期刊文献

Effects of a potato pulp silage supplement on the composition of milk fatty acids when fed to grazing dairy cows 收藏

饲喂时要放牧奶牛对乳中的脂肪酸组成的马铃薯浆青贮添加剂的影响

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作者

Maimaijiang Zunong[a][c]; Tuerxun Tuerhong[d]; M. Okamoto[b]; A. Hongo[b]; M. Hanada[b]

作者单位

[a] United Graduate School of Agricultural Sciences, Iwate University, Morioka, Ueda 3-chome, Iwate 020-8550, Japan [b] Department of Agro-environmental Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan [c] Xinjiang Agricultural Vocational Technical College, Wenhua Road No. 29, Changji 831100, China [d] College of Grassland and Environmental Science, Xinjiang Agricutural University, Nanchang road 42, Urumqi, Xinjiang 830052, China

关键词

Grazing; Potato pulp silage; Barley; Milk fatty acid; Conjugated linoleic acid

关键词译文

放牧;马铃薯浆青贮饲料;大麦;乳脂肪酸;共轭亚油酸

发布日期

17 May 2009

页码

81–91

DOI

10.1016/j.anifeedsci.2009.04.001

来源信息

Animal Feed Science and Technology ISSN：0377-8401, 2009年, 152卷, 1-2期, 81–91页

摘要

This study was completed to determine the effects of potato pulp silage (PPS) as a diet supplement on the composition of milk fatty acids in grazing dairy cows in comparison to a barley grain supplement. Eight late lactation Holstein dairy cows were fed grazing based diets supplemented with 150 g/kg of PPS (‘PPS’) as a substitute for barley (‘barley’), and grazed on 4.3 ha swards, mainly containing orchard grass, for 56 days. Total dry matter (DM) and pasture DM intake and milk yields, as well as milk composition, did not differ between treatments. The linolenic acid intake did not differ (329 g/day vs. 323 g/day DM). The trans11C18:1vaccenic acid (VA) concentration in blood was higher in cows fed PPS (2.4 g/100 g FA) compared to those fed barley (1.9 g/100 g FA). There were no differences between treatments in the cis9trans11conjugated linoleic acid (CLA) concentration in blood. The short-chain and medium-chain fatty acids in milk also did not differ between treatments. The VA concentration in milk was increased in cows fed PPS (2.32 g/100 g FA) compared to those fed barley (1.84 g/100 g FA), and CLA was higher in cows fed PPS (1.25 g/100 g FA) than those fed barley (0.95 g/100 g FA). Milk CLA concentration was positively correlated to blood VA concentration. Results suggest that an increase in milk CLA concentration is related to an increase of the VA concentration in blood by Δ⁹-desaturase in mammary glands in the PPS fed compared to barley fed groups.

摘要译文

被研究已经完成，以确定相比于大麦补充的马铃薯浆渣青贮（PPS），其为饮食补充剂对牛奶脂肪酸放牧奶牛的组合物的影响。八泌乳后期荷斯坦奶牛饲喂基础日粮放牧为辅150克/千克PPS（“PPS”）作为替代大麦（''''大麦''''），并擦过4.3公顷swards，主要含果园草，56天。总干物质（DM）和牧草干物质采食量和牛奶产量，以及牛奶成分，没处理之间不同。亚麻酸的摄入量没有显着差异（330克/日主场迎战323克/天DM）。该trans11C18：在血1vaccenic酸（VA）的浓度较高，奶牛饲喂的PPS（2。4克/ 100g的FA）相比，这些馈大麦（1.9克/ 100克，FA）。有在血液中的cis9trans11conjugated亚油酸（CLA）的浓度治疗之间没有差异。牛奶中的短链和中链脂肪酸还没有治疗方法之间是不同的。牛奶中的VA浓度在奶牛饲喂的PPS（2增加。32克/ 100g的FA）相比，这些馈大麦（1.84克/ 100克，FA）以及CLA较高，奶牛饲喂的PPS（1.25克/ 100克，FA）高于饲喂大麦（0.95克/ 100克，FA）。牛奶CLA的浓度呈正相关血液浓度的弗吉尼亚州。结果表明，增加牛奶的CLA浓度是相关于血液增加了VA浓度由SUP 9 / SUP在PPS乳腺-desaturase相比，饲喂大麦喂养组。

Maimaijiang Zunong[a][c]; Tuerxun Tuerhong[d]; M. Okamoto[b]; A. Hongo[b]; M. Hanada[b]. Effects of a potato pulp silage supplement on the composition of milk fatty acids when fed to grazing dairy cows[J]. Animal Feed Science and Technology, 2009,152(1-2): 81–91