Cooling systems of the resting area in free stall dairy barn

International Journal of Biometeorology
Ferdinando CalegariErmes Frazzi

Abstract

A study during the summer season evaluated the effect of different cooling systems on behavioral and productive responses of Italian Friesian dairy cows kept in an experimental-free stall barn located in the Po Valley in Italy. The study involved 30 lactating dairy cows subdivided into two groups kept in two pens with external hard court paddock in each free stall. The same cooling system was applied in the feeding area in both pens. A different cooling system in the resting area was applied to the two pens: in the pen SW, the resting area was equipped with fans and misters; in the other, there was simple ventilation (SV). Breathing rate, rectal temperature, milk yield, and milk characteristics (fat, protein, and somatic cell count) were measured. Behavioral activities (standing and lying cows in the different areas, as well as the animals in the feed bunk) were recorded. Mild to moderate heat waves during the trial were observed. On average, the breathing rate was numerically greater in SV compared with SW cows (60.2 and 55.8 breath/min, respectively), and mean rectal temperature remained below 39 °C in both groups during the trial (on average 38.7 and 38.8 °C in SV and SW, respectively. During the hotter periods of the trial,...Continue Reading

References

Jan 1, 1989·Journal of Dairy Science·J S HoganB L Brockett
Jul 1, 1994·Journal of Dairy Science·D V Armstrong
Jul 3, 2003·Journal of Dairy Science·J W West
Sep 9, 2006·Journal of Dairy Science·A Berman
Mar 21, 2007·Journal of Dairy Science·N B CookK Burgi
Apr 16, 2011·International Journal of Biometeorology·Ferdinando CalegariErmes Frazzi
Jul 1, 2010·Animal : an International Journal of Animal Bioscience·U BernabucciA Nardone
Oct 15, 2013·International Journal of Biometeorology·Ferdinando CalegariErmes Frazzi

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Citations

May 5, 2017·Animals : an Open Access Journal From MDPI·Sébastien FournelÉdith Charbonneau
Jun 6, 2017·Animal : an International Journal of Animal Bioscience·R MorettiR Bozzi
Feb 11, 2019·International Journal of Biometeorology·A Berman
Apr 26, 2021·Environmental Science and Pollution Research International·Mateus Medeiros Dos SantosLeonardo Lelis de Macedo Costa

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