This research investigated the impact of dietary beta-glucan-rich molasses yeast powder (MYP) supplementation on the antibody response to swine fever virus (Titer) and hematology of starter–grower pig. Sixteen cross pigs (30 kg body weight) were equally split into four groups; each group with four replicates and fed four dietary treatments that consisted of basal diets (control) and the basal diets added with 2.5, 5.0, and 7.5% MYP. Feed and water were consumed ad libitum for 44 days. Feed intake (FI), MYP intake (MYPI), beta-glucan intake (BGI), and Mannan-oligosaccharide intake (MOSI) were recorded daily. Titer was evaluated after 15 (Titer15) and 30 (Titer30) days after vaccination, while hematology was analyzed at the end of the experiment. The results indicated that it was unchangeable for ADFI (P > 0.05). No impacts were observed on hematological variables and Titer15 in MYP fed pigs (P > 0.05). However, supplementation with 7.5% MYP increased platelet count (PC) and Titer30 (P < 0.01), but decreased hematocrit (Hct) (P < 0.05). Titer 30 and titer 15 were linked to MYPI, BGI, and MOSI (P < 0.05). Based on the study, feeding starter–grower pigs diets supplemented with 7.5% MYP might enhance the antibody response to swine fever virus 30 days after vaccination, and it has a potential role in the application in prevention of swine fever virus disease.

这项研究调查了日粮中富含β-葡聚糖的糖蜜酵母粉（MYP）对猪瘟病毒（滴度）的抗体反应和成年猪血液学的影响。将十六头杂交猪（体重30公斤）平均分为四组；每头猪的平均成群分为三组。每组重复四次，喂食四种饮食疗法，包括基础饮食（对照）和基础饮食，分别添加2.5％，5.0％和7.5％的MYP。随意摄入饲料和水44天。每天记录饲料摄入量（FI），MYP摄入量（MYPI），β-葡聚糖摄入量（BGI）和甘露寡糖摄入量（MOSI）。在接种疫苗后15（Titer15）和30（Titer30）天后评估滴度，同时在实验结束时分析血液学。结果表明，ADFI（P > 0.05）。在MYP饲喂的猪中，未观察到对血液学变量和Titer15的影响（P  > 0.05）。然而，补充7.5％MYP可增加血小板计数（PC）和Titer30（P  <0.01），但可降低血细胞比容（Hct）（P  <0.05）。效价30和效价15与MYPI，BGI和MOSI相关（P  <0.05）。根据这项研究，在饲喂添加了7.5％MYP的成年矮种猪日粮后，接种疫苗30天后可能会增强对猪瘟病毒的抗体反应，并且在预防猪瘟病毒疾病中具有潜在的作用。