Sugar Supplementation Stimulates Growth Performance in Calves with Growth Retardation
Sugar Supplementation Stimulates Growth Performance in Calves with Growth Retardation
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DOI：
10.1292/jvms.09-0180
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发表时间：
2010-01-01
影响因子：
1.2
通讯作者：
Kamimura, Shunichi
中科院分区：
文献类型：
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作者：
Sato, Tomohiro;Hidaka, Yuichi;Kamimura, Shunichi
对49头生长迟缓犊牛进行了补糖效果的测定。小牛每周2次补充糖，剂量为1 g/kg BW，持续8周。实验前的葡萄糖耐量试验显示，生长迟缓小牛和正常生长对照之间无差异。补糖后，将小牛分为4组，其特征在于日增重（DG）的高（H）或低（L）周期性变化，三个时期的断点为0.8 kg/d，即出生至补糖前（Pre-Pre）、补糖期间的8周（Pre-Post）和喂养后至交付上市（Post-Market）。两组在补充前后和上市后的周期性DG与补充前相比，在补充前-上市前期间，（L-H-H为0.93和1.11 vs 0.51 kg/天[n=19]，L-L-H为0.66和1.19 vs 0.42 kg/天[n=24]），而L-H-L（n=3）和L-L-L（n=3）无明显差异。在补充前一天（前）、补充后8周（后）和停止补充后8周收集外周血。L-H-H组和L-L-H组胰岛素样生长因子-1（IGF-1）和血糖浓度均显著升高，而L-H-H组和L-L-L组非酯化脂肪酸浓度均显著降低（P
The growth effect Of Sugar Supplementation was determined in 49 retarded growth calves. Calves were Supplemented with sugar at 1 g/kg BW 2 times weekly for 8 weeks. Glucose tolerance tests prior to the experiment showed no difference between the retarded growth calves and normal growth controls. After Sugar Supplementation, the calves were classified into 4 groups characterized by high (H) or low (L) periodic changes in daily weight gain (DG) with a breakpoint of 0.8 kg/d in three periods, birth to sugar supplementation (Birth-Pre), the 8 weeks during Supplementation (Pre-Post) and after feeding to delivery to market (Post-Market). The periodic DG showed a marked increase after supplementation in Pre-Post and Post-Market compared with before Supplementation during Birth-Pre in 2 groups (0.93 and 1.11 vs. 0.51 kg/day For L-H-H [n=19], 0.66 and 1.19 vs. 0.42 kg/day for L-L-H [n=24]), but no difference was observed in L-H-L (n=3) and L-L-L (n=3). Peripheral blood was collected oil the day before Supplementation (Pre), 8 weeks after Supplementation (Post) and eight weeks after cease Of Supplementation. The blood concentrations of both insulin-like growth factor-1 (IGF-1) and glucose showed significant increases in L-H-H and L-L-H, but decreases in non-esterified fatty acid were observed in L-H-H and L-L-L on day Post compared with day Pre, respectively (p