Net requirements of energy, protein and macrominerals for weight gain of grazing beef cattle castrated at different ages, with and without supplementation
نویسندگان
چکیده
منابع مشابه
Macrominerals and Trace Element Requirements for Beef Cattle.
Eighty-seven Nellore animals were utilized in this study to estimate net requirements for the maintenance and growth of beef cattle as well as the retention coefficients of 13 minerals: macrominerals (Ca, P, Mg, K, Na, and S) and trace elements (Cu, Fe, Mn, Se, Zn, Co, and Cr). The net requirements for maintenance and the true retention coefficient were estimated by using the regression between...
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ژورنال
عنوان ژورنال: Revista Brasileira de Zootecnia
سال: 2012
ISSN: 1516-3598
DOI: 10.1590/s1516-35982012000200025