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Topic:Biochemistry
The study of biochemistry in horses encompasses the chemical processes and substances that occur within equine organisms. This field investigates the molecular interactions and pathways that are fundamental to horse physiology, including metabolism, enzyme activity, and genetic expression. Key areas of interest include the examination of metabolic disorders, nutrient absorption, and the biochemical basis of muscle function and energy production. Researchers utilize biochemical analysis to understand health and disease mechanisms in horses, contributing to the development of diagnostic tools and therapeutic strategies. This page gathers peer-reviewed studies and scholarly articles that explore various biochemical processes and their implications for equine health and performance.
The total protein and immunoglobulin profile of equine colostrum and milk. Thirty-six samples of colostrum and milk were collected from ponies at various intervals after parturition. Levels of total protein and immunoglobulins IgG and IgG(T) were determined. In samples collected in the first 3 hours , the total protein concentration was approximately twice that of serum protein and the immunoglobulins IgG and IgG(T) accounted for 30 per cent and 10 per cent respectively of this protein. The ratio of IgG to IgG(T) was similar to that in serum. After suckling, a marked decline in both total protein and immunoglobulin concentration occurred. In addition, the relative co...
Structure of dermatan sulfate. VII. The copolymeric structure of dermatan sulfate from horse aorta. The structure of dermatan sulfate-chondroitin sulfate
copolymers, isolated from horse aorta, has been examined.
It was found that a large proportion of the galactosaminoglycans of this tissue was obtained as a discrete polysaccharide fraction with an L-iduronic acid to D-glucuronic
acid ratio of approximately 1: 2. This finding together with
infrared data indicated that the polymer contained approximately equimolar proportions of the three repeating disaccharide units glucuronosyl-N-acetylgalactosamine 4-sulfate
(A), iduronosyl-N-acetylgalactosamine 4-sulfate (B), and
glucuronosyl-N-acet...
Preparation and properties of smooth muscle myosin from horse esophagus. Myosin was prepared from smooth muscle of horse esophagus in good yield
(about 15 ° mg/Ioo g tissue) and was designated myosin S. Its properties were compared
with those of myosin A from skeletal muscle.
The ratio of the absorption of myosin S at 280 nm to that at 26o nm was about
1.8, and the amount of contaminating phosphorus was only o.91 g/io 5 g of myosin S,
indicating that the latter is free of nucleic acid. The purity of this protein was examined
by ultracentrifugation, gel filtration in the presence of 0.5 M KC1 and 6 M urea and
chromatography on DEAE-cellulose columns. These e...
Plasma concentrations of cortisol and corticosterone in the normal horse. The plasma concentration of cortisol and corticosterone in the normal horse was determined by competitive protein-binding analysis (radiostereoassay). The mean plasma concentration of the 2 steroids in resting horses was 5.12 μg./ml., with standard deviation of 1.67 μg. There were no significant differences in the mean values according to age, sex, and pregnancy. Seemingly, diurnal variations in concentrations of the steroids existed in horses; values were high in the morning and low in the evening. Plasma values were increased in horses given corticotropin (acth) and were decreased in those...
