不同精粗比日粮对围产期奶牛健康状况的影响

Abstract

Abstract: The experiment was carried out to investigate the effect of different forage to concentrate diets on cow’s health. Ten Chinese Holstein cows with same expected calving date, similar body weight and body condition score were randomly assigned into two treatments,low quality forage (corn straw) and high concentrate diet(the proportion of F and C was 4:6), and high quality mixed forage (Chinese wildrye, alfalfa hay and corn silage) and low concentrate diet(the proportion of F and C was 6:4). Compared with MF treatment, cow feed CS diet increased dry matter intake (DMI) in prepartum and postpartum period, and the increase extent of DMI in CS treatment was faster than cow in MF treatment. Meanwhile, urine pH was higher in MF treatment than CS treatment (P<0.01), but there was no difference in blood pH between two treatments(P<0.05). Furthermore, MF diets tended to increase disease occur rate after calving. These results indicated that low quality forage and high lever of concentrate diet tended to exhibit positive effects on postpartum cow’s health.

Key words: perinatal period; DMI; postpartum disease; dairy cow

CLC Number:

S816.7

JIANG Shi-kai, SUN Peng, BU Deng-pan, ZHAO Xiao-wei, ZHANG Peng, WANG Lin-feng. Effect of Different Forage to Concentrate Ratio Diets on Health of Dairy Cows in Perinatal Period[J]. , 2013, 40(1): 183-186.

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Effect of Different Forage to Concentrate Ratio Diets on Health of Dairy Cows in Perinatal Period

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