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      • 혼파초지에서 질소시비수준과 방목율이 목초 및 육우생산에 미치는 영향

        현봉수,김문철,김영호,송성언,이승협 제주대학교 농과대학 제주도축산문제연구소 1986 畜産論叢 Vol.1 No.1

        Effects of N fertilizer levels and stocking rates on beef production in a mixed pastiire of orchard-grass, perennial ryegrass, tall fescue, red clover and alsike clover were studied using 3 levels of N fertilizer (50, 100 and 200 kg/ha) and 3 stocking rates (3,4 and 5 head /ha). The summarized results are the following; 1. Increasing nitrogen fertilizer on the mixed pasture increased dry matter yield and protein content(P<0.05) of the pasture species. The stocking rate did not influence either dry matter yield or protein content. 2. The percentage of pasture species increased and that of weeds decreased with increasing N fer-tilizer levels. lncreasing stocking rate from 3 to 5 heads/ha significantly influenced that of the other pastures and weeds. 3. Herhage intake per animal increased at the lower stocking rate, but total herbage intake per ha increased at the higher stocking rate, Increasing nitrogen fertilizer decreased herbage intake per animal , but slightly higher intake per animal was obserbed at 5 head stocking rate. 4. No significant difference in weight gain/ha was found among N levels and stocking rates ussd. Live weight gain per animal was greater at the higher N level and also at the louer stocking rate.

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