A5063843181- Milk Quality and Mastitis in Dairy Cows
- Infant Nutrition and Health
- Probiotics and Fermented Foods
- Reproductive Physiology in Livestock
- Digestive system and related health
- Genetic and phenotypic traits in livestock
- Animal Genetics and Reproduction
- Epigenetics and DNA Methylation
- Meat and Animal Product Quality
- Identification and Quantification in Food
- Microbial infections and disease research
- Ruminant Nutrition and Digestive Physiology
- Listeria monocytogenes in Food Safety
- Animal Diversity and Health Studies
University of Padua
2022-2023
Milk proteins genetic variants have long attracted interest as they are associated with important issues relating to milk composition and technological properties. An debate has recently opened at an international level on the role of β-casein (β-CN) A1 A2 polymorphisms, toward human health. For this reason, a lot efforts been put into promotion by companies producing selling A1-free milk, leading farmers breeders switch production without paying attention potential effect processability...
In this study, we investigated associations among subclinical intra-mammary infection (IMI) and quarter-level milk composition, udder health indicators, cheesemaking traits. The dataset included records from 450 Holstein cows belonging to three dairy herds. After an initial screening (T0) identify animals infected by Streptococcus agalactiae, uberis, Staphylococcus aureus, Prototheca spp., 613 quarter samples for 2 different sampling times (T1 T2, 1 mo after T1) were used analysis. Milk...
The causes of variation in the milk mineral profile dairy cattle during first phase lactation were studied under hypothesis that partially reflects animals' metabolic status. Correlations between minerals and main constituents (i.e., protein, fat, lactose percentages), their associations with cows' status indicators explored. (MET) we used blood energy-protein metabolites [nonesterified fatty acids, β-hydroxybutyrate (BHB), glucose, cholesterol, creatinine, urea], liver ultrasound...
Udder health in dairy herds is a very important issue given its implications for animal welfare and the production of high-quality milk. Somatic cell count (SCC) most widely used means assessing udder status. However, differential somatic (DSCC) has recently been proposed as new more effective evaluating intramammary infection dynamics. Differential SCC represents combined percentage polymorphonuclear neutrophils lymphocytes (PMN-LYM) total SCC, with macrophages (MAC) accounting remaining...
In recent years, increasing attention has been focused on the genetic evaluation of protein fractions in cow milk with aim improving quality and technological characteristics. this context, advances high-throughput phenotyping by Fourier transform infrared (FTIR) spectroscopy offer opportunity for large-scale, efficient measurement novel traits that can be exploited breeding programs as indicator traits. We took samples from 2,558 Holstein cows belonging to 38 herds northern Italy, operating...
Abstract Background Subclinical intramammary infection (IMI) represents a significant problem in maintaining dairy cows’ health. Disease severity and extent depend on the interaction between causative agent, environment, host. To investigate molecular mechanisms behind host immune response, we used RNA-Seq for milk somatic cells (SC) transcriptome profiling healthy cows ( n = 9), naturally affected by subclinical IMI from Prototheca spp. 11) Streptococcus agalactiae S. ; 11). Data...
Udder health has a crucial role in sustainable milk production, and various reports have pointed out that changes udder condition seem to affect mineral content. The somatic cell count (SCC) is the most recognized indicator for determination of status. Recently, new parameter, differential (DSCC), been proposed more detailed evaluation intra-mammary infection patterns. Specifically, DSCC combined proportions polymorphonuclear neutrophils lymphocytes (PMN-LYM) on total SCC, with macrophages...
Better understanding of the molecular mechanisms behind bovine mastitis is fundamental for improving management this disease, which continues to be major concern dairy industry, especially in its subclinical form. Disease severity and progression depend on numerous aspects, such as livestock genetics, interaction between causative agent, host, environment. In context, epigenetic have proven a role controlling response animal inflammation. Therefore, study we aimed explore genome-wide DNA...
Cheese production is an applied biotechnology whose proper outcome relies strictly on the complex interactive dynamics which unfold within defined microbial groups. These may start being active from collection of milk and continue up to its final stages maturation. One critical parameters playing a major role refrigeration temperature before pasteurization as it can affect proportion psychrotrophic taxa abundance in total bacterial population. While standard 4 °C common choice, due general...
In this study we wanted to investigate the associations between naturally occurring subclinical intramammary infection (IMI) caused by different etiological agents (i.e., Staphylococcus aureus, Streptococcus agalactiae, uberis, and Prototheca spp.), in combination with somatic cell count (SCC), on detailed milk protein profile measured at individual mammary gland quarter. An initial bacteriological screening (time 0; T0) conducted composite from 450 Holstein cows reared 3 herds, was...
In this study, we investigated the association between natural subclinical intramammary infection (IMI) caused by Streptococcus agalactiae and Prototheca spp. milk differential cell counts assessed cytofluorimetric analysis in Holstein cows. After an initial bacteriological screening on 188 animals a second assessment carried out 2 wk later aimed at confirming status, collected samples from 47 performed (1) composition analyses; (2) somatic (DSCC); (3) analyses. Before statistical analyses,...
Early detection of bovine subclinical mastitis may improve treatment strategies and reduce the use antibiotics. Herein, individual milk samples from Holstein cows affected by induced S. agalactiae Prototheca spp. were analyzed untargeted targeted mass spectrometry approaches to assess changes in their peptidome profiles identify new potential biomarkers pathological condition. Results showed a higher amount peptides positive on bacteriological examination when compared with negative control....
Mastitis, especially the subclinical form, is most common economic and health problem in dairy cows. Little known about changes milk fatty acid (FA) composition according to infection/inflammation status of mammary gland. The aim this study was investigate associations between naturally occurring intramammary infection (IMI) from different pathogens, i.e. Streptococcus agalactiae, Staphylococcus aureus, uberis Prototheca spp., detailed FA profile assessed at quarter level Holstein After an...