Effect Of Compound Chinese Herbal Medicine On Feed Intake,Drinking Water,antioxidation And Reproductive Hormones Of Dairy Cows In Late Pregnancy

The aim of the experiment was to study the effects of adding compound Chinese herbal medicines on the feed intake,drinking water,immunity,antioxidant capacity,reproductive performance and serum biochemical indexes of Chinese Holstein cows.In this experiment,18 young Holstein cows with similar body weight and similar gestation period were randomly divided into 3 groups（6 in each group）.Compound Chinese herbal medicines containing 0 g（control group）,200 g（treatment group A）and 300 g（treatment group B）were added to the feed.The pre-feeding period was 7days,and the trial period was 28 days.The feed intake and drinking water of the cows were recorded statistically,and the serum biochemical indexes and related enzyme contents of the cows were determined.The feed intake and water consumption of the cows were recorded statistically.Determination of the contents of various indicators of dairy cow sera were carried out.The results showed that:1.The feed intakes of the treatment group A and B were significantly lower than those of the control group（P<0.01）,but there was no difference between the treatment group A and B.In terms of saving feed and saving money,there was no significant difference in the treatment of A and B.Because of the large amount of Chinese herbal medicine added in the treatment of group B,there was no cost-saving effect;In terms of drinking water,the amount of basic drinking water in the rainy weather was significantly higher in the treatment group A than in the control group（P<0.01）.The total drinking water was significantly higher in the control group from1 to 7 days than in both treatment group A and group B（0.01<P<0.05）.The digestibility of neutral detergent fibers,acid detergent fibers,calcium and phosphorus was significantly higher in the control group than in the treatment group A and B（P<0.05）.2.Serum T-AOC concentration was significantly higher in the treatment group B than in the control group and the treatment group A at 7,14,21,and 28 days（P<0.05）,and there was no significant difference between the treatment group A and the control group（P>0.05）.Serum CAT concentration was significantly higher in the A and B groups than in the control group at 14 days（P<0.05）,and the treatment group B was significantly higher than the treatment group A（P<0.05）.Treatment group A was significantly higher than control group at 21 days（P<0.05）.Serum GSH-PX concentration was significantly higher both in the A and B group than that in the control group at 7 and 21 days（P<0.05）,which in treatment group B was significantly higher than control group at 28 days（P<0.05）.Serum SOD concentration was significantly higher both in the A and B group than in the control group at 7 and 28days（P<0.05）.At 14 days,treatment group A was significantly higher than control group and treatment group B（P<0.05）.Serum MDA concentration was significantly lower in the A and B groups than in the control group at 7,21,28 days（P<0.05）.At14 days,treatment group B was significantly lower than control group and treatment group A（P<0.05）.Serum IgG concentration in the control group was significantly lower than in the treatment group A and B at 14 days（P<0.05）.At 28 days,serum IgG concentration in group B were significantly higher than control group and treatment group A（P<0.05）.3.Serum TP concentration was significantly increased in group B at 7 and 14days（0.01<P<0.05）compared with the control group.Serum TP concentration was significantly higher in group B than group A and the control（P<0.01）on the 21th day.The serum GLB concentration was significantly higher in group B than the control on the 14th,21th and 28th day（0.01<P<0.05）.At 7 days,serum TG concentration in treatment group B was significantly lower than that in control and treatment group A（0.01<P<0.05）,and at 14 days serum TG concentration in whether treatment group A or B was significantly lower than that in control group（0.01<P<0.05）,Compound Chinese herbal medicine has no significant effect on serum ALB and TC concentration（P>0.05）.Serum enzyme CK concentration was significantly lower in the treatment group B than in the treatment group A at 7 days,and CK concentration in the treatment group B was significantly lower than the control group at 14 days.The serum AST concentration of the treatment group A on the 7th day was significantly higher than the control group（0.01<P<0.05）.There was no significant effect on serum LDH,ALP and ALT concentration（P>0.05）.4.On the 7th and 14th day,the serum E₂ concentration in the control group was significantly higher than that in the treatment group A and B（P<0.05）.At 28 days,treatment group B was significantly higher than control group and treatment group A（P<0.05）.Serum P₄ concentration was significantly higher in the treatment group B than in the control group at 7 days（P<0.05）.There was no significant difference in serum LH and FSH concentration between the control group and the treatment group A and B（P>0.05）.