Effects of β-glucan and vitamin E diet supplementation on the physiological response, litter performance, blood profiles, immune response, and milk composition of lactating sows.

Abstract

This study was conducted to evaluate the effects of β-glucan and vitamin E diet supplementation on the physiological response, litter performance, blood profiles, immune response, and milk composition of lactating sows. A total of 50 multiparous F1 sows (Yorkshire × Landrace) with an average body weight (BW) of 233.6 ± 4.30 kg and an average parity of 4.00 ± 0.307 and their litters were used in this experiment. All sows were allotted one of five treatments, taking into consideration BW, backfat thickness, and parity in a completely randomized design with 10 replicates. The experimental diets included a corn-soybean meal-based basal diet with or without 0.1% or 0.2% β-glucan and 110 IU vitamin E/kg diet. All treatments added with β-glucan or vitamin E were statistically higher in the average daily feed intake (ADFI) measurement of lactating sows compared to those of the control (Diet, p<0.01). Additionally, the ADFI of lactating sows was significantly higher in the groups supplemented with 0.1% β-glucan compared to 0.2% β-glucan (BG, p<0.01). There was an increasing trend in piglet weight at weaning (BG, p=0.07), litter weight at the 21st day of lactation (BG, p=0.07) and litter weight gain (BG, p=0.08) in groups supplemented with 0.1% β-glucan. The addition of 110 IU vitamin E/kg diet increased vitamin E concentration significantly in lactating sows (VE, p<0.01) and exhibited a trend for higher concentrations of vitamin E (VE, p=0.09) in piglets. Adding 0.1% β-glucan compared to 0.2% β-glucan induced a decrease in the concentration of TNF-α in lactating sows (BG, p=0.06) and in piglets (BG, p=0.09) on the 21st day of lactation. There were no significant differences in the milk composition of sows. Adding 0.1% β-glucan and 110 IU vitamin E/kg to a lactating sow's diet was beneficial to the growth performance of piglets by leading to an increase in the feed intake of sows and efficiently supplying vitamin E to both the sows and piglets.