Effects of different ratios of whole-plant Zhangzagu silage on growth performance,serum biochemical,antioxidant,and immune indicators of beef cattle during finishing period
ZHANG Wen-yu
FU Le
SONG Lian-jie
CHEN Jun-wei
LI Zhuo
ZHANG Zi-xuan
YANG Qun-hui
FENG Man
Abstract：The experiment aimed to study the effects of different proportions of whole-plant Zhangzagu silage on the growth performance,serum biochemical,antioxidant,and immune indicators of finishing beef cattle.A total of 40 healthy Simmental beef cattle with similar ages and a body weight of about 450 kg were randomly divided into four groups,with 10 replicates per group and one cattle per replicate.The control group was fed a basal diet,while the 10％replacement group,20％replacement group,and 30％replacement group used 10％,20％,and 30％of the whole-plant Zhangzagu silage to replace corn silage.The preliminary trial period was 15 days,and the formal experimental period was 150 days.The results showed that compared with the control group,the average daily weight gain of beef cattle in the 20％replacement group was significantly increased(P＜0.05),and the feed conversion ratio was significantly decreased(P＜0.05),the apparent digestibility of crude fat(EE)and calcium(Ca)were significantly increased(P＜0.05),and the apparent digestibility of crude protein(CP)and phosphorus(P)were higher than that of other groups(P＞0.05).The content of serum urea nitrogen(BUN)in the serum of beef cattle in the 20％and 30％replacement groups was extremely lower than that in the control group(P＜0.01),and the content of malondialdehyde(MDA)was significantly lower than that in the control group(P＜0.05).The study suggests that replacing 20％of the corn silage in the diet with whole-plant Zhangzagu silage can improve the growth performance and antioxidant capacity of beef cattle,as well as improve the serum biochemical indicators and immune performance of beef cattle.
Keywords：Zhangqinggu silagebeef cattlegrowth performanceserum biochemical indicatorsantioxidant functionimmune indicators
Publication Date：2024-10-16
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 7-11 )