日粮不同NFC/RDP水平对围产期奶牛血液NEFA、BHBA、ALB和TP浓度的影响  

Effect of Different NFC/RDP Level on Serum Concentrations of NEFA, BHBA, ALB and TP in Peripartum Cows

作　　者：赵永生[1] 侯先志[1] 王海荣[1] 考桂兰[1] 杨帆[1] 

机构地区：[1]内蒙古农业大学动物科学与医学学院,呼和浩特010018

出　　处：《中国奶牛》2009年第10期12-15,共4页China Dairy Cattle

基　　金：国家科技支撑计划农业领域课题(2006BAD04A03-02-03)

摘　　要：本文旨在研究围产前期日粮不同NFC/RDP水平对奶牛血液NEFA、BHBA、ALB和TP浓度的影响。选择2～5胎、产奶量、体重和体况评分值相近的围产期荷斯坦牛48头,随机分为六组,每组8头,于产前第28天开始,各组分别饲喂NFC/RDP为5.14(Ⅰ)、3.46(Ⅱ)、4.00(Ⅲ)、5.12(Ⅳ)、3.35(Ⅴ)、2.87(Ⅵ)的日粮。分娩后各组均饲喂相同的产奶日粮,至产后第7天结束。结果表明,产后第7天,Ⅲ组血清NEFA浓度显著低于Ⅵ组(P<0.05),低于其余四组,但差异不显著(P>0.05);产后第1天,Ⅲ组血清BHBA水平显著低于Ⅵ组(P<0.05),低于其余四组,但差异不显著(P>0.05);从产前第14天到产后第7天,Ⅲ组血清ALB浓度均高于其余五组,但差异不显著(P>0.05);产后第7天,Ⅲ组TP浓度显著高于Ⅰ组和Ⅳ组(P<0.05),高于Ⅱ组、Ⅴ组和Ⅵ组,但差异不显著(P>0.05)。在本试验条件下,NFC/RDP为4.00(Ⅲ)的日粮饲喂效果最佳。The research was conducted to investigate the effect of different level of NFC/RDP during the prepartum period on serum concentrations of NEFA, BHBA, ALB and TP in transition Holstein Cows. Forty-eight transition Holstein cows were randomly allocated into six groups according to the parity,milk production,body weight and body condition score. The NFC/RDP level was 5.14（Ⅰ ）,3.46（ Ⅱ ）,4.00 （ Ⅲ ）,5.12 （Ⅳ）,3.35 （ Ⅴ ）and 2.87 （Ⅵ）, respectively, from the day 28 prior parturtum to calving. After calving, all the cows were offered the same lactation ration to the day 7 postpartum. The result showed that： the concentration of serum non-esterified fatty acids（NEFA） of cows in Ⅲ group was evidently lower than that of Ⅵ group（P〈0.05）, lower than that of other four groups（P〉0.05）at the seventh day ＇after calving; the concentration of serum β-hydroxybutyric acid（BHBA）of cows in m group was evidently lower than that of Ⅵ group（P〈0.05）, lower than that of other four groups（P〉0.05）at the first day after calving; the concentration of serum albumin（ALB） of cows in Ⅲ group was higher than that of other five groups（P〉0.05）from the day 14 prepartum to the day 7 postpartum; the concentration of serum total protein（TP） of cows in Ⅲ group was evidently higher than that of Ⅰ and Ⅳ groups（P〈0.05）, higher than that of Ⅱ ,Vand Ⅵ groups（P〉0.05）at the seventh day after calving, Analysis indicated that In group with the NFC/RDP level was 4.00 was the best among the six diets.

关 键 词：围产期奶牛 NFC/RDP 非酯化脂肪酸 Β-羟丁酸 白蛋白 总蛋白 

分 类 号：S823[农业科学—畜牧学]