Laserfiche WebLink
Mass Balance of Nitrogen Loading <br /> Phase I <br /> Nitrate loading calculations for existing properties: <br /> Definitions: <br /> o Denitification is the transformation of nitrates or nitrites or nitrous oxide gas occurring <br /> under anaerobic conditions. <br /> o Aerobic is the growing or occurring only in the presence of molecular oxygen. Effluent <br /> contains enough dissolved oxygen to maintain aerobic bacteria. <br /> _- o Au is the abbreviation for animal unit. One animal unit represents 1000 lbs. of live body <br /> weight. <br /> Nitrogen content of manure from dairy cattle:s <br /> ANIMAL CLASSIFICATION LBS. (N)/ A--5Lactatin milkin 56 <br /> D & Bred Heifer .45 <br /> Heifer 1 ear- bred . 45 <br /> Calves 3 months - 1 ear . 45 <br /> Bab Calves (up to 3 months . 45 <br /> Animal units < typical Holstein dairy cattle, generally accepted by the State Water <br /> Quality Control Hoard: <br /> ANIMAL CLASSIFICATION ANIMAL UNIT (Au) VALUE <br /> Lactatin milkin 1.4 <br /> D Cows 1.12 <br /> Bred Heifer 1.02 <br /> Heifer 1 ear- bred 1.02 <br /> Calves 3 months - 1 ear 49 <br /> -Baby Calves (up to 3 months 29 <br /> See Page 47 for References and Bibliography <br /> ©Western Dairy Design Associates, Inc.2003 <br /> Page 4 <br />