The effect of peptide product and ZnO on growth performance in nursery pigs fed different levels of crude protein diets

This experiment was conducted to determine the impact of a fish-porcine-microbial peptide cocktail (FPM) with/o ZnO supplementation on growth performance in nursery pigs fed diets containing low or adequate crude protein. A total of 288 weaned pigs (21 d) were blocked by initial BW and allotted to p...

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Bibliographic Details
Published inJournal of animal science Vol. 96; p. 325
Main Authors Knapp, J, Tsai, T, Maxwell, C, Apple, J, Chewning, J
Format Journal Article
LanguageEnglish
Published Champaign Oxford University Press 01.12.2018
Subjects
Data processing
Diet
Dietary supplements
Fish meal
Hogs
Low protein diet
Microorganisms
Nutrient deficiency
Peptides
Physical growth
Proteins
Soybeans
Swine
Zinc oxide
Zinc oxides
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Summary:This experiment was conducted to determine the impact of a fish-porcine-microbial peptide cocktail (FPM) with/o ZnO supplementation on growth performance in nursery pigs fed diets containing low or adequate crude protein. A total of 288 weaned pigs (21 d) were blocked by initial BW and allotted to pens. (6 replicates per treatment). Pens were randomly assigned to 1 of 8 dietary treatments: 1) Adequate protein (AP) with ZnO and Fishmeal (phase 2, FM) or soybean meal (phase 3, SBM). 2) low protein (LP) diet devoid FM in phase 2 and reduced SBM in phase 3. 3-8) LP ZnO free diet in nursery phase 2/3 with increasing FPM (0.05, 0.25, 0.5%) with or without ZnO. Data were analyzed using PROC MIXED procedures of SAS with treatments as fixed effect and initial BW block as random effect. Orthogonal contrasts were performed to determine the effects of increasing FPM. ADG increased with increasing dietary FPM in pigs fed diets containing ZnO compared to pigs fed diet devoid of ZnO in nursery phase 2 (Linear FPM X ZnO, P < 0.01) & 3 (Quadratic FPM X ZnO, P < 0.05). End BW was higher for pigs fed AP diet when compared to NC (P < 0.01). BW increased with increasing FPM in pigs fed ZnO, while little or no response was observed in pigs fed ZnO free diets (Quadratic FPM X ZnO P < 0.02). Pigs fed 0.25 and 0.50% FPM with ZnO resulted in significantly higher feed intake among all treatments in nursery phase 3 (P < 0.05). During phase 2, increasing the level of FPM increased G:F in pigs fed diets with ZnO (P < 0.001) only. This study validated our previous finding that the growth promoting and intake enhancement effect of FPM in nursery pigs is ZnO dependent.
ISSN:0021-8812
1525-3163