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http://dx.doi.org/10.5333/KGFS.2004.24.1.043

The Effects of Corn Silage and Roughages Feeding Systems on Milk Yield and Compositions  

이상무 (상주축산업협동조합)
이준영 (김천농업기술센터)
Publication Information
Journal of The Korean Society of Grassland and Forage Science / v.24, no.1, 2004 , pp. 43-52 More about this Journal
Abstract
This study was carried out to determine the effect of corn silage and roughage feeding systems on milk yield and milk compositions. The experimental design was allotted into 3 treatments according to the feeding systems of rice straw(rice straw+concentrate: T1), corn silage(corn silage + concentrate: T2) and TMR treatment(Total mixed rate : roughage + concentrate: T3). This research was carried out from Oct. 1988 to Mar. 1999 at Kimcheon Kyungbook. The results obtained were summarized as follows: 1. The milk yield increased upon T2(31.9$\pm$3.2kg) > T3(29.6$\pm$3.8kg) > T1 treatment(22.5$\pm$2.0kg)(P<0.05), but cows with T2 and T3 produced the highest at third parity while T1 at forth parity. 2. The milk fat percentage was the highest at T3 treatment(3.79$\pm$0.31%), and on the other hand T1 treatment appeared the lowest percentage. Cow at 2nd parity produced the highest milk fat contend over the other parity. 3. There was no significant difference in protein content between treatments and parity, but T2 and T3 were higher than T1 4. Treatment did not affact content of SNF even though T2 and T3 of the SNF revealed to higher than T1. T5 was T3(12.51$\pm$0.57%)>T1(11.71$\pm$0.62%)>T2 treatment(11.52$\pm$0.55%). These were not significant. 5. Somatic cell counts were the highest at T1(39.6 ${\times}$ $10^4$cell/ml), but T2 treatment was the lowest as 28.7 ${\times}$ $10^4$ cell/ml. These results indicates that com silage(T2) and TMR treatment(T3) could be recommended
Keywords
Rice straw; Com silge; TMR; Milk yield; Milk compositions;
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