Microelements (iron, copper, zinc) in poultry nutrition in north Vietnam
2001
Bui Cong Doan
In cereal grains, the content of Fe ranged from 169 - 575 ppm, Cu 31-68 ppm and Zn 59 - 93 ppm. In fish meal Fe ranged 1661-2678 ppm, Cu 41-72 ppm and Zn 83 - 162 ppm. In soybean the figure was 620 - 1029, 47-91 and 89 - 106 ppm, respectively. (2) Compared to NRC (1994), on the average, the deferent enterprises in the Nor fed their chicken on rations with a contents of Fe, Cu and Zn which were 6-9, 5-7 and 2 times higher, respectively.
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