A low-dose treatment based on interleukin-2 (IL-2) was investigated for preventing mastitis in dairy cows. The treatment consisted of a single dose of IL-2 injected into the skin region drained by the supramammary lymph node 3-5 days after calving. The study included 45 cows (23 treated and 22 controls) from three commercial dairy herds. The results showed that the treatment had no side effects. The treatment with IL-2 induced the significant increase of several milk markers related to leukocyte and epithelial cell functions, i.e. SCC (somatic cell counts), serum amyloid A (SAA), lactoferrin and NAGase. The increased concentration of milk markers suggested also an activity of IL-2 on epithelial cells, resulting in a higher resistance to invading pathogens. Indeed, the increased efficiency of cells in the udder is supported by the higher frequency of healthy quarters observed in the treated group until day 17-19 after calving, in comparison with the control one.

Evaluation of interleukin-2 treatment for prevention of intramammary infections in cows after milking / A. Zecconi, R. Piccinini, S. Fiorina, L. Cabrini, V. Daprà, M. Amadori. - In: COMPARATIVE IMMUNOLOGY, MICROBIOLOGY AND INFECTIOUS DISEASES. - ISSN 0147-9571. - 32:5(2009 Sep), pp. 439-451.

Evaluation of interleukin-2 treatment for prevention of intramammary infections in cows after milking

A. Zecconi
Primo
;
R. Piccinini
Secondo
;
S. Fiorina;L. Cabrini;V. Daprà
Penultimo
;
2009

Abstract

A low-dose treatment based on interleukin-2 (IL-2) was investigated for preventing mastitis in dairy cows. The treatment consisted of a single dose of IL-2 injected into the skin region drained by the supramammary lymph node 3-5 days after calving. The study included 45 cows (23 treated and 22 controls) from three commercial dairy herds. The results showed that the treatment had no side effects. The treatment with IL-2 induced the significant increase of several milk markers related to leukocyte and epithelial cell functions, i.e. SCC (somatic cell counts), serum amyloid A (SAA), lactoferrin and NAGase. The increased concentration of milk markers suggested also an activity of IL-2 on epithelial cells, resulting in a higher resistance to invading pathogens. Indeed, the increased efficiency of cells in the udder is supported by the higher frequency of healthy quarters observed in the treated group until day 17-19 after calving, in comparison with the control one.
Bovine; IL-2; Mammary gland immunity; Mastitis; Prevention
Settore VET/05 - Malattie Infettive degli Animali Domestici
set-2009
Article (author)
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/54914
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