Partial penile amputation after traumatic injury in a Holstein friesian sire

Poster (2012, June 06)

Tail amputation in a Belgian blue bull

Poster (2011, September)

Arthrotomie chez le veau

in Point Vétérinaire (2010), 302

Effect of exogenous circulating anti-bPL antibodies on bovine placental lactogen measurements in foetal samples.

in Acta Veterinaria Scandinavica (2010), 52

BACKGROUND: The involvement of placental lactogen (PL) in the regulation of foetal growth has been investigated in different species by in vivo immunomodulation techniques. However, when circulating ... [more ▼]

BACKGROUND: The involvement of placental lactogen (PL) in the regulation of foetal growth has been investigated in different species by in vivo immunomodulation techniques. However, when circulating antibodies are present together with the hormone, the procedure for hormonal measurement becomes considerably complex. The aim of this study was the immunoneutralization of bovine placental lactogen (bPL) concentrations in bovine foetal circulation by direct infusion of rabbit anti-bPL purified immunoglobulins (IgG) via a foetal catheter (in vivo study). The ability of a RIA based on guinea pig anti-bPL antiserum, for the measurement of bPL concentrations in samples containing exogenous rabbit anti-bPL immunoglobulins, was also analyzed in in vitro and in vivo conditions. METHODS: Six bovine foetuses were chronic cannulated on the aorta via the medial tarsal artery. Infusion of rabbit anti-bPL IgG was performed during late gestation. Pooled rabbit anti-bPL antisera had a maximal neutralization capacity of 25 microg bPL/mL of immunoglobulin. Interference of rabbit anti-bPL immunoglobulin with radioimmunoassay measurement using guinea pig anti-bPL as primary antibody was first evaluated in vitro. Polyclonal anti-bPL antibodies raised in rabbit were added in foetal sera to produce 100 samples with known antibodies titers (dilutions ranging from 1:2,500 till 1:1,280,000). RESULT(S): Assessment of the interference of rabbit anti-bPL antibody showed that bPL concentrations were significantly lower (P < 0.05) in samples added with dilutions of rabbit antiserum lower than 1:80,000 (one foetus) or 1:10,000 (four foetuses). It was also shown that the recovery of added bPL (12 ng/mL) was markedly reduced in those samples in which exogenous rabbit anti-bPL were added at dilutions lower than 1:20,000. Concentrations of foetal bPL were determined in samples from cannulated foetuses. In foetuses 1 and 6, bPL concentrations remained almost unchanged (<5 ng/mL) during the whole experimental period. In Foetus 3, bPL concentrations decreased immediately after IgG infusion and thereafter, they increased until parturition. CONCLUSION(S): The use of a bPL RIA using a guinea pig anti-bPL as primary antiserum allowed for the measurement of bPL concentrations in foetal plasma in presence of rabbit anti-bPL IgG into the foetal circulation. Long-term foetal catheterization allowed for the study of the influence of direct infusion of anti-bPL IgG on peripheral bPL concentrations in bovine foetuses. [less ▲]

Artrotomia nel vitello

in Summa. Animali da Reddito (2010), 5(7), 64-66

This article discusses the pathological condition, surgical treatment, postoperative care and arthrotomy in managing polyarthritis in cattle.

Approccio all'intussuscepzione nella specie bovina

in Summa. Animali da Reddito (2010), 5(1), 19-24

Intussusception is the invagination of a bowel segment in another one. Some authors classify this pathology as sparadic, whilst others think is one of the main causes of bowel obstruction in bovines. The ... [more ▼]

Intussusception is the invagination of a bowel segment in another one. Some authors classify this pathology as sparadic, whilst others think is one of the main causes of bowel obstruction in bovines. The aim of this article is to help vets to make a diagnosis as accurate as possible, together with an appropriate prognosis and therapy. [less ▲]

Approche de l'intussusception dans l'espèce bovine

in Point Vétérinaire (2009), 296

Key indicators and decision-making trees to analyse reproduction problems linked to environmental factors : data from a commercial dairy unit.

in British Society of Animal Sciences (2009)

Intestinal intussusceptions in cattle: a retrospective study (22 cases)

Conference (2008, July 10)

Evaluation of the treatment of septic arthritis by arthrotomy in calves

Conference (2008, July 10)