Effects of Feeding Corn Naturally Contaminated with Aflatoxin on Growth Performance, Apparent Ileal Digestibility, Serum Hormones Levels and Gene Expression of Na, K-ATPase in Ducklings

Overview

Journal Asian-Australas J Anim Sci

Specialty Veterinary Medicine

Date 2017 Aug 22

PMID 28823127

Citations 6

Authors

Farzana Abbasi

Jingbo Liu

Hongfu Zhang

Xiaoyun Shen

Xuegang Luo

Affiliations

Soon will be listed here.

Abstract

Objective: A 14-d trial was conducted to determine the effects of feeding corn naturally contaminated with aflatoxin B (AFB) on growth performance, apparent ileal digestibility, serum hormones levels and gene expression of Na, K-ATPase in ducklings.

Methods: A total of 704 ducklings were blocked on the basis of sex and body weight (BW), and then allocated randomly to one of the following two treatments: i) CON, basal diet and ii) AFB, diets with 100% of normal corn replaced with AFB contaminated corn. There were 22 pens per treatment and 16 birds per pen. The concentration of AFB was 195.4 and 124.35 μg/kg in the contaminated corn and AFB diet, respectively.

Results: The AFB decreased average daily gain, average daily feed intake, d 7 BW, final BW in the whole trial, and feed conversion ratio (FCR) during d 8 to 14 and d 1 to 14 by 10% to 47% (p<0.05), while FCR during d 1 to 7 was increased (p<0.05). AFB did not affect mortality to 7 d of age, and then increased to 5.8% from 8 to 14 d of age (p<0.01). Apparent ileal gross energy digestibility was reduced by AFB, whereas apparent ileal digestibility of dry matter, nitrogen, and amino acid was improved (p<0.01). Feeding AFB diets increased serum concentration of leptin and insulin-like growth factors-1 (IGF-1) (p<0.05), but had no effect on neuropeptide Y, ghrelin, cholecystokinin-8 or insulin (p>0.05). Dietary treatments did not influence relative expression of jejunal Na, K-ATPase gene (p>0.05).

Conclusion: Taken together, feeding corn naturally contaminated with AFB reduced growth performance, improved apparent ileal digestibility, and affected serum leptin and IGF-1 in ducklings from d 1 to 14.

Citing Articles

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