LIU Ming 1 , YANG Feng-juan 1* , FENG Zhan-yu 1 ,TAN Li-wei 2 , SUN Min 1 , DAI Gang 1 ,
DONG Yan-jun 1 , QIAO Shi-yan 3
(1. Beijing China Agri Hong Ke Biotechnology Co., Ltd, Beijing 102206, China a; 2. Chinese Academy of Agricultural
Engineering, Beijing 100026, China; 3. China Agricultural University, Beijing 100193, China)
Abstract: The present study was conducted to investigate the effects of replacement of dietary spray dried plasma protein(SDPP) with beer yeast extract (YE) in weaned piglets. A total of 108 Duroc × Landrace × Large White weaned pigs withaverage initial weight of 7.39 ± 0.50 kg were randomly allocated to 1 of 3 diets (a control diet, a diet containing 3% spraydried plasma protein (3% SDPP) and a diet containing 1.5% SDPP and 1.5% YE (1.5% SDPP + 1.5% YE)) with 6 pensper treatment and 6 pigs per pen. The trail lasted for 28 d. The result showed that comparing with the control diet, dietscontaining 3% SDPP or 1.5% SDPP + 1.5% YE significantly increased the average daily gain during 15~28 d (P < 0.05)and improved feed efficiency during both 15~28 d and 1~28 d (P < 0.05); at the same time, significantly decreased thediarrhea incidences of piglets (P < 0.05). Moreover, compared with control piglets, piglets in both the 3% SDPP groupand the 1.5% SDPP + 1.5% YE group had higher villus height (P < 0.05) and lower crypt depth of duodenum and jejunum(P < 0.05); and the villus height/crypt depth of duodenum, jejunum and ileum were significantly increased (P < 0.05).In conclusion, our results indicated that equivalent replacement of dietary SDPP with 1.5% YE did not affect the growthperformance, diarrhea incidence and intestinal morphology; in addition, diets containing 3% SDPP or 1.5% SDPP + 1.5%.
YE could improve the growth performance, diarrhea incidence and intestinal morphology comparing to the control diet.
Key words: Yeast extract; Spray dried plasma protein; Piglet; Growth performance; Diarrhea incidence; Medication rate;
Intestinal morphology
From：Chinese Journal of Animal Science, 2017,53(02),116-121
DOI:10.19556/j.0258-7033.2017-02-116
