China Dairy ›› 2022, Vol. 0 ›› Issue (3): 24-27.doi: 10.12377/1671-4393.22.03.05

• FEEDING MANAGEMENT • Previous Articles     Next Articles

Effects of Compound Enzyme Preparation on Performance and Apparent Digestibility of Nutrients in Lactating Dairy Cows

LI Qian   

  1. Xichuan County Agricultural Comprehensive Administrative Law Enforcement Team,Xichuan Henan 474450
  • Online:2022-03-25 Published:2022-04-06

Abstract: The purpose of the experiment was to study the effect of compound enzyme preparation on production performance and nutrient apparent digestibility of dairy cows. Thirty-six dairy cows with similar body weight,age,parity,lactation days and lactation quantity were randomly divided into three groups:control group,test I group test II group. Control group was fed with basal diets,Group I and group II were fed with basal diets supplemented with 50 g/head·day and 100 g/ head·day complex enzyme preparations respectively. The results showed that the milk yield and milk fat rate of test group I and II were significantly higher than those of control group(P<0.05),and the dry matter,neutral detergent fiber and crude protein of test group I were significantly higher than those of control group(P<0.05),there was no significant difference between the two groups(P>0.05).The results showed that the production performance and nutrient digestibility of dairy cows could be improved by adding compound enzyme preparation. The best effect was 50 g/head·day.

Key words: compound enzyme preparation, dairy cow, production performance, nutrient apparent digestibility

CLC Number: 

  • S823.5
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