摘要
It was evaluated intake, rumen and intestinal digestibility and passage and digestion rates in bovines fed diets constituted of corn silage, crushed sugar cane and given fresh, crushed sugar cane and given after 72 hours of storage, ensiled sugar cane with 1% of calcium oxide and with no treatment and a same concentrate fixed at 1% of body weight. All roughage was corrected to contain 10% of crude protein. It was used five rumen-fistulated bovine with average weight of 240 ± 15 kg, distributed in a 5 × 5 Latin square. Abomasum and total fecal collection and two rumen evacuations were carried out in the morning. Animals fed corn silage based diet presented greater rumen digestibility of the protein and intestinal digestibility of the ether extract, greater intake and passage of dry matter, justifying greater intakes of dry matter and neutral detergent fiber corrected for protein and ash (NDFap). The greatest passage rates in animals fed fresh sugar cane based diet justify greater intakes of dry matter and NDFap in relation to the one observed with sugar cane silage supply. Animal consuming corn silage diets present greater dry matter passage rate and NDFap digestion. Diets with fresh sugar cane, stored or not, favor dry matter passage rate and intake, in relation to ensiled sugar cane. The use of calcium oxide in the ensilage does not improve nutrient digestibility neither passage rate of the diet. Sugar cane stored for 72 hours has digestible traits similar to the ones of fresh sugar cane
摘要译文
据评估摄入量，瘤胃和肠道消化和推移和消化速率在牛日粮组成玉米青贮，碎甘蔗和鲜给出，压碎的甘蔗和72小时储存后给予，青贮甘蔗与氧化钙的1％25，并与无处理和相同浓缩物固定在体重的1％25所有粗粮已得到纠正含有10％用于原油proteinIt 25 5瘤胃瘘管的牛平均体重240卤15公斤，分布在5脳5拉丁方皱胃和总粪便采集和两个瘤胃后送分别在上午进行饲喂青贮玉米为主的饮食习惯提出了动物蛋白的更大的瘤胃消化率和醚提取物小肠消化率，摄入更多的通道和干物质，证明的蛋白质和灰分纠正干物质和中性洗涤纤维摄入量较大（NDFap）在动物中最大的通过率喂新鲜甘蔗为主的饮食习惯有关证明干物质和NDFap更大的进气口与甘蔗青贮供给观察到的动物食用玉米青贮饲料目前更大的干物质通行率和NDFap digestionDiets用新鲜甘蔗，储存或没有，有利于干物质流通速率和摄入量，相对于在青贮饲料青贮糖caneThe使用氧化钙的不改善营养物质消化率的饮食的既不通过速度存储72小时甘蔗具有类似于新鲜甘蔗的那些可消化性状
MENEZES, Gustavo Chamon de Castro et al.. Total and partial digestibility, rates of digestion obtained with rumen evacuation and microbial protein synthesis in bovines fed fresh or ensiled sugar cane and corn silage.[J]. Revista Brasileira de Zootecnia, 2011,40(5): 1104-1113