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Life Sciences Commons

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Dairy Science

Kansas State University Libraries

Kansas Agricultural Experiment Station Research Reports

2001

2001; Kansas Agricultural Experiment Station contribution; no. 02-133-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 881; Dairy; Heat stress; Cow comfort; Cow cooling

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Full-Text Articles in Life Sciences

Effect Of Fan Placement On Milk Production And Dry Matter Intake Of Lactating Dairy Cows Housed In A 4-Row Freestall Barn (2001), John F. Smith, Joseph P. Harner, S.E. Defrain, Michael J. Brouk Jan 2001

Effect Of Fan Placement On Milk Production And Dry Matter Intake Of Lactating Dairy Cows Housed In A 4-Row Freestall Barn (2001), John F. Smith, Joseph P. Harner, S.E. Defrain, Michael J. Brouk

Kansas Agricultural Experiment Station Research Reports

Heat stress reduces milk production, feed intake, and reproductive efficiency each summer in Kansas. Without heat abatement procedures, milk production may decline 20- 30% during the summer months. Research has shown that supplemental fan cooling in combination with low pressure feedline sprinklers can reduce the effects of heat stress on milk production and feed intake. One critical issue in heat stress abatement is the location of fans in a 4-row freestall barn. Research conducted during the summer of 2000 on a northeast Kansas dairy found that locating fans over both the feedline and head-to-head freestalls increased milk production 5.8 lb/cow/d …