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Dietary fibre and weaning age affect stress and immune markers in saliva of sows and their offspring
Journal of Animal Science ( IF 2.7 ) Pub Date : 2024-10-12 , DOI: 10.1093/jas/skae312
Łukasz Grześkowiak, José Joaquín Cerón, Marina Lopez-Arjona, Beatriz Martínez-Vallespín, Johannes Schulze Holthausen, Philip Krüsselmann, Cornelia C Metges, Björn Kuhla, Wilfried Vahjen, Jürgen Zentek, Eva-Maria Saliu

Diet, especially the intake of dietary fibre, and weaning practices may influence pig wellbeing. This study assessed changes in salivary stress and immune markers in sows and their offspring fed either hay (HAY) or sugar beet pulp (SBP), either fine (F) or coarse (C), during gestation and lactation. The effect of weaning age (conventional-CW, late-LW) on these markers was also evaluated. Saliva was analysed for chromogranin A (CgA), cortisol, alpha-amylase, oxytocin, immunoglobulin A (IgA) and adenosine deaminase (ADA). CgA was higher at CW vs. LW in sows fed SBP-F (P=0.038). Alpha-amylase was higher in sows fed HAY-C at CW vs. LW (P=0.005) and in sows fed SBP-C at LW vs. CW (P=0.096). CgA and oxytocin were higher in sows fed SBP-F at CW vs. LW (P =0.038 and P =0.017, respectively). ADA was higher in sows fed SBP-C vs. HAY-C (P=0.035) at LW and at LW vs. CW in sows fed SBP-C (P=0.002). Piglet salivary CgA was higher at CW vs. LW in HAY-F (P=0.002) and SBP-F (P=0.031). Oxytocin was higher at CW vs. LW in piglets fed HAY-F (P=0.006). Piglet salivary IgA was higher in HAY-C vs. HAY-F at CW (P=0.010) and at LW vs. CW in piglets fed HAY-F (P=0.021). ADA was higher in piglets fed SBP-F vs. HAY-F (P=0.053) at CW and SBP-F vs. SBP-C (P=0.042) at LW. Dietary fibre type, weaning age and to a lesser extent grinding degree affect stress and immune markers in pigs. These findings highlight the impact of diet and weaning practice on pig welfare.

中文翻译:


膳食纤维和断奶日龄影响母猪及其后代唾液中的应激和免疫标志物



饮食,尤其是膳食纤维的摄入量和断奶做法可能会影响猪的健康状况。本研究评估了饲喂干草 (HAY) 或甜菜浆 (SBP),细 (F) 或粗 (C) 的母猪及其后代在妊娠和哺乳期间唾液应激和免疫标志物的变化。还评估了断奶日龄 (常规 CW、晚期 LW) 对这些标志物的影响。分析唾液中的嗜铬粒蛋白 A (CgA) 、皮质醇、α-淀粉酶、催产素、免疫球蛋白 A (IgA) 和腺苷脱氨酶 (ADA)。饲喂 SBP-F 的母猪 CW 组的 CgA 高于 LW 组 (P = 0.038)。CW 饲喂 HAY-C 的母猪与 LW 的母猪 (P=0.005) 和 SBP-C 的母猪 LW 比 CW 的母猪 α-淀粉酶 (P=0.096) 较高。CW 饲喂 SBP-F 的母猪的 CgA 和催产素高于 LW(分别为 P =0.038 和 P =0.017)。饲喂 SBP-C 的母猪 ADA 高于 HAY-C 的母猪 (P=0.035),饲喂 SBP-C 的母猪的 ADA 高于 HAY-C 的母猪 (P=0.035) (P=0.002)。CW 组仔猪唾液 CgA 在 HAY-F (P = 0.002) 和 SBP-F (P = 0.031) 中高于 LW。饲喂 HAY-F 的仔猪 CW 与 LW 的催产素水平较高 (P=0.006)。饲喂 HAY-F 的仔猪唾液 IgA 在 CW 时高于 HAY-F (P = 0.010),在 LW 与 CW 中,饲喂 HAY-F 的仔猪唾液 IgA 更高 (P = 0.021)。CW 时饲喂 SBP-F 与 HAY-F (P = 0.053) 和 LW 时 SBP-F 与 SBP-C (P = 0.042) 饲喂的仔猪的 ADA 较高。膳食纤维类型、断奶日龄和磨碎程度在较小程度上影响猪的应激和免疫标志物。这些发现突出了饮食和断奶实践对猪福利的影响。
更新日期:2024-10-12
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