饱和链烷技术测定绵羊食性食量精确性研究
Study on the Accuracy and Precision of n-Alkanes as Markers for Estimation of Diet Composition and Herbage Intake of Sheep
查看参考文献28篇
文摘
|
【目的】验证饱和链烷技术测定家畜食性和食量的精确性,确定绵羊粪便中链烷的回收率。【方法】于2004年秋季在中国科学院内蒙古草原生态系统定位研究站用不同放牧演替阶段的优势植物羊草(Lcymus chincnsis)、糙隐子草(Cleistogenes squarrosa)和冷蒿(Artemisia frigide)按一定比例混合组成日粮,饲喂9只2岁羯羊,每只羊投喂一粒QSM胶囊,试验期内每天记录绵羊实际牧草采食量、采食成分和排粪量,利用气相色谱分析牧草和粪样的链烷含量,应用链烷技术测定绵羊的排粪量、不同牧草呆食比例和总干物质采食量,并与实际值进行比较。【结果】3种牧草链烷模式存在种间差异;绵羊粪便中链烷的回收率随链烷长度的增加而线性增加;绵羊排粪量测定值与实际值存在极显著的正相关(P〈0.01,r=0.9994);绵羊采食羊草、糙隐子草和冷蒿比例的测定值与实际值存在极显著(P〈0.01)正相关,相关系数分别为0.9913、0.9864和0.9999;绵羊干物质采食量用C33:C32和C31:C31比值测定的值分别比实际值低4%(±1.3%)和7%(±1.3%),但差异不显著(P〉0.05)。【结论】饱和链烷技术可以精确测定典型草原绵羊的排粪量、食物组成和采食量。 |
其他语种文摘
|
[Objective] An experiment was carried out to determine the accuracy and precision of n-alkanes as markers for estimation of feces output, diet composition and herbage intake of sheep, and measure fecal recoveries of.n-alkanes in sheep, [Method] The experiment was carried out at the Inner Mongolia Grassland Ecosystem Research Station of the Chinese Academy of Sciences in autumn 2004. Nine wethers selected from a group at 2-years-old of age were fed with fresh mixtures ofLeymus chinensis (30%), Cleistogenes squarrosa (20%) and Artemisiafrigida (50%) in known proportions and amounts for 14 days. Artificial QSM capsules were dosed during the experiment. The samples of herbage and feces were collected daily for 7 days and dried for analysing the n-alkane concentration by a gas chromatography. [Result] The results showed that there was a difference in concentration of n-alkanes among 3 species forages, and fecal recoveries of n-alkanes linear increased with increasing carbon chain lengths. There were significant correlations (P 〈 0.01) between estimated feces output (r = 0.9994), dietary composition ofL. chinensis (r = 0.9913), C. squarrosa (r = 0.9864), A. frigida (r = 0.9999) and herbage intake using n-alkane technique and the actual values. Estimated intakes were 4% (±1.3%) and 7% (±1.3%) lower than the actual intake by sheep based on C33:C32 and C31:C32 n-alkane ratios, respectively, but were not differ significantly (P 〉 0.05). [Conclusion] In conclusion, n-alkane technique can provide an accurate and precise estimation of feces output, diet composition and herbage intake of sheep. |
来源
|
中国农业科学
,2006,39(7):1472-1479 【核心库】
|
关键词
|
绵羊
;
饱和链烷
;
食性
;
食量
;
精确性
|
地址
|
1.
中国农业大学草地研究所, 北京, 100094
2.
中国科学院西北高原生物研究所, 西宁, 810008
|
语种
|
中文 |
文献类型
|
研究性论文 |
ISSN
|
0578-1752 |
学科
|
畜牧、动物医学、狩猎、蚕、蜂;轻工业、手工业、生活服务业 |
基金
|
国家自然科学基金
;
国家自然科学基金
;
中国科学院知识创新工程重要方向项目
|
文献收藏号
|
CSCD:2509145
|
参考文献 共
28
共2页
|
1.
汪诗平. 不同放牧率对内蒙古细毛羊生长和繁殖性能的影响.
中国农业科学,2003,36:1545-1553
|
CSCD被引
6
次
|
|
|
|
2.
汪诗平. 绵羊的采食行为与草场空间异质性关系.
生态学报,1999,19:431-434
|
CSCD被引
15
次
|
|
|
|
3.
汪诗平. 不同放牧季节绵羊的食性及食物多样性与草地植物多样性间的关系.
生态学报,2000,20:951-957
|
CSCD被引
29
次
|
|
|
|
4.
汪诗平. 几种草食动物日粮植物组成研究技术和方法的比较.
草业学报,1995,4(3):8-16
|
CSCD被引
11
次
|
|
|
|
5.
Mayes R W. The use of dosed and herbage n-alkanes as markers for the determination of herbage intake.
Journal Agricultural Science Cambridge,1986,107:161-170
|
CSCD被引
19
次
|
|
|
|
6.
Malossini F. n-Alkane content of some forages.
Journal Science Food Agricultural,1990,53:405-409
|
CSCD被引
6
次
|
|
|
|
7.
Dove H. The use of plant wax alkanes as marker substances in studies of the nutrition herbivores:a review.
Journal Agricultural Research Australian,1991,42:913-952
|
CSCD被引
5
次
|
|
|
|
8.
Dove H. Using the n-alkanes of plant cuticular wax to estimate the species composition of herbage mixtures.
Journal Agricultural Research Australian,1992,43:1711-1724
|
CSCD被引
14
次
|
|
|
|
9.
Mayes R W. Measurement of dietary nutrient intake in free-ranging mammalian herbivores.
Nutrition Research Reviews,2000,13:107-138
|
CSCD被引
15
次
|
|
|
|
10.
Zhang Y J. Introduction of plant wax alkane technique.
Proceedings of China International Grassland Conferences,2002:77-81
|
CSCD被引
5
次
|
|
|
|
11.
Laredo M A. The potential for using n-alkanes in tropical forages as a marker for the determination of dry matter intake by grazing ruminants.
Journal Agricultural Science Cambridge,1991,117:355-361
|
CSCD被引
6
次
|
|
|
|
12.
Olivan M. Effect of temperature on alkane extraction from faeces and herbage.
Journal Agricultural Science Cambridge,1999,132:305-312
|
CSCD被引
8
次
|
|
|
|
13.
Kelman W. Cuticular wax alkanes and alcohols used as markers to estimate diet composition of sheep.
(Ovis aries)Biochemical Systematics and Ecology,2003,31:919-927
|
CSCD被引
5
次
|
|
|
|
14.
Dove H. Effects of species.
Journal Agricultural Research Australian,1996,47:1333-1347
|
CSCD被引
3
次
|
|
|
|
15.
Dove H. Using a least-squares optimization procedure to estimate botanical composition based on the alkanes of plant cuticular wax.
Australian Journal of Agricultural Research,1995,46:1535-1544
|
CSCD被引
11
次
|
|
|
|
16.
Zhang Y J. Differences in the n-alkane concentration of four species of wild plants in Japan.
Grassland Science,2002,48:50-52
|
CSCD被引
5
次
|
|
|
|
17.
Dove H. Plant waxes components:A new approach to estimating intake and diet composition in herbivores.
Journal of Nutrition,1996,126(1):13-26
|
CSCD被引
17
次
|
|
|
|
18.
Dove H. Faecal recoveries of the alkanes of plant cuticular waxes in penned and in grazing sheep.
Proceedings XVI International Grassland Congress,1989:1093-1094
|
CSCD被引
2
次
|
|
|
|
19.
Vulich S A.
Journal of Agricultural Science,1991,116:319-323
|
CSCD被引
5
次
|
|
|
|
20.
Ordakowski A L. Alkanes as internal markers to estimate digestibility of hay or hay plus concentrate diets in horses.
Journal of Animal Science,2001,79(6):1516-1522
|
CSCD被引
3
次
|
|
|
|
|