Ayala-Monter Marco A, Hernández-Sánchez David, González-Muñoz Sergio, Pinto-Ruiz René, Martínez-Aispuro José A, Torres-Salado Nicólas, Herrera-Pérez Jerónimo, Gloria-Trujillo Adrian
Program of Animal Science, Postgraduate College-Campus Montecillo, Texcoco, State of Mexico 56230, Mexico.
Faculty of Agricultural Sciences, Autonomous University of Chiapas, Chiapas 30470, Mexico.
Asian-Australas J Anim Sci. 2019 Aug;32(8):1137-1144. doi: 10.5713/ajas.18.0630. Epub 2019 Feb 7.
This experiment was designed to evaluate the effects of Agave tequilana inulin and Lactobacillus casei (L. casei) on growth performace, hematological variables, serum metabolites, and total coliforms in nursing lambs.
The experimental design was completely randomized; treatments were T1, control (pre-starter concentrate, PC), T2: T1+2% inulin, and T3: T1+2% inulin+L. casei; treatments were compared with Tukey test (p≤0.05); and 45 new born Kathadin×Dorset lambs (4.8±0.8 kg birth weight) were the experimental units (15 per treatment). The variables were daily weight gain (DWG), dry matter intake and diarrheas incidence (%) during 56 d. Twenty-four hours after birth and at the end of the experiment, blood samples were collected to evaluate hematological variables and serum metabolites. Besides, the populations of total coliforms and lactobacilli were estimated in fecal samples.
Addition of agave inulin and L. casei increased (p≤0.05) DWG 356, 384, and 415 g/d, weaning weight 24.92, 26.18, and 28.07 kg, as well as lactobacilli population 5.79, 6.32, and 6.48 Log10 cfu/g, for T1, T2, and T3, respectively. Lambs fed L. casei had decreased (p≤0.05) populations of total coliforms (T1 = 6.18, T2 = 5.77, and T3 = 5.07 Log10 cfu/g), diarrheas incidence (T1 = 11.67%, T2 = 8.33%, and T3 = 5.0%), and serum cholesterol concentration (11% in T2 and 13% in T3, compared to control).
The combination of Agave tequilana inulin and L. casei increases weight gain and improves intestinal health by reducing coliforms and diarrheas incidence in Katahdin× Dorset lambs during the pre-weaning period.
本实验旨在评估龙舌兰菊粉和干酪乳杆菌对哺乳羔羊生长性能、血液学指标、血清代谢物及总大肠菌群的影响。
实验设计为完全随机化；处理组分别为T1，对照组（预启始浓缩料，PC），T2：T1 + 2%菊粉，以及T3：T1 + 2%菊粉 + 干酪乳杆菌；处理组间采用Tukey检验进行比较（p≤0.05）；45只新生的卡他丁×多塞特羔羊（出生体重4.8±0.8 kg）作为实验单元（每组15只）。变量包括56天内的日增重（DWG）、干物质摄入量及腹泻发生率（%）。出生后24小时及实验结束时采集血样，以评估血液学指标和血清代谢物。此外，还对粪便样本中的总大肠菌群和乳酸杆菌数量进行了估算。
添加龙舌兰菊粉和干酪乳杆菌使T1、T2和T3组的日增重分别提高（p≤0.05）至356、384和415 g/d，断奶体重分别提高至24.92、26.18和28.07 kg，乳酸杆菌数量分别为5.79、6.32和6.48 Log10 cfu/g。饲喂干酪乳杆菌的羔羊总大肠菌群数量减少（p≤0.05）（T1 = 6.18，T2 = 5.77，T3 = 5.07 Log10 cfu/g），腹泻发生率降低（T1 = 11.67%，T2 = 8.33%，T3 = 5.0%），血清胆固醇浓度降低（与对照组相比，T2降低11%，T3降低13%）。
龙舌兰菊粉和干酪乳杆菌的组合可增加断奶前卡他丁×多塞特羔羊的体重，并通过减少大肠菌群数量和腹泻发生率来改善肠道健康。
