Laserfiche WebLink
:Mass Balance of Nitrogen Loading <br /> D(�itraie loading calculations for properties: <br /> efinition;Au is tate abbreviation for animal unit.One animal unit represents 1000 lbs.of body weight. <br /> Nitrogen content of manure from dairy cattle: <br /> Classifcalion of cow: lbs:N per Au <br /> r-Uarta{ing cows 56 lbs. <br /> ]ry cows .45.Ihsi <br /> 3red Heifers .45 lbs: <br /> Heifers- .45 lbs. <br /> Calves .45 lbs. <br /> 3aby calves .45 lbs. <br /> Animal units for typical Holstein dairy cattle,generally accepted by the State Water Quality Control Board: <br /> Lactaiing cow 1.4-Au's <br /> Fi <br /> ry cows 1.12 Au's <br /> red Heifers 1.02 Au's <br /> eifer(1 yr.-bred) 1.02 Au's <br /> Calves(3 mo.-1 yr.) 49 Au's <br /> r�Baby calves .29 Au's <br /> Nitrogen Production Calculations <br /> Projected animal units: Animals A.U.'s each A.U.'s <br /> Lactating cows 1310 1.4 1834 <br /> Qry cows 213 1.12 239 <br /> Bred Heifers 692 1.02 706 <br /> ' <br /> 'if" <br /> (1 yr.-breeding) 231 1.02 235 <br /> Calves 692 0.49 339 <br /> Baby calves 231 0.29 67 <br /> Nitrogen trroduction. <br /> FL" �tatlin9 <br /> ushed Freestalls <br /> Type of Animal A.U.'s Ib of Nlday Nlday <br /> cows 1,834 0.56 1,027 <br /> Dry,cows 0 0.45 0 <br /> ed Heifers 706 0:45 318 <br /> He {1 yr.-breeding} 235 0.45 106 <br /> �alwes 339 0.45 153 <br />+ Baby calves 67 0.45 30 <br /> sFotal lbs.N per day before losses 1,633 <br /> t <br /> Hushed Food Cane <br /> Lacia'ting cowst <br /> rr 0.46 0 <br /> B�r&UoCifers 0.45 0 <br /> eifers(1 yr.-breeding) 0.45 0 <br /> Calves 0.45 0 <br /> Baby calves 0.45 0 <br /> ETotal lbs.N per day before losses 0 <br /> Scraped Corral <br /> aclating cows 0.56 0 <br /> Qry caws . : 0.45 107 <br />+ Bred Heifers 0.45 0 <br /> Heifers(1 yr.-breeding) 4=. 0.45 0 <br /> off Calves f 0.45 0 <br /> Baby calves 0.45 0 <br /> Total lbs.N per day before losses 107 <br /> r� <br /> ll <br /> Ft' <br />