Buffered formic acid and a monoglyceride blend coordinately alleviate subclinical necrotic enteritis impact in broiler chickens

• DOI: 10.1016/j.psj.2021.101214
• Publication Date: 2021-04-24T14:58:42Z
• Authors: Kosar Gharib-Naseri; Sarbast K. Kheravii; Lily Li; Shu-Biao Wu
• Keywords: Starter; Clostridium perfringens; Subclinical infection

The objective of this study was to evaluate the effect 2 different doses a partially buffered formic acid product (Amasil NA; 61% acid, 20.5% sodium formate), and monoglyceride blend short- medium-chain fatty acids (BalanGut LS P) on necrotic enteritis (NE) infected broilers in terms performance, intestinal microbial population short-chain concentrations gastrointestinal tract. A total 528-day-old as hatched Ross 308 were allocated 48 pens with 11 birds each pen. Six dietary treatments applied were: T1) nonsupplemented diet (Control); T2) antibiotic supplemented diets; T3) T4) high (Starter: 0.5%; Grower Finisher: 0.5%) low 0.3%; 0.2%) dose Amasil groups T5) T6) Grower: 0.15%; 0.075%) P). All fed starter (d 0-10), grower 11–24) finisher 25–35) diets challenged NE. To induce subclinical NE, oral administrations Eimeria oocysts 9) followed by inoculation Clostridium perfringens strains 14 15) applied. Results showed that NA, had higher feed conversion ratio (FCR, P < 0.05) compared group during period. Antibiotic supplementation reduced FCR (P 0.001), overall 0.001) periods experiment. Both levels BalanGut NA enhanced group. Compared group, improved stage 0.05). On d 16, cecum digesta significantly lower number C. level Bacillus 0.01) Ruminococcus numbers diets. High highest propionate concentration 0.001). suggests at feeding phases may achieve optimal performance improvement under NE challenge.