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Effects of housing hygiene conditions on amino acid postprandial profiles in pigs selected for low and high residual feed intake

机译:壳体卫生条件对低剩余饲料摄入量选择猪氨基酸后曲线的影响

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Health challenge may affect the metabolism of nutrients. This study was performed to evaluate the effects of a systemic inflammation induced by poor housing conditions on postprandial profiles of plasma amino acids in pigs divergently selected for residual feed intake (RFI). The trial was based on a 2x2 factorial design (n=6/group) including low-RFI (LRFI) and high-RFI (HRFI) pigs housed in two hygiene conditions (Clean vs Dirty). After a 6-week challenge period, an intravenous catheter was insertedand blood samples were collected during a 4-hour period to measure plasma amino acid concentrations. Interaction between Line x Hygiene was significant (PO.05) for plasma lysine, tryptophan and argmine average concentrations. The LRFI pigs had higher (P<0.05) tryptophan and argfnine concentrations in Clean than in Dirty condition, while there was no difference between Hygiene conditions for HRFI pigs. The postprandial amino acids (AA) concentrations were differently affected by genetic selection. Further studies are needed to evaluate how immune stimulation may affect the AA metabolism of LRFT and HRFI pigs.
机译:健康挑战可能会影响营养成分的新陈代谢。进行该研究以评估差的住房条件不良诱导的全身炎症对猪的血浆氨基酸的后置曲线致多种饲料进料(RFI)的血浆氨基酸的曲线。该试验基于2×2因子设计(n = 6 /组),包括在两个卫生条件下容纳的低RFI(LRFI)和高RFI(HRFI)猪(清洁VS脏)。在6周的挑战期后,在4小时的时间内收集静脉内导管和血样,以测量血浆氨基酸浓度。线X卫生之间的相互作用对于等离子体赖氨酸,色氨酸和臂氏症平均浓度是显着的(PO.05)。 LRFI猪具有更高(P <0.05)色氨酸,干净的氨基浓度小于脏状况,而HRFI猪的卫生条件之间没有差异。餐后氨基酸(AA)浓度不同地受到遗传选择的影响。需要进一步的研究来评估免疫刺激如何影响LRFT和HRFI猪的AA代谢。

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