Methane suppression by coconut oil and associated effects on nutrient and energy balance in sheep

被引:150
作者
Machmüller, A [1 ]
Kreuzer, M [1 ]
机构
[1] ETH Zurich, ETH Ctr, LFW, Inst Anim Sci Anim Nutr, CH-8092 Zurich, Switzerland
关键词
coconut oil; methane; energy balance; sheep; ruminants;
D O I
10.4141/A98-079
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
Three different diets with increasing proportions of coconut oil (0, 3.5 and 7%) were fed to six sheep in an incomplete Latin square experiment with four replicates per diet. The diets were composed of hay and concentrates either without or with coconut oil. Concentrate comprised 28.8 and 54.6% of the diet DM in the treatments containing 3.5 and 7% coconut oil, respectively. Wethers on all treatments were fed at 1.2 x maintenance. Gaseous exchange was measured in respiratory chambers. Protozoa counts were reduced (P < 0.05) by 88 and 97% when diets contained 3.5 and 7% coconut oil, respectively, whereas bacteria counts increased (P < 0.05). Supplementation of coconut oil at proportions of 3.5 and 7% suppressed (P < 0.001) methane production by 28 and 73%, respectively, as related to the unsupplemented diet. This proportionately reduced (P < 0.001) the amount of gross energy lost through methane from 7.5 to 5.7 and 2.5%, in diets containing 0, 3.5 and 7% coconut oil, respectively. Assuming a linear suppressive effect of coconut oil, about half of the additional methane reduction with the 7% coconut oil diet as compared with the 3.5% diet was attributed to the substitution of concentrate for hay. Digestibility of cell wall constituents was numerically decreased by coconut oil. Apart from this and its effect on methane emissions coconut oil had no major influence on digestion or on energy and nitrogen balance.
引用
收藏
页码:65 / 72
页数:8
相关论文
共 43 条
[1]  
[Anonymous], ANAL DIETARY FIBER F
[2]  
[Anonymous], STAT METHODEN TIERPR
[3]   PREDICTION OF AMOUNT OF METHANE PRODUCED BY RUMINANTS [J].
BLAXTER, KL ;
CLAPPERTON, JL .
BRITISH JOURNAL OF NUTRITION, 1965, 19 (04) :511-+
[4]   MODIFICATIONS OF METHANE PRODUCTION OF SHEEP BY SUPPLEMENTATION OF ITS DIET [J].
BLAXTER, KL ;
CZERKAWSKI, J .
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE, 1966, 17 (09) :417-+
[5]   INCORPORATION OF SOYA OIL HYDROLYSATE IN THE DIET OF DEFAUNATED OR REFAUNATED SHEEP - EFFECT ON RUMEN FERMENTATION INVITRO [J].
BROUDISCOU, L ;
VANNEVEL, CJ ;
DEMEYER, DI .
ARCHIV FUR TIERERNAHRUNG-ARCHIVES OF ANIMAL NUTRITION, 1990, 40 (04) :329-337
[6]   EFFECT OF SOYA OIL HYDROLYSATE ON RUMEN DIGESTION IN DEFAUNATED AND REFAUNATED SHEEP [J].
BROUDISCOU, L ;
VANNEVEL, CJ ;
DEMEYER, DI .
ANIMAL FEED SCIENCE AND TECHNOLOGY, 1990, 30 (1-2) :51-67
[7]  
BROUWER E., 1965, 3 S EUROPEAN ASS ANI, P441, DOI DOI 10.1017/S1751731118001489
[8]   EXCRETION OF PURINE DERIVATIVES BY RUMINANTS - EFFECT OF EXOGENOUS NUCLEIC-ACID SUPPLY ON PURINE DERIVATIVE EXCRETION BY SHEEP [J].
CHEN, XB ;
HOVELL, FDD ;
ORSKOV, ER ;
BROWN, DS .
BRITISH JOURNAL OF NUTRITION, 1990, 63 (01) :131-142
[9]   CHANGES IN RUMEN METABOLISM OF SHEEP GIVEN INCREASING AMOUNTS OF LINSEED OIL IN THEIR DIET [J].
CZERKAWSKI, JW ;
CHRISTIE, WW ;
BRECKENRIDGE, G ;
HUNTER, ML .
BRITISH JOURNAL OF NUTRITION, 1975, 34 (01) :25-44
[10]   METABOLISM OF OLEIC LINOLEIC AND LINOLENIC ACIDS BY SHEEP WITH REFERENCE TO THEIR EFFECTS ON METHANE PRODUCTION [J].
CZERKAWSKI, JW ;
BLAXTER, KL ;
WAINMAN, FW .
BRITISH JOURNAL OF NUTRITION, 1966, 20 (02) :349-+