Effect of adding date residue to diet on blood indicators and economic benefits of beef cattle
The purpose of the experiment is to study the effect of adding date residue to the diet on the blood index and economic benefits of beef cattle.48 Angus castration cattle were selected and randomly divided into 4 groups.Each group added 0％(Group Ⅰ),3％(Group Ⅱ),6％(Group Ⅲ)and 9％(Group Ⅳ)of date residue to the diet.Each group had 12 repetitions,each repeated 1 cow,and the test period was 60d.The results showed that(1)there was no significant difference in the blood biochemical indexes of beef cattle between groups(P>0.05).For the blood antioxidant index of beef cattle,the activity of superoxide dismutase in Group Ⅱ and Ⅲ was significantly higher than that of Group Ⅰ and Group IV(P<0.05),while the activity of Superoxide dismutase in Group Ⅲ was significantly higher than that of Group Ⅱ(P<0.05).There was no significant difference in the activity of Superoxide dismutase in Group Ⅰ and Group Ⅳ(P>0.05);There is no significant difference in the total antioxidant capacity,malondialdehyde and glutathione peroxide levels between groups(P>0.05),but the total antioxidant capacity level shows an upward trend with the increase of the addition of jujube residue.(2)Compared with Group Ⅰ,the average daily weight gain of beef cattle in Group Ⅲ and Group Ⅳ increased by 16.54％and 12.60％(P<0.05);the average daily dry material intake of beef cattle in Group Ⅲ and Group Ⅳ increased by 3.45％and 3.6％(P<0.05)respectively;Group Ⅱ,Group Ⅲ and Group Ⅳ 6.57％,11.34％and 7.86％respectively(P<0.05).Compared with Group Ⅰ,the average daily fattening income of beef cattle in Group Ⅱ,Group Ⅲ and Group Ⅳ increased by 3.12 yuan,6.15 yuan and 4.26 yuan respectively,with an increase ratio of 16.36％,32.25％and 22.34％respectively.To sum up,adding different levels of date residue to beef diet can effectively improve the antioxidant level,growth performance and economic benefits of beef cattle.In this experiment,adding 6％of dates to beef diet can bring the best economic benefits.
date dregsbeef cattleserum biochemical indicatorsgrowth performanceeconomic benefits
NETL
NSTL
万方数据
