Effect of dietary copper source (inorganic vs. chelated) on immune response, mineral status, and fecal mineral excretion in nursery piglets. Issue 1 (1st January 2018)

• Record Type: Journal Article
• Authors: Liao, Peng; Shu, Xugang; Tang, Min; Tan, Bie; Yin, Yulong
• Is Part Of: Food and agricultural immunology. Volume 29:Issue 1(2018)
• Page Start: 548
• Page End: 563
• Publication Date: 2018-01-01
• Subjects: N-carbamylglutamate chelate -- copper source -- growth performance -- fecal cu excretion -- nursery piglets; Immunochemistry -- Periodicals; Food -- Analysis -- Periodicals; Immunoassay -- Periodicals; 616.079
• DOI: 10.1080/09540105.2017.1416068
• Languages: English
• ISSNs: 0954-0105

Abstract

ABSTRACT: This experiment was conducted to determine the effect of dietary supplementation with copper sulfate and cupreous N-carbamylglutamate chelate (NCG-Cu) on the growth performance, serum biochemical profile, immune response, tissue mineral distributions, and fecal excretion of minerals in nursery piglets. Eighteen healthy nursery piglets were randomly assigned to 3 dietary treatments consisting of no copper in either form (control), 650 g/t copper sulfate (650 g/t Cu) or 320 g/t NCG-Cu (320 g/t NCG-Cu) for 35 days. Pigs fed the 320 g/t NCG-Cu diet showed a significantly ( P < 0.05) elevated growth rate, feed conversion efficiency, IgA and IgM levels, and decreased diarrhea rate compared to those fed the 650 g/t Cu diet. Fecal copper (Cu) and zinc (Zn) were increased ( P < 0.05) when pigs were fed the 650 g/t Cu diets compared with those fed the 320 g/t NCG-Cu diets. Tissue Cu has limited effects on tissue mineral distribution, except for the distribution in the spleen and liver ( P < 0.05). These results indicated that 320 g/t NCG-Cu (chelated) was as effective as 650 g/t Cu (inorganic Cu) for stimulating growth and the immune response and reducing dietary fecal Cu excretion, thus reducing environmental pollution. Abbreviations: NCG: N-carbamylglutamate chelate; ADG: average daily gain; ADFI: average daily feed intake; F/G: feed to gain ratio; ALB: albumin; GLU: blood glucose; CREA: creatinine; ALP: alkaline phosphatase; ALT: alanine aminotransferase; AST: aspartate amino transferase; GLB: globulin; TC: total cholesterol; TP: total protein; urea: Urea; D-BIL: direct-acting-bilirubin; T-BIL: total bilirubin; UA: urate; CK: creatine kinase; LDH: lactate dehydrogenase; IgG: immunoglobulin G; IgA: immunoglobulin A; IgM: immunoglobulin M; C3 : complement C3 ; LD: longissimus dorsi; ICP-OES: inductively coupled plasma optical emission spectrometry; AA: amino acid; GIT: gastrointestinal; Cu-Met: Cu-methionine; CP: crude protein; NDF: neutral detergent fiber; ADF: acid detergent fiber.