A complete randomised block design experiment was conducted to examine the effects of mushroom powder (MP) and vitamin D₂-enriched mushroom powder (MPD₂) on growth performance, faecal scores, coefficient of apparent total tract digestibility (CATTD) of nutrients and selected microflora in weaned pigs up to day 35 post-weaning. One hundred and ninety-two weaned pigs (7.8kg [SD 1.08kg]) were blocked according to live weight, sex and litter of origin and randomly assigned to the following: (T1) control diet; (T2) control diet +MP; (T3) control diet + MPD₂; and (T4) control diet +zinc oxide (ZnO) (n = 12 replicates/treatment). Mushroom powders were included at 2 g/kg of feed achieving a β-glucan content of 200ppm. ZnO was included at 3100 mg/kg feed and halved to 1550 mg/kg after 21 days. Vitamin D content was enhanced in MPD₂ using synthetic UVB exposure to obtain a vitamin D₂ level of 100 µg/kg of feed. Faecal samples were collected on day 14 for microbial and nutrient digestibility analysis. There was no difference (p > 0.05) in ADG, G:F, faecal scores, microbial populations and CATTD of nutrients in pigs supplemented with MP or MPD₂ compared with the control diet. The supplementation of MP and MPD₂ caused a reduction (p < 0.05) in feed intake compared with the control and ZnO diet throughout the 35-day experimental period. ZnO supplementation increased ADG and ADFI (p < 0.05) during the first period (D0-21) compared with pigs offered MP and MPD₂. In conclusion, MP and MPD₂ supplementation resulted in similar ADG, G:F, faecal scores compared with the control but were not comparable to ZnO, mainly due to a reduction in feed intake.

中文翻译：

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香菇粉和富含维生素D2的香菇粉补充剂对新断奶仔猪生长性能和健康的影响

进行了一项完整的随机区组设计实验，以检查蘑菇粉 (MP) 和富含维生素 D ₂的蘑菇粉 (MPD ₂ ) 对生长性能、粪便评分、养分表观全道消化率 (CATTD) 的影响，并选择断奶后第 35 天断奶仔猪的微生物群落。192头断奶仔猪（7.8kg [SD 1.08kg]）根据活重、性别和产仔数进行封闭，随机分配到以下组：（T1）对照饮食；(T2)控制饮食+MP；(T3) 控制饮食 + MPD ₂; (T4) 对照饮食 + 氧化锌 (ZnO) (n = 12 次重复/处理)。蘑菇粉的含量为 2 g/kg 饲料，达到 200 ppm 的 β-葡聚糖含量。ZnO 的含量为 3100 mg/kg 饲料，并在 21 天后减半至 1550 mg/kg。使用合成 UVB 暴露可提高 MPD _{2中的维生素 D 含量，以获得 100 µg/kg 饲料的维生素 D 2}水平。在第 14 天收集粪便样本进行微生物和营养物质消化率分析。与对照日粮相比，添加 MP 或 MPD ₂ 的猪的 ADG、G:F、粪便评分、微生物种群和 CATTD均无差异（p > 0.05）。_{MP 和 MPD 2}的补充导致减少 ( p < 0.05) 在整个 35 天的实验期间，与对照和 ZnO 饮食相比，采食量有所增加。_{与提供 MP 和 MPD 2} 的猪相比，在第一阶段（D0-21）添加 ZnO 增加了 ADG 和 ADFI（p < 0.05） 。总之，与对照组相比，MP 和 MPD ₂补充剂导致相似的 ADG、G:F、粪便评分，但与 ZnO 不具有可比性，主要是由于采食量减少。