J.A. Toca Ramirez  , E. Salazar Sosa  , R.T. Zuniga  , J.S.C. Serrato  , M.E. Pereda Solis  , J. Toca Ramirez  , F.O. Carrete Carreon  , H. Herrera Casio  , R. Ramirez-Necoechea  , 
    Phosphorus Derived From Animal Production: A Review,
    Journal of Animal and Veterinary Advances,
    Volume 8,Issue 7,
    2009,
    Pages 1419-1428,
    ISSN 1680-5593,
    javaa.2009.1419.1428,
    (https://makhillpublications.co/view-article.php?doi=javaa.2009.1419.1428)
    Abstract: We make a review of the importance of Phosphorus manure (P) as an environment contaminant and its relationship with organic and sustainable agriculture. The P elimination pathway related with intensive livestock production in described as well as the soil harmful effect. The natural resistance against high levels of soil P shown by some plants is pointed out. Also, procedure to reduce manure P excretion. The poor handling of livestock manure coming out from intensive farming has a very high P contents with represent a dangerous challenge to the environment. Two main tools are available to reduce for P harmful effect one are the phytase inclusion in feed stuffs and two the growing of P resistant plants.
    Keywords: Organic agricultural production;manure handling;dairy cow;ewes;phosphorus