Effects of intra-mammary bacterial infection with coagulase negative staphylococci and stage of lactation on shedding of epithelial cells and infiltration of leukocytes into milk: comparison among cows, goats and sheep

Veterinary Immunology and Immunopathology
G LeitnerNissim Silanikove

Abstract

The effects of mammary gland bacterial infection and stage of lactation on leukocyte infiltration into the mammary gland were compared among cows, goats and sheep. Animals were at two stages of lactation: mid or late. In mid-lactation animals, bacterial-free glands and coagulase negative Staphylococcus (CNS)-infected glands were compared. In late lactation only uninfected glands were studied. Of mid-lactation bacteria-free animals, goats had the highest number of leukocytes and % polymorphonuclears (PMNs), whereas sheep had the lowest and leukocytes number in cows were intermediate between sheep and goats. Based on %PMN, two cell clusters were found in sheep, which overlapped with the parallel cell clusters of cows and goats, but with a slightly higher number of leukocytes in each cell cluster. At late lactation, goats had higher values for %PMN and leukocyte numbers in comparison to cows, which had a similar cellular profile to sheep. The cellular immune response to CNS infection was similar for the three animal species, although the number of cells was different, while the basal cell level at mid-lactation and especially at the end of lactation was species specific.

References

Mar 27, 2001·The Journal of Cell Biology·C M AlexanderZ Werb
Feb 9, 2007·Journal of Mammary Gland Biology and Neoplasia·Kamran AtabaiZena Werb
Oct 12, 2007·New Zealand Veterinary Journal·K I ParkerS McDougal
May 2, 2009·Journal of Mammary Gland Biology and Neoplasia·Jenifer Monks, Peter M Henson

❮ Previous
Next ❯

Citations

Jun 8, 2014·The Veterinary Journal·Shlomo E BlumGabriel Leitner
Oct 27, 2015·Animal Science Journal = Nihon Chikusan Gakkaihō·Rita de Cássia Ramos do Egypto QueirogaEvandro Leite de Souza
Mar 8, 2016·Journal of Dairy Science·M AlbenzioA Sevi
Sep 29, 2019·Animals : an Open Access Journal From MDPI·Angeliki I KatsafadouIlektra A Fragkou
Nov 16, 2019·Preventive Veterinary Medicine·Véronique Bernier GosselinJohn R Middleton
May 4, 2021·Frontiers in Veterinary Science·Jeroen De BuckHerman W Barkema

❮ Previous
Next ❯

Related Concepts

Related Feeds

CRISPR & Staphylococcus

CRISPR-Cas system enables the editing of genes to create or correct mutations. Staphylococci are associated with life-threatening infections in hospitals, as well as the community. Here is the latest research on how CRISPR-Cas system can be used for treatment of Staphylococcal infections.