Histological examination of non-lactating bovine udders inoculated with Lactobacillus perolens CRL 1724

The effect of intramammary inoculation of Lactobacillus perolens CRL 1724 on bovine udders at drying off was evaluated through histological examination of the canal and cistern tissues. The persistence of the strain in the udder 7 d post inoculation was also determined. Lb. perolens CRL 1724 was rec...

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Bibliographic Details
Published in:Journal of dairy research 2013-02, Vol.80 (1), p.28-35
Main Authors: Frola, Ignacio D, Pellegrino, Matías S, Magnano, Gabriel, Giraudo, José A, Espeche, María C, Nader-Macias, María EF, Bogni, Cristina I
Format: Article
Language:English
Subjects:
Animal productions
Animals
Biological and medical sciences
blood vessels
bovine mastitis
Cattle
Dairy cattle
dairy cows
drying
epithelial cells
Epithelial Cells - microbiology
Epithelial Cells - ultrastructure
Female
Food industries
Fundamental and applied biological sciences. Psychology
Lactobacillus
Lactobacillus perolens
Mammary Glands, Animal - anatomy & histology
Mammary Glands, Animal - microbiology
Mastitis, Bovine - prevention & control
milk
Milk and cheese industries. Ice creams
neutrophils
Probiotics
Terrestrial animal productions
tissues
udders
Vertebrates
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Summary:The effect of intramammary inoculation of Lactobacillus perolens CRL 1724 on bovine udders at drying off was evaluated through histological examination of the canal and cistern tissues. The persistence of the strain in the udder 7 d post inoculation was also determined. Lb. perolens CRL 1724 was recovered from all mammary quarters and no clinical signs or teat damage were observed after inoculation of 106 cfu/ml. The udders showed a normal structural aspect and there were no modifications of the milk appearance. Lb. perolens CRL 1724 cells were evidenced on the surface of the epithelial cells of the cistern without causing any morphological modifications or cell alterations. Lb. perolens CRL 1724 produces a mild inflammatory reaction, characterized by recruitment of neutrophils to the epithelial zone and a slight hyperaemia into blood vessels. This preliminary study provides important information for further studies directed towards the inclusion of Lb. perolens CRL 1724 in the design of probiotic products for preventing bovine mastitis in non-lactating dairy cows.
ISSN:0022-0299
1469-7629
1469-7629
DOI:10.1017/S0022029912000581