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Kansas Agricultural Experiment Station Research Reports
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; Freestalls; Cow comfort
Articles 1 - 2 of 2
Full-Text Articles in Life Sciences
Influence Of Freestall Building Orientation On Comfort Of Lactating Dairy Cattle During Summer Heat Stress (2001), John F. Smith, Joseph P. Harner, Michael J. Brouk
Influence Of Freestall Building Orientation On Comfort Of Lactating Dairy Cattle During Summer Heat Stress (2001), John F. Smith, Joseph P. Harner, Michael J. Brouk
Kansas Agricultural Experiment Station Research Reports
A trial was conducted during the summer of 2000 to evaluate the effect of freestall building orientation"”east-west vs. northsouth"” on respiration rates of lactating dairy cows, temperature-humidity index (THI) in the barns, barn temperature, and barn humidity. Differences between ambient and barn temperature and THI were higher in east-west vs. north-south orientated barns. Respiration rates were higher in north-south than in east-west orientated structures. The magnitude of differences between barn and ambient temperatures and THI did not fully explain differences in respiration rates between north-south and east-west orientated barns. Other factors such as solar radiation, airflow, and animal stress may …
Evaluation Of Heat Stress In 4- And 6-Row Freestall Buildings Located In Northwest Iowa (2001), John F. Smith, Joseph P. Harner, Michael J. Brouk
Evaluation Of Heat Stress In 4- And 6-Row Freestall Buildings Located In Northwest Iowa (2001), John F. Smith, Joseph P. Harner, Michael J. Brouk
Kansas Agricultural Experiment Station Research Reports
A trial was conducted in the summer of 2000 to evaluate the effect of 4- and 6-row freestall barns located in northwest Iowa on barn temperature, barn humidity, and respiration rates of lactating Holstein cows. Temperature, temperature-humidity index (THI), and respiration rates were greater in 6-row than 4-row freestall barns. Respiration rates were greater in 6-row versus 4-row buildings. The magnitude of difference in the temperature and THI variables may not explain the differences detected in respiration rates. It is possible that a relationship between animal density and social interaction could increase respiration rates when animal density is increased. It …