Vol. 8, Issue 4, Part E (2023)

After the consumption of feedstuff by ruminants, only 0.73 of dietary phosphorus is absorbed. The remaining variability is probably due to feedstuffs or diets, differences in phosphorus digestive availability, and also differences among species and physiological states. Phosphorus absorbed from cereal, cereal by-products, silage, and hay differs greatly. The chelation of phosphorus with amino acid increases its absorption as well as providing organic phosphorus through animal-based phosphorus sources such as meat meal & bone meal and inorganic phosphorus through dicalcium phosphate, monocalcium phosphate & some fluorinated phosphate also enhances absorption of phosphorus via the gut of ruminants. Due to faster absorption and availability of phosphorus from the gut of ruminants, they are super benefited with respect to productivity and reproductivity. The physiological significance of the same is discussed.