丙二醇对围产期奶牛能量平衡及代谢产物的影响

畜牧兽医学报 ›› 2012, Vol. 43 ›› Issue (3): 388-396.

丙二醇对围产期奶牛能量平衡及代谢产物的影响

刘强1，王聪1，张延利1，张拴林1，裴彩霞1，李新1，石彩叶1，白元生2，师周戈2

1. 山西农业大学动物科技学院，太谷 030801；2.山西省生态畜牧产业管理站，太原 030001

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-03-28 发布日期:2012-03-28
通讯作者: 刘强

Effects of Propylene Glycol on Energy Balance, Blood Parameter, Concentration of Glucose and Adipose in the Liver during Peripartum Period in Dairy Cows

LIU Qiang1, WANG Cong1, ZHANG Yanli1, ZHANG Shuanlin1, PEI Caixia1, LI Xin1, SHI Caiye1， BAI Yuansheng2, SHI Zhouge2

1. College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China; 2. Shanxi Province Ecology and Livestock Industry Management Station, Taiyuan 030001, China

Received:1900-01-01 Revised:1900-01-01 Online:2012-03-28 Published:2012-03-28
Contact: LIU Qiang1

摘要/Abstract

摘要： 为了研究丙二醇对围产期奶牛能量平衡、血液指标和肝脏甘油三酯与糖原含量的影响。选用24头体质量（683.1±14.9）kg、胎次（2.5±0.2）、上一泌乳期305 d产奶量（7 339±18）kg和预产期（24.5±0.2）d的经产奶牛，随机分为4组，从分娩前19 d开始分别在基础日粮中添加丙二醇0、150、300和450 mL·d-1。结果表明：与对照组相比，添加丙二醇300和450 mL·d-1，显著提高了奶牛分娩后7、21和35 d体况评分，缓减了奶牛体质量下降程度，改善了奶牛分娩前14 d和分娩后7、21和35 d奶牛能量平衡（P<0.05）。300和450 mL·d-1组奶牛分娩前14 d和分娩后7、21和35 d血糖和胰岛素浓度显著高于对照组（P<0.05）。300和450 mL·d-1组奶牛分娩后7、21和35 d血浆游离脂肪酸、β羟丁酸和甘油三酯浓度显著低于对照组（P < 0.05）。300和450 mL·d-1组奶牛分娩后7、21和35 d肝脏甘油三酯含量显著低于对照组（P<0.05），但分娩后7、21和35 d肝脏糖原含量显著高于对照组（P<0.05）。结果提示在日粮中添加丙二醇能够减少肝脏脂肪沉积，加强葡萄糖异生作用，改善奶牛能量平衡，适宜添加量为300 mL·d-1。

关键词: 丙二醇, 能量平衡, 围产期, 荷斯坦奶牛

Abstract: The objective of this study was to observe the effects of propylene glycol on energy balance, blood parameter, concentration of glucose and adipose in the liver during peripartum period in dairy cows. Multiparous Holstein dairy cows with similar body weight ((683.1±14.9)kg), lactation number (2.5±0.2), corrected milk yield in last lactation ((7 339±18)kg) and expected calving date ((24.5±0.2)d ) were allocated into four treatments at random. Graded levels (0, 150, 300 and 450 mL·d-1) of propylene glycol were supplemented in the four treatments from day 19 prepartum. The results showed that body condition score at 7, 21 and 35 d postpartum increased, body weight loss from 7 to 35 d postpartum reduced, energy balance at 14 d prepartum and 7, 21 and 35 d postpartum was improved significantly by the 300 and 450 mL·d-1 treatment compared with 0 mL·d-1 treatment (P<0.05). Cows receiving 300 and 450 mL·d-1 propylene glycol had a higher plasma glucose and insulin at 14 d prepartum and 7, 21 and 35 d postpartum, lower plasma NEFA, βhydroxybutyrate and triacylglycerol at 7, 21 and 35 d postpartum than that of 0 mL·d-1 treatment (P<0.05). 300 and 450 mL·d-1 propylene glycol supplementation decreased the contents of triacylglycerol in the liver and increased the contents of glycogen in the liver compared to 0 mL·d-1 propylene glycol treatment (P<0.05). The results indicated that propylene glycol supplementation was beneficial to peripartum cows in reducing the lipolysis, enhancing the gluconeogenesis and improving energy balance status, the optimum dose was about 300 mL·d-1.

Key words: propylene glycol, energy balance, peripartum period, Holstein dairy cows

刘强;王聪;张延利;张拴林;裴彩霞;李新;石彩叶;白元生;师周戈. 丙二醇对围产期奶牛能量平衡及代谢产物的影响[J]. 畜牧兽医学报, 2012, 43(3): 388-396.

LIU Qiang;WANG Cong;ZHANG Yanli;ZHANG Shuanlin;PEI Caixia;LI Xin;SHI Caiye;BAI Yuansheng;SHI Zhouge. Effects of Propylene Glycol on Energy Balance, Blood Parameter, Concentration of Glucose and Adipose in the Liver during Peripartum Period in Dairy Cows [J]. ACTA VETERINARIA ET ZOOTECHNICA SINICA, 2012, 43(3): 388-396.

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