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动物营养学报 2008, Vol. 20 Issue (02) :217-222    DOI:
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Effects of Oilseeds on Apparent Digestibility, Milking Performance and Blood Indices of Dairy Cows in Early Lactation
JI Peng, CHEN Ping, LI Sheng-li*, CAO Zhi-jun
(State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China)
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Abstract: Eighty (43±25 DIM) Holstein cows in early lactation were used in a 10-wk trial to explore the effects of three kinds of oilseeds, which were rich in unsaturated fatty acids, on the milk production and composition, digestibility of diets and blood indices. They were randomly allotted to four groups and exposed to one of the listed four is onitrogenous and isoenergetic total mixed ration with ad libitum feeding, in which one basal diet was for the control group, the other three were added with 10% (DM of TMR) extruded soybeans (ESB), 5% ground canola seed (GCS) and 10% whole cottonseeds (WCS) respectively, to replace equal portion of concentrate or forage in the basal diet, making the trial diets contain about 5% of crude fat. The results showed that 1) the apparent digestibility was increased in ESB group, while lower in GCS and WCS groups; 2) compared with the control group, BCS of groups added with oilseeds were all improved; milk production of ECS group was increased (P<0.05); furthermore, milk protein yield of ECS group was also the highest, but milk fat yield was lower than that of the other groups (P>0.05); 3) the contents of total cholesterol, HDL, LDL, and triglyceride in blood were higher in groups supplemented with oilseeds than in control group.
KeywordsDairy cow;Oilseed;Extruded soybean;Canola seed;Whole cottonseed;Milking performance;Apparent digestibility     
引用本文:   
. [J]. 动物营养学报, 2008,V20(02): 217-222
. Effects of Oilseeds on Apparent Digestibility, Milking Performance and Blood Indices of Dairy Cows in Early Lactation[J]. Chinese Journal of Animal Nutrition, 2008,V20(02): 217-222.
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