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Effect of Heat Stress on Laying Hen Performance
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 Title & Authors
Effect of Heat Stress on Laying Hen Performance
Oh, Kwon-Young; Ryu, Byeong-Gi; Chang, Dong-Il; Chang, Hong-Hee; Kwon, Sun-Hong; Park, Sang-Hyuk; Lee, Seung-Joo; So, Jae-Kwang;
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This study was conducted to determine the effect of heat stress on laying hen performance during summer. A total of 180 Hyline-brown layers, 98 days of age, were housed in a enclosed house. The daily maximum temperature in the house was ranged . The egg production was markedly fallen than other days when daily maximum temperature in the layer house became more than . As water intake and feed intake increased to and , the egg production soared. But it was hardly increased more than them. Based on these results, layer house roof should be amply insulated to improve the egg production of layers. If not insulated, the shade curtain should be installed above roof and cool water sprayed before and after 2 p.m. And layers should be provided cool drinking water of about in the day time.
laying hen;heat stress;daily maximum temperature;feed intake;water intake;
 Cited by
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