19 Dietary Supplementation of Botanicals Enhanced Growth Performance and Disease Resistance of Weaned Pigs Experimentally Infected with a Pathogenic E. coli. (7th May 2021)

• Record Type: Journal Article
• Authors: Wong, Braden T; He, Yijie; Kim, Kwangwook; Xu, Sharon; Lingga, Christopher; Li, Xunde; Wall, Emma; Liu, Yanhong
• Is Part Of: Journal of animal science. Volume 99(2021)Supplement 1
• Page Start: 29
• Page End: 29
• Publication Date: 2021-05-07
• Subjects: botanicals -- Escherichia coli infection -- weaned pigs; Livestock -- Periodicals; Livestock; Electronic journals; Periodicals; 636.005
• DOI: 10.1093/jas/skab054.050
• Languages: English
• ISSNs: 0021-8812

Abstract

Abstract: The objective of this study was to investigate the effects of dietary botanical supplementation on growth performance and frequency of diarrhea of weaned piglets experimentally infected with a pathogenic F18 Escherichia coli (E. coli). Sixty weaned piglets (around 21 days old; 7.15 ± 0.97 kg) were individually housed and randomly allotted to one of five dietary treatments (n = 12): negative control (NC), positive control (PC), high dose of botanicals blend 1 (BB1, 100 ppm), low dose of botanicals blend 2 (BB2, 50 ppm), and high dose of botanicals blend 2 (BB2, 100 ppm). The experiment lasted 28 days: from day -7 to +21 relative to E. coli inoculation. All piglets except the pigs in the NC group were orally inoculated with F18 E. coli (10 10 cfu per dose, 3 doses) for 3 consecutive days. Growth performance was recorded throughout the experiment and diarrhea scores were recorded daily. Data were analyzed by ANOVA using PROC MIXED of SAS with a randomized complete block design. E. coli challenge reduced (P < 0.05) pig body weight and growth rate throughout the experiment. Pigs supplemented with high dose BB1 or BB2 tended (P < 0.10) to have greater body weight (19.52 and 19.10 vs. 18.00 kg) on d 21 PI and greater average daily gain from d 0 to 21 PI (554 and 557 vs. 515 g/d) than PC. No differences were observed in pig performance between high dose BB1 or BB2 in comparison with NC. Supplementation of high dose BB1 or BB2 also reduced (P < 0.05) frequency and severity of diarrhea of challenged pigs during the entire experimental period. In conclusion, dietary supplementation of botanicals reduced diarrhea and tended to improve growth performance of weaned pigs infected with E. coli.