연중 매초급여(埋草給與)와 볏짚 및 건초혼합 급여가 우유생산에 미치는 영향 = Effects of All Silage with and without Ricestraw or Hay for Dairy Lactating Cows

다국어 초록 (Multilingual Abstract)

The effect of cornsilage and ricestraw, cornsilage and hay, cornsilage on milk yield, milk fat, live weight and economic analysis were studied by ad libitum experimental design.
Four difference treatments were tested with the following experimental rouhage per day in forage basis: corn silage + rice-straw (25㎏ + 5㎏), corn silage + hay (25㎏ + 3㎏), corn silage + hay (20㎏ + 2㎏), corn silage (30㎏).
Thereon, concentrate was fed according to milk production during the experimental period.
The results obtained are as follows:
1. Dry matter intake per day during the experimental period among four treatments showed little difference.
2. The animal in treatment T2 tended to give higher milk yield than those in treatment C. T1, T3, but the difference was not significant statistically.
3. The cows in treatment T3 gave milk of higher fat content than those in treatment C, T1 or T2, but the difference was not significant statistically.
4. Treatment T1 gave the most increase in body weight following by treatment T2, C, and Treatment T3 gave the least increase in body weight during the experimental period but the difference was not signifficant.
5. Treatment T1 gave the most income in economic analysis followed by treatment T1, T3, and treatment C gave the least income in economic analysis during the experimental period.