CAJ | 학술논문

本文旨在比较饲粮中添加纤维素酶和丙二醇对产后奶牛能量负平衡相关血清指标、尿液酮体浓度的影响。试验选择24头处于围产前期奶牛随机分成3组，对照组饲喂基础饲粮，另设置丙二醇组(基础饲粮+0.5%丙二醇制剂)和纤维素酶组(基础饲粮+0.1%纤维素酶制剂)，测定产后第1、20、40、60和100天奶牛能量负平衡相关血清指标、尿液酮体的浓度。结果表明：在产后第1天丙二醇组血清葡萄糖和胰岛素浓度显著高于其余2组( P<0.05)；在产后第1、20、40和60天，丙二醇组血清游离脂肪酸和尿液酮体浓度显著低于对照组(P<0.05)，第20天显著低于纤维素酶组( P<0.05)；甘油三酯等与肝脏脂肪代谢相关的血清指标试验组优于对照组，且以丙二醇组更好。综上，饲粮添加丙二醇及纤维素酶对奶牛产后能量负平衡有一定的改善作用，且以添加0.5%丙二醇制剂效果相对更好。
본문지재비교사량중첨가섬유소매화병이순대산후내우능량부평형상관혈청지표、뇨액동체농도적영향。시험선택24두처우위산전기내우수궤분성3조，대조조사위기출사량，령설치병이순조(기출사량+0.5%병이순제제)화섬유소매조(기출사량+0.1%섬유소매제제)，측정산후제1、20、40、60화100천내우능량부평형상관혈청지표、뇨액동체적농도。결과표명：재산후제1천병이순조혈청포도당화이도소농도현저고우기여2조( P<0.05)；재산후제1、20、40화60천，병이순조혈청유리지방산화뇨액동체농도현저저우대조조(P<0.05)，제20천현저저우섬유소매조( P<0.05)；감유삼지등여간장지방대사상관적혈청지표시험조우우대조조，차이병이순조경호。종상，사량첨가병이순급섬유소매대내우산후능량부평형유일정적개선작용，차이첨가0.5%병이순제제효과상대경호。
The objective of this study was to compare the effects of cellulase and propylene glycol on negative energy balance ( NEB) related serum indexes and urine ketone ( KET) concentration of postpartum dairy cows. Twenty four early perinatal dairy cows were randomly divided into 3 groups with 8 cows per group. Three groups were control group (basal diet), propylene glycol group (basal diet+0.5% propylene glycol prepara-tion) and cellulase group (basal diet+0.1% cellulose preparation). Serum indexes related to NEB and urine KET concentration were detected respectively on days 1, 20, 40, 60 and 100 after calving. The results showed as follows: on day 1 after calving, serum glucose and insulin concentrations of propylene glycol group were significantly higher than those of the other 2 groups ( P<0.05) . On days 1, 20, 40 and 60 after calving, serum non-esterified fatty acid and urine KET concentrations in propylene glycol group were significantly lower than those in control group (P<0.05), moreover, propylene glycol group was significantly lower than cellulase group on day 20 after calving ( P<0.05) . Serum indexes related to liver fat metabolism such as triglyceride in experimental groups were better compared to control group, and propylene glycol group showed optimum effect. Taken together, diets adding with cellulase and propylene glycol have certain improvements to NEB and the addition of 0. 5% propylene glycol preparation in diet showes better effects.