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Special Issue "The Latest Advances of Bovine Mastitis and Udder Health"

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A special issue of Veterinary Sciences (ISSN 2306-7381). This special issue belongs to the section "Anatomy, Histology and Pathology".

Deadline for manuscript submissions: 29 February 2024 | Viewed by 3322

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Special Issue Editors

Prof. Dr. Chang-min Hu

E-Mail Website
Guest Editor

College of Animal Science and Technology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
Interests: cattle; mastitis

Prof. Dr. Heng Wang
E-Mail Website
Guest Editor

College of Veterinary Medicine, Yangzhou University, Yangzhou 225000, China
Interests: dairy cow; ruminant disease

Dr. Jie Chen
E-Mail Website
Guest Editor

Wuhan Academy of Agricultural Sciences, Wuhan, China
Interests: livestock; poultry; veterinary

Special Issue Information

Dear Colleagues,

Mastitis is a frequently occurring disease in dairy cows, accompanied by inflammatory manifestations such as redness, swelling, heat, and pain in the udder. In severe cases, lactation may be reduced or stopped. It has caused huge economic losses to the dairy farming and dairy industry. The use of antibiotics can also bring risks such as antibiotic resistance and antibiotic residues, posing a threat to public health. Cow mastitis is mainly an inflammation caused by bacteria invading the udder tissue through the opening of the teat. Pathogenic bacteria can be divided into two categories: infectious bacteria such as Staphylococcus aureus and Streptococcus agalactiae, and environmental bacteria such as Escherichia coli, Streptococcus isogalactiae, Streptococcus uberis, etc. In addition to the pathogenesis of bacterial infection, various incentives or genetic factors are involved in mastitis, mainly due to poor feeding and management. Therefore, the key to preventing mastitis in dairy cows is eliminating the abovementioned bad incentives. This Special Issue invites original articles or reviews covering any aspect of clinical mastitis and intramammary infection. Recent advances and new knowledge in mastitis research on, but not limited to, the following topics are invited:

diagnosis of the pathogen causing mastitis;
pathogenicity and immune mechanism of dairy cow mastitis;
impact on the economy, human health, animal welfare;
prevention of clinical mastitis and intramammary infection;
risk factors, treatment strategies, and non-antibiotic treatments for bovine mastitis;
farm environment and management;
milk quality.

Prof. Dr. Chang-min Hu
Prof. Dr. Heng Wang
Dr. Jie Chen
Guest Editors

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Keywords

mastitis
dairy cows
udder health
microorganism
intramammary infection
bacterial pathogens
virus pathogens
fungal pathogens
management
dairy

Published Papers (3 papers)

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Research

Open AccessArticle

A Study on the Stability and Antimicrobial Efficacy of a Newly Modeled Teat Dip Solution Containing Chlorhexidine

Žaneta Štreimikytė-Mockeliūnė

and

Raimundas Mockeliūnas

Vet. Sci. 2023, 10(8), 510; https://doi.org/10.3390/vetsci10080510 - 08 Aug 2023

Viewed by 620

Abstract

Despite much focus on mastitis as an endemic disease, clinical and subclinical mastitis remains an important problem for many herds. Reducing the usage of antibiotics for mastitis treatment allows the risks to be minimized related to the development of antimicrobial resistance and the excretion of antibiotics into the environment. The aim of the study was to determine the physico-chemical properties, stability and antimicrobial effect of a newly formulated biocide for post-milking udder hygiene containing a thickener made from hydroxypropyl guar gum, an antiseptic chlorhexidine digluconate and teat skin-friendly components including glycerol, Mentha Arvensis herbal oil and Aesculus hippocastanum extract. Hydroxypropyl guar gum was used as a thickener to provide the physical parameters and to retain the viscosity at 1438 mPa.s. The physical and chemical properties of the product, including the 12-month stability, were tested in long-term and accelerated stability studies. The product was effective against the primary mastitis pathogens, including Staphylococcus aureus, Streptococcus uberis, Escherichia coli, Candida albicans and Aspergillus niger. Full article

(This article belongs to the Special Issue The Latest Advances of Bovine Mastitis and Udder Health)

Open AccessArticle

Effects of Anemoside B4 on Plasma Metabolites in Cows with Clinical Mastitis

and

Vet. Sci. 2023, 10(7), 437; https://doi.org/10.3390/vetsci10070437 - 05 Jul 2023

Viewed by 860

Abstract

Anemoside B4 has a good curative effect on cows with CM; however, its impact on their metabolic profiles is unclear. Based on similar somatic cell counts and clinical symptoms, nine healthy dairy cows and nine cows with CM were selected, respectively. Blood samples were collected from cows with mastitis on the day of diagnosis. Cows with mastitis were injected with anemoside B4 (0.05 mL/kg, once daily) for three consecutive days, and healthy cows were injected with the same volume of normal saline. Subsequently, blood samples were collected. The plasma metabolic profiles were analyzed using untargeted mass spectrometry, and the concentrations of interleukin (IL)-1β, IL-6, and tumor necrosis factor-α (TNF-α) in serum were evaluated via ELISA. The cows with CM showed increased concentrations of IL-1β, IL-6, and TNF-α (p < 0.05). After treatment with anemoside B4, the concentrations of IL-1β, IL-6, and TNF-α were significantly decreased (p < 0.01). Untargeted metabolomics analysis showed that choline, glycocholic acid, PC (18:0/18:1), 20-HETE, PGF3α, and oleic acid were upregulated in cows with CM. After treatment with anemoside B4, the concentrations of PC (16:0/16:0), PC (18:0/18:1), linoleic acid, eicosapentaenoic acid, phosphorylcholine, and glycerophosphocholine were downregulated, while the LysoPC (14:0), LysoPC (18:0), LysoPC (18:1), and cis-9-palmitoleic acid were upregulated. This study indicated that anemoside B4 alleviated the inflammatory response in cows with CM mainly by regulating lipid metabolism. Full article

(This article belongs to the Special Issue The Latest Advances of Bovine Mastitis and Udder Health)

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Open AccessArticle

Biofilm-Producing Ability of Staphylococcus aureus Obtained from Surfaces and Milk of Mastitic Cows

and

Vet. Sci. 2023, 10(6), 386; https://doi.org/10.3390/vetsci10060386 - 02 Jun 2023

Cited by 1 | Viewed by 946

Abstract

This study was conducted to evaluate the incidence of mastitis in 153 dairy cows and to evaluate the kinetics of adhesion of isolates obtained from surfaces and milk in comparison with the reference strain (RS), CCM 4223. The surfaces of the floor, teat cup, and cow restraints were aseptically swabbed in three replicates (n = 27). Of the total number of infected cows (n = 43), 11 samples were found to be positive for Staphylococcus aureus, 12 samples tested positive for non-aureus staphylococci, 6 samples tested positive for Streptococcus spp., and 11 samples tested positive for other bacteria (Escherichia coli, Pseudomonas spp.) or a mixed infection. The most represented pathogen in milk (11/43) and on surfaces (14/27) was S. aureus. The kinetics of adhesion of the reference strain and isolates of S. aureus on stainless steel surfaces were determined after 3, 6, 9, 12, 24, and 48 h, and 3, 6, 9, 12, and 15 days of incubation. All strains reached counts higher than 5 Log₁₀ CFU/cm² needed for biofilm formation, except RS (4.40 Log₁₀ CFU/cm²). The isolates of S. aureus revealed a higher capability to form biofilm in comparison with RS during the first 3 h (p < 0.001). Thus, there is a significant difference between the occurrence of S. aureus on monitored surfaces—floor, teat cup, and cow restraints—and the frequency with which mastitis is caused by S. aureus (p < 0.05). This finding raises the possibility that if various surfaces are contaminated by S. aureus, it can result in the formation of biofilm, which is a significant virulence factor. Full article

(This article belongs to the Special Issue The Latest Advances of Bovine Mastitis and Udder Health)

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Special Issue "The Latest Advances of Bovine Mastitis and Udder Health"

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