive Performance ◽

Somatic Cell Count ◽

Clinical Mastitis ◽

Dairy Herds ◽

Norwegian Dairy

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Evaluation of the udder health status in subclinical mastitis affected dairy cows through bacteriological culture, somatic cell count and thermographic imaging

Polish Journal of Veterinary Sciences ◽

10.1515/pjvs-2015-0104 ◽

2015 ◽

Vol 18 (4) ◽

pp. 799-805 ◽

Cited By ~ 5

Author(s):

A. Bortolami ◽

E. Fiore ◽

M. Gianesella ◽

M. Corrò ◽

S. Catania ◽

...

Keyword(s):

Health Status ◽

Dairy Cows ◽

Somatic Cell ◽

Cell Count ◽

Somatic Cell Count ◽

Subclinical Mastitis ◽

Bacteriological Culture ◽

Udder Health ◽

Streptococcus Uberis ◽

Thermographic Imaging

Abstract Subclinical mastitis in dairy cows is a big economic loss for farmers. The monitoring of subclinical mastitis is usually performed through Somatic Cell Count (SCC) in farm but there is the need of new diagnostic systems able to quickly identify cows affected by subclinical infections of the udder. The aim of this study was to evaluate the potential application of thermographic imaging compared to SCC and bacteriological culture for infection detection in cow affected by subclinical mastitis and possibly to discriminate between different pathogens. In this study we evaluated the udder health status of 98 Holstein Friesian dairy cows with high SCC in 4 farms. From each cow a sample of milk was collected from all the functional quarters and submitted to bacteriological culture, SCC and Mycoplasma spp. culture. A thermographic image was taken from each functional udder quarter and nipple. Pearson’s correlations and Analysis of Variance were performed in order to evaluate the different diagnostic techniques. The most frequent pathogen isolated was Staphylococcus aureus followed by Coagulase Negative Staphylococci (CNS), Streptococcus uberis, Streptococcus agalactiae and others. The Somatic Cell Score (SCS) was able to discriminate (p<0.05) cows positive for a pathogen from cows negative at the bacteriological culture except for cows with infection caused by CNS. Infrared thermography was correlated to SCS (p<0.05) but was not able to discriminate between positive and negative cows. Thermographic imaging seems to be promising in evaluating the inflammation status of cows affected by subclinical mastitis but seems to have a poor diagnostic value.

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Udder and teat conformational risk factors for elevated somatic cell count and clinical mastitis in New York Holsteins

Preventive Veterinary Medicine ◽

10.1016/j.prevetmed.2018.12.010 ◽

2019 ◽

Vol 163 ◽

pp. 7-13 ◽

Cited By ~ 1

Author(s):

Asha M. Miles ◽

Jessica A.A. McArt ◽

Francisco A. Leal Yepes ◽

Cassandra R. Stambuk ◽

Paul D. Virkler ◽

...

Keyword(s):

Risk Factors ◽

New York ◽

Somatic Cell ◽

Cell Count ◽

Somatic Cell Count ◽

Clinical Mastitis

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Changes in teat parameters caused by milking and their recovery to their initial size

Archives Animal Breeding ◽

10.5194/aab-53-650-2010 ◽

2010 ◽

Vol 53 (6) ◽

pp. 650-662

Author(s):

L. Stádník ◽

F. Louda ◽

J. Bezdíček ◽

A. Ježková ◽

M. Rákos

Keyword(s):

Dairy Cows ◽

Somatic Cell ◽

Cell Count ◽

Wall Thickness ◽

Somatic Cell Count ◽

Initial Size ◽

Linear Description ◽

Daily Milk Yield ◽

Teat Canal ◽

Daily Milk

Abstract. Dairy cows of 2 breeds, 74 Holstein (H) and 72 Czech Fleckvieh (C) cows in the 1st (H, n=38; C, n=38) and 2nd lactation (H, n=36; C, n=34) during the 1st period (n=74; H, n=40; C, n=34; to 150 days) and the 2nd period of lactation (n=72; H, n=34; C, n=38; above 150 days) were observed. Differences in external and internal proportions of teat closely before (the 1st measurement), immediately after (the 2nd measurement) and 3 h after milking (the 3rd measurement), udder conformation evaluated by linear description, somatic cell count, daily milk yield and the time of milking were evaluated in relation to the effect of breed and period of lactation. The length of the teat canal, area of the teat end, and wall thickness were measured from the axial picture recorded by ultrasound Aloka SSD500 (Aloka Co., Ltd., Tokyo, Japan). Significant interbreed differences were detected in external as well as internal teat proportions (P<0.05–0.001). Relative changes of teat diameter, comparing C and H cows, differed significantly between the 1st and the 3rd measurement (P<0.05). The length of teat increased during milking and didn´t achieve the beginning size during 3 h after milking. Significant diiference in the length of teat between the 2nd measurement and the 3rd measurement was determined in H cows only (P<0.001). The most significant changes of the length of the teat canal and the area of teat were found in both breeds between values measured closely before and immediately after milking (P<0.5–0.001). Wall thickness was strengthen in C cows (+15.6 %) during the 2nd measurement according to the 1st (P<0.05), while difference represented +18 % (P<0.001) in H cows. Non-significantly higher values of external proportions of teat were measured in the 2nd period of lactation except diameter of teat closely before milking. Internal proportions of teat were always significantly higher in the 2nd period of lactation in relation to the 1st period. Prolongation of teat canal by 0.15 cm (P<0.01) closely before, by 0.16 cm (P<0.001) immediately after, and by 0.13 cm (P<0.01) 3 h after milking was measured in the 2nd period of lactation. The area of teat end measured before milking was significantly larger in the 2nd period of lactation (P<0.01).

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