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Mass Balance of Nitrogen Loading <br /> Phase I <br /> Nitrate loading calculations for existing properties: <br /> Considering the soil type involved,denitification of nitrate nitrogen to the gaseous form as nitrous oxide <br /> or nitrogen gas will likely occur. <br /> Definition: An is the abbreviation for animal unit. One animal unit represents 1000 lbs. of body weight. <br /> Nitrogen content of manure from dairy cattle: <br /> Classification of cow: Lbs. N per An <br /> Lactating cows . 56 lbs.F_- <br /> Dry cows&Bred heifer .45 lbs. <br /> Heifers .40 lbs. N ., <br /> Calves .40 lbs. <br /> Baby calves .40 lbs. - <br /> Animal units for typical Holstein dairy cattle,generally accepted by the State Water Quality Control <br /> Board: <br /> Lactating cow 1.4 An's <br /> Dry cow/breed heifer 1.2 An's <br /> Heifer(i yr.-bred) 1.1 An's <br /> Calves(3 mo.- 1 yr.) 5 An's <br /> Baby calves .25 An's <br /> Acres available for distribution of agricultural wastes: <br /> Property Owned(Used in phase I): <br /> APN# Total Acres Farmed Acres <br /> 207-210-01• 145 120.0 <br /> 'This parcel is the parcel where the dairy facility is located <br /> Nitrogen production calculations for the Joe DaSilva Dairy: <br /> Projected animal units: <br /> Classification of animal: #Animals Au's per Total Au's <br /> Lactating cows: 1,122 x 1.4 1,570 <br /> Dry cows and bred heifers 128 x 1.2 154 <br /> Heifers(1 yr.-breeding) 0 x 1.1 0 <br /> Calves 0 x .5 0 <br /> Baby calves 0 x .25 0 <br /> Total animal units 1,724 <br /> Nitrogen production from: <br /> Classification of animal: #Au's Lbs N/Au Lbs N per day <br /> Lactating cows 1,570 x .56 879.2 <br /> Dry cows and bred heifers 154 x .45 69.3 <br /> Heifers(1 yr.-breeding) 0 x .0 0 <br /> Calves 0 x .0 0 <br /> Baby calves 0 x .0 0 <br /> _ Total lbs. N per day before losses 948.5 <br /> °Westem Design/David Avila 2000 19 <br />