scholarly journals Microbiota of Cow’s Milk with Udder Pathologies

2021 ◽  
Vol 9 (9) ◽  
pp. 1974
Author(s):  
Mariya V. Gryaznova ◽  
Mikhail Y. Syromyatnikov ◽  
Yulia D. Dvoretskaya ◽  
Sergey A. Solodskikh ◽  
Nikolay T. Klimov ◽  
...  
Keyword(s):  
Bovine Mastitis ◽  
Subclinical Mastitis ◽  
Sensu Stricto ◽  
Relative Increase ◽  
Cow’S Milk ◽  
Economic Losses ◽  
Common Disease ◽  
Rrna Gene ◽  
Cow's Milk

Mastitis is the most common disease for cattle, causing great economic losses for the global dairy industry. Recent studies indicate the multi-agent and microbiome diversity of this disease. To understand the nature of mastitis and investigate the role of the microbiome in the development of pathologies in the udder of bovines, we performed NGS sequencing of the 16S rRNA gene of cow’s milk with pathologies of the udder. The obtained data show a significant increase in the Cutibacterium, Blautia, Clostridium sensu stricto 2, Staphylococcus, Streptococcus and Microbacterium genera for groups of cows with udder pathologies. Increasing relative abundance of the Staphylococcus and Streptococcus genera was associated with subclinical mastitis. Our data show that a relative increase in abundance of the Staphylococcus and Microbacterium genera may be an early sign of infection. We have shown, for the first time, an increase in the Colidextribacter, Paeniclostridium and Turicibacter genera in groups of cows with mastitis. These results expand our understanding of the role of the microbiome in the development of bovine mastitis.

scholarly journals Non-aureus Staphylococci and Bovine Udder Health: Current Understanding and Knowledge Gaps

2021 ◽  
Vol 8 ◽  
Author(s):  
Jeroen De Buck ◽  
Vivian Ha ◽  
Sohail Naushad ◽  
Diego B. Nobrega ◽  
Christopher Luby ◽  
...  
Keyword(s):  
Bovine Mastitis ◽  
Subclinical Mastitis ◽  
Individual Species ◽  
Common Disease ◽  
Protective Effects ◽  
Phenotypic Differences ◽  
Microbiome Composition ◽  
Udder Health ◽  
Gram Positive Bacteria

Despite considerable efforts to control bovine mastitis and explain its causes, it remains the most costly and common disease of dairy cattle worldwide. The role and impact of non-aureus staphylococci (NAS) in udder health are not entirely understood. These Gram-positive bacteria have become the most frequently isolated group of bacteria in milk samples of dairy cows and are associated with (mild) clinical and subclinical mastitis. Different species and strains of NAS differ in their epidemiology, pathogenicity, virulence, ecology and host adaptation, and antimicrobial resistance profiles. They have distinct relationships with the microbiome composition of the udder and may also have protective effects against other mastitis pathogens. Some appear to persist on the skin and in the teat canal and udder, while others seem to be transient residents of the udder from the environment. Analyzing genotypic and phenotypic differences in individual species may also hold clues to why some appear more successful than others in colonizing the udder. Understanding species-level interactions within the microbiome and its interactions with host genetics will clarify the role of NAS in bovine mastitis and udder health.

scholarly journals Epigenetic states of genes controlling immune responsiveness in bovine chronic mastitis

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ewelina Semik-Gurgul ◽  
Tomasz Ząbek ◽  
Ewelina Kawecka-Grochocka ◽  
Magdalena Zalewska ◽  
Ewa Kościuczuk ◽  
...  
Keyword(s):  
Dna Methylation ◽  
Methylation Level ◽  
Methylation Status ◽  
Bovine Mastitis ◽  
Subclinical Mastitis ◽  
Economic Losses ◽  
Common Disease ◽  
Coagulase Negative Staphylococci ◽  
Secretory Tissue ◽  
And Control

Abstract Mastitis is a common disease in dairy cows, causing substantial economic losses. The leading cause of elevated milk somatic cell count (SCC), which is the best indicator for detecting mastitis, is the invasion of pathogens. A major pathogen responsible for bovine mastitis is Staphylococcus aureus, a member of the coagulase-positive staphylococci. Some strains of coagulase-negative staphylococci can also be a cause of clinical or subclinical mastitis. Our study used bisulfite sequencing PCR (BSP) to detect the methylation status of nine candidate genes (CCL2, HCK, F11R, CD8A, PDIA3, LGMN, HSPA1A, IL18 and NFKBIA). We investigated the mechanisms associated with overexpression of these genes, in the mammary gland secretory tissue of cows diagnosed with mastitis and infected with coagulase-positive or coagulase-negative staphylococci. The results showed no changes at the DNA methylation level between the mastitis (CoPS and CoNS) and control groups (H), except for in the HCK region, where the observed differences between the CoPS and H groups were statistically significant. The low methylation level of the CpG sequence seems not to correspond to the previously observed increased activity of these genes, suggesting that mechanisms other than DNA methylation may control mRNA expression at the analyzed loci.

Cow's Milk Formula as a Cause of Infantile Colic: A Double-Blind Study

PEDIATRICS ◽  
1982 ◽  
Vol 70 (1) ◽  
pp. 7-10 ◽  
Author(s):  
Lasse Lothe ◽  
Tor Lindberg ◽  
Irene Jakobsson
Keyword(s):  
Gastrointestinal Symptoms ◽  
Dietary Treatment ◽  
Blind Study ◽  
Cow’S Milk ◽  
Milk Formula ◽  
Double Blind Study ◽  
Infantile Colic ◽  
Double Blind ◽  
Cow's Milk

The role of cow's milk in infantile colic in formula-fed infants was estimated in a double-blind study. Sixty colicky infants were given a cow's milk-containing formula (Enfamil) and a cow's milk-free formula based on soy (ProSobee). Eleven infants (18%) were free of symptoms while receiving soy formula. Symptoms of 32 infants (53%) were unchanged or worse when they were fed cow's milk formula and soy formula, but symptoms disappeared when they were fed a formula containing hydrolyzed casein (Nutramigen). Symptoms of 17 infants (29%) could not be related to the diet; these infants were permitted to continue on a cow's milk-based formula. A challenge with cow's milk-based formula after one month (at approximately age 3 months) produced symptoms of infantile colic in 22 infants (36%). At age 6 months, a challenge with cow's milk was positive in 11 infants (18%) with epidermal and gastrointestinal symptoms. Eight infants (13%) at 12 months of age and five infants (8%) at 16 months of age were still intolerant to cow's milk. Cow's milk seems to be a major cause of infantile colic in formula-fed infants. A dietary treatment is suggested for moderate or severe forms of the colic. Cow's milk protein intolerance is common later in infancy in these infants.

scholarly journals Role of basophil activation test for monitoring the immunological changes during desnsitization to cow’s milk: a case report

2011 ◽  
Vol 1 (S1) ◽  
Author(s):  
Valentina Pecora ◽  
Eleonora Nucera ◽  
Amira Colagiovanni ◽  
Alessandro Buonomo ◽  
Tiziana De Pasquale ◽  
...  
Keyword(s):  
Case Report ◽  
Basophil Activation Test ◽  
Basophil Activation ◽  
Cow’S Milk ◽  
Activation Test ◽  
Cow's Milk ◽  
Immunological Changes

scholarly journals Prevalence, Etiology, and Risk Factors of Mastitis in Dairy Cattle in Embu and Kajiado Counties, Kenya

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Christine M. Mbindyo ◽  
George C. Gitao ◽  
Charles M. Mulei
Keyword(s):  
Management Practices ◽  
Health Hazard ◽  
Previous History ◽  
Bovine Mastitis ◽  
Subclinical Mastitis ◽  
Control Measures ◽  
Economic Losses ◽  
Isolation And Identification ◽  
Cross Sectional ◽  
Milk Samples

Bovine mastitis continues to be a leading cause of heavy economic losses in the dairy industry and a public health hazard globally. This cross-sectional study investigated the prevalence, etiologies of clinical and subclinical mastitis, and associated predisposing factors in Embu and Kajiado counties in Kenya. A semistructured questionnaire was administered to 154 smallholder dairy farmers to collect data on management practices, animal factors, and disease history. A total of 395 dairy cows were initially screened for subclinical mastitis using the California mastitis test (CMT), and milk samples were aseptically collected. Both CMT positive and CMT negative samples were analyzed using conventional bacteriological isolation and identification procedures. In the present study, the overall prevalence of mastitis based on CMT and clinical examination was 80% (316/395), out of which 6.8% (27/395) was clinical mastitis, while 73.1% (289/395) was subclinical mastitis. Based on culture, the overall prevalence of clinical and subclinical mastitis was 51.6% (815/1580), 74.4% (294/395), and 76.6% (118/154) at the quarter, cow, and farm level, respectively. From the 1574 milk samples analyzed by cultured, 1016 bacteria were yielded. The predominant bacteria were coagulase-negative Staphylococcus (CNS), 42.8% (435/1016), and in decreasing order, Streptococcus species, 22.2% (226/1016), Staphylococcus aureus, 15.7% (160/1016), and Pseudomonas aeruginosa, 5.1% (52/1016), and the least was Enterobacter species, 0.7% (7/1016), while 23.7% of the sample yielded no bacterial growth. Risk factor analysis revealed that milking mastitic cows last (p=0.002), using a clean udder drying towel for each cow (p=0.033) and previous history of mastitis (p=0.046) were significantly associated with presence of mastitis. The current study has shown a relatively high prevalence of subclinical mastitis with CNS as predominant bacteria. Therefore, control measures are urgently warranted. Management factors such as milking mastitic cows last, using a clean towel for udder drying for each cow, and culling mastitic cows should be considered and included in the Kenyan mastitis control programs.

scholarly journals Biodiversity andγ-Aminobutyric Acid Production by Lactic Acid Bacteria Isolated from Traditional Alpine Raw Cow’s Milk Cheeses

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Elena Franciosi ◽  
Ilaria Carafa ◽  
Tiziana Nardin ◽  
Silvia Schiavon ◽  
Elisa Poznanski ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Random Amplified Polymorphic Dna ◽  
Streptococcus Thermophilus ◽  
Lactobacillus Paracasei ◽  
Aminobutyric Acid ◽  
Cow’S Milk ◽  
Rrna Gene ◽  
Cow's Milk ◽  
Raw Cow’S Milk

“Nostrano-cheeses” are traditional alpine cheeses made from raw cow’s milk in Trentino-Alto Adige, Italy. This study identified lactic acid bacteria (LAB) developing during maturation of “Nostrano-cheeses” and evaluated their potential to produceγ-aminobutyric acid (GABA), an immunologically active compound and neurotransmitter. Cheese samples were collected on six cheese-making days, in three dairy factories located in different areas of Trentino and at different stages of cheese ripening (24 h, 15 days, and 1, 2, 3, 6, and 8 months). A total of 1,059 LAB isolates were screened using Random Amplified Polymorphic DNA-PCR (RAPD-PCR) and differentiated into 583 clusters. LAB strains from dominant clusters (n=97) were genetically identified to species level by partial 16S rRNA gene sequencing. LAB species most frequently isolated wereLactobacillus paracasei,Streptococcus thermophilus, andLeuconostoc mesenteroides. The 97 dominant clusters were also characterized for their ability in producing GABA by high-performance liquid chromatography (HPLC). About 71% of the dominant bacteria clusters evolving during cheeses ripening were able to produce GABA. Most GABA producers wereLactobacillus paracaseibut other GABA producing species includedLactococcus lactis,Lactobacillus plantarum,Lactobacillus rhamnosus,Pediococcus pentosaceus, andStreptococcus thermophilus. NoEnterococcus faecalisorSc. macedonicusisolates produced GABA. The isolate producing the highest amount of GABA (80.0±2.7 mg/kg) was aSc. thermophilus.

scholarly journals Role of maternal elimination diets and human milk IgA in the development of cow's milk allergy in the infants

2013 ◽  
Vol 44 (1) ◽  
pp. 69-78 ◽  
Author(s):  
K. M. Järvinen ◽  
J. E. Westfall ◽  
M. S. Seppo ◽  
A. K. James ◽  
A. J. Tsuang ◽  
...  
Keyword(s):  
Human Milk ◽  
Cow’S Milk Allergy ◽  
Cow’S Milk ◽  
Milk Allergy ◽  
Cow's Milk ◽  
Cow's Milk Allergy

Role of conformational and linear epitopes in the achievement of tolerance in cow's milk allergy

2001 ◽  
Vol 31 (10) ◽  
pp. 1599-1606 ◽  
Author(s):  
L. Vila ◽  
K. Beyer ◽  
K.-M. Järvinen ◽  
P. Chatchatee ◽  
L. Bardina ◽  
...  
Keyword(s):  
Cow’S Milk Allergy ◽  
Cow’S Milk ◽  
Milk Allergy ◽  
Cow's Milk ◽  
Cow's Milk Allergy ◽  
Linear Epitopes

scholarly journals Got Mylk? The Emerging Role of Australian Plant-Based Milk Alternatives as A Cow’s Milk Substitute

Nutrients ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1254 ◽  
Author(s):  
Yianna Y. Zhang ◽  
Jaimee Hughes ◽  
Sara Grafenauer
Keyword(s):  
Compositional Data ◽  
Calcium Content ◽  
Food Composition ◽  
Cow’S Milk ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Cow's Milk ◽  
Food Retailers ◽  
Milk Substitute

Growing ethical, environmental and health concerns have encouraged demand for novel plant-based milk alternatives, yet it remains nebulous whether these products are nutritionally adequate as cow’s milk replacements. The aim of this study was to conduct a cross-sectional survey of plant-based milk alternatives available in major Australian supermarkets and selected niche food retailers from November 2019 to January 2020 and assess two dietary scenarios (adolescents and older women) where dairy serves were substituted for plant-based alternatives against Australian Estimated Average Requirements (EAR). We collected compositional data from nutrition panels in juxtaposition with derivatives from the Australian Food Composition database, with a total of 115 products, including tree nuts and seeds (n = 48), legumes (n = 27), coconut (n = 10), grains (n = 19) and mixed sources (n = 10). Just over 50% of products were fortified, but only 1/3 contained similar calcium content to cow’s milk. Indiscriminate substitutions might reduce intakes of protein and micronutrients, particularly vitamin A, B2, B12, iodine and zinc, and lead to reductions >50% of the EARs for protein, zinc and calcium in the chosen dietary scenarios. To avoid unintended dietary outcomes, it is vital that consumers make pragmatic decisions regarding dietary replacements for cow’s milk.

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