2010•Xumu yu shouyiRequires access
Effects of dietary Phytosterols on milk yield and composition in dairy cows
LV Run-quan
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Abstract
In order to study the effect of the mixture of Phytosterols and XOS on production performance in dairy cows, 24 cows were selected and divided into 3 groups:control, treatment Ⅰ and Ⅱ groups according to age, lactation and milk yield. The control group fed TMR and the treatment group Ⅰ and Ⅱ were supplemented 40 and 80 (g/d/cow) the mixture of Phytosterols and Xylo-oligosaccharide ( kangnaibao~(TM)), respectively. The results showed that milk yield was improved 2. 07 kg/d (5.64%, P0. 05) and 1.74 kg/d (4. 75%, P 0. 05 ), the rate of milk fat improved 8.22% (P0. 01 ) and 2. 97%, respectively in the treatment Ⅰ and Ⅱ compared with control. In addition, the rate of milk protein was improved 2.45% (P0. 05) and 1.05% (P0. 05) and SNF improved 1.29% (P0. 05) and 0. 23%, respectively in each treatment group. Furthermore, somatic cell counts (SCC) were decreased by 37.31% and 19.34%, and milk urea nitrogen level decreased 5.29% (P0. 05) and 7.58% (P0. 01 ), respectively in treatment group Ⅰ and Ⅱ. Our results suggested that supplementing the mixture of Phytosterols and XOS could improve the tendency of milk yield and composition in dairy, cow.