A5006624344- Milk Quality and Mastitis in Dairy Cows
- Reproductive Physiology in Livestock
- Genetic and phenotypic traits in livestock
- Reproductive Biology and Fertility
- Effects of Environmental Stressors on Livestock
- Animal Behavior and Welfare Studies
- Probiotics and Fermented Foods
- Vector-Borne Animal Diseases
- Animal Disease Management and Epidemiology
- Microbial infections and disease research
- Ruminant Nutrition and Digestive Physiology
- Parasitic Infections and Diagnostics
- Infant Nutrition and Health
- Digestive system and related health
- Meat and Animal Product Quality
- Animal Genetics and Reproduction
- Animal Diversity and Health Studies
- Ovarian function and disorders
- Toxoplasma gondii Research Studies
- Microbial Inactivation Methods
- Advanced Algorithms and Applications
- Quality and Management Systems
- Food Industry and Aquatic Biology
- Business Strategies and Innovation
- Dietary Effects on Health
Israel Dairy Board (Israel)
2015-2025
Hebrew University of Jerusalem
2008-2019
Agricultural Research Organization
2016
Bovine ephemeral fever virus (BEFV) is an arthropod-borne (arbovirus) transmitted by blood-feeding insects (mosquitoes and Culicoides biting midges). While the dispersal of arboviral diseases such as bovine (BEF) into naive areas often result globalization animal movement, endemization local outbreaks these are mainly influenced environmental changes. Climate change affects activity, distribution, dynamics, life cycles vectors (arthropods), replication viruses within their vectors, weakens...
Background/Objectives:Neosporosis is a major cause of abortions in cattle worldwide. Primary results showed that the administration live attenuated vaccine during mid-pregnancy stage naturally infected cows may assist preventing abortions. In this study, effect vaccination was evaluated five dairy herds, with follow-up three consecutive pregnancies and re-vaccination subsequent some cows. Methods: A total 1059 heifers were serologically tested their first pregnancy, 260 21 them re-tested...
Mastitis (intramammary infection) causes the deterioration of ovarian follicular responses in cows, resulting low fertility. The short-term, acute clinical form mastitis has a time-dependent disruptive effect on conception rate. It effectively lowers rate if events occur mainly 10 days before to 30 after artificial insemination. Long-term sub-clinical is widely spread commercial herds. Although it less severe than mastitis, its long-term nature more pronounced decrease Even mild elevation...
We examined the effects of a supplement plant polyphenols extracts green tea, capsicum, and fenugreek, electrolytes ([Na+, K+]; AXT, Axion ThermoPlus, CCPA, France] during summer heat load on production, welfare, oxidative stress proteins in adipose tissue (AT) dairy cows. A total 42 multiparous mid-lactation cows were divided into 3 groups summer, fed for 2 wk either standard milking cow diet (CTL, n = 14) or diets supplemented with 100 g/d AXT (100AXT, 14), 150 (150AXT, while being cooled...
Abstract The mammary immune and physiological responses to distinct mammary-pathogenic E. coli (MPEC) strains were studied. One gland in each of ten cows challenged intra-mammary milk composition (lactose, fat, total protein, casein), biochemical (glucose, glucose-6-phosphate (Glu6P), oxalate, malate, lactate, pyruvate citrate, malate lactate dehydrogenases, dehydrogenase (LDH), nitrite, lactic peroxidase, catalase, albumin, lactoferrin, immunoglobulin) clotting parameters followed for 35...
Follicular development, follicular rupture, and corpus luteum (CL) formation are accompanied by extensive tissue remodeling. We examined whether heparanase (HPSE), which cleaves heparan sulfate glycosaminoglycans, is induced during these processes. Prostaglandin F2alpha injection, initiated luteolysis the development of a preovulatory follicle, moderately increased HPSE mRNA in bovine granulosa cells (GCs). GnRH, used to induce gonadotropin surge, markedly augmented levels 12 h after its...
Subclinical chronic mastitis was induced to examine the effects on oocyte developmental competence. Uninfected Holstein cows were intramammary administrated with serial (every 48 h for 20 days) low doses of toxin Staphylococcus aureus origin (Gram-positive; G+), endotoxin Escherichia coli (Gram-negative; G–) or sterile saline (control). Follicular fluid toxin- and saline-treated aspirated from preovulatory follicles used as maturation medium. Oocytes harvested ovaries collected at abattoir...
Culicoides biting midges (Diptera: Ceratopogonidae) are a successful group of small (1–3 mm) haematophagous flies, some species which biological vectors veterinary arboviruses, such as bluetongue virus, epizootic haemorrhagic disease African horse sickness virus and Simbu serogroup viruses. In this study, we examine seasonal spatial effects on the presence distribution communities associated with ruminant equine farms in Israel, their infection Our results demonstrate that both viruses...
Neosporosis is a major cause of abortions in cattle worldwide. Recently live attenuated vaccine showing promising results preventing abortions, when administered at mid-pregnancy to seropositive cows, was developed. In this study, vaccination with 2 × 108 frozen N. caninum tachyzoites (NcIs491) used immunize naturally infected pregnant dairy dams. The study performed under field conditions four herds, and follow-up three subsequent pregnancies analyzed. A total 1136 cows were serologically...
Recent findings have indicated that secreted phospholipases A2 (sPLA2s) anti-inflammatory functions, including relief of symptoms in a mouse model mastitis. This prompted us to investigate the therapeutic application sPLA2, PLA2G1B, for bovine Initial testing PLA2G1B's effect on mammary epithelial cell (bMEC) line PS revealed no changes viability or cytokine-secretion pattern. However, when cells were first treated with lipopolysaccharide endotoxin (LPS) live bacteria (Escherichia coli...
The current study measured the influence of milk subclinically infected glands by different bacteria species on cow’s milk. effects bacterial infection or inflammation gland yield were related to that caused infection. volume inflamed from was significantly lower (P<0.001) for previously Escherichia coli (PIEc) and those with Streptococcus dysgalactiae. Coagulation properties, rennet clotting time (RCT) curd firmness (CF) also depended causing RCT values all longer CF than healthy ones....