Effects of Different Bedridden Materials on Comfort,Reproduction and Health of Heifer
[Objective]To study the effects of different bedridden on comfort,reproduction and health of beef cattle.[Methods]600 heifers were randomly divided into 4 groups(150 cows in each group),which were ran-domly reared on concrete floor,brick floor,sawdust bedding and fine sand bed respectively,the results showed that the mold content of sand and brick floor was significantly lower than that of concrete floor and sawdust bedding(P＜0.05).The amount of Staphylococcus aureus in fine sand was significantly lower than that in concrete floor and sawdust bedding(p＜0.01),it was significantly lower than that of concrete floor,brick floor and sawdust bedding(p＜0.05).Fine sand and sawdust bedding significantly increased the lying rate of heifer(86％and 90％,P＜0.05),significantly higher than that of concrete floor and brick floor Using fine sand and sawdust bedding signifi-cantly reduced the incidence of foot and limb disease in heifer cows(14％and 5％,p＜0.05).Compared with concrete floor,brick floor and sawdust bedding,fine sand bedding significantly increased the conception rate and calf survival rate of heifer(92％,98％,p＜0.05).[Conclusion]Compared with concrete floor,brick floor and sawdust bedding,fine sand bedding significantly increased the lying rate,conception rate and calf survival rate of heifer heifer,and decreased the incidence of limb and hoof disease of heifer.
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