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Submitted June 6, 2022
Published 2022-06-06

Artículos

Vol. 4 No. 2: Revista Investigaciones Agropecuarias

EFFECTS OF SUPPLEMENTING PHARMACOLOGICAL LEVELS OF ZINC OXIDE ON PRODUCTIVE PERFORMANCE, HEMATOLOGICAL PROFILE AND DIARRHEA CONTROL IN PIGS


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Citación:
DOI: ND

Published: 2022-06-06

How to Cite

Mudarra, R., Norato, J., Guerra, R., & Melgar, A. (2022). EFFECTS OF SUPPLEMENTING PHARMACOLOGICAL LEVELS OF ZINC OXIDE ON PRODUCTIVE PERFORMANCE, HEMATOLOGICAL PROFILE AND DIARRHEA CONTROL IN PIGS. Journal of Agricultural Research, 4(2), 58–72. Retrieved from https://revistas.up.ac.pa/index.php/investigaciones_agropecuarias/article/view/2928

Abstract

A total of 36 pigs ((?Landrace x Yorkshire X ?Pietrain; 23±2 day old; 7.41±0.15 kg) were used to evaluate the effect of high levels of zinc (NEZ) supplementation in diets with reduced protein levels on performance, hematological profile and diarrhea incidence in pigs for 42 days post weaning. Pigs were allotted to 3 treatments with 3 replicates per treatment and 4 pigs per replicate during three phases (F) with 14 days/phase. The treatments were: positive control; CP) formulated to meet the nutritional requirements established by the NRC, (2012); negative Control CN) similar to CP, with a reduction of 8 % of lysine and 5% of crude protein; PZ) similar to CN, plus the addition of 1600 y 1500 ppm of Zn as ZnO during F1 y F2, respectively. In phase 3, pigs were fed a common diet without NEZ inclusion. A completely randomized design was used, and the data were contrasted through an analysis of variance (ANOVA) with mean comparisons. Pigs fed PZ diets had better average weight gain (GDP) and feed intake (CDA) during phase F1 and phase F1-2 (P<0.05). An interaction in hemoglobin concentration (Trt*Day= P<0.10), an increase in the percentage of lymphocytes, a lower neutrophil:lymphocyte ratio, as well as higher percentages of fecal dry matter were found in pigs fed PZ (P < 0.05). In conclusion, NEZ supplementation improves GDP, reduces the incidence of diarrhea and modulate the leukocyte profile in pigs during the first month after weaning.

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