연구활동

Livestock Environmental Lab

논문

Effect of Feed Intake and Water Consumption on Milk Yield and Manure Production in Milking Cows
Journal
Journal of Animal Environmental Science
Vol
13/1
Page
21-28
Author
DY Choi, JH Kwag, CH Park, KH Jeong, JH Kim, YH Yoo, CB Yang, HL Choi, HK Ahn
Year
2007
Date
2007

This experiment was conducted to determine the effect of feed intake and water consumption on milk yield and manure production in milking cows. The average feed intake (dry matter) of milking cows were 19.5 kg/hd/d. Spring (23.9 kg) and fall (22.1 kg) feed intake rates when higher than in the summer (17.0 kg) and winter (15.3 kg/hd/d). The average water consumption of milking cows were . Summer showed the highest value  and winter showed the lowest value . The average milk yield during spring, summer, fall, and winter was 30.8, 24.0, 25.4, and 23.7 kg/hd/d, respectively. Milk yield during spring was found to be statiscally greater than for the other seasons. Manure production of milking cows during spring, summer, fall, and winter was 64.4, 63.5, 60.4, and 51.0 kg/hd/d, respectively. Consequently, a relatively high correlation between milk yield and water consumption , milk yield and feed intake , water, consumption and urine production , feed intake and feces production , and milk yield and feces production  were observed in milking cows. The other hand, correlation between water consumption and feces production , feed intake and urine production