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Nitrogen Production by Housing Style: (Au x LBS(N)/Au = Total LBS (N) PER <br /> DAY) <br /> Total Nitrogen produced from cattle in freestalls with flushed concrete lanes: <br /> ANIMAL ANIMAL UNIT(Au) LBSN /Au <br /> CLASSIFICATION VALUE ( ) LBS (N) PER DAY <br /> Lactatin milkin 1344 <br /> D Cows 56 753 <br /> Bred Heifer 0 .45 <br /> 517 0 <br /> Heifer 1 ear- bred 0 .45 233 <br /> Calves (3 months — 1 45 0 <br /> ear 248 .45 112 <br /> Baby Calves (up to 3 49 <br /> months .45 22 <br /> TOTAL LBS (N)/DAY <br /> BEFORE LOSSES: 1,119 <br /> Total Nitrogen produced from cattle in dry lots (scrape): <br /> ANIMAL ANIMAL UNIT (Au) LBS (N)/Aus <br /> CLASSIFICATION VALUE LBS (N) PER DAY <br /> Lactatin milkin 0 <br /> D Cows 175 .56 0.0 <br /> .45 79 <br />_ Bred Heifer 0 <br /> Heifer 1 ear- bred45 0.0 <br /> 172 .45 <br /> Calves (3 months — 1 p 78 <br /> ear .45 0.0 <br /> Baby Calves (up to 3 0 <br /> months .45 0.0 <br /> TOTAL LBS (N)/DAY <br /> BEFORE LOSSES: 156 <br /> See Page 47 for References and Bibliography <br /> B Western Dairy Design Associates, Inc.2003 <br /> Page 6 <br />