China Animal Husbandry & Veterinary Medicine ›› 2007, Vol. 34 ›› Issue (6): 5-8.

• 动物营养与饲料科学 •     Next Articles

Effect of Supplementation of Soybean Oil and Linseed Oil on Digestibility of Organic Matters and Fibers in Dairy Cows

HU Zhiyong, WANG Jiaqi, BU Dengpan, YANG Shuli, DENG Lufang, 
WEI Hongyang, ZHOU Lingyun   

  1. State Key Laboratory of Animal Nutrition,Institute of Animal Science，Chinese Academy of Agricultural Sciences,Beijing 100094,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-06-20 Published:2007-06-20

Abstract: Four primiparous Holstein cows with cannulas in the rumen and proximal duodenum were randomly assigned to four diets with a 4×4 latin square experiment. Cows in four treatment were fed high forage（60%DM） diets without oil supplement（CK）, 4% soybean oil（LOC1）, 4% linseed oil（LOC2） or mix of 2% soybean oil and 2% linseed oil（LOC3） on dry matter basis. The objective was to examine the effects of supplemental fat on intake, apparent ruminal digestibility, and total tract digestibility of DM,OM,NDF and ADF in dairy cows. The results indicated that intake, apparent ruminal digestibility, and total tract digestibility of DM,OM,NDF,ADF were not affected by the oil supplementation(P＞0.05）,however the fat supplement tended to reduce the digestibility of DM,OM,NDF,ADF on rumen and total tract.

Key words: dairy cow; linseed oil; soybean oil; digestibility

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