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The use of acute phase proteins as markers of diseases in dairy herds

100%

Tothova C., Nagy O., Seidel H., Kovac G.

Prace i Materiały Zootechniczne

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2009

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tom 67

Acute phase proteins became an interesting point of investigations also in veterinary medicine. In the last several years, there has been considerable progress in studies on the understanding of their functions, and influences on the organism. The benefit to laboratory and clinical diagnosis of diseases has been established also. In general, the acute phase response is a result of proinflammatory cytokines being secreted into the circulation from sites of infection or inflammatory lesions. Among the many pathophysiological responses of an animal to stimulation, there is an increased production and secretion of some plasma proteins from the liver, which are known in generally as acute phase proteins. Despite the uniform nature of the acute phase response, there are numerous differences in the production of acute phase proteins between various animal species. In bovine medicine, the principle acute phase protein to be used is haptoglobin in conjunction with serum amyloid A, which are elevated in some important bovine inflammatory diseases such as laminitis, metritis, or mastitis, as well as in some physiological conditions. Investigations over the last decade have shown that the quantification of their concentrations in plasma or serum can provide valuable diagnostic information in the detection, prognosis and monitoring of disease. Moreover, monitoring the blood concentrations of acute phase proteins can provide additional information on the progression of the inflammatory reaction. The circulating concentration of these proteins is related to the severity of the underlying condition and thus quantification of their concentrations provides a ready means of evaluating the presence and extent of the disease processes causing the response.

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Influence of cow herd structure onto milk yield factors at the milking parlour

100%

Gaworski M., Brzezinski D.

Annals of Warsaw University of Life Sciences - SGGW. Agriculture

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2016

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nr 67

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Prevalence of selected metabolic diseases in dairy herds in Eastern Poland

84%

Gulinski P.

Acta Scientiarum Polonorum. Zootechnica

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2019

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tom 18

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nr 2

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Effectiveness of using activity tags in management of high-producing dairy herd

84%

Wojcik P., Rudzinski J.

Folia Pomeranae Universitatis Technologiae Stetinensis. Agricultura, Alimentaria, Piscaria et Zootechnica

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2014

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tom 32

W badaniach wykorzystano dwie grupy krów (jałówki oraz krowy) rasy HF, którym zamocowano pedometry typu AfiAct oraz Gyuho na 65 dni. Analizowano aktywność dobową i miesięczną krów, uwzględniając wiek, laktację, wielkość produkcji mleka, fazę laktacji oraz termin wystąpienia rui. Określono efektywność wykorzystania obu modeli pedometrów w wykrywaniu rui u krów i jałówek. Stwierdzono duże zróżnicowanie w dobowej aktywności, w zależności od badanych czynników oraz wysoką skuteczność urządzeń w wykrywaniu rui u krów (93–95%) i jałówek (89%). Stwierdzono, że najczęściej odpoczywają krowy w II laktacji; najdłuższy czas odpoczynku charakteryzuje krowy do 100 dni laktacji, natomiast najwięcej czasu na odpoczynek w ciągu doby potrzebują krowy o wydajności dziennej powyżej 40 kg.

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Effect of selection methods on genetic and economic gain in dairy herds

84%

Safus P., Pribyl J.

Animal Science Papers and Reports. Supplement

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2004

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tom 22

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nr 2

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Plasma progesterone levels and clinical findings in dairy cows with post-partum anoestrus

67%

Zdunczyk S., Mwaanga E. S., Malecki-Tepicht J., Baranski W., Janowski T.

Bulletin of the Veterinary Institute in Puławy

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2002

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tom 46

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nr 1

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PCR in the diagnosis of bovine leukaemia virus infection

67%

Kubis P., Rulka J., Kur J., Dabrowski S.

Bulletin of the Veterinary Institute in Puławy

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1996

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tom 40

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nr 2

Whole blood samples from 73 animals from a dairy herd infected with BLV were used for detection of proviral DNA by means of PCR technique. At the beginning 24 cows were examined with primer set ZM1/ZM2. Seven out of 13 ELISA-positive animals –were PCR-positive too and 3 were PCR-positive among 11 serologically negative. Due to unsatisfactory results the rest of the samples were tested with a second primer set ZM2/ZM3. In this study 20 cows out of 25 ELISA-positive were PCR-positive and 8 out of 24 seronegative cows were PCR-positive. The findings of seronegative PCR-positive and seropositive PCR-negative cattle indicate that further work is needed. We plan to use the nested PCR because this technique seems to be more specific and sensitive.

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Analysis of correlation between the occurrence of anti-MAP antibodies in blood serum and the presence of DNA-MAP in milk

59%

Wiszniewska-Laszczych A., Szteyn J., Smolinska A.

Polish Journal of Veterinary Sciences

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2009

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tom 12

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nr 3

Paratuberculosis (Johne’s disease) is a chronic, infectious enteritis of both domestic and wild ruminants. Unfortunately, the problem of MAP infections is not linked only with the health status of animals and potential direct and indirect economic losses in bovine herds (of dairy cattle in particular). MAP bacilli present in food of animal origin (milk in particular) are likely to lead to the development od the disease in humans. Fast and effective diagnosis of the disease in animals, especially of its subclinical form, may prevent the transmission of the germ to humans. The study was aimed at analyzing the correlations between the occurance of seropositive and serodoubtful reaction in the ELISA test and the presence of DNA-MAP in udder milk. The results suggest that half of the population of animals with positive and doubtful serological responces against John’s disease are likely to be a potential source of germ transmission into humans. The fact of detecting DNA-MAP in 1/3 of all milk samples points to the likelihood of occurrence ofMAP bacilli in milk of animals not displaying seropositive or serodoubtful responses.

Ograniczanie wyników

The use of acute phase proteins as markers of diseases in dairy herds

Influence of cow herd structure onto milk yield factors at the milking parlour

Prevalence of selected metabolic diseases in dairy herds in Eastern Poland

Effectiveness of using activity tags in management of high-producing dairy herd

Effect of selection methods on genetic and economic gain in dairy herds

Plasma progesterone levels and clinical findings in dairy cows with post-partum anoestrus

PCR in the diagnosis of bovine leukaemia virus infection

Analysis of correlation between the occurrence of anti-MAP antibodies in blood serum and the presence of DNA-MAP in milk