STUDIES ON NUTRITIVE VALUE OF COTTONSEED MEALS, FISH MEAL AND SOYBEAN MEAL FOR THE GROWING BARROWS
会议名称:《面向21世纪的动物科学与动物医学国际研讨会》
会议日期:2000年
学科分类:090502[农学-动物营养与饲料科学] 0905[农学-畜牧学] 09[农学]
关 键 词:growing barrows protein feedstuffs N-balance ileal digestibility
摘 要:正True digestibilites of amino acids, nitrogen (N) and energy and the true utilization of N (Nbalance trial) were evaluated for steam-processed cottonseed meal (CSM), screw-pressed CSM, screw-solvent processed CSM, Peru fish meal, soybean meal and ground alfalfa. The trial was conducted with six Large White×Large White×Laiwu growing barrows fitted with simple Tcannulae approximately 5-10cm proximal to the ileocecal valve in a 6×6 Latin square design. The net protein true utilization was 27.3, 27.7, 29.2, 46.4, 40.2 and 20.6%;the ileal true digestibility of Lys was 75.4, 78.5, 82.1, 96.3, 91.7 and 62.7%;the ileal true digestibility of Met