Effect of natural oil supplement to ration on methane emission and fattening in ruminant animal

L。添加红花油对控制绵羊甲烷排放和营养价值的影响：4只绵羊饲喂日粮(粗饲料：精料=2：8)，日粮水平为80%。喂食。红花油的添加水平分别为日粮的2.5%、5.0%和7.5%。随着红花油添加量的增加，甲烷排放的下降率较高。补充红花油提高了营养价值。2.添加菜籽油对饲喂不同比例粗精料绵羊呼气甲烷排放的控制：4只绵羊按2%体重水平(干物质基础)饲喂日粮(粗精料=2：8和8：2)。菜籽油的添加比例为日粮的5.0%和7.5%。添加菜籽油后，高粗饲料甲烷排放降低12%，高精料甲烷排放降低15%。添加天然油脂对绵羊甲烷排放及育肥效果的影响：在体外，添加天然油脂可使绵羊的甲烷排放量降低3~11%。用6只羊进行育肥试验。日粮中粗精料比例为2：8，添加天然油2.5%。实验动物饲喂育肥4个月。添加油脂有利于提高饲料转化率，增加不饱和脂肪酸，即皮下油酸和亚油酸，腰部和肋骨肌中的亚油酸。添加天然油脂和甘油对控制绵羊甲烷排放的影响：4只绵羊饲喂日粮(粗饲料：精料=2：8)。在日粮中添加不同不饱和程度的天然油脂和甘油5%。高不饱和原油可显著降低甲烷排放。补充油脂可提高其营养价值。挥发性脂肪酸依次为高不饱和油0x(3e)0x(3e)甘油=低不饱和油0x(3e)不补充的丙酸发酵类型。

l . Effect of safflower oil supplement on control of methane emission and nutritive value in sheep : Four sheep were fed the ration (roughage : concentrate=2:8) at 80% level of ad lib. feeding. Safflower oil was supplemented at the levels of 2.5, 5.0 and 7.5 % of ration. Decreasing rate of methane emission was high as the supplement of safflower oil increased. Nutritional value was improved by safflower oil supplement.2. 2.Control of methane emission from expiratory gas by rapeseed oil supplement in sheep fed different rations of roughage and concentrate : Four sheep were fed the ration (roughage : concentrate=2:8 and 8:2) at 2% level (dry matter basis) of body weight. Rapeseed oil was supplemented at 5.0 and 7.5 % of ration. Methane emission decreased 12% in high roughage and 15% in high concentrate with rapeseed oil supplement, respectively.3. Effect of natural oils supplement on methane emission and fattening in sheep : Methane decreased 3〜11%, by supplements of natural oils, in vitro. Six sheep were used for fattening trial. The ratio of roughage and concentrate was 2:8 and natural oil was supplemented 2.5% to the ration. Experimental animals were fed to fatten for 4 months. By supplement of oil, feed conversion ratio was tended to improve and unsaturated fatty acids increased i.e., oleic and linoleic acids in subcutaneous and linoleic acid in loin and rib muscles.4. Effect of natural oil and glycerol supplements on control of methane emission in sheep : Four sheep were fed the ration (roughage:concentrate=2:8). Natural oils with different unsaturated levels and glycerol were supplemented 5% of diets. Methane emission decreased remarkably by highly unsaturated oil. Nutritive value was improved by supplement of oils. Volatile fatty acid became propionic acid fermentation type of highly unsaturated oil 0x(3E)0x(3E)glycerol=lowly unsaturated oil 0x(3E)non supplement in order.