Phosphorus in dairy farm systems.

Authors

  • Jorge Alberto Elizondo-Salazar Universidad de Costa Rica, Estación Experimental Alfredo Volio Mata

DOI:

https://doi.org/10.15517/am.v16i2.11877

Keywords:

phosphorus, animal nutrition, dairy cattle, environment pollution, phosphorus excretion.

Abstract

Due to the intense

use of P fertilizers and livestock manure in modern day

agriculture, P has become an accelerator of fresh water

eutrophication, resulting in reduced oxygen availability

because of growth of algae and their decomposition. Recent

research indicates that dietary P management is a key strategy

to reduce P imports and accumulation on dairy farms. Thus,

a more precise formulation of dairy rations can lead to

substantial reduction in fecal P excretion without impairing

animal productivity. Some mathematical equations are

presented in order to estimate P excretion by dairy cows.

These equations would be very useful when developing

nutrient management programs. The objective of the study

was to make a brief commentary of the importance of P in the

body, understand that excess P can be an important threat to

surface waters, and to find the easiest and most economic

ways to reduce P excretion in dairy farm systems.

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How to Cite

Elizondo-Salazar, J. A. (2005). Phosphorus in dairy farm systems. Agronomía Mesoamericana, 16(2), 231–238. https://doi.org/10.15517/am.v16i2.11877

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