Nazli Muhamad Hazim, Halim Ridzwan Abdul, Abdullah Amin Mahir, Hussin Ghazali, Samsudin Anjas Asmara
Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
Department of Agribusiness, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
Trop Anim Health Prod. 2018 Jun;50(5):1119-1124. doi: 10.1007/s11250-018-1538-2. Epub 2018 Feb 17.
The potential of using whole corn crop silage and rice straw as an alternative feed for the beef cattle based on the intake and growth performance were evaluated. Using randomised completely block design, nine adult Mafriwal cattle were blocked intro three groups and treated with three different forage diets supplemented with 20% pelleted palm kernel cake on dry matter basis. The treatments were 100% rice straw (RS), 100% corn silage (CS) and an equal mixture of rice straw and corn silage (MIX) fed ad libitum. The animals were housed in individual pens, and the feeding trial was conducted for 12 weeks with 2 weeks of adaptation period. The results showed that CS had the best feed nutritive composition with the lowest concentration of highly indigestible fibre and the highest concentration of organic matter and energy. The CS also had the highest intake, and the corn silage inclusion in MIX managed to improve the intake on par with CS in terms of the dry matter intake of body weight (DMI of BW), voluntary intake (VI) and crude protein (CP) intake. Cattle fed with CS gave the highest and most stable BW gain with an average daily gain (ADG) of 808 g/day rivalling cross-bred cattle fed with high amount of concentrates. The all straw diet (RS) supplemented with PKC recorded a positive ADG of 133 g/day while the MIX gave 383 g/day matching total Napier grass diet.
基于采食量和生长性能，评估了将全株玉米青贮饲料和稻草用作肉牛替代饲料的潜力。采用随机完全区组设计，将9头成年马弗里瓦尔牛分为三组，并在干物质基础上用三种不同的牧草日粮处理，每种日粮添加20%的颗粒状棕榈仁粕。处理方式为随意采食100%稻草（RS）、100%玉米青贮饲料（CS）以及稻草和玉米青贮饲料的等量混合物（MIX）。动物单独饲养在栏舍中，饲养试验进行12周，有2周的适应期。结果表明，CS具有最佳的饲料营养成分，难消化纤维浓度最低，有机质和能量浓度最高。CS的采食量也最高，并且MIX中添加玉米青贮饲料后，在体重干物质采食量（DMI of BW）、随意采食量（VI）和粗蛋白（CP）采食量方面，其采食量提高到与CS相当的水平。饲喂CS的牛体重增加最高且最稳定，平均日增重（ADG）为808克/天，可与饲喂大量精饲料的杂交牛相媲美。添加PKC的全稻草日粮（RS）记录的正ADG为133克/天，而MIX为383克/天，与全象草日粮相当。
