Carroll J A, Schmidt T B, Callaway T R, Wilson J G, Donaldson J R
Livestock Issues Research Unit, U. S. Department of Agriculture, Agriculture Research Service, Lubbock, TX 79403.
Animal Science Department, University of Nebraska, Lincoln, 68583.
Transl Anim Sci. 2017 Apr 1;1(2):201-207. doi: 10.2527/tas2017.0023. eCollection 2017 Apr.
Weanling pigs are at risk of succumbing to illness due to an immature immune system and insufficient supply of available energy at the time of weaning. This study was aimed at determining whether oleaginous bacteria could serve as a source of lipids to weanling pigs. Weanling pigs were provided a daily dose of 1×10 colony fomring unit (CFU) = kg of the novel oleaginous strain JD6301 or JD8715 (which is a variant form of JD6301 capable of producing extracellular triglycerides) via oral gavage for 5 d. Serum was collected every 6 h and intestinal samples were collected at 6 d. Providing pigs with JD6301 or JD8715 significantly increased serum concentrations of triglycerides and non-esterified fatty acids (NEFA) within 72 h. Additionally, the JD6301 and JD8715 strains were able to survive within the gastrointestinal tract throughout the duration of the study. These results suggest that providing can increase the serum lipids in the pigs, thus potentially providing an additional source of energy to animals during times of stress. This could potentially help improve the metabolic response of animals during times of stress.
断奶仔猪由于免疫系统不成熟以及断奶时可用能量供应不足，面临患病风险。本研究旨在确定产油细菌是否可作为断奶仔猪的脂质来源。通过口服灌胃，每天给断奶仔猪投喂1×10菌落形成单位（CFU）/千克的新型产油菌株JD6301或JD8715（JD8715是能够产生细胞外甘油三酯的JD6301变体形式），持续5天。每6小时采集一次血清，在第6天采集肠道样本。给仔猪投喂JD6301或JD8715在72小时内显著提高了血清甘油三酯和非酯化脂肪酸（NEFA）的浓度。此外，在整个研究期间，JD6301和JD8715菌株能够在胃肠道内存活。这些结果表明，投喂[此处原文有误，应是上述菌株]可提高猪的血清脂质，从而有可能在应激期间为动物提供额外的能量来源。这可能有助于改善动物在应激期间的代谢反应。
