He Long, Zang Jianjun, Liu Ping, Fan Peixin, Song Peixia, Chen Jingshu, Ma Yongxi, Ding Wei, Ma Xi
State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Centre, China Agricultural University, Beijing 100193. China.
Department of Geriatrics, Shanghai General Hospital, Medical College, Shanghai Jiaotong University, NO 100. Haining Road, Shanghai, 200080. China.
Protein Pept Lett. 2017;24(5):449-455. doi: 10.2174/0929866524666170223144728.
This study was conducted to evaluate the effect of flavors on reproductive performance of sows and we also studied its effect on gut barrier function. Forty-eight Landrace × Yarkshire sows were randomly allotted and fed a basal diet added 0%, 0.05% or 0.10% flavor feed, respectively from parturition to day 28 of weaning. The results showed that supplementation of 0.05% or 0.10% flavors increased average daily feed intake (ADFI) of sows and average daily gain (ADG) of piglets, decreased the weight losses of sows, increased the survival ratio of weaning piglets (P < 0.05), especially shorten the post-weaning estrus interval significantly (P < 0.05). Supplementation of flavor additives tend to reduce the weight losses of sows and raise the survival ratio of piglet weaned (P > 0.05). Moreover, addition of flavors in diets reduced the intestinal permeability and enhanced digestibility of dry matter, crude protein, and energy (P < 0.05). Flavors supplementation significantly increased the level of gonadotropin releasing hormne (GnRH) of serum in sows after weaning. In conclusion, the results suggested that supplementation of dietary flavors could improve digestibility of nutrients and the reproductive performance of sows as well as the gut barrier function.
本研究旨在评估风味剂对母猪繁殖性能的影响，同时我们也研究了其对肠道屏障功能的影响。48头长白×大白母猪被随机分配，从分娩至断奶第28天分别饲喂添加0%、0.05%或0.10%风味剂的基础日粮。结果表明，添加0.05%或0.10%风味剂可提高母猪的平均日采食量（ADFI）和仔猪的平均日增重（ADG），减少母猪体重损失，提高断奶仔猪成活率（P<0.05），尤其显著缩短断奶后发情间隔（P<0.05）。添加风味剂倾向于减少母猪体重损失并提高断奶仔猪成活率（P>0.05）。此外，日粮中添加风味剂可降低肠道通透性，提高干物质、粗蛋白和能量的消化率（P<0.05）。添加风味剂显著提高了断奶后母猪血清促性腺激素释放激素（GnRH）水平。总之，结果表明日粮中添加风味剂可提高营养物质消化率、母猪繁殖性能以及肠道屏障功能。
