Ala-Gln和MOS对断奶仔猪生长性能和腹泻率的影响

发布时间：2019-02-19 13:04

【摘要】：研究旨在探讨丙氨酰-谷氨酰胺(Alanyl-glutamine,Ala-Gln)和甘露寡糖(Mannan oligo-saccharides,MOS)对断奶仔猪生长性能和腹泻率的影响。试验选用162头胎次、体重相近[(5.5±0.5)kg]的21日龄断奶仔猪,按照完全随机区组原则分为9个处理,每个处理3个重复,每个重复6头仔猪。对照组饲喂基础饲粮,试验组饲粮为基础饲粮分别添加0.10%MOS、0.20%MOS、0.15%Ala-Gln、0.10%MOS+0.15%Ala-Gln、0.20%MOS+0.15%Ala-Gln、0.30%Ala-Gln、0.10%MOS+0.30%Ala-Gln、0.20%MOS+0.30%Ala-Gln,试验期为28 d。于试验第14 d、28 d清晨对仔猪进行空腹称重,并记录每个重复饲料消耗量,计算平均日采食量(ADFI)、平均日增重(ADG)、料重比(F/G)及腹泻率。结果显示:(1)0.20%MOS+0.30%Ala-Gln组可显著降低21~35日龄仔猪的F/G(P0.05);0.20%MOS+0.30%Ala-Gln组可显著提高36~49日龄仔猪的ADG(P0.05),并显著降低仔猪F/G(P0.05);0.10%MOS+0.15%Ala-Gln、0.20%MOS+0.30%Ala-Gln组显著提高了36~49日龄仔猪的ADFI(P0.05)。(2)除0.10%MOS组外,21~35日龄各试验组仔猪腹泻率均显著低于对照组(P0.05),但各试验组之间差异不显著(P0.05);在36~49日龄,0.20%MOS、0.15%Ala-Gln、0.10%MOS+0.30%Ala-Gln、0.20%MOS+0.30%Ala-Gln组仔猪腹泻率显著低于对照组(P0.05)。(3)饲粮中联合添加Ala-Gln和MOS对仔猪的日增重、平均日采食量及料重比均没有表现出明显的互作效应(P0.05),但对36~49日龄仔猪的腹泻率表现出明显的互作效应(P0.05)。综上所述,MOS和Ala-Gln对断奶仔猪的生长性能有一定的促进作用,对断奶仔猪腹泻有良好的抑制作用,其中以0.20%MOS+0.30%Ala-Gln组效果最佳。
[Abstract]:The aim of this study was to investigate the effects of alanyl-glutamine (Alanyl-glutamine,Ala-Gln) and mannose oligosaccharide (Mannan oligo-saccharides,MOS) on growth performance and diarrhea rate of weaned piglets. 21-day-old weaned piglets with similar body weight [(5.5 卤0.5) kg] were divided into 9 treatments according to the principle of complete random block, 3 replicates per treatment and 6 piglets per replica. The control group was fed with basic diet, and the experimental group was fed with 0.10 MOS0.20 and 0.15% Ala-Glnn 0.10 MOS 0.15 and Ala-Gln 0.15 MOS 0.15. Ala-Glnn 0.10 and MOS 0.30, and Ala-Glnn 0.20 and MOS 0.30 Ala-Gln for 28 days. The piglets were weighed on an empty stomach in the early morning of the 14th day, and the daily feed intake (ADFI), average daily gain (ADG), feed weight ratio (ADG), / G) and diarrhea rate were calculated. The results showed that: (1) 0.20%MOS 0.30%Ala-Gln group could significantly reduce the FRG of 21-35 day-old piglets (P0.05); 0.20%MOS 0.30%Ala-Gln group significantly increased the ADG (P0.05) of 360-49 day old piglets, and significantly decreased the F / G (P0.05) of piglets. 0.10%MOS 0.15 and Ala-Glnn 0.20 0.30%Ala-Gln significantly increased the ADFI (P0.05). (2) of 360-49 day-old piglets except 0.10%MOS group. The diarrhea rate of piglets in 21 ~ 35 days old group was significantly lower than that in the control group (P0.05), but there was no significant difference among the experimental groups (P0.05). At 360-49 days old, 0.20 lies 0.15 Ala-Glnn and 0.10 in MOS 0.30 Ala-Gln.MOS 0.30Ala-Gln. The diarrhea rate in 0.20%MOS 0.30%Ala-Gln group was significantly lower than that in control group (P0.05). (3), and the daily gain of piglets fed with Ala-Gln and MOS was significantly lower than that in control group (P0.05). (3). The average daily feed intake and feed weight ratio showed no significant interaction effect (P0.05), but the diarrhea rate of 3649 days old piglets showed obvious interaction effect (P0.05). To sum up, MOS and Ala-Gln can promote the growth performance of weaned piglets and inhibit diarrhea of weaned piglets, among which 0.20%MOS 0.30%Ala-Gln group has the best effect.
【作者单位】：江西农业大学江西省动物营养重点实验室江西省营养饲料开发工程中心;
【基金】：江西省科技落地计划项目[KJLD14027]
【分类号】：S828.5;S858.28

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