Non-conventional P sources for zebu cows in Brazil
DOI:
https://doi.org/10.1590/S0103-90161995000100014Keywords:
phosphorus, cattle, rock phosphate, fluorineAbstract
To evaluate non-conventional phosphorus sources, a group of 400 Nellore cows mantained under pasture received a mineral mixture with different P sources (group I: superphosphate - 500 ppm P; group II: superphosphate - 340 ppm P plus rock phosphate Patos 160 ppm P; group III: superphosphate 340 ppm P plus dicalcium phosphate 160 ppm P; group IV - dicalcium phosphate 500 ppm P). There were no differences in pregnancy rate, calving rate and calving interval. A fluorine deposition in bone was observed for the treatments with superphosphate and rock phosphate (66.92 ± 15.53; 69.97 ± 6.5 and 64.05 ± 3.35% respectively for group I, II and III). Superphosphate was almost as good dicalcium phosphate to provide phosphorus for grazing cows and there was a potentially significant economic advantage over dicalcium phosphate.Downloads
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Published
1995-04-01
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All content of the journal, except where identified, is licensed under a Creative Common attribution-type BY-NC.How to Cite
Non-conventional P sources for zebu cows in Brazil . (1995). Scientia Agricola, 52(1), 78-81. https://doi.org/10.1590/S0103-90161995000100014