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Phosphorus (P) in ruminant nutrition is under ongoing scrutiny because of concerns with P in animal waste polluting the environment. Laws aiming at containing the amount of P of animal origin leaching into surface waters are implemented in many parts of the world. Concerns with restricting the...

The article presents the results of studies on the effect of different levels of feeding of dairy cows on productivity, fatness and metabolism. The scientific and economic experiment was carried out in the conditions of PP "Naro-Osanovsky" LLC, Moscow region, on black-and-white Holstein cows with a ...

The research was carried out at the Sarafanovo farm, in Chebarkul district, Chelyabinsk region. We established that postpartum endometritis in first-calf heifers is widespread in biogeochemical provinces that contain an excess of nickel and iron. This pathology demonstrates distinct violations of...

The biochemical profile of dairy cows is described depending on the features of their feeding. The dynamics of indicators of protein, carbohydrate, lipid and mineral metabolism was studied. The determination of the values of the biochemical indicators was performed on a semi-automatic biochemical...

The leading pathway for the supply of mineral elements to animals is the trophic chain "soil-plant-animal". The review article reveals the significance of the levels of macro and trace elements in soils of agricultural territories for the health and productivity of cattle, as well as some measures...

The apparent total tract digestibility and retention of calcium (Ca) and phosphorus (P) and concentrations of digestible energy and metabolizable energy in diets fed to late-gestating sows were not affected by Ca and P levels, but they were increased by dietary supplementation with...

The objectives of the present study were to evaluate the effects of changes in body condition score (BCS) during the dry period, genetic groups and milk production groups on the metabolic profile (energy, protein and mineral) of high-producing Holstein x Gir cows in Brazil. The average daily milk...

Parathyroid hormone-related protein (PTHrP) plays essential roles in placental calcium (Ca) transport, and it has been speculated that PTHrP in the placenta is regulated by calcium-sensing receptors (CaSR). This study clarified the relationship between PTHrP in the placenta of dairy cows and...