Dietary interventions affecting intestinal health in pigs and broiler chickens

Date

6-2018

Abstract

Three studies were conducted to determine the interactions of zinc, seaweed meal, and dried fermentation biomass and intestinal health in pigs and broiler chickens. The first two studies were conducted to determine the effect of supplemental zinc sources and zinc feeding regimen, and seaweed meal on growth performance, diarrhea occurrence, blood cell composition and gut health biomarkers in nursery pigs. The third study was conducted to determine the feeding value of dried fermentation biomass (DFB) in broilers and its effects on production performance, caloric efficiency, and intestinal health. The results showed that supplemental Zn improved (P< 0.05) nursery growth performance, reduced the level of I-FABP, and reduced the diarrhea occurrence regardless of the Zn source. The dietary addition of seaweed meal improved (P< 0.05) nursery growth performance and reduced diarrhea occurrence but no effect on gut health biomarkers was observed. Seaweed meal can effectively replace AGP in preventing postweaning diarrhea. Broilers fed increasing levels of DFB from L-Lys production had no effect on growth performance and intestinal morphometry; however, the DFB from monosodium L-glutamate production linearly reduced (P< 0.01) ADG and F/G, and reduced the villous height in the jejunum.

Document Type

Dissertation

Degree

Doctor of Philosophy in Animal Science

College

Graduate School (GS)

Adviser/Committee Chair

Rommel C. Sulabo

Committee Member

Agapita J. Salces, Florinia E. Merca, Amado A. Angeles, Rommel C. Sulabo

Language

English

LC Subject

Broilers (Chickens) -- Feeding and feeds, Swine -- Feeding and feeds, Swine -- Health, Broilers (Chickens) -- Health, Gastrointestinal system -- Diseases -- Diet therapy, Feeds -- Composition, Animal Science Institute of Animal Science

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 996 2018 A5 L86

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