Combined effect of probiotics and specific immunoglobulin Y directed against Escherichia coli on growth performance, diarrhea incidence, and immune system in calves

Karamzadeh-Dehaghani, A; Towhidi, A; Zhandi, M; Mojgani, N; Fouladi-Nashta, A

Abstract

Enterotoxigenic Escherichia coli (ETEC) K99 is one of the major pathogens associated with calf diarrhea. The induction of passive immunity in animals by immunoglobulin Y and using probiotics are inexpensive alternatives to antibiotics for the prevention and treatment of a number of bacterial infections, including diarrhea. Hence, the aim of this research was to evaluate the impact of dietary probiotics and ETEC K99-specific egg yolk antibody supplements, alone and in combination with each other, on health and growth parameters, diarrhea incidence and immune stimulation in newborn Holstein calves. One hundred and twenty neonatal calves were allocated randomly into 4 dietary groups (n = 30 per group) received colostrum/milk without any additives (control group), or supplemented with egg yolk powder contained E. coli K99-specific antibody (Ab group; 1 g/day), a commercial probiotic, Hypro-calves (Pro group; 3 g/day), and theircombi nation (Ab + Pro group), from day (d) 1 to d28 of age. Analyses of the growth parameters, feed efficiency, fecal score, and microbiota and immune function were carried out on dO, 14, 21, and 28 of the experiment. Calves in Ab or Ab + Pro group had higher (P

Citation

Karamzadeh-Dehaghani, A., Towhidi, A., Zhandi, M., Mojgani, N., & Fouladi-Nashta, A. (2021). Combined effect of probiotics and specific immunoglobulin Y directed against Escherichia coli on growth performance, diarrhea incidence, and immune system in calves. animal, 15(2), https://doi.org/10.1016/j.animal.2020.100124

• Journal Article Type: Article
• Acceptance Date: Oct 26, 2020
• Publication Date: 2021
• Deposit Date: Dec 13, 2021
• Publicly Available Date: Dec 13, 2021
• Print ISSN: 1751-7311
• Publisher: Cambridge University Press
• Peer Reviewed: Peer Reviewed
• Volume: 15
• Issue: 2
• DOI: https://doi.org/10.1016/j.animal.2020.100124
• Keywords: Chicken egg yolk immunoglobulin; Cytokines; E. coli; Immunoglobulins; Performance
• Public URL: https://rvc-repository.worktribe.com/output/1553125